US20010020626A1 - Interfolded dispenser napkins - Google Patents
Interfolded dispenser napkins Download PDFInfo
- Publication number
- US20010020626A1 US20010020626A1 US09/776,395 US77639501A US2001020626A1 US 20010020626 A1 US20010020626 A1 US 20010020626A1 US 77639501 A US77639501 A US 77639501A US 2001020626 A1 US2001020626 A1 US 2001020626A1
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- US
- United States
- Prior art keywords
- napkin
- sheet
- napkins
- assembly
- gsm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/24—Interfolding sheets, e.g. cigarette or toilet papers
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
- A47K10/32—Dispensers for paper towels or toilet-paper
- A47K10/42—Dispensers for paper towels or toilet-paper dispensing from a store of single sheets, e.g. stacked
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
- A47K10/32—Dispensers for paper towels or toilet-paper
- A47K10/42—Dispensers for paper towels or toilet-paper dispensing from a store of single sheets, e.g. stacked
- A47K2010/428—Details of the folds or interfolds of the sheets
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/2419—Fold at edge
- Y10T428/24215—Acute or reverse fold of exterior component
- Y10T428/24231—At opposed marginal edges
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/2419—Fold at edge
- Y10T428/24264—Particular fold structure [e.g., beveled, etc.]
Definitions
- This invention generally relates to the field of paper products, and more specifically, to dispenser napkins.
- Dispensers may be used to provide napkins in settings such as restaurants and stadiums. Typically, the napkins are folded and stacked together, and then loaded into a dispenser. The user grasps the edge of the leading napkin in the dispenser opening for obtaining a napkin.
- a stacked napkin arrangement that provides consistent one-at-a-time napkin dispensing to reduce waste and costs and variable loading arrangements will improve over conventional stacked napkins.
- the term “cellulosic material” refers to material that may be prepared from cellulose fibers from synthetic source or natural sources, such as woody and non-woody plants. Woody plants include, for example, deciduous and coniferous trees. Non-woody plants include, for example, cotton, flax, esparto grass, milkweed, straw, jute, hemp, and bagasse.
- the cellulose fibers may be modified by various treatments such as, for example, thermal, chemical and/or mechanical treatments. It is contemplated that reconstituted and/or synthetic cellulose fibers may be used and/or blended with other cellulose fibers of the fibrous cellulosic material. Desirably, no synthetic fibers are woven into the cellulosic material fibers.
- Pulp refers to cellulosic fibrous material from sources such as woody and non-woody plants.
- Woody plants include, for example, deciduous and coniferous trees.
- Non-woody plants include, for example, cotton, flax, esparto grass, milkweed, straw, jute, hemp, and bagasse.
- Pulp may be modified by various treatments such as, for example, thermal, chemical and/or mechanical treatments. Desirably, no synthetic fibers are woven into the pulp fibers.
- nonwoven web refers to a web that has a structure of individual fibers or filaments which are interlaid forming a matrix, but not in an identifiable repeating manner.
- Nonwoven webs have been, in the past, formed by a variety of processes known to those skilled in the art such as, for example, meltblowing, spunbonding, wet-forming and various bonded carded web processes.
- spunbonded web refers to a web of small diameter fibers and/or filaments which are formed by extruding a molten thermoplastic material as filaments from a plurality of fine, usually circular, capillaries in a spinneret with the diameter of the extruded filaments then being rapidly reduced, for example, by non-eductive or eductive fluid-drawing or other well known spunbonding mechanisms.
- the production of spunbonded nonwoven webs is illustrated in patents such as Appel, et al., U.S. Pat. No. 4,340,563.
- meltblown fibers means fibers formed by extruding a molten thermoplastic material through a plurality of fine, usually circular, die capillaries as molten threads or filaments into a high-velocity gas (e.g. air) stream which attenuates the filaments of molten thermoplastic material to reduce their diameters, which may be to microfiber diameter. Thereafter, the meltblown fibers are carried by the high-velocity gas stream and are deposited on a collecting surface to form a web of randomly disbursed meltblown fibers.
- a high-velocity gas e.g. air
- BW Basis weight
- napkin assembly refers to a stacked, interfolded arrangement of napkins, which may be in the form of napkin sheets.
- the term “napkin sheet” refers to a plurality of napkins connected together in series by a plurality of tabs separated by slits perforating the sheet. Individual napkins may be separated at the perforations during dispensing.
- the napkin sheet may include one or more plies.
- machine direction (hereinafter may be referred to as “MD”) is the direction of a material parallel to its forward direction during processing.
- machine direction tensile (hereinafter may be referred to as “MDT”) is the breaking force in the machine direction required to rupture a three inch width specimen.
- MDT machine direction tensile
- the results may be reported as gram-force and abbreviated as “gf”.
- the MDT may be determined using test method number ASTM D5035-95.
- tab strength is the breaking force in the machine direction required to rupture a sheet product along its perforations.
- the results may be reported as gram-force and abbreviated as “gf”.
- the MDT may be determined using test method number ASTM D5035-95.
- tab width to slit width ratio refers to the ratio of the average width of a tab divided by the average width of a slit for a paper product.
- caliper refers to the thickness measurement of a sheet taken under constant force.
- the caliper may be determined using test method number TAPPI 411-OM-89.
- the napkin assembly may include a first napkin sheet further including a plurality of napkins and a second napkin sheet further including a plurality of napkins.
- Each napkin of both sheets has a basis weight from about 20 gsm to about 40 gsm and may be connected to an adjacent napkin in series by a plurality of tabs.
- the second napkin sheet may be positioned proximate to the first napkin sheet in an offset relation and the first and second napkin sheets may be formed into a nested configuration for dispensing.
- each napkin of the first and second napkin sheets may include a first member integrally formed with a second member. These members may form a fold therebetween. At least one napkin from the first napkin sheet may terminate at about the fold of a respective napkin from the second napkin sheet.
- At least 500 napkins from the first napkin sheet may terminate at about the fold of a respective napkin from the second napkin sheet.
- the napkin basis weight may be about 30 gsm
- the machine direction tensile may be greater than about 2000 g f
- the T/S ratio may be greater than about 0.03
- the tab strength may be greater than about 30 g f .
- the napkins may include pulp fibers.
- a napkin assembly for a dispenser may include a first napkin sheet further including a plurality of napkins and a second napkin sheet further including a plurality of napkins. Each napkin of both sheets may be connected to an adjacent napkin in series by a plurality of tabs.
- each napkin of the first and second napkin sheets may include a first member, a second member, and a third member wherein the first member may be formed integrally with the second member forming a first fold between the first and second members and the second member may be formed integrally with the third member forming a second fold between the second and third members.
- At least one napkin from the first napkin sheet may terminate at about the second fold of a respective napkin from the second napkin sheet when nestably configured for dispensing.
- At least 500 napkins from the first napkin sheet may terminate at about the second fold of a respective napkin from the second napkin sheet.
- the napkin basis weight may be from about 20 gsm to about 40 gsm.
- the napkin basis weight may be about 30 gsm
- the machine direction tensile may be greater than about 2000 g f
- the T/S ratio may be greater than about 0.03
- the tab strength may be greater than about 30 g f .
- the napkins may include pulp fibers.
- a further embodiment of the present invention is a napkin assembly for a dispenser.
- the napkin assembly may include a first napkin sheet further including a plurality of napkins and a second napkin sheet further including a plurality of napkins.
- Each napkin may be connected to an adjacent napkin in series by a plurality of tabs.
- each napkin of the first and second napkin sheets may include a first member, a second member, a third member, and a fourth member.
- the first member may be formed integrally with the second member forming a first fold between the first and second members
- the second member may be formed integrally with the third member forming a second fold between the second and third members
- the third member may be formed integrally with the fourth member forming a third fold between the third and fourth members.
- the second and third members may have a length about twice that of the first and fourth members. At least one napkin from the first napkin sheet may terminate at about the middle of a third member of a respective napkin from the second napkin sheet when nestably configured for dispensing.
- At least 500 napkins from the first napkin sheet may terminate at about the middle of a third member of a respective napkin from the second napkin sheet.
- the napkin basis weight may be from about 20 gsm to about 40 gsm.
- the napkin basis weight may be about 30 gsm
- the machine direction tensile may be greater than about 2000 g f
- the T/S ratio may be greater than about 0.03
- the tab strength may be greater than about 30 g f .
- the napkins may include pulp fibers.
- FIG. 1 is a front, plan view, but not necessarily to scale, of one embodiment of a plurality of napkins.
