GB1310691A - Random fibre webs and method of making same - Google Patents

Random fibre webs and method of making same

Info

Publication number
GB1310691A
GB1310691A GB2752370A GB2752370A GB1310691A GB 1310691 A GB1310691 A GB 1310691A GB 2752370 A GB2752370 A GB 2752370A GB 2752370 A GB2752370 A GB 2752370A GB 1310691 A GB1310691 A GB 1310691A
Authority
GB
United Kingdom
Prior art keywords
fibres
shrinkable
web
acrylonitrile
webs
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.)
Expired
Application number
GB2752370A
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.)
Curlator Corp
Original Assignee
Curlator 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 Curlator Corp filed Critical Curlator Corp
Publication of GB1310691A publication Critical patent/GB1310691A/en
Expired 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
    • D04H1/06—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres by treatment to produce shrinking, swelling, crimping or curling of fibres
    • 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
    • B32B38/0036—Heat treatment
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • 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
    • B32B2307/732—Dimensional properties
    • B32B2307/734—Dimensional stability
    • B32B2307/736—Shrinkable

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)

Abstract

1310691 Laminated fibre webs CURLATOR CORP 8 June 1970 [14 July 1969] 27523/70 Heading B5N [Also in Division D1] The non-woven webs described may be stitched to woven fabrics to form a laminate. A bulky, porous, resilient air-laid web comprises randomly orientated fibres of at least two types, one type being shrinkable, after treatment with heat, water (including steam) or sodium hydroxide solution (in the case of natural cellulosic fibres), so that the shrinkable fibres loop and curl, thereby locking together adjacent fibres. Some fibres extend substantially from the upper surface to the lower surface. The web may be needled before the fibres are shrunk. The shrinkable staple fibres, which preferably comprise 30-40% of the total, may be natural cellulose, plasticized cellulose acetate, rayon, cellulose triacetate acrylonitrile, polyvinyl alcohol, polyvinyl chloride/polyvinyl acetate copolymer, polyethylene terephthalate, polyamide, polytetrafluoroethylene or copolymers thereof, or bicomponent triacetate/nylon 6 or acrylonitrile/acrylonitrile. Continuous filaments of two types of polyvinyl chloride, the inner component being more shrinkable, may also be used. The other staple fibre may comprise less shrinkable grades of the above mentioned fibres, wool, vegetable, metal, glass or water soluble alginate polysaccharide fibres. The web may be reinforced by continuous filaments of acrylonitrile or polyester, which may be in the form of a net, or a woven scrim. Layered webs may be air-laid using the apparatus of 1,238,923. A mixture of metal, wool and shrinkable acrylic fibres from the outer randomizing chambers, and a mixture of shrinkable and non-shrinkable acrylic fibres from the centre chamber fall towards the gap between two rotating porous drums, a vacuum being applied to the inside of the drums. The web so formed is needled and then heat shrunk. In another embodiment continuous filaments are fed to the centre of the forming web at a faster rate than the web is produced. The air current carrying the filaments and staple fibres towards the rotating drums is given a perpendicular component, producing waves in the filaments in the width and thickness directions. A non-smooth surface may result from the shrinkage, or from passage of the web through a calender where one roll is heated and embossed, and has a different surface speed to the other roll. The webs may be spray-bonded.
GB2752370A 1969-07-14 1970-06-08 Random fibre webs and method of making same Expired GB1310691A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84121569A 1969-07-14 1969-07-14

Publications (1)

Publication Number Publication Date
GB1310691A true GB1310691A (en) 1973-03-21

Family

ID=25284327

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2752370A Expired GB1310691A (en) 1969-07-14 1970-06-08 Random fibre webs and method of making same

Country Status (2)

Country Link
CA (1) CA934944A (en)
GB (1) GB1310691A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460786A1 (en) * 1979-07-11 1981-01-30 Ichikawa Woolen Textile HEAT-RESISTANT COURIER INTENDED FOR THERMO-PRINTING
GB2123452A (en) * 1982-07-12 1984-02-01 Didier Werke Ag Manufacturing needled mineral fibre blankets
EP0168225A2 (en) * 1984-07-11 1986-01-15 Minnesota Mining And Manufacturing Company Nonwoven thermal insulating stretch fabric and method for producing same
EP0181300A2 (en) * 1984-11-08 1986-05-14 Mölnlycke Aktiebolag Liquid absorbing disposable article
EP1172473A1 (en) * 2000-07-13 2002-01-16 Firma Carl Freudenberg Bulky nonwoven fabric
ITMI20131114A1 (en) * 2013-07-03 2015-01-04 Politex S A S Di Freudenberg Polit Ex S R L SUPPORT SUBSTRATE FOR BITUMINOUS MEMBRANE AND ITS PREPARATION PROCEDURE.

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460786A1 (en) * 1979-07-11 1981-01-30 Ichikawa Woolen Textile HEAT-RESISTANT COURIER INTENDED FOR THERMO-PRINTING
GB2123452A (en) * 1982-07-12 1984-02-01 Didier Werke Ag Manufacturing needled mineral fibre blankets
EP0168225A2 (en) * 1984-07-11 1986-01-15 Minnesota Mining And Manufacturing Company Nonwoven thermal insulating stretch fabric and method for producing same
EP0168225A3 (en) * 1984-07-11 1988-08-31 Minnesota Mining And Manufacturing Company Nonwoven thermal insulating stretch fabric and method for producing same
EP0181300A2 (en) * 1984-11-08 1986-05-14 Mölnlycke Aktiebolag Liquid absorbing disposable article
EP0181300A3 (en) * 1984-11-08 1989-11-23 Mölnlycke Aktiebolag Liquid absorbing disposable article
EP1172473A1 (en) * 2000-07-13 2002-01-16 Firma Carl Freudenberg Bulky nonwoven fabric
ITMI20131114A1 (en) * 2013-07-03 2015-01-04 Politex S A S Di Freudenberg Polit Ex S R L SUPPORT SUBSTRATE FOR BITUMINOUS MEMBRANE AND ITS PREPARATION PROCEDURE.
WO2015000975A1 (en) * 2013-07-03 2015-01-08 Politex S.A.S. Di Freudenberg Politex S.R.L. Substrate for a support for bituminous membrane and method for the preparation thereof
CN105579633A (en) * 2013-07-03 2016-05-11 弗瑞优登伯格-波利得克斯公司 Substrate for a support for bituminous membrane and method for the preparation thereof
RU2658275C2 (en) * 2013-07-03 2018-06-19 Политекс С.А.С. Ди Фройденберг Политекс С.Р.Л. Substrate for a support for bituminous membrane and method for the preparation thereof
CN105579633B (en) * 2013-07-03 2019-03-01 弗瑞优登伯格-波利得克斯公司 The bottom of supporter and preparation method thereof for asphalt membrane
US10526735B2 (en) 2013-07-03 2020-01-07 Politex S.A.S. Di Freudenberg Politex S.R.L. Substrate for a support for bituminous membrane and method for the preparation thereof

Also Published As

Publication number Publication date
CA934944A (en) 1973-10-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee