| 摘要 |
A decorative wallcovering in roll form of the kind that is applied to the wall with adhesive, has a strength giving substrate ply (10), a mechanically foamed ply (11) having open and closed pores (13) with a decorative effect (12) on its exposed surface. A diffusion porous toughened surface (14) and print hold-out coat (15) is preferably provided before a printed decorative effect is applied. The print (12) may be hostile to the foam so long as the print application and drying is performed quickly. Texture effect can be achieved by selecting a substrate which has a degree of preferential absorption of one of the constituents of the foam in selected regions.
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