GB1464223A - Polyurethane-coated leather-like sheet materials - Google Patents

Polyurethane-coated leather-like sheet materials

Info

Publication number
GB1464223A
GB1464223A GB2125275A GB2125275A GB1464223A GB 1464223 A GB1464223 A GB 1464223A GB 2125275 A GB2125275 A GB 2125275A GB 2125275 A GB2125275 A GB 2125275A GB 1464223 A GB1464223 A GB 1464223A
Authority
GB
United Kingdom
Prior art keywords
coating
fibres
finish
glycol
polyurethane
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
GB2125275A
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.)
Kuraray Co Ltd
Original Assignee
Kuraray Co 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 Kuraray Co Ltd filed Critical Kuraray Co Ltd
Publication of GB1464223A publication Critical patent/GB1464223A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D06N3/145—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes two or more layers of polyurethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Abstract

1464223 Polyurethane-coated leather-like material KURARAY CO Ltd 19 May 1975 [25 May 1974] 21252/75 Heading B2E A leather-like sheet material for making shoes comprises a substrate of polyurethaneimpregnated fibrous mat, a first coating layer of porous structure composed of a polyestertype polyurethane elastomer, and a second (or finish) coating layer formed by coating with a solution composed mainly of a polyestertype polyurethane elastomer obtained by reacting an organic diisocyanate, a linear or branched aliphatic or an alicyclic polyether glycol of molecular weight 500-4000 and derived from a C 4-14 glycol, and a lowmolecular weight compound having two active hydrogen atoms as a chain extender (particularly an aliphatic or aromatic glycol or diamine) so that the content of nitrogen atoms derived from the isocyanate groups is 3.7- 8.0% by weight, the finish-coating layer having a dry solid thickness of 3-30 microns. The substrate may be a non-woven, woven or knitted fabric of nylon-6, polyester, polyacrylonitrile, polyvinyl alcohol, regenerated cellulose, cotton, wool, polystyrene/nylon-6 or polyethylene/polyethylene terephthalate fibres. The fibres may also be "oriented multi-hole fibres" (i.e. fibres having a cross-section in which a number of holes appear) or "fine-denierbundle fibres" (i.e. fibres composed of a bundle of c.300 fibres of 0.01-0.0001 denier, the bundle being less than 0.5 denier thick). The first coating may be applied to the impregnated (and possibly coagulated) fabric as a solution followed either by immersion of the coated fabric in a non-solvent such as water to coagulate the coating or by evaporation of the solvent. The porosity of the first coating may be controlled by means of a coagulation-regulating agent (a number of which are specified) and the coating may be 0.1-0.5 mm thick. It may be embossed or coloured prior to application of the finish coating. The latter may particularly comprise a polyurethane derived from polytetramethylene ether glycol, p, p'-diphenyl-methane diisocyanate and 1, 4-butane diol or ethylene glycol but a number of other polyether glycols, diisocyanates and chain extenders are also specified. The finish coating, which may be non-porous, is applied by knife, roller or spray coating, gravure printing or by transfer coating using a release support such as a glass sheet, metal plate or a polyester or polyethylene film. A colouring agent may be incorporated in the finish coating or coloured and non-coloured layers may be applied alternately. The product may be further coated or may be embossed with a pattern.
GB2125275A 1974-05-25 1975-05-19 Polyurethane-coated leather-like sheet materials Expired GB1464223A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5911174A JPS578912B2 (en) 1974-05-25 1974-05-25

Publications (1)

Publication Number Publication Date
GB1464223A true GB1464223A (en) 1977-02-09

Family

ID=13103862

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2125275A Expired GB1464223A (en) 1974-05-25 1975-05-19 Polyurethane-coated leather-like sheet materials

Country Status (2)

Country Link
JP (1) JPS578912B2 (en)
GB (1) GB1464223A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0134635A2 (en) * 1983-07-12 1985-03-20 Toray Industries, Inc. Artificial grain leather
EP0617159A2 (en) * 1993-03-25 1994-09-28 Kuraray Co., Ltd. Highly flexible leather-like sheet material and process for producing the same
WO2015118395A1 (en) * 2014-02-05 2015-08-13 Cartina S.R.L. Method for milling sheets of fabric
CN112501918A (en) * 2021-01-11 2021-03-16 禾欣可乐丽超纤皮(嘉兴)有限公司 Novel method for adjusting micropores of microfiber base cloth membrane by polyurethane wet method
CN112593325A (en) * 2020-12-04 2021-04-02 江苏金太阳纺织科技股份有限公司 Preparation method of woven leather-like soft mat fabric

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56112579A (en) * 1980-02-08 1981-09-04 Kohkoku Chem Ind Synthetic leather for heat press mold
JPS5959503U (en) * 1982-10-13 1984-04-18 カヤバ工業株式会社 Hydraulic cylinder cushioning device
CN110117912B (en) * 2019-04-08 2021-08-17 温州大学 Waterborne polyurethane for microfiber bass

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2402799C3 (en) * 1974-01-22 1978-11-30 Bayer Ag, 5090 Leverkusen Process for coating textiles with polyurethanes using the reverse process

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0134635A2 (en) * 1983-07-12 1985-03-20 Toray Industries, Inc. Artificial grain leather
EP0134635A3 (en) * 1983-07-12 1985-11-27 Toray Industries, Inc. Artificial grain leather
EP0617159A2 (en) * 1993-03-25 1994-09-28 Kuraray Co., Ltd. Highly flexible leather-like sheet material and process for producing the same
EP0617159A3 (en) * 1993-03-25 1999-10-27 Kuraray Co., Ltd. Highly flexible leather-like sheet material and process for producing the same
WO2015118395A1 (en) * 2014-02-05 2015-08-13 Cartina S.R.L. Method for milling sheets of fabric
CN112593325A (en) * 2020-12-04 2021-04-02 江苏金太阳纺织科技股份有限公司 Preparation method of woven leather-like soft mat fabric
CN112593325B (en) * 2020-12-04 2022-01-25 江苏金太阳纺织科技股份有限公司 Preparation method of woven leather-like soft mat fabric
CN112501918A (en) * 2021-01-11 2021-03-16 禾欣可乐丽超纤皮(嘉兴)有限公司 Novel method for adjusting micropores of microfiber base cloth membrane by polyurethane wet method
CN112501918B (en) * 2021-01-11 2022-06-24 禾欣可乐丽超纤皮(嘉兴)有限公司 Novel method for adjusting micropores of microfiber base cloth membrane by polyurethane wet method

Also Published As

Publication number Publication date
JPS50148505A (en) 1975-11-28
JPS578912B2 (en) 1982-02-18

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Legal Events

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