- FIG. 2 is a side, exploded view, but not necessarily to scale, of one embodiment of a napkin assembly having two interfolded napkin sheets.
- FIG. 3 is a side, elevational view, but not necessarily to scale, of one embodiment of a napkin assembly in a nested configuration.
- FIG. 4 is a front, plan view, but not necessarily to scale, of a second embodiment of a plurality of napkins.
- FIG. 5 is a side, exploded view, but not necessarily to scale, of a second embodiment of a napkin assembly having two interfolded napkin sheets.
- FIG. 6 is a side, elevational view, but not necessarily to scale, of a third embodiment of a napkin assembly in a nested configuration.
- FIG. 7 is a front, plan view, but not necessarily to scale, of a third embodiment of a plurality of napkins.
- FIG. 8 is a side, exploded view, but not necessarily to scale, of a third embodiment of a napkin assembly having two interfolded napkin sheets.
- FIG. 9 is a side, elevational view but not necessarily to scale, of a third embodiment of a napkin assembly in a nested configuration.
- FIG. 10 is a perspective view of an open napkin dispenser housing a napkin assembly.
- FIGS. 1 - 3 there is depicted a napkin assembly 100 having a first napkin sheet 110 and a second napkin sheet 150 .
- the first and second napkin sheets 110 and 150 may be substantially identical. As a result, only the first napkin sheet 110 is discussed in detail hereinafter.
- the first napkin sheet 110 may include a plurality of napkins 115 .
- nodes (identified by the letter “N”) may be placed on the drawings to merely indicate perforations or slits 126 separating individual napkins. These nodes are not actually present on the desired embodiments.
- FIG. 1 there is shown a portion of a napkin sheet 110 depicting a plurality of napkins 115 that may include napkins 120 a and 120 b .
- the napkins may be attached together with a plurality of tabs 124 .
- These tabs may be separated by a plurality of slits 126 perforating the sheet 110 .
- the tabs 124 may range from about 1 millimeter to about 10 millimeter and may be manufactured by any method readily recognizable to one of ordinary skill in the art.
- the tabs 124 are depicted as having the same length and as evenly spaced across the sheet 110 , it should be understood that the tabs 124 may be of various sizes or unevenly spaced in alternative embodiments.
- the tabs 124 may be positioned on only one half of the sheet 110 .
- the tabs 124 may be varied in size in relation to the slits 126 depending upon the properties of the sheet 110 .
- some or all of the tabs 124 may have a length twice that of an adjacent slit 126 .
- This tabbed structure may permit separating the napkins 120 a and 120 b during dispensing and may be used to connect subsequent napkins, such as the napkins 120 c and 120 d , as well.
- Napkins 120 a and 120 b may be substantially identical, consequently, only napkin 120 a is discussed in detail hereinafter.
- the napkin 120 a may include a first member 128 a and a second member 130 a .
- the members 128 a and 130 a having approximately the same dimensions may be formed integrally together creating a fold 140 a therebetween.
- the fold 140 a may permit the napkin 120 a from the first sheet 110 to be interfolded with a napkin 160 a from the second sheet 150 .
- the first and second napkin sheets 110 and 150 may be interfolded to form a nested configuration 185 as shown in FIG. 3.
- the depicted napkin assembly 100 consists of eight napkins, desirably the napkin assembly 100 may include from about 200 to about 1000 napkins. Furthermore, it is contemplated that even larger numbers of napkins may be used.
- the sheets 110 and 150 may be positioned in an offset relation 180 .
- the second sheet 150 may include a plurality of napkins 155 where each napkin 160 a - d may include, respectively, a first member 168 a - d , a second member 170 a - d , and a fold 172 a - d , similar to the previously described napkins 120 a - d of the first napkin sheet 110 .
- the napkin 120 a may terminate at tabs 124 at about the corresponding location of the fold 172 a of the napkin 160 a .
- Napkins 120 b - d of the first sheet 110 may terminate in the same manner to correspond with respective napkins 160 b - d of the second sheet 150 .
- FIGS. 4 - 6 there is depicted another napkin assembly 200 having a first napkin sheet 210 and a second napkin sheet 260 .
- the first and second napkin sheets 210 and 260 may be substantially identical. As a result, only the first napkin sheet 210 is discussed in detail hereinafter.
- the first napkin sheet 210 may include a plurality of napkins 215 .
- nodes “N” are placed on the drawings to merely indicate the perforations or slits 226 separating individual napkins. These nodes are not actually present on the desired embodiments.
- FIG. 4 there is shown a portion of a napkin sheet 210 depicting a plurality of napkins 215 that may include napkins 220 a and 220 b .
- the napkins 220 a and 220 b may be attached together with a plurality of tabs 224 .
- These tabs 224 may be separated by a plurality of slits 226 perforating the sheet 210 .
- the tabs 224 may range from about 1 millimeter to about 10 millimeter and may be manufactured by any method readily recognizable to one of ordinary skill in the art.
- tabs 224 are depicted as having the same width and as evenly spaced across the sheet 210 , it should be understood that the tabs 224 may be of various sizes or unevenly spaced in alternative embodiments. As an example, the tabs 224 may be positioned on only one half of the sheet 210 . In addition, the tabs 224 may be varied in size in relation to the slits 226 depending upon the properties of the sheet 210 . As an example, some or all of the tabs 224 may have a length twice that of an adjacent slit 226 .
- This tabbed structure may permit separating the napkins 220 a and 220 b during dispensing and may be used to connect subsequent napkins, such as napkins 220 c and 220 d , as well.
- Napkins 220 a and 220 b may be substantially identical, consequently, only napkin 220 a is discussed in detail hereinafter.
- the napkin 220 a may include a first member 228 a , a second member 230 a , and a third member 232 a .
- the members 228 a , 230 a , and 232 a having approximately the same dimensions may be formed integrally together.
- Members 228 a and 230 a may form a fold 240 a and members 230 a and 232 a may form a fold 242 a .
- the folds 240 a and 242 a may permit the napkin 220 a from the first sheet 210 to be interfolded with a napkin 270 a from the second sheet 260 .
- the first and second napkin sheets 210 and 260 may be interfolded to form a nested configuration 295 as shown in FIG. 6.
- the depicted napkin assembly 200 consists of eight napkins, desirably the napkin assembly 200 may include from about 200 to about 1000 napkins. Furthermore, it is contemplated that even larger numbers of napkins may be used.
- the second napkin sheet 260 may include a plurality of napkins 265 where each napkin 270 a - d may include a first member 278 a - d , a second member 280 a - d , a third member 282 a - d , a first fold 284 a - d , and a second fold 286 a - d , similar to the previously described napkins 220 a - d of the first napkin sheet 210 .
- the napkin 220 a may terminate at tabs 224 at about the corresponding location of the second fold 286 a of the second sheet napkin 270 a . This position may align the perforated section of the napkin 220 a with the fold 286 a of the napkin 270 a .
- Napkins 220 b - d of the first sheet 210 may terminate in the same manner to correspond with respective napkins 270 b - d of the second sheet 260 .
- FIGS. 7 - 9 there is depicted a further napkin assembly 300 having a first napkin sheet 310 and a second napkin sheet 360 .
- the first and second napkin sheets 310 and 360 may be substantially identical. As a result, only the first napkin sheet 310 is discussed in detail hereinafter.
- the first napkin sheet 310 may include a plurality of napkins 315 .
- nodes “N” are placed on the drawings to merely indicate perforations separating individual napkins. These nodes are not actually present on the desired embodiments.
- FIG. 7 there is shown a portion of a napkin sheet 310 depicting a plurality of napkins 215 that may include napkins 320 a and 320 b .
- the napkins 320 a and 320 b may be attached together with a plurality of tabs 324 .
- These tabs 324 may be separated by a plurality of slits 326 perforating the sheet 310 .
- the tabs 324 may range from about 1 millimeter to about 10 millimeter and may be manufactured by any method readily recognizable to one of ordinary skill in the art.
- tabs 324 are depicted as having the same width and as evenly spaced across the sheet 310 , it should be understood that the tabs 324 may be of various sizes or unevenly spaced in alternative embodiments. As an example, the tabs 324 may be positioned on only one half of the sheet 310 . In addition, the tabs 324 may be varied in size in relation to the slits 326 depending upon the properties of the sheet 310 . As an example, some or all of the tabs 324 may have a length twice that of an adjacent slit 326 .
- This tabbed structure may permit separating the napkins 320 a and 320 b during dispensing and may be used to connect subsequent napkins, such as napkins 320 c and 320 d , as well.
