Method of producing a coated fabric
AssigneeTissage Et Enduction Serge Ferrari SA
InventorSerge Ferrari
Life of this patent
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Abstract
A method for producing a coated woven fabric, in which the support material comprises disintegrable chemical weft threads which are subsequently removed without the other threads being affected, method wherein: a first support fabric is produced of which only part of the weft threads are disintegrable, and in a weave in which said disintegrable weft thread is so arranged that, were it to be removed, the result would be, not a woven fabric any longer, but a superposition of three criss-crossed layers of parallel warp threads, one layer of weft threads being squeezed between two layers of warp threads, respectively; then, said support fabric is coated with a coating composition; and finally, the deposited coating is gelled in the right temperature conditions to remove the disintegrable weft thread.
Claims14
An improved method of producing a coated fabric, in which the support material comprises disintegrable chemical weft threads which are subsequently removed during the coating step without the other threads being affected, the method comprising:
- producing a woven support fabric in which some of the weft threads are disintegrable, said disintegrable weft threads being so arranged in said fabric that, were they to be removed, the result would no longer be a woven fabric, but a superposition of three orthogonally criss-crossed layers of parallel threads comprised of one layer of weft threads squeezed between two layers of warp threads;
- coating said woven support fabric with a coating composition of substantially the same chemical composition as the disintegrable threads;
- and gelling the deposited coating under temperature conditions which will melt said disintegrable weft threads and cause them to fuse with the coating.
A method for producing a coated fabric, comprising:
- producing a plurality of weft threads comprised of a disintegrable material;
- producing a plurality of weft threads comprised of a non-disintegrable material;
- producing a plurality of warp threads comprised of a non-disintegrable material;
- weaving a support fabric from said warp and weft threads wherein said disintegrable weft threads are interspersed among said non-disintegrable weft threads such that, if said disintegrable weft threads were removed:
- (a) said warp threads would be disposed substantially in parallel in two substantially parallel layers, but with the threads in one layer laterally shifted relative to the threads in the other layer;
- and
- (b) said non-disintegrable weft threads would be disposed substantially in parallel in a middle layer pressed between the two layers of warp threads, with the weft threads substantially orthogonal to the warp threads;
- coating said support fabric with a coating composition comprised of substantially the same material as said disintegrable weft threads;
- heating the coated support fabric at a temperature which will melt said disintegrable weft threads, fuse the coating composition and melted threads together, and gel the fused coating composition and melted threads.
A coated material produced according to the process comprising:
- producing a plurality of weft threads comprised of a disintegrable material;
- producing a plurality of weft threads comprised of a non-disintegrable material;
- producing a plurality of warp threads comprised of a non-disintegrable material;
- weaving a support fabric from said warp and weft threads wherein said disintegrable weft threads are interspersed among said non-disintegrable weft threads such that, if said disintegrable weft threads were removed:
- (a) said warp threads would be disposed substantially in parallel in two substantially parallel layers, but with the threads in one layer laterally shifted relative to the threads in the other layer;
- and
- (b) said non-disintegrable weft threads would be disposed substantially in parallel in a middle layer pressed between the two layers of warp threads, with the weft threads substantially orthogonal to the warp threads;
- coating said support fabric with a coating composition comprised of substantially the same material as said disintegrable weft threads;
- heating the coated support fabric at a temperature which will melt said disintegrable weft threads, fuse the coating composition and melted threads together, and gel the fused coating composition and melted threads.
Dependencies are inferred from the claim text.