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US 4,764,395 AGranted
Process for finishing a textile fabric with a radiation crosslinkable compound
AssigneeCiba-Geigy Corporation
InventorsBruno Felder, Jean-Pierre Feron
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AssigneeCiba-Geigy Corporation
InventorsBruno Felder, Jean-Pierre Feron
Estimating the term…
A process for finishing a textile fabric by coating the fabric with a compound which is crosslinkable by reaction-initiation radiation, exposing the back of the coated material to reaction-initiating radiation to induce crosslinking of said compound exposed through the fabric web, and removing the non-crosslinked compound. In accordance with the process of the present invention, the individual threads of the fabric act as a screen, so that crosslinking of the radiation-sensitive compounds by irradiation can only take place between the threads and not inside them, i.e. it takes place between the fibrils. This results in a differentiated porosity. The water resistance of the treated fabric is improved due to the crosslinking between the threads.
A process for finishing a textile fabric, which process comprises coating in a thin layer on the face of textile fabrics at least one compound which is crosslinkable by reaction-initiating radiation, then exposing the back of said fabric to reaction-initiating radiation to induce crosslinking of said compound exposed through the fabric web, and removing the non-crosslinked compound.
A process for finishing textile fabric which comprises coating in a thin layer on the surface of the fabric at least one compound which is crosslinkable by reaction-initiating radiation, said compound being a linear polymer of polyvinyl alcohol, epoxy resins advanced at the chain with terminal epoxide groups, acrylate/methacrylate copolymers or butadiene-acrylonitrile copolymers, each of which polymer contains as crosslinkable components either terminal vinyl groups or side groups of styrene-pyridinium, acrylamide or dimethylmaleimide then exposing the back of said fabric to reaction-initiating radiation to induce crosslinking of said compound exposed throght the fabric web and removing the non-crosslinking compound.
Dependencies are inferred from the claim text.