- Napkins 320 a and 320 b may be substantially identical, consequently, only napkin 320 a is discussed in detail hereinafter.
- the napkin 320 a may include a first member 328 a , a second member 332 a , a third member 336 a , and a fourth member 340 a .
- the members 328 a , 332 a , 336 a , and 340 a may be formed integrally together.
- Members 328 a and 332 a may form a fold 344 a
- members 332 a and 336 a may form a fold 346 a
- members 336 a and 340 a may form a fold 348 a .
- the lengths 330 a and 342 a of respective members 328 a and 340 a may be about half the length 334 a and 338 a of respective members 332 a and 336 a .
- the folds 344 a , 346 a , and 348 a may permit the napkin 320 a from the first sheet 310 to be interfolded with a napkin 370 a from the second sheet 360 .
- the first and second napkin sheets 310 and 360 may be interfolded to form a nested configuration 395 as shown in FIG. 9.
- the napkin assembly 300 consists eight napkins, desirably the napkin assembly 300 may include from about 200 to about 1000 napkins. Furthermore, it is contemplated that even larger numbers of napkins may be used.
- the sheets 310 and 360 may be positioned in an offset relation 392 .
- the second napkin sheet 360 may include a plurality of napkins 365 where each napkin 370 a - d may include a first member 378 a - d , a second member 380 a - d , a third member 382 a - d , and a fourth member 384 a - d , similar to the previously described napkins 320 a - d of the first napkin sheet 310 .
- the napkin 320 a may terminate at tabs 324 at about the corresponding location of the middle of the third member 382 a of the napkin 370 a . This positions may align the perforated section of the napkin 320 a with about the midpoint of the member 382 a .
- Napkins 320 b - d of the first sheet 310 may terminate in the same manner to correspond with respective napkins 370 b - d of the second sheet 360 .
- the napkins may be constructed from cellulosic fibers, nonwoven materials, or combinations of both materials.
- the basis weight of the napkins may vary from about 10 gram-force per square meter (hereinafter may be abbreviated as “gsm”) to about 50 gsm, desirably from about 20 gsm to about 40 gsm, and more desirably about 30 gsm.
- An exemplary napkin dispenser 400 which is disclosed in application Ser. No. 08/991,669, entitled, “Container And Cartridge For Dispensing Paper Product,” hereby incorporated by reference, may hold a napkin assembly 300 , although napkin assemblies 100 and 200 may be used as well.
- the dispenser 400 may be vertical with the napkins fed by gravity or horizontal with a spring to force napkins from the dispenser.
- a first member 328 of the napkin sheet 310 may protrude from the dispenser to be grasped by a user. Grasping and pulling the member 328 a may pull a portion of the napkin 370 a of the second sheet 360 from the dispenser 400 .
- the user may pull the napkin 320 a to tear along the tabs 324 for obtaining one napkin.
- the user may obtain a napkin 320 a for use while still leaving a portion of the next napkin outside the dispenser for the next user to grasp.
- this invention may permit one-at-a-time napkin dispensing and minimize waste.
- the other napkin assemblies 100 and 200 operate in the same manner.
- removing one napkin from a sheet results in the positioning a napkin from the other sheet outside the dispenser 400 for grasping by a user.
- the napkin assemblies 200 , 300 , and 400 may be inverted so that either end may dispense individual napkins.
- T/S tab width to slit width
- the T/S value of napkins is generally 0.04 while the T/S value of toilet tissue products is generally 0.02. This higher ratio creates a stronger connection between napkins, which in turn, prevents inadvertent separation of the napkins within the dispenser during dispensing.
- Table 1 depicts data from a napkin sheet of the present invention and an interfolded toilet tissue.
- the napkin tends to have a higher basis weight, caliper measurement, and machine direction tensile than the toilet tissue product.
- the napkin has different physical properties created for its intended use, which may present different dispensing properties than toilet tissue.
- Table 2 depicts data regarding perforated structure for the paper products of Table 1.
- the slit width of the toilet tissue product is over twice that of the napkin, and likewise, the tab strength is less than a quarter of the napkin.
- greater slit widths in toilet tissue result in less tabs present in the sheet.
- Toilet tissue may be constructed with less tabs because of its smaller sheet size, which may require less pulling force during dispensing. Napkins tend to be bigger sheet products, and as a result, more force may be required to pull napkins from the dispenser. Thus, smaller slit widths, and thereby more tabs, may prevent unintentional napkin sheet separation during dispensing.
Abstract
The present invention provides a napkin assembly for a dispenser. The napkin assembly may include a first napkin sheet further including a plurality of napkins and a second napkin sheet further including a plurality of napkins. Each napkin of both sheets having a basis weight from about 20 gsm to about 40 gsm may be connected to an adjacent napkin in series by a plurality of tabs. The second napkin sheet may be positioned proximate to the first napkin sheet in an offset relation and the first and second napkin sheets may be formed into a nested configuration for dispensing.
Description
- This invention generally relates to the field of paper products, and more specifically, to dispenser napkins.
- Dispensers may be used to provide napkins in settings such as restaurants and stadiums. Typically, the napkins are folded and stacked together, and then loaded into a dispenser. The user grasps the edge of the leading napkin in the dispenser opening for obtaining a napkin.
- However, these stacked arrangements of napkins suffer several disadvantages. Often, the user cannot find an edge or flap of the leading napkin. As a result, the user pinches several napkins and removes them from the dispenser instead of dispensing the napkins one-at-a-time. Often, this is more napkins than the user needs. Consequently, napkins are wasted, which in turn, increases costs to the establishment owner. Furthermore, some napkins if improperly loaded may not properly dispense. As an example, loading a stack of napkins backward may not present an edge or a flap for a user to grasp. Consequently, the napkins must be removed from the dispenser and reloaded.
- Accordingly, a stacked napkin arrangement that provides consistent one-at-a-time napkin dispensing to reduce waste and costs and variable loading arrangements will improve over conventional stacked napkins.
- As used herein, the term “cellulosic material” refers to material that may be prepared from cellulose fibers from synthetic source or natural sources, such as woody and non-woody plants. Woody plants include, for example, deciduous and coniferous trees. Non-woody plants include, for example, cotton, flax, esparto grass, milkweed, straw, jute, hemp, and bagasse. The cellulose fibers may be modified by various treatments such as, for example, thermal, chemical and/or mechanical treatments. It is contemplated that reconstituted and/or synthetic cellulose fibers may be used and/or blended with other cellulose fibers of the fibrous cellulosic material. Desirably, no synthetic fibers are woven into the cellulosic material fibers.
- As used herein, the term “pulp” refers to cellulosic fibrous material from sources such as woody and non-woody plants. Woody plants include, for example, deciduous and coniferous trees. Non-woody plants include, for example, cotton, flax, esparto grass, milkweed, straw, jute, hemp, and bagasse. Pulp may be modified by various treatments such as, for example, thermal, chemical and/or mechanical treatments. Desirably, no synthetic fibers are woven into the pulp fibers.
- As used herein, the term “nonwoven web” refers to a web that has a structure of individual fibers or filaments which are interlaid forming a matrix, but not in an identifiable repeating manner. Nonwoven webs have been, in the past, formed by a variety of processes known to those skilled in the art such as, for example, meltblowing, spunbonding, wet-forming and various bonded carded web processes.
- As used herein, the term “spunbonded web” refers to a web of small diameter fibers and/or filaments which are formed by extruding a molten thermoplastic material as filaments from a plurality of fine, usually circular, capillaries in a spinneret with the diameter of the extruded filaments then being rapidly reduced, for example, by non-eductive or eductive fluid-drawing or other well known spunbonding mechanisms. The production of spunbonded nonwoven webs is illustrated in patents such as Appel, et al., U.S. Pat. No. 4,340,563.
- As used herein, the term “meltblown fibers” means fibers formed by extruding a molten thermoplastic material through a plurality of fine, usually circular, die capillaries as molten threads or filaments into a high-velocity gas (e.g. air) stream which attenuates the filaments of molten thermoplastic material to reduce their diameters, which may be to microfiber diameter. Thereafter, the meltblown fibers are carried by the high-velocity gas stream and are deposited on a collecting surface to form a web of randomly disbursed meltblown fibers. The meltblown process is well-known and is described in various patents and publications, including NRL Report 4364, “Manufacture of Super-Fine Organic Fibers” by V. A. Wendt, E. L. Boone, and C. D. Fluharty; NRL Report 5265, “An Improved Device for the Formation of Super-Fine Thermoplastic Fibers” by K. D. Lawrence, R. T. Lukas, and J. A. Young; and U.S. Pat. No. 3,849,241, issued Nov. 19, 1974, to Buntin, et al.
