Patent ID: 6649234
Filing Date: 2003-11-18
Classification: B41M,C01F,C01P,C08K

Abstract:
A recording medium, comprising an alumina hydrate in an ink-receiving layer provided on a substrate, said alumina hydrate having a pore radius maximum N2 in its pore radius distribution and being obtained by subjecting to a secondary treatment a raw alumina hydrate having a pore radius maximum N1 in its pore radius distribution,wherein N2 is less than N1, N2 is within a range of from 90 to 120 Ã¥, and after the secondary treatment the total volume of all pores having radii not exceeding 50 Ã¥ in the pore radius distribution of the alumina hydrate in the ink-receiving layer is not more than 6.0% of the total volume of all pores in the pore radius distribution of the alumina hydrate in the ink-receiving layer.