CA2631235A1 - Method of producing a stretch laminate - Google Patents

Method of producing a stretch laminate Download PDF

Info

Publication number
CA2631235A1
CA2631235A1 CA002631235A CA2631235A CA2631235A1 CA 2631235 A1 CA2631235 A1 CA 2631235A1 CA 002631235 A CA002631235 A CA 002631235A CA 2631235 A CA2631235 A CA 2631235A CA 2631235 A1 CA2631235 A1 CA 2631235A1
Authority
CA
Canada
Prior art keywords
region
tack down
activation
elastic element
substrate web
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.)
Granted
Application number
CA002631235A
Other languages
French (fr)
Other versions
CA2631235C (en
Inventor
Anand Rudra Venkitaraman
George Stephen Reising
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Procter and Gamble Co
Original Assignee
The Procter & Gamble Company
Anand Rudra Venkitaraman
George Stephen Reising
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by The Procter & Gamble Company, Anand Rudra Venkitaraman, George Stephen Reising filed Critical The Procter & Gamble Company
Publication of CA2631235A1 publication Critical patent/CA2631235A1/en
Application granted granted Critical
Publication of CA2631235C publication Critical patent/CA2631235C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/144—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers using layers with different mechanical or chemical conditions or properties, e.g. layers with different thermal shrinkage, layers under tension during bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/18—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets by squeezing between surfaces, e.g. rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
    • B32B2038/0028—Stretching, elongating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51—Elastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2555/00—Personal care
    • B32B2555/02—Diapers or napkins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B32B37/1292—Application of adhesive selectively, e.g. in stripes, in patterns
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1712—Indefinite or running length work
    • Y10T156/1741—Progressive continuous bonding press [e.g., roll couples]

Abstract

A method of producing a stretch laminate exhibiting reduced defects from a mechanical activation process can include providing a nipping member. The nipping member can have a first nip region and a non-nip region adjacent to the first nip region. A first substrate and an elastic element are provided to the nipping member. The first substrate and the elastic element are joined in a face to face relationship with adhesive therebetween, thereby creating an intermediate laminate. The intermediate laminate has a first tack down region and an activation region adjacent the first tack down region. A portion of the first tack down region passes through the first nip region, and a portion of the activation region passes through the non-nip region of the nipping member.
The activation region of the intermediate laminate is mechanically activated, thereby creating the stretch laminate.

Claims (19)