- As used herein, the term “basis weight” (hereinafter may be referred to as “BW”) is the weight per unit area of a sample and may be reported as gram-force per meter squared and may be hereinafter abbreviated as “gfms”. The basis weight may be calculated using test procedure ASTM D 3776-96.
- As used herein, the term “napkin assembly” refers to a stacked, interfolded arrangement of napkins, which may be in the form of napkin sheets.
- As used herein, the term “napkin sheet” refers to a plurality of napkins connected together in series by a plurality of tabs separated by slits perforating the sheet. Individual napkins may be separated at the perforations during dispensing. The napkin sheet may include one or more plies.
- As used herein, the term “machine direction” (hereinafter may be referred to as “MD”) is the direction of a material parallel to its forward direction during processing.
- As used herein, the term “machine direction tensile” (hereinafter may be referred to as “MDT”) is the breaking force in the machine direction required to rupture a three inch width specimen. The results may be reported as gram-force and abbreviated as “gf”. The MDT may be determined using test method number ASTM D5035-95.
- As used herein, the term “tab strength” is the breaking force in the machine direction required to rupture a sheet product along its perforations. The results may be reported as gram-force and abbreviated as “gf”. The MDT may be determined using test method number ASTM D5035-95.
- As used herein, the term “tab width to slit width ratio” (hereinafter may be referred to as “T/S”) refers to the ratio of the average width of a tab divided by the average width of a slit for a paper product.
- As used herein, the term “caliper” refers to the thickness measurement of a sheet taken under constant force. The caliper may be determined using test method number TAPPI 411-OM-89.
- The problems and needs described above are addressed by the present invention, which provides a napkin assembly for a dispenser. The napkin assembly may include a first napkin sheet further including a plurality of napkins and a second napkin sheet further including a plurality of napkins. Each napkin of both sheets has a basis weight from about 20 gsm to about 40 gsm and may be connected to an adjacent napkin in series by a plurality of tabs. The second napkin sheet may be positioned proximate to the first napkin sheet in an offset relation and the first and second napkin sheets may be formed into a nested configuration for dispensing.
- Furthermore, each napkin of the first and second napkin sheets may include a first member integrally formed with a second member. These members may form a fold therebetween. At least one napkin from the first napkin sheet may terminate at about the fold of a respective napkin from the second napkin sheet.
- Moreover, at least 500 napkins from the first napkin sheet may terminate at about the fold of a respective napkin from the second napkin sheet.
- In addition, the napkin basis weight may be about 30 gsm, the machine direction tensile may be greater than about 2000 gf, the T/S ratio may be greater than about 0.03, and the tab strength may be greater than about 30 gf. What is more, the napkins may include pulp fibers.
- Another embodiment of a napkin assembly for a dispenser may include a first napkin sheet further including a plurality of napkins and a second napkin sheet further including a plurality of napkins. Each napkin of both sheets may be connected to an adjacent napkin in series by a plurality of tabs. What is more, each napkin of the first and second napkin sheets may include a first member, a second member, and a third member wherein the first member may be formed integrally with the second member forming a first fold between the first and second members and the second member may be formed integrally with the third member forming a second fold between the second and third members. At least one napkin from the first napkin sheet may terminate at about the second fold of a respective napkin from the second napkin sheet when nestably configured for dispensing.
- Furthermore, at least 500 napkins from the first napkin sheet may terminate at about the second fold of a respective napkin from the second napkin sheet. Also, the napkin basis weight may be from about 20 gsm to about 40 gsm. Moreover, the napkin basis weight may be about 30 gsm, the machine direction tensile may be greater than about 2000 gf, the T/S ratio may be greater than about 0.03, and the tab strength may be greater than about 30 gf. Additionally, the napkins may include pulp fibers.
- A further embodiment of the present invention is a napkin assembly for a dispenser. The napkin assembly may include a first napkin sheet further including a plurality of napkins and a second napkin sheet further including a plurality of napkins. Each napkin may be connected to an adjacent napkin in series by a plurality of tabs. What is more, each napkin of the first and second napkin sheets may include a first member, a second member, a third member, and a fourth member. The first member may be formed integrally with the second member forming a first fold between the first and second members, the second member may be formed integrally with the third member forming a second fold between the second and third members, and the third member may be formed integrally with the fourth member forming a third fold between the third and fourth members. The second and third members may have a length about twice that of the first and fourth members. At least one napkin from the first napkin sheet may terminate at about the middle of a third member of a respective napkin from the second napkin sheet when nestably configured for dispensing.
- Furthermore, at least 500 napkins from the first napkin sheet may terminate at about the middle of a third member of a respective napkin from the second napkin sheet. Additionally, the napkin basis weight may be from about 20 gsm to about 40 gsm. Likewise, the napkin basis weight may be about 30 gsm, the machine direction tensile may be greater than about 2000 gf, the T/S ratio may be greater than about 0.03, and the tab strength may be greater than about 30 gf. In addition, the napkins may include pulp fibers.
- FIG. 1 is a front, plan view, but not necessarily to scale, of one embodiment of a plurality of napkins.
- FIG. 2 is a side, exploded view, but not necessarily to scale, of one embodiment of a napkin assembly having two interfolded napkin sheets.
- FIG. 3 is a side, elevational view, but not necessarily to scale, of one embodiment of a napkin assembly in a nested configuration.
- FIG. 4 is a front, plan view, but not necessarily to scale, of a second embodiment of a plurality of napkins.
- FIG. 5 is a side, exploded view, but not necessarily to scale, of a second embodiment of a napkin assembly having two interfolded napkin sheets.
- FIG. 6 is a side, elevational view, but not necessarily to scale, of a third embodiment of a napkin assembly in a nested configuration.
- FIG. 7 is a front, plan view, but not necessarily to scale, of a third embodiment of a plurality of napkins.
- FIG. 8 is a side, exploded view, but not necessarily to scale, of a third embodiment of a napkin assembly having two interfolded napkin sheets.
- FIG. 9 is a side, elevational view but not necessarily to scale, of a third embodiment of a napkin assembly in a nested configuration.
- FIG. 10 is a perspective view of an open napkin dispenser housing a napkin assembly.
