Patent ID: 6783817
Filing Date: 2004-08-31
Classification: B41M,Y10T

Abstract:
An ink jet recording sheet, comprising a substrate comprising a base paper sheet and at least a front polyolefin laminate layer formed by extrusion-laminating a polyolefin resin composition on at least a front surface of the base paper sheet, the surface of the front polyolefin laminate layer being finely roughened and exhibiting a center-line mean roughness (Ra) or 0.1 to 10 &mgr;m, determined in accordance with Japanese Industrial Standard B0601-1982; and an ink receiving layer formed on a surface of the polyolefin laminate layer of the substrate, and comprising a mixture of hydroxypropylmethyl cellulose with polyvinyl pyrrolidone in a mixing weight ratio of 100:10 to 100:150, the surface of the ink receiving layer exhibiting a 75Â° specular glossiness of 30% or more, determined in accordance with Japanese Industrial Standard P8142-1993,(1) wherein a front-side intermediate layer comprising at least one polymeric material selected from the group consisting of gelatin, polyvinyl alcohol and cation-modified polyvinyl alcohols, is formed between the polyolefin laminate layer of the substrate and the ink receiving layer, and (2) the ink receiving layer formed on the front-side intermediate layer exhibits an ink absorption capacity of 1.5 ml/g or more, but less than 10 ml/g, and the front-side intermediate layer exhibits an ink absorption capacity of 0.1 ml/g or more but less than 1.5 ml/g.