Foam plastics sheet material

B - Operations – Transporting – 32 – B

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117/61, 18/641

B32B 5/20 (2006.01) D06N 3/00 (2006.01) D06N 7/00 (2006.01)

Patent

CA 1147116

Crown 3 C/W FOAM PLASTICS SHEET MATERIAL ABSTRACT OF THE DISCLOSURE A foam plastics sheet material, such as a wallcovering, comprises a substrate web, a printed pattern, or overall coat- ing, and a foamable coating. The print composition includes an organic pigment and the foamable. coating is selected to provide a migration path for the pigment. The degree of migration is dependent upon the foam thickness and hence graduated colour tones can be derived from a single printing by control of foam thickness. In preferred process, the foam thickness control is obtained by pre-embossing the substrate web. The print pattern or overall coating can include a foaming agent.

331703

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