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WO1997004729A1 - Panneau de fixation adhesif - Google Patents

Panneau de fixation adhesif Download PDF

Info

Publication number
WO1997004729A1
WO1997004729A1 PCT/US1995/009582 US9509582W WO9704729A1 WO 1997004729 A1 WO1997004729 A1 WO 1997004729A1 US 9509582 W US9509582 W US 9509582W WO 9704729 A1 WO9704729 A1 WO 9704729A1
Authority
WO
WIPO (PCT)
Prior art keywords
panel
taping
minipanels
adhesive
taping panel
Prior art date
Application number
PCT/US1995/009582
Other languages
English (en)
Inventor
Jerry L. Worstell
Michael F. Bly
Thomas C. Burke
Original Assignee
Blessings Corp.
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 Blessings Corp. filed Critical Blessings Corp.
Priority to PCT/US1995/009582 priority Critical patent/WO1997004729A1/fr
Priority to AU33597/95A priority patent/AU3359795A/en
Publication of WO1997004729A1 publication Critical patent/WO1997004729A1/fr

Links

Classifications

    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/022—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
    • 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
    • A61F13/56—Supporting or fastening means
    • A61F13/58—Adhesive tab fastener elements
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene

Definitions

  • This invention relates to a taping panel used typically to secure garments such as diapers to wearers, to combinations of the taping panel with an adhesive tape to provide a securing means, to garments comprising such securing means, to methods of making and using such panels, and to methods and devices for the manufacture of such panels.
  • the art has resorted to the use of a taping panel permanently attached to the barrier layer for use as the attachment surface.
  • the barrier layer comprises polyethylene and the taping panel comprises polypropylene.
  • One existing system uses an oriented polypropylene taping panel having a polycarbamate coating thereon.
  • Another taping panel system uses polypropylene having a uniform pattern embossed over its entire surface.
  • Other methods for solving this problem include the use of an adhesive strip having portions with adhesive alternating with portions having no adhesive; for example, US 4,299,223 and US 4,911,563.
  • the present invention provides a taping panel having a generally rectangular geometry defining a long dimension and a short dimension, the panel having thereon along the long dimension alternating minipanels of high and low aggression to a particular adhesive tape.
  • the invention also provides a securement system comprising the taping panel and an adhesive tape.
  • the invention further provides a garment, preferably an incontinence device, wherein the means of attaching the garment to the wearer is by the combination of an adhesive tape and the novel taping panel of this invention. More particularly, the invention provides a taping panel for use in the attachment of a garment to a wearer by means of strips having an adhesive thereon, said panel comprising alternating minipanels which exhibit, respectively, relatively higher and relatively lower aggression to the adhesive strip.
  • the invention also provides, more particularly, an incontinence device which comprises an absorbent, a barrier layer having an inside to which said absorbent is attached and an outside, said barrier layer also defining front and rear portions of the device, adhesive strips having an adhesive coating thereon, said strips having a fixed end attached to said device at said rear portion and a free end, and a taping panel as defined by claim 1 attached to the outside of the barrier layer at the front portion thereof.
  • Fig. 1 is a perspective view of an idealized disposable diaper.
  • Fig. 2 is a view of an embodiment of a taping panel according to this invention.
  • Fig. 3 is a perspective view of an embossing roll useful for making the taping panel shown in Fig. 2.
  • Figs. 4a and 4b are idealized views of processes for manufacturing the taping panel shown in Fig. 2 using the embossing roll shown in Fig. 3.
  • the invention primarily is directed to a taping panel useful with garments attached to wearers with adhesive strips that attach to a portion of the article.
  • Such garments typically include diapers and similar incontinence devices; the invention is also applicable to paper clothing, such as used in hospital environments, and similar articles or garments which are attached to or worn by people or animals.
  • Fig. 1 depicts a conventional disposable diaper 101 which comprises an absorbent portion 103 for contact with the wearer and a barrier layer 105 to protect the exudate in the absorbent from leaking and/or contacting the wearer's clothing or surfaces with which the wearer may come in contact.
  • the diaper is typically constructed to provide a front portion 107 having opposing ends or corners 107a and 107b, and a rear portion 109 having opposing ends or corners 109a and 109b.
  • the rear portion is provided with adhesive strips Ilia and illb in the vicinity of the respective corners I09a/b.
  • the adhesive strips have a free end 113 for attachment of the diaper to the wearer by adhering to the front portion, and a fixed end 115 secured in the vicinity of the rear corner.
  • landing strips 117a and 117b are provided attached to the inside of the diaper (i.e., the side of the barrier layer to which the absorbent is attached) for placement of the adhesive tape during shipping; such an arrangement in the configuration of the adhesive and landings strips is as shown for Illb and 117b in Fig. 1.
  • the adhesive strip When placed on a wearer, the adhesive strip is removed from the landing strip and the free end is brought around to the front portion and attached to a taping panel 119 permanently secured to the outside of the diaper (e.g., the side of the barrier layer away from the wearer) .
  • the taping panel is preferably generally rectangular and has a long side 119a and a short side 119b.
  • the panel comprises a plurality or multiplicity of alternating minipanels which provide different, and alternating, surfaces exhibiting different aggression to the adhesive strip; for example, minipanels 121 having a high aggression alternating with minipanels 123 having a low aggression to the adhesive strip.
  • alternating minipanels which provide different, and alternating, surfaces exhibiting different aggression to the adhesive strip; for example, minipanels 121 having a high aggression alternating with minipanels 123 having a low aggression to the adhesive strip.
  • PSTC-1 Pressure Sensitive Tape Council
  • others e.g., ASTM-D3330
  • a dynamic shear test can also be a useful measurement of adhesive aggressiveness.
  • the minipanels of high aggression are generally made with homogeneous surfaces having a smooth or matte surface.
  • the minipanels of low aggression are generally made such that the minipanels present a reduced surface area for tape adhesion, whereby a lower aggression is achieved.
  • Another factor effecting the aggressiveness of the minipanel is the width 125 of the high aggression panel and the width 127 of the low aggression panel, including the ratio of their widths.
  • the minipanels may all be of the same width, or those having a higher aggression may be wider or narrower than those exhibiting a lower aggression. It may also be desirable to provide differing panel widths along the long length of the taping panel, such as narrower towards the middle of the panel and wider towards each of the short ends.
  • the taping panels can be made by embossing a film with an embossing roll as shown in Fig. 3.
  • the embossing roll 129 is typically a roll having an engraved aluminum surface suitable for embossing polyolefin film.
  • the embossing roll is provided with portions corresponding the surfaces characteristics desired for the minipanels in the taping panel.
  • the taping panel can be made by any number of methods, two of which are shown in Figs. 4a and 4b.
  • a film is made by a cast-embossed process in which polypropylene pellets (commercially available, e.g., melt flow index of 35) are melted and cast in an extruder 135 to provide a film 137.
  • the film is passed through a nip between an embossing roll 139 and a roll having a rubber surface 141 to provide the embossed surfaces as shown in Fig. 2.
  • Another method for making the film is by chill casting, as shown in Fig. 4b.
  • a film 145 which is at a temperature sufficiently high for the film to receive a pattern from a chilled embossing roll 147 onto which the film is extruded. Because there is no nip through which the film passes, the outside of the film (i.e., away from the embossing roll) has a smooth, shiny appearance; in the cast-embossed process, the film side in contact with the rubber roll is typically of a matte finish. If desired, the embossing roll can be provided such that the boundaries between the minipanels are sufficiently deep to provide score lines between the minipanels.
  • the film may also be provided with minipanels having differing adhesion by the application of an overfinish to alternating panels.
  • Overfinishes increasing or decreasing the adhesion can be used depending upon design choices, or two separate overfinishes, one increasing adhesion and the other decreasing adhesion, can be applied to alternate panels.
  • the film is then cut into panels or strips which are permanently affixed to the outside of the diaper by heat sealing and/or with an adhesive.
  • the panel is attached so that the embossed side faces away from the diaper and serves as the landing strip for the adhesive tape.
  • the film may be comprised of virtually any film-forming polymeric material such as a polyolefin or a polyester.
  • Polyolefins are preferred, including those derived from ethylene, propylene, and l-butene monomers, homopolymers of any such monomers, and copolymers (including terpolymers) thereof, including blends (alloys) of two or more polyolefin homopolymers or copolymers. Most preferred is polypropylene homopolymer.
  • the minipanels have an alternating high and low aggression to the adhesive.
  • the terms “high” and “low” are relative to each other when adhesion is determined by a standardized testing method.
  • the minipanels of high aggression preferably have a smooth or matte finish (e.g., a matte finish with a surface smoothness of 60 R/A) .
  • the minipanels of low aggression are typically those which are embossed. Virtually any embossing pattern will provide a minipanel having some surface portions which are depressed, whereby a diminished taping surface is presented to the adhesive strip.
  • a preferred embossing pattern is known as taffeta, which has an appearance of a continuous diamond pattern, and especially one having a density of less than about 250 diamonds/inch. A pattern having 165 diamonds/inch will provide a more aggressive adhesion than one having
  • a preferred taping panel has minipanels of high aggression with a width of 1/4" (60 R/A matte finish) alternating with minipanels of low aggression having a width of 1/8" and having embossed thereon a regular diamond taffeta pattern (2 mil depth) having a pattern density of 165 diamonds/inch.
  • a series of films would be made and embossed with an embossing roll as shown in Fig. 3, the series including films having differing patterns and/or densities for embossing, and/or differing widths of the minipanels.
  • the embossed film is cut into taping panels and tested for adhesive aggressiveness. A standard adhesion test is performed on each of the taping panels and the difference, if any, in the adhesion of the adhesive strip is determined.
  • the high aggression minipanels exhibit an adhesive force at least 15% greater than the low aggression minipanels, more preferably at least 25% greater, and most preferably at least 50% greater. It should be noted that, to some extent, the desired difference in adhesive aggressiveness will be related to the idiosyncracies of the person placing the diaper on the wearer.
  • the low aggression minipanels will provide an improved refastening performance because less of the adhesive from the strip will be left on the surface of these minipanels. Accordingly, more adhesive remains on the adhesive strip to allow for multiple opportunities to remove and attach the adhesive strip.
  • Another benefit of the present invention is that a more aggressive adhesive can be used on the adhesive tape.
  • the taping panel has minipanels exhibiting a low aggressiveness, problems associated with deformation or tearing of the panel and possibly the barrier layer can be avoided using the present invention even with a more aggressive adhesion.
  • Yet another benefit of the invention is that a narrower width adhesive tape can be used. Since wider tapes are more costly, a narrower tape would provide cost savings. Adjustment of the aggressiveness of the alternating minipanels allows for a tape of a desired, narrower width to be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

L'invention concerne un panneau de fixation adhésif (119) particulièrement utile pour les couches jetables (101). Ce panneau (119) est constitué de mini-panneaux alternants (121, 123), qui présentent des taux différents (élevés et bas) d'adhésivité par rapport aux bandes (111a, 111b) utilisées pour fermer la couche. On peut fabriquer le panneau collant (119) en gaufrant (139) une couche polyoléfinique (137, 145) de façon que chaque mini-panneau (121, 123) présente une adhésivité différente, élevée et basse, par rapport à la bande (111a, 111b).
PCT/US1995/009582 1995-07-28 1995-07-28 Panneau de fixation adhesif WO1997004729A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/US1995/009582 WO1997004729A1 (fr) 1995-07-28 1995-07-28 Panneau de fixation adhesif
AU33597/95A AU3359795A (en) 1995-07-28 1995-07-28 Adhesive taping panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1995/009582 WO1997004729A1 (fr) 1995-07-28 1995-07-28 Panneau de fixation adhesif

Publications (1)

Publication Number Publication Date
WO1997004729A1 true WO1997004729A1 (fr) 1997-02-13

Family

ID=22249551

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/009582 WO1997004729A1 (fr) 1995-07-28 1995-07-28 Panneau de fixation adhesif

Country Status (2)

Country Link
AU (1) AU3359795A (fr)
WO (1) WO1997004729A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5681306A (en) * 1994-06-21 1997-10-28 The Procter & Gamble Company Disposable absorbent articles having improved tape tab fasteners
WO2000037016A1 (fr) * 1998-12-18 2000-06-29 Kimberly-Clark Worldwide, Inc. Articles absorbants munis d'une couture a fixation reutilisable presentant des niveaux de resistance differencies
GB2362087A (en) * 1998-12-18 2001-11-14 Kimberly Clark Co Absorbent articles having differential strength refastenable seam
US6447497B1 (en) 1999-11-22 2002-09-10 Kimberly-Clark Worldwide, Inc. Absorbent article with child resistant refastenable seams
US6645190B1 (en) 1999-11-22 2003-11-11 Kimberly-Clark Worldwide, Inc. Absorbent article with non-irritating refastenable seams
US6761711B1 (en) 1998-12-18 2004-07-13 Kimberly-Clark Worldwide, Inc. Absorbent articles with refastenable side seams
US6849067B2 (en) 1999-11-22 2005-02-01 Kimberly-Clark Worldwide, Inc. Absorbent articles with refastenable side seams
GB2463320A (en) * 2008-09-15 2010-03-17 Auxetic Technologies Ltd Multi-layer adhesive interface containing auxetic material
US8123733B2 (en) 2009-01-29 2012-02-28 First Quality Baby Products, Llc Absorbent article with intermittent side seams
US8343127B1 (en) 1999-11-22 2013-01-01 Kimberly-Clark Worldwide, Inc. Absorbent articles with garment-like refastenable seams

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2264258A (en) * 1992-01-28 1993-08-25 Uni Charm Corp Air-permeable and liquid-impermeable backsheet for use in body fluid absorbent articles,and its manufacturing method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2264258A (en) * 1992-01-28 1993-08-25 Uni Charm Corp Air-permeable and liquid-impermeable backsheet for use in body fluid absorbent articles,and its manufacturing method

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5681306A (en) * 1994-06-21 1997-10-28 The Procter & Gamble Company Disposable absorbent articles having improved tape tab fasteners
US7695464B2 (en) 1998-12-18 2010-04-13 Kimberly-Clark Worldwide, Inc. Absorbent articles with refastenable side seams
US6764475B1 (en) 1998-12-18 2004-07-20 Kimberly-Clark Worldwide, Inc. Absorbent articles having differential strength refastenable seam
US8747379B2 (en) 1998-12-18 2014-06-10 Kimberly-Clark Worldwide, Inc. Absorbent articles with refastenable side seams
GB2362087B (en) * 1998-12-18 2003-06-18 Kimberly Clark Co Absorbent articles having differential strength refastenable seam
WO2000037016A1 (fr) * 1998-12-18 2000-06-29 Kimberly-Clark Worldwide, Inc. Articles absorbants munis d'une couture a fixation reutilisable presentant des niveaux de resistance differencies
US6761711B1 (en) 1998-12-18 2004-07-13 Kimberly-Clark Worldwide, Inc. Absorbent articles with refastenable side seams
GB2362087A (en) * 1998-12-18 2001-11-14 Kimberly Clark Co Absorbent articles having differential strength refastenable seam
US6849067B2 (en) 1999-11-22 2005-02-01 Kimberly-Clark Worldwide, Inc. Absorbent articles with refastenable side seams
US7534237B2 (en) 1999-11-22 2009-05-19 Kimberly-Clark Worldwide, Inc. Absorbent article with non-irritating refastenable seams
US6905488B2 (en) 1999-11-22 2005-06-14 Kimberly-Clark Worldwide, Inc. Absorbent article with child resistant refastenable seams
US6645190B1 (en) 1999-11-22 2003-11-11 Kimberly-Clark Worldwide, Inc. Absorbent article with non-irritating refastenable seams
US8343127B1 (en) 1999-11-22 2013-01-01 Kimberly-Clark Worldwide, Inc. Absorbent articles with garment-like refastenable seams
US6447497B1 (en) 1999-11-22 2002-09-10 Kimberly-Clark Worldwide, Inc. Absorbent article with child resistant refastenable seams
GB2463320A (en) * 2008-09-15 2010-03-17 Auxetic Technologies Ltd Multi-layer adhesive interface containing auxetic material
US8123733B2 (en) 2009-01-29 2012-02-28 First Quality Baby Products, Llc Absorbent article with intermittent side seams

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Publication number Publication date
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