Patent ID: 8465800
Filing Date: 2013-06-18
Classification: D06N,D06P,Y10T

Abstract:
1. A process for the production of a leather sheet, which comprises the steps of: (i) forming a porous layer of an elastic polymer (1) on a fibrous substrate, wherein (i-a) the porous layer is formed by applying a solution of the elastic polymer (1) in an organic solvent onto the substrate and then removing the solvent by a dry method or a wet method, or (i-b) the porous layer is formed by applying a solution of the elastic polymer (1) containing thermally expandable capsules or inert gas onto the substrate, (ii) removing a surface layer of the porous layer by applying a solvent onto the surface of the porous layer, to form open pores in the range of 100 to 3,000 per cm (iii) forming an image comprising a pigment ink on the porous layer surface provided with the open pores, by an inkjet printing method.