GB2036642A - Method for the production of waterproof and like fabrics - Google Patents

Method for the production of waterproof and like fabrics Download PDF

Info

Publication number
GB2036642A
GB2036642A GB7931079A GB7931079A GB2036642A GB 2036642 A GB2036642 A GB 2036642A GB 7931079 A GB7931079 A GB 7931079A GB 7931079 A GB7931079 A GB 7931079A GB 2036642 A GB2036642 A GB 2036642A
Authority
GB
United Kingdom
Prior art keywords
textile fabric
layers
coating
carrier element
layer
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.)
Granted
Application number
GB7931079A
Other versions
GB2036642B (en
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.)
Clemead Ltd
Original Assignee
Clemead 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 Clemead Ltd filed Critical Clemead Ltd
Priority to GB7931079A priority Critical patent/GB2036642B/en
Publication of GB2036642A publication Critical patent/GB2036642A/en
Application granted granted Critical
Publication of GB2036642B publication Critical patent/GB2036642B/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
    • 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
    • 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
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • 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
    • 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
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
    • D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
    • 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
    • B32B2262/0276—Polyester 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • 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
    • B32B2375/00—Polyureas; Polyurethanes

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

A method of producing a stretchable coated fabric having waterproof or like characteristics of particular application to the manufacture of protective clothing is proposed wherein plural layers (14a 15a 16a) of a coating material are applied to a carrier element (11) having release characteristics relative to the material of the layers, and such layers are laminated to a stretchable textile fabric (18) comprising continuous filament yarns by utilising the tension in the carrier element (11) to provide a laminating pressure. <IMAGE>

Description

SPECIFICATION Method for the production of waterproof and like fabrics The invention concerns a method for the production of coated textile fabrics, for example, waterproof and like fabrics, and has particular reference to stretchable coated fabrics.
Waterproof fabrics are known which comprise a base layer of a textile material and a layer or layers of plastics coating material laminated therewith, but such fabrics are often of doubtful effectiveness as waterproof fabrics after having been stretched, whether in use or otherwise, the presence of loops or hairs upstanding from the surface of the base material giving rise to a reduced coating thickness in register with such loops or hairs which is insufficient to maintain the integrity of the coating as a barrier to the passage of water. The problem becomes particularly acute when the fabric is stretched, since the coating tends to fail in the thin areas thereof to give discrete holes of pin-prick dimensions.
The object of the present invention is to provide a method of producing a coated fabric having stretch characteristics which will not exhibit the tendency to failure of its waterproofing or other proofing capability present in existing coated fabrics.
According to the present invention a method for the production of stretchable coated textile fabrics is proposed which comprises the steps of applying plural layers of coating material to an elongate, flexible carrier element having a release capability in relation to the coating material and transferring such plural layers to a textile fabric by transfer coating techniques, the said textile fabric being wholly of continuous filament synthetic yarns, the respective formulations of the successive layers and the application thereof to the immediately preceding layer existing on the carrier element being such that a given coating layer will fuse with the free surface and immediately adjacent parts of such preceding layer, and laminating the layers and textile fabric together by applied pressure derived from the tension of the carrier element.
According to a preferred feature, the coating layers as applied to the textile fabric are such as to impart a waterproof characteristic to the end product.
The invention also includes a coated textile fabric produced in accordance with the foregoing method.
The invention will now be described further, by way of example only, with reference to the accompanying diagrammatic drawing illustrating one embodiment thereof.
Referring to the drawing, in producing a stretchable coated fabric having a waterproof characteristic an elongate carrier layer or release paper 11 is delivered from a roll 12 and is rewound as a roll 13, and multiple layers of coating material are applied to the release paper at coating heads 14, 15, 16 arranged in spaced disposition longitudinally of the free run of such paper and adjacent the upper face thereof, there being a respective heater 17 for each coating head 14, 15 each positioned downstream thereof in the direction of paper movement, the said heaters serving to direct heated air towards the coating material thus to effect the drying or partial drying thereof.
Textile backing material 18, provided in the form of a roll 19, is brought into laminating contact with the outermost of the coating layers present on the release paper at guide roller 20, and such material 18, together with the coating layers 14a, 1 Sa, I 6a, is separated from the release paper at guide roller 21, there being a pressure roller 22 at the underside of the release paper which displaces the path of movement of such paper through the plane defined by the common tangent to the underside of guide rollers 21, 22, the laminating pressure thereby being determined by the tension applied to the release paper.
Afurther heater 23 is provided above the laminate and subsequent to guide roller 22 in the direction of laminate movement.
The release paper will be of a kind conventionally used in the art, and its surface and release characteristics will be determined by the surface texture required in the finished product and by the nature of the coating material to be carried thereby, respectively.
The coating layers will each be of an aromatic polyurethane and approximately 0.025 millimetres thick the formulations of the individual layers varying according to the particular layer concerned.
In a typical example, the first two layers applied to the release paper will each comprise 25% solids, 371/2% DMF solvent and 371/2% toluene diluent, whilst the third layer will comprise 25% solids, from 25 to 27% DMF solvent and the balance toluene diluent, the overall coating weight being 90 grams per square metre.
The textile fabric to which the plural layers are applied preferably comprises a weft knit fabric of continuous filament polyester yarns, such fabric having stretch characteristics adequate to fit the ultimate fabric for use in the context of, for example, weather-proof and protective clothing. However, other fabric constructions and other yarns may be preferred in some instances, the primary requirements of the fabric construction and/or the yarns utilised being those of a stretch characteristic in the case of the fabric and an absence of fibre ends or protruding loops in the case of the yarn.
If desired, the first and/or second coating layers as applied to the release paper may be pigmented.
We have found that by utilising continuous fila menu yearns in the fabric, by laminating without the use of a roller nip, and by so arranging that a coating layer as applied to a layer already existing on the release paper will do no more than simply fuse with the free surface and immediately adjacent parts of such layer, we are able to provide a coated fabric which maintains its waterproof characteristic even on excessive stretching, and thus is superior to coated fabrics made by conventional methods.
The invention is not restricted to the exact features of the embodiment disclosed, since alternatives will readily present themselves to one skilled in the art.
Thus, it is appreciated that alternative formula tions to those specifically referred to may be utilised, subject to their satisfying the requirement that, on application of the final coating layer the solvents present in such layer do not soften the layer first applied to the release paper (or equivalent) beyond the originai surface regions thereof. Indeed, the invention is not limited to the use of aromatic polyurethane, since alternative coating materials, for example, aliphatic urethanes, may be preferred in some instances.
Whiist it is preferred to provide three discrete layers of coating material it may be found sufficient to utilise only two such layers, and the disclosure hereof is to be construed accordingly.

Claims (15)

1. A method for the production of stretchable coated textile fabrics comprising the steps of applying plural layers of coating material to an elongate, flexible carrier element having a release capability in relation to the coating material and transferring such plural layers to a textile fabric by transfer coating techniques, the said textile fabric being wholly of continuous filament synthetic yarns, the respective formulations of the successive layers and the application thereof to the immediately preceding layer existing on the carrier element being such that a given coating layer will fuse with the free surface and immediately adjacent parts of such preceding layer, and laminating the layers and textile fabric together by applied pressure derived from the tension of the carrier element.
2. The method as claimed in claim 1, wherein the coating layers as applied to the textile fabric are such as to impart a waterproof characteristic to the end product.
3. The method as claimed in claim 1 or 2, wherein three discrete coating layers are combined together and are applied to the textile fabric.
4. The method as claimed in any one of the preceding claims, wherein at least the first of the coating layers applied to the carrier element is pigmented, thereby to provide a requisite colour characteristic in the finished product.
5. The method as claimed in any one of the preceding claims, wherein laminating pressure is applied to the contacting coating layers and textile fabric by displacing the path of the carrier element in a direction towards the said layers between spaced guide means by which the carrier layer, coating layers and textile fabric are supported and transversely of which the laminate moves.
6. The method as claimed in any one of the preceding claims including the step of partially curing each coating layer prior to the application thereto of a subsequent coating layer.
7. The method as claimed in claim 6, wherein heat is applied to each coating layer prior to the application thereto of a subsequent coating layer.
8. The method as claimed in any one of the preceding claims, including the step of heating the laminate subsequent to the application of laminating pressure thereto.
9. A stretchable coated textile fabric produced by the method of applying plural layers of coating material to an elongate, flexible carrier element having a release capability in relation to the coating material and transferring such plural layers to a textile fabric by transfer coating techniques, the said textile fabric being wholly of continuous filament synthetic yarns, the respective formulations of the successive layers and the application thereof to the immediately preceding layer existing on the carrier element being such that a given coating layer will fuse with the free surface and immediately adjacent parts of such preceding layer, and laminating the layers and textile fabric together by applied pressure derived from the tension of the carrier element.
10. A stretchable coated textile fabric as claimed in claim 9, wherein the textile fabric is of weft knitted construction.
11. A stretchable coated textile fabric as claimed in claim 9 to 10, wherein the textile fabric consists wholly of continuous filament polyester yarns.
12. A stretchable coated textile fabric as claimed in any one of claims 9 to 11, wherein the coating comprises plural layers of an aromatic polyurethane.
13. A stretchable coated textile fabric as claimed in any one of claims 9 to 11, wherein the coating comprises plural layers of an aliphatic urethane.
14. The method of producing a stretchable coated textile fabric substantially as hereinbefore described with reference to the accompanying drawing.
15. A stretchable coated textile fabric produced in accordance with the method as claimed in claim 14.
GB7931079A 1978-10-13 1979-09-07 Method for the production of waterproof and like fabrics Expired GB2036642B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7931079A GB2036642B (en) 1978-10-13 1979-09-07 Method for the production of waterproof and like fabrics

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7840583 1978-10-13
GB7931079A GB2036642B (en) 1978-10-13 1979-09-07 Method for the production of waterproof and like fabrics

Publications (2)

Publication Number Publication Date
GB2036642A true GB2036642A (en) 1980-07-02
GB2036642B GB2036642B (en) 1982-09-08

Family

ID=26269189

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7931079A Expired GB2036642B (en) 1978-10-13 1979-09-07 Method for the production of waterproof and like fabrics

Country Status (1)

Country Link
GB (1) GB2036642B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0611037A1 (en) * 1993-01-28 1994-08-17 Du Pont De Nemours International S.A. Layered product
EP0885996A1 (en) * 1996-12-10 1998-12-23 Fuji Techno Co., Ltd. Processing paper for producing wet type synthetic leather and method of its application processing
WO2010001207A1 (en) * 2008-07-04 2010-01-07 Ferrari S.A.S. Di Iannone E. Membrane for bathing costumes and the like, and process for producing said membrane

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0611037A1 (en) * 1993-01-28 1994-08-17 Du Pont De Nemours International S.A. Layered product
EP0885996A1 (en) * 1996-12-10 1998-12-23 Fuji Techno Co., Ltd. Processing paper for producing wet type synthetic leather and method of its application processing
EP0885996A4 (en) * 1996-12-10 2001-12-19 Fuji Techno Co Ltd Processing paper for producing wet type synthetic leather and method of its application processing
WO2010001207A1 (en) * 2008-07-04 2010-01-07 Ferrari S.A.S. Di Iannone E. Membrane for bathing costumes and the like, and process for producing said membrane
EP2145761A1 (en) * 2008-07-04 2010-01-20 Ferrari S.a.s. di Iannone E. Membrane for bathing costumes and the like, and process for producing said membrane

Also Published As

Publication number Publication date
GB2036642B (en) 1982-09-08

Similar Documents

Publication Publication Date Title
US4233358A (en) Method for the production of waterproof and like fabrics
US5162150A (en) Duct tape
CA1153679A (en) Method and apparatus for bonding with net-like adhesive films
US4304813A (en) Pressure sensitive tape with a warp knit and weft insertion fabric
US2485725A (en) Coated elastic fabric
US3442736A (en) Process for laminating thermoplastic particles to a surface
US6818091B1 (en) Cut and puncture resistant laminated fabric
US4003777A (en) Method of forming a laminated structure
US2823156A (en) Vinyl coated knit fabric
JPH04316682A (en) Heat-bonding coating cloth and manufacture thereof
GB2033298A (en) Laminate made from flexible materials and its manufacture
JP3651831B2 (en) Coated corrugator belt
US2787571A (en) Method of making non-woven pile fabric
US1924635A (en) Method of making alpha laminated fabric
US2722495A (en) Method for producing a vinyl coated fabric
EP3279380B1 (en) Method for making a wadding strip element comprising at least a surface adapted to receive print, and the wadding strip element made thereby, for use in paddings of clothing articles such as windcheaters and shoes
GB2036642A (en) Method for the production of waterproof and like fabrics
KR100620348B1 (en) Improved continuous process for making glittering cube corner sheeting
US5609936A (en) Drying screen for paper making machine
US3652374A (en) Nonblocking nonwoven scrim materials
IT201900005592A1 (en) METHOD FOR PRINTING A TAPE MATERIAL
CS221931B2 (en) Method of making the endless belt
US2917421A (en) Non-woven fabric
EP0733477B1 (en) Methods of forming materials for upholstery use
US4202716A (en) Wall covering and method of making same

Legal Events

Date Code Title Description
727 Application made for amendment of specification (sect. 27/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
727A Application for amendment of specification now open to opposition (sect. 27/1977)
727B Case decided by the comptroller ** specification amended (sect. 27/1977)
SP Amendment (slips) printed
PCNP Patent ceased through non-payment of renewal fee