WO2000006372A1 - Couverture imper-respirante resistant aux salissures pour articles - Google Patents

Couverture imper-respirante resistant aux salissures pour articles Download PDF

Info

Publication number
WO2000006372A1
WO2000006372A1 PCT/US1999/016933 US9916933W WO0006372A1 WO 2000006372 A1 WO2000006372 A1 WO 2000006372A1 US 9916933 W US9916933 W US 9916933W WO 0006372 A1 WO0006372 A1 WO 0006372A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
fabric
film
making
laminate
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.)
Ceased
Application number
PCT/US1999/016933
Other languages
English (en)
Inventor
John H. Walton
Theresa M. Mcdonnell
Robert Dale
Timothy Huskey
Larry Mcamish
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.)
Avintiv Specialty Materials LLC
Original Assignee
Polymer Group Inc
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 Polymer Group Inc filed Critical Polymer Group Inc
Priority to EP99935943A priority Critical patent/EP1109665A4/fr
Priority to AU51313/99A priority patent/AU745444B2/en
Publication of WO2000006372A1 publication Critical patent/WO2000006372A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G9/00—Bed-covers; Counterpanes; Travelling rugs; Sleeping rugs; Sleeping bags; Pillows
    • A47G9/02—Bed linen; Blankets; Counterpanes
    • A47G9/0238—Bed linen
    • A47G9/0253—Pillow slips
    • 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
    • B32B38/04—Punching, slitting or perforating
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G9/00—Bed-covers; Counterpanes; Travelling rugs; Sleeping rugs; Sleeping bags; Pillows
    • A47G2009/001—Anti-allergen; Anti-mite
    • 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
    • B32B38/04—Punching, slitting or perforating
    • B32B2038/047—Perforating
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/20—Fibres of continuous length in the form of a non-woven mat
    • 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
    • B32B2307/70—Other properties
    • 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
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • 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
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for

Definitions

  • This invention relates to breathable, satin-resistant covering for articles, such as
  • the woven fabric of a cotton and polyester blend.
  • the fabric is coated with a finish to
  • tickings are noisy and hot, and therefore
  • ticking comprises a film and fabric laminated to one another, with the film being
  • the laminated fabric has an air
  • the fabric is also preferably treated with a repellent to render
  • the fabric layer of the laminate of the invention may be a conventional textile such as
  • the fabric comprises a nonwoven made from
  • fibers or filaments These include fabrics made from carded fibers, spunbonded fabrics of
  • nonwoven fabrics made from a
  • the fabric layer in web form is treated with an aqueous
  • suspension that preferably comprises an acrylic flexible binder, a fluorocarbon repellent,
  • the thus treated fabric is laminated to a
  • the present invention further comprises a method for making the cover of the
  • the method generally comprises the steps of providing a nonwoven web of fibers, treating the fabric with a mixture comprising a flexible binder and a liquid
  • the nonwoven layer is
  • film preferably has a basis weight between about 0.2-0.75 oz/yd 2 (6.7-25.1 gm/m 2 ).
  • the nonwoven substrate and the film are fed into a nip between two rolls for
  • the two rolls comprise a first coated metal roll heated to a temperature above
  • the film softens and adheres to the fabric while under
  • the surface pattern on the heated roll imparts a
  • the method of the invention thus provides a process for producing a final laminate
  • Figure 1 is a schematic of an embodiment of the process of making the non-woven substrate layer of the invention
  • Figure 2 is a schematic of an embodiment of the process of making the laminate fabric material of the invention
  • Figure 3 is a partial cutaway perspective view of a pillow made according to an embodiment of the method of the invention
  • Figure 4 is a partial cross section of the pillow of Fig. 3.
  • Fig. 1 shows a preferred process of the invention for producing the preferred non- woven substrate of the invention.
  • Fibers 2 are extruded from extruder 4 onto moving support 6, thereby forming lightly entangled web 8.
  • fibers 2 are illustrated as being extruded, they may likewise comprise carded staple fibers or spunbond fibers. Most preferred fibers 2 comprise continuously extruded polyester filaments.
  • Lightly bonded web 2 is transferred to rotating forming drum 10 with three dimensional, apertured surface 12 (shown in exaggeration).
  • the term "three dimensional' * refers to a condition of having raised portions with a continuous recessed portion therebetween.
  • Web 8 supported on drum surface 12 passes under high pressure water jet stations 14 fed by high pressure water supply line 16 which impinges web 8 with a plurality of high pressure water jets 18. Web 8 is thereby hydroentangled and imparted with a three dimensional, apertured surface.
  • a more detailed description of the method of hydroentangling using three dimensional, apertured surfaces and the web thereby formed is provided in U.S. Patents
  • Entangled web 20 preferably has a basis weight of between about 0.3-
  • Entangled web 20 is then passed through dip and squeeze station 21 which comprises aqueous bath 22 and roller squeeze 24.
  • Bath 22 preferably comprises an acrylic binder, an anti-microbial, and a fluid resisting agent such as a fluorocarbon.
  • the binder employed when cured by drying, serves to maintain the integrity of the fabric and also serves to retain the repellent and the antimicrobial agent.
  • Bath 22 may also comprise a flame retardant.
  • Web 20 is then squeezed with rollers 24 to remove excess liquid treatment, and passed through dryer 26 for further drying.
  • drier 26 preferably comprises a tenter frame drier which serves to hold the web 20 in its original width and to prevent shrinking tent drier, as is known in the art, so that web
  • Treatment is preferably provided such that web 20 collects a net amount of about 0.2 oz/yd 2 (6.7 gm/m 2 ) through station 21, so that final treated web 20 has a preferred basis weight of between about 0.5-2.5 oz/yd 2 (16.7 - 83.5
  • Film 60 preferably comprises low density polyethylene (“LDPE”), linear low density polyethylene
  • LLDPE polyethylene
  • polypropylene polypropylene
  • polyvinylchloride polyvinylchloride
  • EMA ethylene vinyl acetate
  • blends and copolymers thereof The preferred
  • weight of the film can vary between 0.2 to 0.75 oz/yd 2 (6.7-25 gm/m 2 ), provided only that
  • the film and fabric laminate is capable of being processed to render the film porous.
  • a suitable film is 77 parts low density polyethylene, 20 parts EMA, and 3 parts
  • the film 60 and non-woven web are dropped into nip 71 between a heated, smooth
  • Roll 70 is preferably coated with Teflon and
  • example film described above is in the range of about 225° F (107° C).
  • film layer 60 is cast on in nip 71 , where the pressure is preferably about 30-50 psi.
  • the shape of the apertures or holes in the apertured film corresponds generally to
  • the size and number of lands on forming roll 72 should be 2 selected to provide the desired air permeability.
  • roll 72 may advance at a faster rate than roll 70 to adjust the air permeabihty of the final fabric.
  • the final film 60 4 layer as laminated preferably comprises about 0.5 oz/yd 2 (16.7 gm m 2 ).
  • the porosity of the final composite is an important consideration.
  • the porosity of 6 the composite should be in the range of about 25 - 180 ft 3 /min (708-5,094 hter/min) as measured by standard test procedures.
  • the porosity can be in the 8 upper end of the range, such as between about 80 - 110 ft /min (2,264 - 3,113 hter/min); and for down fill pillows between about 30-50 ft 3 /min (849 - 1,415 hter/min) to resist l o feathers from piercing the fabric.
  • the apertured film / fabric laminate adheres to roll 72 as it advances and is cooled 12 with roller 76 which is held at a relatively low temperature of between about 45° -70° F (7° - 21° C) for use with the preferred film described above.
  • the laminate is pulled off of 14 roll 76 with a pair of pull rolls 77 and 78, and accumulated on take-up roll 80.
  • the hydrostatic head of the finished laminate fabric is in the order of 8 to 15 cm, as 18 measured with the hydrohead test.
  • Stain resistance as measured by the Alcohol Drop Test, is 9 to 10, which corresponds to hold out of a drop of 90 to 100 percent isopropyl 0 alcohol.
  • the thus produced 2 fabric is then cut to form substantially rectangular pieces, with two of the pieces joined together to make a sealed pouch with filling therebetween to form a pillow.
  • a 4 article is shown in a partial cut away perspective view in Fig. 3.
  • the fabric of the invention 100 covers a filling 102 which may comprise, for example, synthetic fibers or 2 organic down.
  • the fabric of the invention is preferably oriented with the film layer 104 facing inwards and the non-woven layer 106 facing outwards, as shown in the partial cross
  • the continuous film layer 104 prevents penetration of hquids, and penetration of hquids through the pores in film 104 is impeded
  • the laminate of the invention may also of 8 course be used for other applications, with examples comprising a protective cover for other objects such as on a mattress, head rest, or as a furniture cover, where good stain l o resistance and porosity is required.
  • the preferred method of the invention thereby comprises a process for making a
  • the resultant fabric is also preferably treated with a repellent to render it stain resistant and may also be treated with an anti-microbial agent.
  • a resultant article such as a pillow tick, advantageously is highly stain resistant, breathable for comfort, durable, economical to produce, and has a patterned surface that appears
  • the present invention further comprises the fabric like cover material made 0 through the method of the invention.
  • This fabric of the invention comprises a film and fabric laminated to one another, with the film being apertured in a controlled manner to 2 allow the air permeabihty of the laminate to be tailored to the type of pillow filling used, such as fiberfill or down.
  • the laminated fabric has an air permeabihty of between about 4 25-180 fiVmin (708-5,0941/min), as measured using the Frazier air permeabihty test, as is well known in the art.
  • the fabric is also preferably treated with a repellent to render it stain resistant and may also be treated with an antimicrobial agent.
  • the fabric layer of the laminate of the invention may be a conventional textile such as a woven or braided fabric.
  • the fabric comprises a nonwoven made from fibers or filaments. These include fabrics made from carded fibers, spunbonded fabrics of continuous filaments and composites. Most prefe ⁇ ed are nonwoven fabrics made from a process called hydroentanglement wherein fine jets of water are used to entangle a web of fibers into a coherent sheet.
  • hydroentanglement wherein fine jets of water are used to entangle a web of fibers into a coherent sheet.
  • Modern processes are available wherein the web is consohdated on a porous roll having a three dimensional surface to provide additional depth and pattern to the fabric and to simulate woven or knitted fabrics.
  • the fabric layer may comprise natural or synthetic fibers or filaments or combinations thereof.
  • the fibers preferably include polyester, although others such as nylon, rayon, cotton, polyolefin and others, as well as mixtures thereof, may be employed. Polyester and polyester blends are preferred in many cases, since these are the materials currently used in the relevant industry.
  • the prefe ⁇ ed fabric layer weight range is between about 0.5 to 2.5 oz/yd 2 (16.7-83.5 gm/m 2 ), with about 1.6-2.5 oz/yd 2 (53.4-83.5 gm/m 2 ) most prefe ⁇ ed.
  • the nonwoven has a three dimensional, apertured surface, as results from hydroentangling fibers supported on a three dimensional, apertured forming surface, to provide aesthetic and breathabihty advantages to the final laminate fabric.
  • a process for making a suitable non-woven as well as the non-woven described therein are described in U.S. Patent Nos. 3,632,269, 4,381,326; 4,690,679; 4,806,411 ; and 4,859,519; incorporated herein by reference.
  • the fabric layer in web form is treated with an aqueous suspension that preferably comprises an acrylic flexible binder, a fluorocarbon repellent, and an antimicrobial agent, such as Arichlorosan.
  • a flame retardant may also be comprised.
  • the resulting laminate fabric advantageously has a stain resistance rating of 9-10 as measured by the Alcohol Drop Test, as is known in the art.
  • the laminate fabric supports a hydrostatic head of 10-15 cm, as measured by the hydrohead test, as is also known in the art.
  • the prefe ⁇ ed fabric of the invention has a flame retardancy rating of at least 9 seconds, as measured using standard tests known in the art.
  • the film preferably is comprised of a member chosen from the group consisting of polyethylene, polypropylene, polyvinylchloride, ethylene maleic anhhydride, ethylene vinyl acetate, and combinations thereof.
  • the film preferably has a basis weight of between about 0.2 - 0.75 oz/yd 2 (6.7-25.1 gm/m 2 ), and most preferably has a basis weight of about 0.5 oz/yd 2 (16.7 gm/m 2 ).
  • apertures are formed to provide the laminate fabric with an air permeabihty of preferably between about 30-50 ft 3 /min (849-1415 1 min), as measured by the Frazier air permeability test, when it is to be used with down filling. If fiber fill is to be used, an air permeabihty of between about 80-110 ftV ⁇ rin (849- 1415 1/min) is prefe ⁇ ed.
  • a prefe ⁇ ed embodiment of the present invention comprises a pillow formed from the laminate fabric cover of the invention, as is shown in a partial cut away perspective view in Fig. 3.
  • the fabric of the invention 100 covers a filling 102 which may comprise, for example, synthetic fibers or organic down.
  • the fabric of the invention is preferably oriented with the film layer 104 facing inwards and the non-woven layer 106 facing outwards, as shown in the partial cross section of Fig. 4 of the pillow of Fig. 3.
  • Such an orientation provides aesthetic advantages, as well as advantages for user comfort.
  • the continuous film layer 104 prevents penetration of hquids, and penetration of hquids through the pores in film 104 is impeded by the treated fabric 106 on the reverse side of the pores.
  • the laminate is also advantageously suited for use as a protective cover for other objects such as on a mattress, head rest, or as a furniture cover, where good stain resistance and porosity is required.

Landscapes

  • Laminated Bodies (AREA)

Abstract

L'invention concerne une matière textile lamellée qui comprend une couche externe non tissée hydro-enchevêtrée, superposée à une couche interne d'un film de polymère munie de trous. La couche externe est traitée pour lui conférer des qualités de résistance fluide et d'anti-feu, et au moyen d'un produit antimicrobien. La couche interne est munie de trous qui lui confèrent une perméabilité à l'air désirée. La matière textile lamellée ainsi obtenue résiste aux salissures, est imper-respirante, durable et relativement peu chère à produire. Elle peut trouver une utilité particulière comme taie d'oreiller (100) ou article analogue.
PCT/US1999/016933 1998-07-27 1999-07-26 Couverture imper-respirante resistant aux salissures pour articles Ceased WO2000006372A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99935943A EP1109665A4 (fr) 1998-07-27 1999-07-26 Couverture imper-respirante resistant aux salissures pour articles
AU51313/99A AU745444B2 (en) 1998-07-27 1999-07-26 Breathable, stain-resistant cover for articles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9428398P 1998-07-27 1998-07-27
US60/094,283 1998-07-27

Publications (1)

Publication Number Publication Date
WO2000006372A1 true WO2000006372A1 (fr) 2000-02-10

Family

ID=22244239

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/016933 Ceased WO2000006372A1 (fr) 1998-07-27 1999-07-26 Couverture imper-respirante resistant aux salissures pour articles

Country Status (3)

Country Link
EP (1) EP1109665A4 (fr)
AU (1) AU745444B2 (fr)
WO (1) WO2000006372A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001092619A3 (fr) * 2000-06-01 2002-04-25 Kimberly Clark Co Housse de protection
WO2003061437A1 (fr) * 2002-01-22 2003-07-31 Daniele Bufarini Drap de lit impermeable possedant des proprietes respiratoires et ignifuges
WO2004060664A1 (fr) * 2002-12-24 2004-07-22 Kimberly-Clark Worldwide, Inc. Nontisse ajoure pourvu d'une couche mince
FR2866534A1 (fr) * 2004-02-24 2005-08-26 G Et C Sa Couverture de protection isolante contre le froid et hygienique notamment a usage medicalise
DE102005014317A1 (de) * 2005-03-30 2006-10-05 Carl Freudenberg Kg Synthetisches Leder, Verfahren zu dessen Herstellung und dessen Verwendung
GB2478550A (en) * 2010-03-09 2011-09-14 Julia Hunter Fabric for soft furnishings, treated with biocide and coated
US8256046B2 (en) 2004-09-03 2012-09-04 Cellcomb Aktiebolag Sanitary product
CN112955315A (zh) * 2018-07-30 2021-06-11 元生堂有限公司 吸收性材料及其制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4781962A (en) * 1986-09-09 1988-11-01 Kimberly-Clark Corporation Composite cover material for absorbent articles and the like
US5290628A (en) * 1992-11-10 1994-03-01 E. I. Du Pont De Nemours And Company Hydroentangled flash spun webs having controllable bulk and permeability
US5919177A (en) * 1997-03-28 1999-07-06 Kimberly-Clark Worldwide, Inc. Permeable fiber-like film coated nonwoven

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2012159A (en) * 1977-12-16 1979-07-25 Courtaulds Ltd Mattress cover
US4499139A (en) * 1984-03-02 1985-02-12 The Kendall Company Microsized fabric
US5035943A (en) * 1989-05-12 1991-07-30 Precision Fabrics Group Breathable foam-coated nonwoven pillow ticking
CA2085650C (fr) * 1993-02-09 1995-12-19 Paul R. Bovie Vetement protecteur jetable
US5539072A (en) * 1993-03-26 1996-07-23 W. L. Gore & Associates, Inc. Fabric laminates
EP0748178B1 (fr) * 1994-03-04 2002-06-12 Allergy Control Products, Inc. Articles de literie enserres dans un film elastique lamine, etanche a l'eau mais permeable a l'humidite, formant barrage aux allergenes
US5776343A (en) * 1995-08-03 1998-07-07 Applied Extrusion Technologies, Inc. Fluoroplastic apertured film fabric, structures employing same and method of making same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4781962A (en) * 1986-09-09 1988-11-01 Kimberly-Clark Corporation Composite cover material for absorbent articles and the like
US5290628A (en) * 1992-11-10 1994-03-01 E. I. Du Pont De Nemours And Company Hydroentangled flash spun webs having controllable bulk and permeability
US5919177A (en) * 1997-03-28 1999-07-06 Kimberly-Clark Worldwide, Inc. Permeable fiber-like film coated nonwoven

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1109665A4 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001092619A3 (fr) * 2000-06-01 2002-04-25 Kimberly Clark Co Housse de protection
KR100753743B1 (ko) * 2000-06-01 2007-08-31 킴벌리-클라크 월드와이드, 인크. 보호 커버 용품
CN100445449C (zh) * 2000-06-01 2008-12-24 金伯利-克拉克环球有限公司 防护覆盖制品
WO2003061437A1 (fr) * 2002-01-22 2003-07-31 Daniele Bufarini Drap de lit impermeable possedant des proprietes respiratoires et ignifuges
WO2004060664A1 (fr) * 2002-12-24 2004-07-22 Kimberly-Clark Worldwide, Inc. Nontisse ajoure pourvu d'une couche mince
FR2866534A1 (fr) * 2004-02-24 2005-08-26 G Et C Sa Couverture de protection isolante contre le froid et hygienique notamment a usage medicalise
US8256046B2 (en) 2004-09-03 2012-09-04 Cellcomb Aktiebolag Sanitary product
DE102005014317A1 (de) * 2005-03-30 2006-10-05 Carl Freudenberg Kg Synthetisches Leder, Verfahren zu dessen Herstellung und dessen Verwendung
GB2478550A (en) * 2010-03-09 2011-09-14 Julia Hunter Fabric for soft furnishings, treated with biocide and coated
CN112955315A (zh) * 2018-07-30 2021-06-11 元生堂有限公司 吸收性材料及其制备方法

Also Published As

Publication number Publication date
EP1109665A1 (fr) 2001-06-27
EP1109665A4 (fr) 2002-07-17
AU5131399A (en) 2000-02-21
AU745444B2 (en) 2002-03-21

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