B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/117, 154/71
B32B 29/00 (2006.01) B32B 3/28 (2006.01) B32B 5/08 (2006.01) B32B 29/02 (2006.01) D21H 13/14 (2006.01) D21H 27/20 (2006.01) D21H 27/38 (2006.01) D21H 13/10 (2006.01)
Patent
CA 1084403
ABSTRACT OF THE DISCLOSURE Sheet-type wall- or ceiling-covering is produced by laminating a first ply consisting of a paper sheet containing from 60 to 100% by weight of cellulosic fibres and from 0 to 40% by weight of discontinuous fibres of a synthetic thermoplastic polymeric material and another ply comprising a sheet containing from 10 to 60% by weight of cellulostic fibres and from 40 to 90% by weight of discontinuous fibres of the same or a different synthetic thermoplastic polymeric material and heating the laminate to a temperature at which the fibres are rendered plastic and fuse together to form a three dimensional network and either simultaneously or subsequently embossing the hot laminate. The covering is dry-strippable, is more easily embossed and exhibits improved emboss retention compared with conventional wallpaper bases. The paper sheet may be coated with polyvinyl chloride coverings having a very deep emboss can be produced at much lower cost than conventional coverings based on polyvinyl chloride coated paper.
275192
Burton Arthur
Conway Roy
Imperial Chemical Industries Limited
Roussin Bernard F.
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