B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
117/168
B05D 5/10 (2006.01) B44C 7/00 (2006.01) C08L 3/02 (2006.01) D06N 7/00 (2006.01)
Patent
CA 1075981
PROCESS FOR MAKING PREPASTED VINYL WALL COVERING Abstract of The Disclosure Fabric backed vinyl wall covering containing a dry, water activatable paste surface is made by the following process. The cotton-scrim backed vinyl wall covering is printed in a conventional manner. Immediately after the design is printed onto the fabric backed vinyl, an adhesive coating is applied. The coating, which is applied, com- prises 100 parts of pregelatinized starch particles having a dry particle size of less than 250 microns, 10 to 35 parts of an organic polymer and 100 to 300 parts of a volatile organic liquid which is a solvent for the organic polymer and a non-solvent for the pregelatinized starch. The organic liquid is vaporized by heating. The resulting product is a vinyl wall covering containing a dried adhesive surface. In order to activate the adhesive surface, it is only necessary to wet the same. Due to the fact that little, if any, water is present in the initial adhesive application process, the fabric backing does not shrink during the manufacturing process. Nonuniform shrinking of the fabric backing interferes with adjacent edge matching and pattern matching of the wall covering when it is used.
259565
Sapak James G.
Windham Dalton
LandOfFree
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