- Referring now to the drawings, like reference numerals designate corresponding structure throughout the views and like reference numerals used in conjunction with sequentially ordered lower case letters refer to a series of substantially identical items or components. Referring in particular to FIGS.1-3, there is depicted a napkin assembly 100 having a
first napkin sheet 110 and asecond napkin sheet 150. The first andsecond napkin sheets first napkin sheet 110 is discussed in detail hereinafter. - The
first napkin sheet 110 may include a plurality of napkins 115. Referring to FIGS. 2 and 3, nodes (identified by the letter “N”) may be placed on the drawings to merely indicate perforations or slits 126 separating individual napkins. These nodes are not actually present on the desired embodiments. - Referring to FIG. 1, there is shown a portion of a
napkin sheet 110 depicting a plurality of napkins 115 that may include napkins 120 a and 120 b. The napkins may be attached together with a plurality oftabs 124. These tabs may be separated by a plurality ofslits 126 perforating thesheet 110. Thetabs 124 may range from about 1 millimeter to about 10 millimeter and may be manufactured by any method readily recognizable to one of ordinary skill in the art. Furthermore, although thetabs 124 are depicted as having the same length and as evenly spaced across thesheet 110, it should be understood that thetabs 124 may be of various sizes or unevenly spaced in alternative embodiments. As an example, thetabs 124 may be positioned on only one half of thesheet 110. In addition, thetabs 124 may be varied in size in relation to theslits 126 depending upon the properties of thesheet 110. As an example, some or all of thetabs 124 may have a length twice that of anadjacent slit 126. This tabbed structure may permit separating the napkins 120 a and 120 b during dispensing and may be used to connect subsequent napkins, such as the napkins 120 c and 120 d, as well. Napkins 120 a and 120 b may be substantially identical, consequently, only napkin 120 a is discussed in detail hereinafter. - The napkin120 a may include a first member 128 a and a second member 130 a. The members 128 a and 130 a having approximately the same dimensions may be formed integrally together creating a
fold 140 a therebetween. Thefold 140 a may permit the napkin 120 a from thefirst sheet 110 to be interfolded with anapkin 160 a from thesecond sheet 150. - The first and
second napkin sheets - Referring to FIGS. 2 and 3, the
sheets relation 180. Thesecond sheet 150 may include a plurality ofnapkins 155 where each napkin 160 a-d may include, respectively, a first member 168 a-d, a second member 170 a-d, and a fold 172 a-d, similar to the previously described napkins 120 a-d of thefirst napkin sheet 110. When the assembly 100 is formed into the nested configuration 185, the napkin 120 a may terminate attabs 124 at about the corresponding location of thefold 172 a of thenapkin 160 a. This position may align the perforated section of the napkin 120 a with thefold 172 a of thenapkin 160 a. Napkins 120 b-d of thefirst sheet 110 may terminate in the same manner to correspond withrespective napkins 160 b-d of thesecond sheet 150. - Referring to FIGS.4-6, there is depicted another
napkin assembly 200 having afirst napkin sheet 210 and a second napkin sheet 260. The first andsecond napkin sheets 210 and 260 may be substantially identical. As a result, only thefirst napkin sheet 210 is discussed in detail hereinafter. - The
first napkin sheet 210 may include a plurality ofnapkins 215. Referring to FIGS. 5 and 6, nodes “N” are placed on the drawings to merely indicate the perforations or slits 226 separating individual napkins. These nodes are not actually present on the desired embodiments. - Referring to FIG. 4, there is shown a portion of a
napkin sheet 210 depicting a plurality ofnapkins 215 that may includenapkins 220 a and 220 b. Thenapkins 220 a and 220 b may be attached together with a plurality oftabs 224. Thesetabs 224 may be separated by a plurality ofslits 226 perforating thesheet 210. Thetabs 224 may range from about 1 millimeter to about 10 millimeter and may be manufactured by any method readily recognizable to one of ordinary skill in the art. Furthermore, although thetabs 224 are depicted as having the same width and as evenly spaced across thesheet 210, it should be understood that thetabs 224 may be of various sizes or unevenly spaced in alternative embodiments. As an example, thetabs 224 may be positioned on only one half of thesheet 210. In addition, thetabs 224 may be varied in size in relation to theslits 226 depending upon the properties of thesheet 210. As an example, some or all of thetabs 224 may have a length twice that of anadjacent slit 226. This tabbed structure may permit separating thenapkins 220 a and 220 b during dispensing and may be used to connect subsequent napkins, such asnapkins 220 c and 220 d, as well.Napkins 220 a and 220 b may be substantially identical, consequently,only napkin 220 a is discussed in detail hereinafter. - The
napkin 220 a may include a first member 228 a, a second member 230 a, and a third member 232 a. The members 228 a, 230 a, and 232 a having approximately the same dimensions may be formed integrally together. Members 228 a and 230 a may form a fold 240 a and members 230 a and 232 a may form a fold 242 a. The folds 240 a and 242 a may permit thenapkin 220 a from thefirst sheet 210 to be interfolded with a napkin 270 a from the second sheet 260. - The first and
second napkin sheets 210 and 260 may be interfolded to form a nestedconfiguration 295 as shown in FIG. 6. Although the depictednapkin assembly 200 consists of eight napkins, desirably thenapkin assembly 200 may include from about 200 to about 1000 napkins. Furthermore, it is contemplated that even larger numbers of napkins may be used. - Referring to FIGS. 5 and 6, the
sheets 210 and 260 may be positioned in an offset relation 292. The second napkin sheet 260 may include a plurality of napkins 265 where each napkin 270 a-d may include a first member 278 a-d, a second member 280 a-d, a third member 282 a-d, a first fold 284 a-d, and a second fold 286 a-d, similar to the previously describednapkins 220 a-d of thefirst napkin sheet 210. When theassembly 200 is formed into the nestedconfiguration 295, thenapkin 220 a may terminate attabs 224 at about the corresponding location of the second fold 286 a of the second sheet napkin 270 a. This position may align the perforated section of thenapkin 220 a with the fold 286 a of the napkin 270 a. Napkins 220 b-d of thefirst sheet 210 may terminate in the same manner to correspond with respective napkins 270 b-d of the second sheet 260. - Referring to FIGS.7-9, there is depicted a
further napkin assembly 300 having afirst napkin sheet 310 and a second napkin sheet 360. The first andsecond napkin sheets 310 and 360 may be substantially identical. As a result, only thefirst napkin sheet 310 is discussed in detail hereinafter. - The
first napkin sheet 310 may include a plurality ofnapkins 315. Referring to FIGS. 8 and 9, nodes “N” are placed on the drawings to merely indicate perforations separating individual napkins. These nodes are not actually present on the desired embodiments. - Referring to FIG. 7, there is shown a portion of a
napkin sheet 310 depicting a plurality ofnapkins 215 that may includenapkins napkins tabs 324. Thesetabs 324 may be separated by a plurality ofslits 326 perforating thesheet 310. Thetabs 324 may range from about 1 millimeter to about 10 millimeter and may be manufactured by any method readily recognizable to one of ordinary skill in the art. Furthermore, although thetabs 324 are depicted as having the same width and as evenly spaced across thesheet 310, it should be understood that thetabs 324 may be of various sizes or unevenly spaced in alternative embodiments. As an example, thetabs 324 may be positioned on only one half of thesheet 310. In addition, thetabs 324 may be varied in size in relation to theslits 326 depending upon the properties of thesheet 310. As an example, some or all of thetabs 324 may have a length twice that of anadjacent slit 326. This tabbed structure may permit separating thenapkins napkins 320 c and 320 d, as well.Napkins only napkin 320 a is discussed in detail hereinafter. - The
napkin 320 a may include a first member 328 a, a second member 332 a, a third member 336 a, and a fourth member 340 a. The members 328 a, 332 a, 336 a, and 340 a may be formed integrally together. Members 328 a and 332 a may form afold 344 a, members 332 a and 336 a may form a fold 346 a, and members 336 a and 340 a may form a fold 348 a. Thelengths 330 a and 342 a of respective members 328 a and 340 a may be about half the length 334 a and 338 a of respective members 332 a and 336 a. Thefolds 344 a, 346 a, and 348 a may permit thenapkin 320 a from thefirst sheet 310 to be interfolded with anapkin 370 a from the second sheet 360. - The first and
second napkin sheets 310 and 360 may be interfolded to form a nestedconfiguration 395 as shown in FIG. 9. Although thenapkin assembly 300 consists eight napkins, desirably thenapkin assembly 300 may include from about 200 to about 1000 napkins. Furthermore, it is contemplated that even larger numbers of napkins may be used. - Referring to FIGS. 8 and 9, the
sheets 310 and 360 may be positioned in an offset relation 392. The second napkin sheet 360 may include a plurality ofnapkins 365 where eachnapkin 370 a-d may include a first member 378 a-d, a second member 380 a-d, a third member 382 a-d, and a fourth member 384 a-d, similar to the previously describednapkins 320 a-d of thefirst napkin sheet 310. When theassembly 300 is formed into the nestedconfiguration 395, thenapkin 320 a may terminate attabs 324 at about the corresponding location of the middle of thethird member 382 a of thenapkin 370 a. This positions may align the perforated section of thenapkin 320 a with about the midpoint of themember 382 a.Napkins 320 b-d of thefirst sheet 310 may terminate in the same manner to correspond with respective napkins 370 b-d of the second sheet 360. - The napkins may be constructed from cellulosic fibers, nonwoven materials, or combinations of both materials. The basis weight of the napkins may vary from about 10 gram-force per square meter (hereinafter may be abbreviated as “gsm”) to about 50 gsm, desirably from about 20 gsm to about 40 gsm, and more desirably about 30 gsm.
- These napkins may be interfolded using any method or machine known by one of ordinary skill in the art, such as those disclosed by U.S. Pat. Nos. 1,253,644, 1,302,241, and 1,457,978, which are hereby incorporated by reference.
- An exemplary napkin dispenser400, which is disclosed in application Ser. No. 08/991,669, entitled, “Container And Cartridge For Dispensing Paper Product,” hereby incorporated by reference, may hold a
napkin assembly 300, althoughnapkin assemblies 100 and 200 may be used as well. The dispenser 400 may be vertical with the napkins fed by gravity or horizontal with a spring to force napkins from the dispenser. A first member 328 of thenapkin sheet 310 may protrude from the dispenser to be grasped by a user. Grasping and pulling the member 328 a may pull a portion of thenapkin 370 a of the second sheet 360 from the dispenser 400. The user may pull thenapkin 320 a to tear along thetabs 324 for obtaining one napkin. Thus, the user may obtain anapkin 320 a for use while still leaving a portion of the next napkin outside the dispenser for the next user to grasp. As a result, this invention may permit one-at-a-time napkin dispensing and minimize waste. It should be understood that theother napkin assemblies 100 and 200 operate in the same manner. In particular, removing one napkin from a sheet results in the positioning a napkin from the other sheet outside the dispenser 400 for grasping by a user. Furthermore, thenapkin assemblies - Generally, the ratio of tab width to slit width (hereinafter may be referred to as “T/S”) is greater in napkin assemblies of the present invention than toilet tissue products. The T/S value of napkins is generally 0.04 while the T/S value of toilet tissue products is generally 0.02. This higher ratio creates a stronger connection between napkins, which in turn, prevents inadvertent separation of the napkins within the dispenser during dispensing.
- Table 1 depicts data from a napkin sheet of the present invention and an interfolded toilet tissue.
TABLE 1 Napkin Toilet Tissue Product Basis weight (gf) 29 14 Caliper 0.20 0.064 (millimeter) Machine Direction 5700 1200 Tensile (gf) - As depicted, the napkin tends to have a higher basis weight, caliper measurement, and machine direction tensile than the toilet tissue product. Thus, the napkin has different physical properties created for its intended use, which may present different dispensing properties than toilet tissue.
- Table 2 depicts data regarding perforated structure for the paper products of Table 1.
TABLE 2 Napkin Toilet Tissue Product Tab Width (millimeter) 0.48 0.48 Slit Width (millimeter) 12 28 Tab strength (gf) 92 20 - Although the tab widths for the napkin of the present invention and the toilet tissue product are the same, the slit width of the toilet tissue product is over twice that of the napkin, and likewise, the tab strength is less than a quarter of the napkin. Generally, greater slit widths in toilet tissue result in less tabs present in the sheet. Toilet tissue may be constructed with less tabs because of its smaller sheet size, which may require less pulling force during dispensing. Napkins tend to be bigger sheet products, and as a result, more force may be required to pull napkins from the dispenser. Thus, smaller slit widths, and thereby more tabs, may prevent unintentional napkin sheet separation during dispensing.
- While the present invention has been described in connection with certain preferred embodiments, it is to be understood that the subject matter encompassed by way of the present invention is not to be limited to those specific embodiments. On the contrary, it is intended for the subject matter of the invention to include all alternatives, modifications and equivalents as can be included within the spirit and scope of the following claims.
Claims (24)
1. A napkin assembly for a dispenser, the napkin assembly comprising:
a first napkin sheet further comprising a plurality of napkins wherein each napkin has a basis weight from about 20 gsm to about 40 gsm and is connected to an adjacent napkin in series by a plurality of tabs;
a second napkin sheet further comprising a plurality of napkins wherein each napkin has a basis weight from about 20 gsm to about 40 gsm and is connected to an adjacent napkin in series by a plurality of tabs, the second napkin sheet being positioned proximate to the first napkin sheet in an offset relation so that the first and second napkin sheets are formed into a nested configuration for dispensing.
2. The napkin assembly of wherein each napkin of the first and second napkin sheets further comprises a first member integrally formed with a second member forming a fold between the first and second members; and
claim 1
at least one napkin from the first napkin sheet terminates at about the fold of a respective napkin from the second napkin sheet.
3. The napkin assembly of wherein at least 500 napkins from the first napkin sheet terminate at about the fold of a respective napkin from the second napkin sheet.
claim 2
4. The napkin assembly of wherein the napkin basis weight is about 30 gsm.
claim 1
5. The napkin assembly of wherein the napkins comprise pulp fibers.
claim 1
6. The napkin assembly of wherein the machine direction tensile is greater than about 2000 gf.
claim 1
7. The napkin assembly of wherein the T/S ratio is greater than about 0.03.
claim 1
8. The napkin assembly of wherein the tab strength is greater than about 30 gf.
claim 1
9. A napkin assembly for a dispenser, the napkin assembly comprising:
a first napkin sheet further comprising a plurality of napkins wherein each napkin is connected to an adjacent napkin in series by a plurality of tabs;
a second napkin sheet further comprising a plurality of napkins wherein each napkin is connected to an adjacent napkin in series by a plurality of tabs;
each napkin of the first and second napkin sheets further includes a first member, a second member, and a third member wherein the first member is formed integrally with the second member forming a first fold between the first and second members and the second member is formed integrally with the third member forming a second fold between the second and third members; and
at least one napkin from the first napkin sheet terminates at about the second fold of a respective napkin from the second napkin sheet when nestably configured for dispensing.
10. The napkin assembly of wherein at least 500 napkins from the first napkin sheet terminate at about the second fold of a respective napkin from the second napkin sheet.
claim 9
11. The napkin assembly of wherein the napkin basis weight is from about 20 gsm to about 40 gsm.
claim 9
12. The napkin assembly of wherein the napkin basis weight is about 30 gsm.
claim 11
13. The napkin assembly of wherein the napkins comprise pulp fibers.
claim 9
14. The napkin assembly of wherein the machine direction tensile is greater than about 2000 gf.
claim 9
15. The napkin assembly of wherein the T/S ratio is greater than about 0.03.
claim 9
16. The napkin assembly of wherein the tab strength is greater than about 30 gf.
claim 9
17. A napkin assembly for a dispenser, the napkin assembly comprising:
a first napkin sheet further comprising a plurality of napkins wherein each napkin is connected to an adjacent napkin in series by a plurality of tabs;
a second napkin sheet further comprising a plurality of napkins wherein each napkin is connected to an adjacent napkin in series by a plurality of tabs;
each napkin of the first and second napkin sheets further includes a first member, a second member, a third member, and a fourth member wherein the first member is formed integrally with the second member forming a first fold between the first and second members, the second member is formed integrally with the third member forming a second fold between the second and third members, and the third member is formed integrally with the fourth member forming a third fold between the third and fourth members;
the second and third members have a length about twice that of the first and fourth members; and
at least one napkin from the first napkin sheet terminates at about the middle of a third member of a respective napkin from the second napkin sheet when nestably configured for dispensing.
18. The napkin assembly of wherein at least 500 napkins from the first napkin sheet terminate at about the middle of a third member of a respective napkin from the second napkin sheet.
