Polymer-coated fabric
AssigneeTrelleborg Nottingham Limited
InventorsRichard Haxby, Ilias Alexandrakis
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Abstract
Waterproof composite fabrics comprising a textile layer and a continuous polymer layer that comprises adjoining first and second regions with different physical or visual properties, and knife-over-roll coating methods for 5 manufacturing said composite fabrics. The waterproof composite fabrics described are particularly suitable for covering medical support surfaces, for instance mattresses.
Claims27
A waterproof composite fabric comprising a textile layer and a continuous polymer layer, the polymer layer comprising adjoining first and second regions that have different physical or visual properties, the first and second regions being in a side-by-side arrangement extending longitudinally along a length of the fabric, the first region being formed from a first polymer composition and the second region being formed from a second polymer composition.
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A method of knife-over-roll coating for the manufacture of a waterproof composite fabric comprising a textile layer and a continuous polymer layer, said polymer layer comprising adjoining first and second regions that have different physical or visual properties, the first and second regions being in a side-by-side arrangement extending longitudinally along a length of the fabric, the first region being formed from a first polymer composition and the second region being formed from a second polymer composition, the method comprising simultaneously applying the first and second polymer compositions to a substrate, before the substrate is moved by the rotation of a support roller beneath a knife.
A method of knife-over-roll coating for making a waterproof composite fabric comprising a textile layer and a continuous polymer layer, the polymer layer comprising adjoining first and second regions that have different physical or visual properties, the first and second regions being in a side-by-side arrangement extending longitudinally along a length of the fabric, the first region being formed from a first polymer composition and the second region being formed from a second polymer composition, the method comprising:
- a) simultaneously applying the first and second polymer compositions to a carrier to form a polymer composition layer, before the substrate is moved by a support roller beneath a knife;
- b) applying a textile substrate to the surface of polymer composition layer produced in step a) such that the polymer compositions bond to the textile;
- c) removing the carrier.
Dependencies are inferred from the claim text.