The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 15, 2002
Filed:
Jul. 21, 1998
Mitsubishi Paper Mills Limited, Tokyo, JP;
Abstract
The present invention provides an ink jet recording sheet excellent in ink absorption properties, surface gloss, transparency and color of recorded images. The ink jet recording sheet has a gloss like photographic papers and has a high transparency, and can be used as OHP films. In this ink jet recording sheet, an ink receiving layer containing a pseudo-boehmite alumina hydrate and a binder is provided on a support, the ratio of a pore volume of the pores having a radius of 13 nm or more and less than 50 nm to a pore volume of the pores having a radius of 3 nm or more and less than 13 nm is 0.3-0.9 or the pore volume of the pores having a radius of 13 nm or more and less than 50 nm is 0.1-0.5 ml/g. Furthermore, the ink receiving layer has a surface pH of 4.0-5.4.