1. A method of making a stretch laminate, the method comprising the steps of:
providing a nipping member, the nipping member comprising a first nip region and a non-nip region disposed adjacent to the first nip region;
providing a first substrate web to the nipping member;
providing an elastic element to the nipping member, joining the first substrate web and the elastic film in a face to face relationship with adhesive therebetween, thereby creating an intermediate laminate, wherein the intermediate laminate comprises a first tack down region and an activation region adjacent to the first tack down region, and wherein a portion of the first tack down region passes through the first nip region and a portion of the activation region passes through the non-nip region; and mechanically activating the activation region of the intermediate laminate, thereby creating the stretch laminate.
2. The method of claim 1, wherein the activation region is mechanically activated at a strain rate of >= about 100s-1.
3. The method of claim 1, wherein the activation region is mechanically activated at a strain rate of >= about 200s-1.
4. The method of claim 1, wherein the activation region is mechanically activated at a strain rate of >= about 500s-1.
5. The method of claim 1, wherein the first tack down region is disposed adjacent to a first end of the intermediate laminate, and the activation region is disposed inboard of the first tack down region.
6. The method of claim 5, wherein the intermediate laminate further comprises a second tack down region disposed adjacent to a second end of the intermediate laminate, wherein the activation region is disposed between the first tack down region and the second tack down region, wherein the nipping member further comprises a second nip region, wherein the first tack down region passes through the first nip region, the second tack down region passes through the second nip region, and the activation region passes through the non-nip region.
7. The method of claim 1 further comprising the steps of: providing a second substrate web to the nipping member, wherein the intermediate laminate comprises the first substrate joined to the elastic element in a face to face relationship with adhesive therebetween and comprises the second substrate web joined to the elastic element in a face to face relationship with adhesive therebetween, and wherein the first tack down region is disposed adjacent a first end of the intermediate laminate.
8. The method of claim 7, wherein the intermediate laminate comprises a second tack down region disposed adjacent to a second end of the intermediate laminate, wherein the activation region is disposed between the first tack down region and the second tack down region, and wherein the nipping member further comprises a second nip region, wherein the first tack down region passes through the first nip region, the second tack down region passes through the second nip region, and the activation region passes through the non-nip region.
9. A method of making a stretch laminate, the method comprising the steps of:
providing a mechanical activation member;
providing a first substrate web to the mechanical activation member;
providing an elastic element to the mechanical activation member;
mechanically activating the first substrate web and the elastic element, in a face to face relationship with adhesive therebetween, thereby forming an intermediate stretch laminate; and nipping the intermediate stretch laminate, thereby creating the stretch laminate.
10. The method of claim 9, wherein the first substrate web and the elastic element are mechanically activated at a strain rate of >= about 100s-1.
11. The method of claim 9, wherein the first substrate web and the elastic element are mechanically activated at a strain rate of >= about 200s-1.
12. The method of claim 9, wherein the first substrate web and the elastic element are mechanically activated at a strain rate of >= about 500s-1.
13. The method of claim 9, wherein the intermediate stretch laminate comprises a first tack down region disposed adjacent to a first end of the intermediate stretch laminate and an activation region disposed inboard of the first tack down region.
14. The method of claim 13, wherein the intermediate stretch laminate further comprises a second tack down region disposed adjacent to a second end of the intermediate stretch laminate, and wherein the activation region is disposed between the first tack down region and the second tack down region.
15. The method of claim 9 further comprising the steps of: providing a second substrate web to the mechanical activation member, mechanically activating the first substrate web and the elastic element in a face to face relationship with adhesive therebetween, and mechanically activating the second substrate web and the elastic element in a face to face relationship with adhesive therebetween, such that an intermediate stretch laminate comprises the first substrate web, the elastic element, and the second substrate web.
16. The method of claim 15, wherein the intermediate stretch laminate comprises a first tack down region disposed adjacent to a first end of the intermediate stretch laminate, a second tack down region disposed adjacent to a second end of the intermediate stretch laminate, and an activation region disposed between the first tack down region and the second tack down region.
17. The method of claim 9, wherein the first substrate web has a first substrate temperature as the first substrate web passes through the mechanical activation member, wherein the second substrate web has a second substrate temperature as the second substrate web passes through the mechanical activation member, wherein the elastic element has an elastic film temperature as the elastic element passes through the mechanical activation member, and wherein the first substrate temperature and the second substrate temperature are greater than the elastic element temperature.
18. The method of claim 17, wherein the first substrate temperature and the second substrate temperature are in a range from about 60 degrees C to about 70 degrees C.
19. The method of claim 18, wherein the elastic element temperature is in a range from about 22 degrees C to about 25 degrees C.
CA2631235A 2005-12-01 2006-11-29 Method of producing a stretch laminate Expired - Fee Related CA2631235C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/291,188 US7824514B2 (en) 2005-12-01 2005-12-01 Method of producing a stretch laminate
US11/291,188 2005-12-01
PCT/IB2006/054518 WO2007063511A2 (en) 2005-12-01 2006-11-29 Method of producing a stretch laminate

Publications (2)

Publication Number Publication Date
CA2631235A1 true CA2631235A1 (en) 2007-06-07
CA2631235C CA2631235C (en) 2012-07-10

Family

ID=38092649

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2631235A Expired - Fee Related CA2631235C (en) 2005-12-01 2006-11-29 Method of producing a stretch laminate

Country Status (6)

Country Link
US (2) US7824514B2 (en)
EP (2) EP2202057B1 (en)
JP (1) JP4819133B2 (en)
CN (1) CN101321617A (en)
CA (1) CA2631235C (en)
WO (1) WO2007063511A2 (en)

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US20100168705A1 (en) * 2008-12-30 2010-07-01 Stabelfeldt Sara J Disposable Absorbent Garments Employing Elastomeric Film Laminates With Deactivated Regions
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Also Published As

Publication number Publication date
CN101321617A (en) 2008-12-10
EP2202057A1 (en) 2010-06-30
CA2631235C (en) 2012-07-10
JP2009517253A (en) 2009-04-30
US20070125492A1 (en) 2007-06-07
US7824514B2 (en) 2010-11-02
US20110000607A1 (en) 2011-01-06
WO2007063511A3 (en) 2007-11-01
EP1954483A2 (en) 2008-08-13
EP1954483B1 (en) 2018-02-28
JP4819133B2 (en) 2011-11-24
EP2202057B1 (en) 2014-04-09
WO2007063511A2 (en) 2007-06-07
US9862174B2 (en) 2018-01-09

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Effective date: 20151130