Patent ID: 6616808
Filing Date: 2003-09-09
Classification: B41M,D21H,Y10T

Abstract:
An inkjet printing paper of noncoated type having no ink receiving layer and produced from pulp through a paper machine,wherein said pulp consists of 100% of waste paper pulp, said paper comprises filler, which has calcium carbonate, contains ash of 10 to 30 weight % as defined in JIS P 8128, and has Stockigt sizing degree of 0.001 to 0.028 sec/g/m2 according to JIS P 8122, and wherein, on an X-ray image obtained from area-analysis with an energy-distributed X-ray microanalyzer for a surface of an inkjet printing paper, area of white part, which indicates the presence of the calcium carbonate, is 3 to 40% of the total area of said X-ray image.