claim 17
19. The napkin assembly of wherein the napkin basis weight is from about 20 gsm to about 40 gsm.
claim 17
20. The napkin assembly of wherein the napkin basis weight is about 30 gsm.
claim 19
21. The napkin assembly of wherein the napkins comprise pulp fibers.
claim 17
22. The napkin assembly of wherein the machine direction tensile is greater than about 2000 g f.
claim 17
23. The napkin assembly of wherein the T/S ratio is greater than about 0.03.
claim 17
24. The napkin assembly of wherein the tab strength is greater than about 30 gf.
claim 17
Priority Applications (1)
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100055391A1 (en) * | 2008-08-28 | 2010-03-04 | Georgia-Pacific Consumer Products Lp | Folded sheet material and array of folded sheet materials |
CN103648938A (en) * | 2011-07-13 | 2014-03-19 | Sca卫生用品公司 | Stack of interfolded hygiene products |
WO2014065733A1 (en) * | 2012-10-26 | 2014-05-01 | Sca Hygiene Products Ab | Dispenser |
WO2014065729A1 (en) * | 2012-10-26 | 2014-05-01 | Sca Hygiene Products Ab | Separation unit and a dispenser comprising a separation unit |
WO2014065731A1 (en) * | 2012-10-26 | 2014-05-01 | Sca Hygiene Products Ab | Separation unit and a dispenser comprising a separation unit |
CN105163637A (en) * | 2013-04-22 | 2015-12-16 | Sca卫生用品公司 | Dispenser and method of dispensing |
US20170135533A1 (en) * | 2014-06-19 | 2017-05-18 | Sca Hygiene Products Ab | Stack of z-folded web with connector to another stack |
RU2669038C2 (en) * | 2014-04-28 | 2018-10-05 | Ска Хайджин Продактс Аб | Takeaway device |
RU2688358C1 (en) * | 2018-08-28 | 2019-05-21 | Ска Хайджин Продактс Аб | Dispenser |
US10758096B2 (en) * | 2011-07-13 | 2020-09-01 | Essity Hygiene And Health Aktiebolag | Dispenser and stack of sheet products |
US11084681B2 (en) | 2011-08-31 | 2021-08-10 | Essity Hygiene And Health Aktiebolag | Stack of folded hygiene products and method and apparatus for producing same |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6910579B2 (en) | 2002-05-28 | 2005-06-28 | Georgia-Pacific Corporation | Refillable flexible sheet dispenser |
US20050058807A1 (en) | 2003-09-12 | 2005-03-17 | Hochtritt Robert C. | Stack of interfolded absorbent sheet products |
US7097896B2 (en) * | 2004-09-30 | 2006-08-29 | Kimberly-Clark Worldwide, Inc. | Interleaved towel fold configuration |
US8083097B2 (en) * | 2004-09-30 | 2011-12-27 | Kimberly-Clark Worldwide, Inc | Interleaved towel fold configuration |
US8757432B2 (en) * | 2004-11-12 | 2014-06-24 | Sca Tissue North America Llc | Top-dispensing absorbent sheet dispenser |
US20060157495A1 (en) * | 2004-12-23 | 2006-07-20 | Reddy Kiran K K | Easy open folded article |
US20070235467A1 (en) * | 2006-04-10 | 2007-10-11 | Potlatch Forest Products Corporation | Paper tissue dispenser |
US7717839B2 (en) * | 2008-04-04 | 2010-05-18 | C.G. Bretting Manufacturing Co., Inc. | Multi-path interfolding apparatus |
US8597761B2 (en) | 2010-10-29 | 2013-12-03 | Sca Hygiene Products Ab | Stack of interfolded absorbent sheet products |
CA2836995C (en) | 2011-07-13 | 2016-02-02 | Sca Hygiene Products Ab | Stack of interfolded first and second sheets |
US8586167B2 (en) | 2011-08-22 | 2013-11-19 | Bellemarque, Llc | Tri-fold napkin |
US8900685B2 (en) | 2011-08-31 | 2014-12-02 | Sca Hygiene Products Ab | Stack of interfolded absorbent sheet products, and method of forming the same |
US8609223B2 (en) | 2011-12-30 | 2013-12-17 | Sca Hygiene Products Ab | Interfolded napkins and method for interfolding napkins |
US8974887B2 (en) | 2012-07-26 | 2015-03-10 | Bellemarque, Llc | Low-fold napkin |
US9668621B2 (en) | 2012-12-19 | 2017-06-06 | Sca Hygiene Products Ab | Stack of folded web material for hygiene products |
US10463207B2 (en) * | 2016-05-20 | 2019-11-05 | Linda Jane Bates | One use portable toilet paper dispense system |
US10449746B2 (en) | 2016-06-27 | 2019-10-22 | C. G. Bretting Manufacturing Co., Inc. | Web processing system with multiple folding arrangements fed by a single web handling arrangement |
Family Cites Families (57)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1430709A (en) * | 1922-10-03 | Paper package and process of forming same | ||
CA553900A (en) | 1958-03-04 | V. Rutkus Harold | Method and apparatus for separating tissue packs | |
US1381307A (en) * | 1921-06-14 | Intebfoiided paper package and pbocess of manufacturing same | ||
US1302240A (en) | 1915-10-08 | 1919-04-29 | Hawley Pulp And Paper Company | Paper-interfolding machine. |
US1302241A (en) | 1915-10-08 | 1919-04-29 | Hawley Pulp And Paper Company | Method of interfolding paper. |
US1253644A (en) | 1917-07-09 | 1918-01-15 | Louis A Straubel | Machine for interfolding and counting paper toweling and the like. |
US1484069A (en) | 1920-10-11 | 1924-02-19 | David W Hudson | Interfolding machine |
US1457978A (en) | 1921-11-03 | 1923-06-05 | William T Lazar | Paper interfolding machine |
US1516779A (en) | 1922-09-26 | 1924-11-25 | Joseph L Hoslett | Paper-interfolding machine |
US1546807A (en) * | 1923-06-21 | 1925-07-21 | Straubel Machine Company | Toilet-paper cabinet |
US1525040A (en) | 1923-09-04 | 1925-02-03 | Earl D May | Device for dispensing paper napkins |
DE444751C (en) | 1926-09-25 | 1927-05-25 | Julius Baruch | Toilet paper |
US2092952A (en) | 1934-11-26 | 1937-09-14 | Samuel J Campbell | Paper interfolding machine |
US2092167A (en) * | 1935-04-04 | 1937-09-07 | Jr Richard C Kettles | Dispensing device |
US2050030A (en) * | 1935-12-04 | 1936-08-04 | Us Paper Mills Inc | Paper towel |
US2468254A (en) | 1945-02-16 | 1949-04-26 | Int Cellucotton Products | Interfolding machine |
US2626145A (en) | 1947-04-05 | 1953-01-20 | Int Cellucotton Products | Tissure interfolding method and apparatus |
US2675747A (en) | 1950-01-13 | 1954-04-20 | Apparatus for segregating stacks | |
US3163413A (en) | 1962-03-28 | 1964-12-29 | Kimberly Clark Co | Cam controlled folding means for papermaking machine |
US3195882A (en) | 1963-08-27 | 1965-07-20 | Paper Converting Machine Co | Rotary zigzag folding apparatus |
US3338575A (en) | 1965-03-10 | 1967-08-29 | Paper Converting Machine Co | Web lapping apparatus |
US3490762A (en) | 1967-09-07 | 1970-01-20 | Paper Converting Machine Co | Web-lapping machine |
CH492038A (en) | 1968-04-29 | 1970-06-15 | Vyzk Ustav Bavlnarsky | Device for spindleless fine spinning of textile fibers by means of a vacuum spinning chamber |
US3849241A (en) | 1968-12-23 | 1974-11-19 | Exxon Research Engineering Co | Non-woven mats by melt blowing |
US3572681A (en) | 1969-06-03 | 1971-03-30 | Paper Converting Machine Co | Apparatus for interfolding webs |
CA890635A (en) | 1970-07-20 | 1972-01-11 | Ducasse Viateur | Eliminateur de fumee industrielle |
US3709077A (en) | 1971-03-01 | 1973-01-09 | Bretting C Mfg Co Inc | Cut-off device |
US4070014A (en) | 1975-07-28 | 1978-01-24 | Kawanoe Zoki Kabushiki Kaisha | Web folding apparatus |
US4163548A (en) | 1978-01-23 | 1979-08-07 | Paper Converting Machine Company | Method of lapping webs and product |
US4190241A (en) | 1978-05-01 | 1980-02-26 | Kimberly-Clark Corporation | Apparatus for converting paper rolls into stacks of individual folded paper sheets |
US4204699A (en) | 1978-11-17 | 1980-05-27 | Erskine Manufacturing Company, Inc. | Hitch for draft implement |
US4254947A (en) | 1979-05-30 | 1981-03-10 | C. G. Bretting Mfg. Co. Inc. | Sheet overlap device |
US4270744A (en) | 1979-06-15 | 1981-06-02 | C. G. Bretting Mfg. Co. Inc. | Tuckers on mechanical folding rolls |
US4279411A (en) | 1979-06-18 | 1981-07-21 | Paper Converting Machine Company | Method of lapping webs |
US4329001A (en) | 1980-02-05 | 1982-05-11 | Georgia-Pacific Corporation | Dispenser for folded sheets of flexible material |
US4494741A (en) | 1981-03-20 | 1985-01-22 | John M. Rudolf | Tissue cutting and interfolding apparatus for Z webs |
US4475730A (en) | 1983-03-23 | 1984-10-09 | C.G. Bretting Mfg. Co., Inc. | Apparatus for folding and stacking paper products |
