GB1423213A - Stretchable non-woven polyamide sheet - Google Patents

Stretchable non-woven polyamide sheet

Info

Publication number
GB1423213A
GB1423213A GB2083073A GB2083073A GB1423213A GB 1423213 A GB1423213 A GB 1423213A GB 2083073 A GB2083073 A GB 2083073A GB 2083073 A GB2083073 A GB 2083073A GB 1423213 A GB1423213 A GB 1423213A
Authority
GB
United Kingdom
Prior art keywords
nylon
filaments
sheet
ejector
filament
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
GB2083073A
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.)
Unitika Ltd
Original Assignee
Unitika Ltd
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 Unitika Ltd filed Critical Unitika Ltd
Publication of GB1423213A publication Critical patent/GB1423213A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • 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
    • 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
    • B32B5/026—Knitted 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
    • B32B5/08—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 the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/18—Fabrics, textiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Multicomponent Fibers (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Abstract

1423213 Making artificial leather UNITIKA Ltd 2 May 1973 [2 May 1972] 20830/73 Heading B2E [Also in Divisions B4 B5 D1 and D2] An artificial leather is obtained by coating a foamed polyvinyl chloride resin onto both surfaces of a stretchable non-woven sheet having mutually entangled looped continuous composite filaments composed of at least two different homopolyamides or homopolyamide mixtures in side by side or eccentric conesheath configuration, each filament having a denier of 0.8 to 2, a residual elongation of not more than 100% and at least 20 helical crimps per inch with an average helical radius of 0.1 to 0.5 mm. If the ratio c=b/a is measured, where a is the length of a straight line separating two points on a filament and b is the length of the filament between the lengths then for a=5 mm the probability that c#3 is 20% or less and for a=20 mm the probability the c#2 is 60% or more. The homopolyamide may be nylon 6, nylon 66 or nylon 4. In example 1 the two components are nylon 6 homopolymers of different viscosities, in example 6 the components are nylon 6 and nylon 66 and in other embodiments one or both components may comprise a mixture of the same or different homopolymers. The multifilaments are spun from a multihole spinneret, drafted, taken up at at least 1500 metres/minute by an air stream which deposits them on a moving surface to form a bulky web and allowing the web to stand or heat treating it, to allow the crimps to develope. The drafting may be performed by rollers or by the air stream. Preferably the distance I between spinneret 1 and the ejector 3 is 50 to 100 cm and the distance III between ejector and receiving surface 4 is 70 to 140 cm, extension tubes 3', 3" being fitted to the ejector if necessary to attain these distances. The receiving surface 4 is a wire belt or a perforated cylinder moved at a constant rate. Collection of the filaments may be assisted by suction and/or by electrostatic charging. The ejector(s) 3 may be traversed across the collector surface. The filaments may form bundles of up to 24 parallel filaments but the crimps of such filaments are not completely in phase. Alternatively electrostatic means may separate the filaments before collection. The sheet may be cohered by 50 to 3000 needle punchings or fluid punchings / sq. in. In example 5 a needled sheet is treated with an aqueous emulsion of silicone oil to form a mosaic of hydrophillic and hydrophobic areas then immersed in a dimethylformamide solution of polyurethane to spot bond the sheet. The sheet may be passed between embossing rollers at 180‹C having a woven pattern and the embossed surfaces coated with foamed vinyl chloride resin (example 6). In another example the fibres of the surface are raised to form an artificial chamois leather.
GB2083073A 1972-05-02 1973-05-02 Stretchable non-woven polyamide sheet Expired GB1423213A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47043908A JPS492975A (en) 1972-05-02 1972-05-02

Publications (1)

Publication Number Publication Date
GB1423213A true GB1423213A (en) 1976-02-04

Family

ID=12676800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2083073A Expired GB1423213A (en) 1972-05-02 1973-05-02 Stretchable non-woven polyamide sheet

Country Status (4)

Country Link
JP (1) JPS492975A (en)
DE (1) DE2322130A1 (en)
GB (1) GB1423213A (en)
IT (1) IT985171B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2211730A (en) * 1987-10-30 1989-07-12 Alan Sherick Curtain linings
GB2235473A (en) * 1989-08-18 1991-03-06 Reifenhaeuser Masch A process for the manufacture of a web of spun fibres of thermoplastic synthetic material
US5336071A (en) * 1990-03-14 1994-08-09 Mitsui Petrochemical Industries, Ltd. Air gun for the production of non-woven fabric and non-woven fabric producing apparatus
WO2004046442A1 (en) * 2002-11-21 2004-06-03 Invista Technologies S.À.R.L. High stretch recovery non-woven fabric and process for preparing
EP2058424A1 (en) * 2006-08-04 2009-05-13 Kuraray Kuraflex Co., Ltd. Stretch nonwoven fabric and tapes

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56112551A (en) * 1980-02-12 1981-09-04 Asahi Chemical Ind Flexible long fiber nonwoven fabric and method
JPS63282351A (en) * 1987-05-11 1988-11-18 旭化成株式会社 Bulky long fiber nonwoven fabric
US5382400A (en) † 1992-08-21 1995-01-17 Kimberly-Clark Corporation Nonwoven multicomponent polymeric fabric and method for making same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2211730A (en) * 1987-10-30 1989-07-12 Alan Sherick Curtain linings
GB2211730B (en) * 1987-10-30 1991-04-24 Alan Sherick Improvements in curtains
GB2235473A (en) * 1989-08-18 1991-03-06 Reifenhaeuser Masch A process for the manufacture of a web of spun fibres of thermoplastic synthetic material
US5336071A (en) * 1990-03-14 1994-08-09 Mitsui Petrochemical Industries, Ltd. Air gun for the production of non-woven fabric and non-woven fabric producing apparatus
WO2004046442A1 (en) * 2002-11-21 2004-06-03 Invista Technologies S.À.R.L. High stretch recovery non-woven fabric and process for preparing
EP2058424A1 (en) * 2006-08-04 2009-05-13 Kuraray Kuraflex Co., Ltd. Stretch nonwoven fabric and tapes
EP2058424A4 (en) * 2006-08-04 2011-05-25 Kuraray Kuraflex Co Ltd Stretch nonwoven fabric and tapes
AU2007279816B2 (en) * 2006-08-04 2013-03-07 Kuraray Co., Ltd. Stretch nonwoven fabric and tapes
US8518841B2 (en) 2006-08-04 2013-08-27 Kuraray Co., Ltd. Stretchable nonwoven fabric and tape

Also Published As

Publication number Publication date
DE2322130A1 (en) 1973-11-15
JPS492975A (en) 1974-01-11
IT985171B (en) 1974-11-30

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Legal Events

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