US3461871A - Disposable diaper - Google Patents

Disposable diaper Download PDF

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Publication number
US3461871A
US3461871A US567711A US3461871DA US3461871A US 3461871 A US3461871 A US 3461871A US 567711 A US567711 A US 567711A US 3461871D A US3461871D A US 3461871DA US 3461871 A US3461871 A US 3461871A
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Prior art keywords
diaper
panels
pad
width
filler
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Expired - Lifetime
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US567711A
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Philip H Foote
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Procter and Gamble Co
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Blessings Inc
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Assigned to BLESSINGS PRODUCTS, INC. reassignment BLESSINGS PRODUCTS, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE JULY 26, 1972. DELAWARE Assignors: BLESSINGS, INCORPORATED
Assigned to PROCTER & GAMBLE COMPANY, THE reassignment PROCTER & GAMBLE COMPANY, THE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BLESSINGS CORPORATION
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Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/53409—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad having a folded core
    • A61F13/53418—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad having a folded core having a C-folded cross-section

Definitions

  • This invention relates to disposable diapers.
  • One feature of the invention relates to a construction which makes the diaper easier to put on and more comfortable to wear.
  • Another object is to provide an improved construction for disposable diapers which is more economical to manufacture and which can be sold at a price which makes the use of disposable'diapers practical.
  • FIGURE 1 is a vew of a diaper made in accordance with this invention, one side being shown in a folded position;
  • FIGURE 2 is a greatly enlarged sectional view, taken on the line 2-2 of FIGURE 1, but having the different layers of material exaggerated in thickness and separated from one another for clearer illustration;
  • FIGURE 3 is a fragmentary view showing one side of the diaper shown in FIGURES l and 2, and with the thickness of the sections still exaggerated, but with the different layers of material in contact with one another as in the actual construction of the diaper; and
  • FIGURES ⁇ 4 and 5 show one way in which the diaper of FIGURE l can be folded for stacking prior to use.
  • FIGURE 1 shows a diaper 10 having a flattened tubular outside cover 12 with a longitudinally extending lap seam 14.
  • the outside cover 12 is preferably made of soft tissue paper, or other nonwoven fabric which is absorbent but of relatively high wet strength so that the diaper does not pull apart easily when wet. This may be a long tibreboard and is one which is soft enough to be comfortable in contact with a babys skin.
  • the outside cover 12 contains a filler 18 which preferably consists of three layers of material.
  • the upper layer is a highly porous and thin paper 20. This paper may be slightly creped, if desired.
  • the filler contains an "United States Patent O ice intermediate layer 22 consisting of cellulose pad which is approximately between a sixteenth and one-eighth inch in thickness and this cellulose pad provides the principal moisture-absorbing capacity of the diaper. Under the pad 22there is another layer of paper 20 which is preferably identical with the top layer 20.
  • All of the edges of the paper layers 20 and the pad 22 are raw edges such as are left by cutting successive fillers 18 from ⁇ a web or large sheet in which the layer of cellulose is,l covered top and bottom by the sheets of paper in the relation in which they are used in the diaper. 1
  • This construction of the filler facilitates manufacture and keeps the ⁇ cost of the filler to a minimum.
  • Another feature which ⁇ saves cost is that the filler 18 is made thinner and less absorbent than is actually necessary at the center region of the diaper and the necessary additional absorption capacity is provided by doubling the thickness of the pad in the center region by means of the construction shown in FIGURE 1.
  • FIGURE 1 shows they panel 32, on the left-hand side of the diaper,.folded inward, and shows the panel 32 on the right-hand side of the diaper in full lines in the position it occupies before being folded, and in dotted lines in its folded position.
  • each of the panels 32 By having the width of each of the panels 32 one quarter of the width of the diaper, these panels cover the entire area'of the center region of the diaper between the leg openings which are left in the diaper by the folding inward of the panels 32.
  • the lap seam 14 is located ofI center but not far enough off to be within the cuts 26 and one of the panels 32 folds over the seam 14.
  • This is an advantageous construction in that it makes it unnecessary to have the lap seam a continuous connection and it is suicient that the lapping edges of the seam 14 be secured together by adhesive at spaced regions close enough together so that there are a plurality of such connections within the length of each diaper.
  • Continuous connections can, of course, be used if desired, and the advantages of discontinuous connections depend on the process by which the diaper is constructed.
  • the illustrated construction makes the use of discontinuous seams practical.
  • the filler 18 does not extend across the full width of the flattened tubular outside cover 12. This reduces the amount of filler material necessary while still leaving the cover 12 with ample width for convenient pinning;
  • the panels 32 can, therefore, be made to overlap slightly, as extra protection against leakage without forming a ridge down the middle of the diaper.
  • the filler 18 is also somewhat shorter than the outside cover. This also saves on the amount of filler required for each diaper but the advantage of this feature depends to some extent upon the process by which the diapers are constructed.
  • the length of the diaper is approximately one and one-half times the width and the distance betwen the cuts 26, along the edges of the diaper, is slightly more than half of the length of the side edges, and is shown symmetrically located between the ends of the diaper.
  • the arcs of the cuts 26 may approximate 90 but are preferably somewhat i less than 90 since this facilitates the cutting.
  • the panels 32 are shown symmetrically located with respect to the ends of the diaper but need not be so located.
  • the combined thickness of the various layers is small enough to permit convenient folding along a middle line 38, as shown in FIGURE 4.
  • the diaper can then be folded along a middle longitudinal line 40 into the condition shown in FIGURE 5. This reduces the overall size of the diaper to one quarter of its fully extended area and provides ⁇ a handy size for stacking and for removing one diaper at a time from a stack prior to use.
  • the diapers are unfolded easily since the tissue paper does not stick to itself and the construction, although soft and flexible, is not limp like a cloth diaper which is difficult to spread with one hand.
  • each of the panels 32 As each of the panels 32 is folded into its center position along its hinge line 30, it can be pressed firmly on the hinge line and this creases the paper so that the panels 32 remain flat against the part of the diaper over which they are folded.
  • a disposable diaper including in combination an outer cover comprising a soft paper attened tube, a filler including an absorbent pad enclosed within the paper tube and originally extending across most of the width of the diaper, each side edge of the diaper having two cuts extending into both the outer cover and the absorbent filler at locations spaced from one another and spaced from the ends of the diaper to form a panel at each side of the diaper that is folded inward toward the center of the diaper and at least part way ove1 the mid-section of the diaper, each of the cuts extending inward for a distance of approximately 1A of the width of the diaper whereby the folded panels cooperate with the remainder of the diaper to form a mid-section in which the absorbent filler is of double thickness.
  • the disposable diaper described in claim 1 characterized by the absorbent pad being an unwoven cellulose pad of substantially the same width as the flattened tube.
  • the disposable diaper described in claim 2 characterized by the pad including also absorbent sheets of thin paper over land under lthe cellulose pad.
  • the disposable diaper described in claim 1 characterized by the pad being slightly narrower 4than the width of the tubular cover and being held by the folded panels against shifting in 'any'direction with respect to said cover.
  • the disposable diaper described in claim 1 characterized by the diaper having a length-to-width ratio of approximately 3:2,4 the cuts in the sides of the diaper being spaced from the ends by a distance equal to at least approximately 1A of the width, and the cuts on each side being spaced from one another at the edges of the diaper by a distance equal to approximately 1/2 the width of the diaper, said cuts extending inwardly along the curved lines that approach one another.
  • the disposable diaper described in claim 1 characterized by the outer cover having a lap seam with its edges secured Itogether by adhesive along at least a part of the length of the seam, and said seam being offset from the longitudinal center line of the diaper.

Description

Aug. 19, 1969 P. H. FOOTE 3,461,871y
DIsPosABLE ,DIALER Filed July 25,1966
INVENTOR mmm-` Mm" M wm.
ATTQRNEvs.
Int. Cl. A61f 5/44, 5/48 US. Cl. 12S-284 8 Claims ABSTRACT or THE DISCLOSUREV A disposable diaper having a flattened tube as 'an outer cover and an absorbent pad originally extending across most of the width of the diaper. Cuts extending inward from both sides through the cover and the pad form panels which are folded over to lmake the absorbent liller of double thickness at the mid-section of the diaper.
BRIEF DESCRIPTION `OF THE INVENTION This invention relates to disposable diapers.
It is an object of the invention to provide an improved disposable diaper which is `suitable for use as a liner, but which is strong enough to be usedalone as a diaper held in place by pins. One feature of the invention relates to a construction which makes the diaper easier to put on and more comfortable to wear.
Y Another object is to provide an improved construction for disposable diapers which is more economical to manufacture and which can be sold at a price which makes the use of disposable'diapers practical.
Features of the invention relate to the correlation of parts of which the diaper is constructedand to a relation which makes it possible to fold portions of the diaper into position to obtain greater thickness and greater moisture-absorption capacity at the middle of the diaperwhere it is mosty needed. y
Other objects, features and advantages of the invention will appear or be pointed out as the description proceeds.
BRIEF DESCRIPTION OF vTHE Y DRAWING In thedrawing, forming a part hereof, n which like reference characters indicate corresponding parts in all the views:
FIGURE 1 is a vew of a diaper made in accordance with this invention, one side being shown in a folded position;
FIGURE 2 is a greatly enlarged sectional view, taken on the line 2-2 of FIGURE 1, but having the different layers of material exaggerated in thickness and separated from one another for clearer illustration;
FIGURE 3 is a fragmentary view showing one side of the diaper shown in FIGURES l and 2, and with the thickness of the sections still exaggerated, but with the different layers of material in contact with one another as in the actual construction of the diaper; and
FIGURES `4 and 5 show one way in which the diaper of FIGURE l can be folded for stacking prior to use.
DESCRIPTION OF PREFERRED EMBODIMENT FIGURE 1 shows a diaper 10 having a flattened tubular outside cover 12 with a longitudinally extending lap seam 14. The outside cover 12 is preferably made of soft tissue paper, or other nonwoven fabric which is absorbent but of relatively high wet strength so that the diaper does not pull apart easily when wet. This may be a long tibreboard and is one which is soft enough to be comfortable in contact with a babys skin.
The outside cover 12 contains a filler 18 which preferably consists of three layers of material. The upper layer is a highly porous and thin paper 20. This paper may be slightly creped, if desired. The filler contains an "United States Patent O ice intermediate layer 22 consisting of cellulose pad which is approximately between a sixteenth and one-eighth inch in thickness and this cellulose pad provides the principal moisture-absorbing capacity of the diaper. Under the pad 22there is another layer of paper 20 which is preferably identical with the top layer 20.
All of the edges of the paper layers 20 and the pad 22 are raw edges such as are left by cutting successive fillers 18 from`a web or large sheet in which the layer of cellulose is,l covered top and bottom by the sheets of paper in the relation in which they are used in the diaper. 1
This construction of the filler facilitates manufacture and keeps the `cost of the filler to a minimum. Another feature which `saves cost is that the filler 18 is made thinner and less absorbent than is actually necessary at the center region of the diaper and the necessary additional absorption capacity is provided by doubling the thickness of the pad in the center region by means of the construction shown in FIGURE 1.
There are curved cuts 26 extending inward from opposite sides ofthe diaper for a distance of approximately one quarter of the width of the diaper. These cuts, on each side of the diaper, terminate at location 28 which are spaced from one another lengthwise of the diaper so as to leave a hinge line 30 along which the part of the diaper between the cuts 26 can be folded over into the position shown in dotted lines on the right half of the diaper of FIGURE 1. This portion of the diaper that folds inward along the hinge line 30 forms a panel 32. FIGURE 1 shows they panel 32, on the left-hand side of the diaper,.folded inward, and shows the panel 32 on the right-hand side of the diaper in full lines in the position it occupies before being folded, and in dotted lines in its folded position.
By having the width of each of the panels 32 one quarter of the width of the diaper, these panels cover the entire area'of the center region of the diaper between the leg openings which are left in the diaper by the folding inward of the panels 32.
In the construction illustrated, the lap seam 14 is located ofI center but not far enough off to be within the cuts 26 and one of the panels 32 folds over the seam 14. This is an advantageous construction in that it makes it unnecessary to have the lap seam a continuous connection and it is suicient that the lapping edges of the seam 14 be secured together by adhesive at spaced regions close enough together so that there are a plurality of such connections within the length of each diaper. Continuous connections can, of course, be used if desired, and the advantages of discontinuous connections depend on the process by which the diaper is constructed. However, the illustrated construction makes the use of discontinuous seams practical.
The filler 18 does not extend across the full width of the flattened tubular outside cover 12. This reduces the amount of filler material necessary while still leaving the cover 12 with ample width for convenient pinning; and
it also leaves the panels 32 with their free end portions` extending slightly beyond the filler material. The panels 32 can, therefore, be made to overlap slightly, as extra protection against leakage without forming a ridge down the middle of the diaper.
In the construction illustrated, the filler 18 is also somewhat shorter than the outside cover. This also saves on the amount of filler required for each diaper but the advantage of this feature depends to some extent upon the process by which the diapers are constructed. The length of the diaper is approximately one and one-half times the width and the distance betwen the cuts 26, along the edges of the diaper, is slightly more than half of the length of the side edges, and is shown symmetrically located between the ends of the diaper. The arcs of the cuts 26 may approximate 90 but are preferably somewhat i less than 90 since this facilitates the cutting. The panels 32 are shown symmetrically located with respect to the ends of the diaper but need not be so located. These correlations and features of they preferred embodiment can be used in different combinations, if desired.
When the panels 32 are in their original positions, flush with the` remainder of the diaper, the combined thickness of the various layers is small enough to permit convenient folding along a middle line 38, as shown in FIGURE 4. The diaper can then be folded along a middle longitudinal line 40 into the condition shown in FIGURE 5. This reduces the overall size of the diaper to one quarter of its fully extended area and provides `a handy size for stacking and for removing one diaper at a time from a stack prior to use. The diapers are unfolded easily since the tissue paper does not stick to itself and the construction, although soft and flexible, is not limp like a cloth diaper which is difficult to spread with one hand.
As each of the panels 32 is folded into its center position along its hinge line 30, it can be pressed firmly on the hinge line and this creases the paper so that the panels 32 remain flat against the part of the diaper over which they are folded.
The preferred embodiment of the invention has been illustrated and described, and the invention is defined in the appended claims.
What is claimed is:
1. A disposable diaper including in combination an outer cover comprising a soft paper attened tube, a filler including an absorbent pad enclosed within the paper tube and originally extending across most of the width of the diaper, each side edge of the diaper having two cuts extending into both the outer cover and the absorbent filler at locations spaced from one another and spaced from the ends of the diaper to form a panel at each side of the diaper that is folded inward toward the center of the diaper and at least part way ove1 the mid-section of the diaper, each of the cuts extending inward for a distance of approximately 1A of the width of the diaper whereby the folded panels cooperate with the remainder of the diaper to form a mid-section in which the absorbent filler is of double thickness.
2. The disposable diaper described in claim 1 characterized by the absorbent pad being an unwoven cellulose pad of substantially the same width as the flattened tube.
3. The disposable diaper described in claim 2 characterized by the pad including also absorbent sheets of thin paper over land under lthe cellulose pad.
4. Thedisposable diaper described in claim 3 characterized by the pad extending for substantially the full length of the outer cover as well as across substantially the full width thereof.
5. The disposable diaper described in claim 1 characterized by the pad being slightly narrower 4than the width of the tubular cover and being held by the folded panels against shifting in 'any'direction with respect to said cover.
6. The disposable diaper described in claimy 1 characterized by the pad terminating slightly short of the folds at opposite sides of the flattened tubular cover, and the portions of the pad in the panels terminating slightly short of the free edges of the panels.
7. The disposable diaper described in claim 1 characterized by the diaper having a length-to-width ratio of approximately 3:2,4 the cuts in the sides of the diaper being spaced from the ends by a distance equal to at least approximately 1A of the width, and the cuts on each side being spaced from one another at the edges of the diaper by a distance equal to approximately 1/2 the width of the diaper, said cuts extending inwardly along the curved lines that approach one another. l
8. The disposable diaper described in claim 1 characterized by the outer cover having a lap seam with its edges secured Itogether by adhesive along at least a part of the length of the seam, and said seam being offset from the longitudinal center line of the diaper.
References Cited UNITED STATES PATENTS 2,122,417 7/1938 Fridolph 128-284 2,549,982 4/1951 MCKhann et al 12S-287 2,770,237 v 11/1956 Starr 12S-,287 2,890,700 `6/14959 Lonberg-Holm 12S-284 2,967,526 1/1961 OlSOn 128-287 3,306,293 2/1967 Marder et al 12S-284 CHARLES F. ROSENBAUM, Primary Examiner
US567711A 1966-07-25 1966-07-25 Disposable diaper Expired - Lifetime US3461871A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794033A (en) * 1972-03-01 1974-02-26 Weyerhaeuser Co Disposable diaper with center constriction
US3860004A (en) * 1972-10-16 1975-01-14 Paper Converting Machine Co Disposable diaper
US3920017A (en) * 1974-09-27 1975-11-18 Colgate Palmolive Co Crotch-shaped diaper and method
US4057061A (en) * 1974-12-18 1977-11-08 Kabushiki Kaisha Angel Sanitary napkin
US4216773A (en) * 1979-03-30 1980-08-12 Weyerhaeuser Company Disposable diaper with center folded edges
DE3141963A1 (en) * 1980-10-22 1982-05-27 Uni-Charm Corp., Kawanoe, Ehime DISPOSAL DIAPER
WO1996009803A1 (en) * 1994-09-26 1996-04-04 Drypers Corporation Disposable garment with noodle cuff and method for manufacturing same
WO1996019166A1 (en) * 1994-12-21 1996-06-27 The Procter & Gamble Company An absorbent article having integral barrier cuffs and process for making the same
US20050113791A1 (en) * 2003-11-24 2005-05-26 Kimberly-Clark Worldwide, Inc. Zoned absorbent structures and process for producing same
US8147472B2 (en) 2003-11-24 2012-04-03 Kimberly-Clark Worldwide, Inc. Folded absorbent product
US20170296399A1 (en) * 2016-04-18 2017-10-19 The Procter & Gamble Company Elastomeric laminate with activation thickness

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2122417A (en) * 1935-05-08 1938-07-05 Fridolph Annette Infant's garment
US2549982A (en) * 1948-11-17 1951-04-24 Diapette Inc Diaper pants and pad for same
US2770237A (en) * 1953-08-14 1956-11-13 Starr Harriet Baby diaper
US2890700A (en) * 1954-02-18 1959-06-16 Ethel C Lonberg-Holm Disposable diaper
US2967526A (en) * 1957-09-23 1961-01-10 Agnes J Olson Diaper-type garment
US3306293A (en) * 1963-07-31 1967-02-28 Colgate Palmolive Co Disposable diaper

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2122417A (en) * 1935-05-08 1938-07-05 Fridolph Annette Infant's garment
US2549982A (en) * 1948-11-17 1951-04-24 Diapette Inc Diaper pants and pad for same
US2770237A (en) * 1953-08-14 1956-11-13 Starr Harriet Baby diaper
US2890700A (en) * 1954-02-18 1959-06-16 Ethel C Lonberg-Holm Disposable diaper
US2967526A (en) * 1957-09-23 1961-01-10 Agnes J Olson Diaper-type garment
US3306293A (en) * 1963-07-31 1967-02-28 Colgate Palmolive Co Disposable diaper

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794033A (en) * 1972-03-01 1974-02-26 Weyerhaeuser Co Disposable diaper with center constriction
US3860004A (en) * 1972-10-16 1975-01-14 Paper Converting Machine Co Disposable diaper
US3920017A (en) * 1974-09-27 1975-11-18 Colgate Palmolive Co Crotch-shaped diaper and method
US4057061A (en) * 1974-12-18 1977-11-08 Kabushiki Kaisha Angel Sanitary napkin
US4216773A (en) * 1979-03-30 1980-08-12 Weyerhaeuser Company Disposable diaper with center folded edges
DE3141963A1 (en) * 1980-10-22 1982-05-27 Uni-Charm Corp., Kawanoe, Ehime DISPOSAL DIAPER
WO1996009803A1 (en) * 1994-09-26 1996-04-04 Drypers Corporation Disposable garment with noodle cuff and method for manufacturing same
US5536350A (en) * 1994-09-26 1996-07-16 Drypers Corporation Disposable garment with noodle cuff and method for manufacturing same
WO1996019166A1 (en) * 1994-12-21 1996-06-27 The Procter & Gamble Company An absorbent article having integral barrier cuffs and process for making the same
US20050113791A1 (en) * 2003-11-24 2005-05-26 Kimberly-Clark Worldwide, Inc. Zoned absorbent structures and process for producing same
US8147472B2 (en) 2003-11-24 2012-04-03 Kimberly-Clark Worldwide, Inc. Folded absorbent product
US20170296399A1 (en) * 2016-04-18 2017-10-19 The Procter & Gamble Company Elastomeric laminate with activation thickness
US11311427B2 (en) * 2016-04-18 2022-04-26 The Procter & Gamble Company Elastomeric laminate with activation thickness

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