US4681240A (en) | 1985-12-12 | 1987-07-21 | Wyant James A | Towelling package |
US4691908A (en) | 1986-01-06 | 1987-09-08 | Paper Converting Machine Company | Apparatus for interfolding |
US4700939A (en) | 1986-08-12 | 1987-10-20 | Kimberly-Clark Corporation | Apparatus and process for separating and removing bundles of sheets |
US4717135A (en) | 1986-08-12 | 1988-01-05 | Kimberly-Clark Corporation | Apparatus and process for automatically interfolding sheets and separating them into bundles |
US4811871A (en) | 1986-12-17 | 1989-03-14 | The English Glass Company Limited | Liquid dosing device |
US4725469A (en) | 1987-02-17 | 1988-02-16 | Kimberly-Clark Corporation | Interfolded multi-panel clip |
US4770402A (en) | 1987-04-17 | 1988-09-13 | C. G. Bretting Manufacturing Company | Clip separator for interfolded sheets |
US4824426A (en) | 1987-05-11 | 1989-04-25 | Paper Converting Machine Company | Method and apparatus for interfolding webs |
US4917665A (en) | 1987-06-16 | 1990-04-17 | C. G. Bretting Manufacturing Co. Inc. | Bedroll interfolding machinery improvement |
US4778441A (en) | 1987-06-16 | 1988-10-18 | C.G. Bretting Manufacturing Co., Inc. | Interfolding machinery improvement |
US4953747A (en) | 1988-04-07 | 1990-09-04 | Wenkman Gregory J | Table model napkin dispenser |
DE3832595A1 (en) | 1988-09-26 | 1990-03-29 | Winkler Duennebier Kg Masch | METHOD AND DEVICE FOR PRODUCING ZIG-ZAG-FOLDED CLOTHES |
US5011017A (en) | 1989-05-22 | 1991-04-30 | Wisconsin Tissue Mills Inc. | Folded paper napkin with utensil pocket |
DE3923436A1 (en) | 1989-07-15 | 1991-01-24 | Winkler Duennebier Kg Masch | METHOD AND DEVICE FOR PRODUCING PAPER PACKS |
DE3927422C2 (en) | 1989-08-19 | 1998-07-09 | Winkler Duennebier Kg Masch | Method and device for the production of numbered partial stacks from overlapping folded sheets |
US5118554A (en) | 1990-10-16 | 1992-06-02 | Scott Paper Company | Interleaved towel fold configuration |
SE468439B (en) | 1991-01-21 | 1993-01-18 | Wanja Bellander | PAPER SERVER DETERMINED TO HAPPEN ATTENTION TO A CLOTHING CLOTH |
US5090592A (en) | 1991-03-12 | 1992-02-25 | James River Ii, Inc. | Nose piece for folded sheet product dispenser |
US5690250A (en) | 1996-03-05 | 1997-11-25 | James River Corporation Of Virginia | Folded paper napkin for dispensing from a paper napkin dispenser |
US5716691A (en) | 1996-11-04 | 1998-02-10 | Kimberly-Clark Corporation | Dispensable folded web product |
-
1998
- 1998-06-29 US US09/106,978 patent/US6213346B1/en not_active Expired - Lifetime
-
1999
- 1999-06-25 ES ES99933578T patent/ES2251207T3/en not_active Expired - Lifetime
- 1999-06-25 PE PE1999000585A patent/PE20000668A1/en not_active Application Discontinuation
- 1999-06-25 CO CO99039989A patent/CO4980921A1/en unknown
- 1999-06-25 WO PCT/US1999/014405 patent/WO2000000072A1/en not_active Application Discontinuation
- 1999-06-25 DE DE69929196T patent/DE69929196T2/en not_active Revoked
- 1999-06-25 AU AU49610/99A patent/AU746526B2/en not_active Ceased
- 1999-06-25 JP JP2000556661A patent/JP2002519085A/en not_active Abandoned
- 1999-06-25 EP EP99933578A patent/EP1091678B1/en not_active Revoked
- 1999-06-25 EP EP05016998A patent/EP1629756A2/en not_active Withdrawn
- 1999-06-25 CA CA002335122A patent/CA2335122A1/en not_active Abandoned
- 1999-06-28 AR ARP990103116A patent/AR019172A1/en not_active Application Discontinuation
- 1999-06-28 PA PA19998476901A patent/PA8476901A1/en unknown
- 1999-06-28 EG EG78699A patent/EG21896A/en active
- 1999-06-29 TW TW088110694A patent/TW411267B/en not_active IP Right Cessation
- 1999-06-29 CR CR6054A patent/CR6054A/en not_active Application Discontinuation
-
2001
- 2001-02-02 US US09/776,395 patent/US20010020626A1/en not_active Abandoned
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US20100055391A1 (en) * | 2008-08-28 | 2010-03-04 | Georgia-Pacific Consumer Products Lp | Folded sheet material and array of folded sheet materials |
US8133569B2 (en) | 2008-08-28 | 2012-03-13 | Georgia-Pacific Consumer Products Lp | Folded sheet material and array of folded sheet materials |
CN103648938A (en) * | 2011-07-13 | 2014-03-19 | Sca卫生用品公司 | Stack of interfolded hygiene products |
US11812899B2 (en) | 2011-07-13 | 2023-11-14 | Essity Hygiene And Health Aktiebolag | Dispenser and stack of sheet products |
US10758096B2 (en) * | 2011-07-13 | 2020-09-01 | Essity Hygiene And Health Aktiebolag | Dispenser and stack of sheet products |
US11084681B2 (en) | 2011-08-31 | 2021-08-10 | Essity Hygiene And Health Aktiebolag | Stack of folded hygiene products and method and apparatus for producing same |
US10058221B2 (en) | 2012-10-26 | 2018-08-28 | Sca Hygiene Products Ab | Dispenser |
WO2014065731A1 (en) * | 2012-10-26 | 2014-05-01 | Sca Hygiene Products Ab | Separation unit and a dispenser comprising a separation unit |
US11871877B2 (en) | 2012-10-26 | 2024-01-16 | Essity Hygiene And Health Aktiebolag | Separation unit and a dispenser comprising a separation unit |
RU2616564C2 (en) * | 2012-10-26 | 2017-04-17 | Ска Хайджин Продактс Аб | Separation unit, as well as dispensing device containing separation unit |
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US9999325B2 (en) * | 2012-10-26 | 2018-06-19 | Sca Hygiene Products Ab | Separation unit and a dispenser comprising a separation unit |
US20150282679A1 (en) * | 2012-10-26 | 2015-10-08 | Sca Hygiene Products Ab | Separation unit and a dispenser comprising a separation unit |
US20180242797A1 (en) * | 2012-10-26 | 2018-08-30 | Sca Hygiene Products Ab | Separation unit and a dispenser comprising a separation unit |
US11166604B2 (en) | 2012-10-26 | 2021-11-09 | Essity Hygiene And Health Aktiebolag | Separation unit and a dispenser comprising a separation unit |
WO2014065729A1 (en) * | 2012-10-26 | 2014-05-01 | Sca Hygiene Products Ab | Separation unit and a dispenser comprising a separation unit |
US10390664B2 (en) | 2012-10-26 | 2019-08-27 | Essity Hygiene And Health Aktiebolag | Separation unit and a dispenser comprising a separation unit |
US10842329B2 (en) | 2012-10-26 | 2020-11-24 | Essity Hygiene And Health Aktiebolag | Separation unit and a dispenser comprising a separation unit |
US10568471B2 (en) * | 2012-10-26 | 2020-02-25 | Essity Hygiene And Health Aktiebolag | Separation unit and a dispenser comprising a separation unit |
CN105163637A (en) * | 2013-04-22 | 2015-12-16 | Sca卫生用品公司 | Dispenser and method of dispensing |
US20160073837A1 (en) * | 2013-04-22 | 2016-03-17 | Sca Hygiene Products Ab | Dispenser and method of dispensing |
RU2669038C2 (en) * | 2014-04-28 | 2018-10-05 | Ска Хайджин Продактс Аб | Takeaway device |
US11206956B2 (en) | 2014-04-28 | 2021-12-28 | Essity Hygiene And Health Aktiebolag | Dispenser |
US10413136B2 (en) * | 2014-06-19 | 2019-09-17 | Essity Hygiene And Health Aktiebolag | Stack of Z-folded web with connector to another stack |
US20170135533A1 (en) * | 2014-06-19 | 2017-05-18 | Sca Hygiene Products Ab | Stack of z-folded web with connector to another stack |
RU2688358C1 (en) * | 2018-08-28 | 2019-05-21 | Ска Хайджин Продактс Аб | Dispenser |
Also Published As
Publication number | Publication date |
---|---|
AR019172A1 (en) | 2001-12-26 |
DE69929196T2 (en) | 2006-07-20 |
EP1091678A1 (en) | 2001-04-18 |
CO4980921A1 (en) | 2000-11-27 |
AU746526B2 (en) | 2002-05-02 |
JP2002519085A (en) | 2002-07-02 |
PE20000668A1 (en) | 2000-08-24 |
TW411267B (en) | 2000-11-11 |
CR6054A (en) | 2001-07-30 |
US6213346B1 (en) | 2001-04-10 |
WO2000000072A1 (en) | 2000-01-06 |
EP1629756A2 (en) | 2006-03-01 |
EG21896A (en) | 2002-04-30 |
DE69929196D1 (en) | 2006-02-02 |
ES2251207T3 (en) | 2006-04-16 |
EP1091678B1 (en) | 2005-12-28 |
AU4961099A (en) | 2000-01-17 |
CA2335122A1 (en) | 2000-01-06 |
PA8476901A1 (en) | 2000-05-24 |
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Legal Events
Date | Code | Title | Description |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |