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:
Nov. 02, 1999
Filed:
Feb. 06, 1997
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A multi-color heat-sensitive recording material including a support and two or more heat-sensitive recording layers formed on the support, wherein the support is a sheet-like substrate formed such that a resin layer is formed at least on the side of a base paper where the heat-sensitive recording layers are formed, and the surface of the sheet-like substrate on the side where the heat-sensitive recording layers are formed has a three-dimensional surface roughness of not more than 0.3 .mu.m as measured at a filter wavelength of 0.8 to 2.5 mm before thermal recording is performed. The three-dimensional surface roughness of the sheet-like substrate is not more than 0.4 .mu.m as measured at a filter wavelength of 0.8 to 2.5 mm after thermal recording is performed. The support is constructed of a sheet-like substrate having a resin layer on each of base paper. The rigidity of the sheet-like substrate as defined by JIS P8125 is 1.5 to 8.0 gf.multidot.cm, preferably 3.0 to 6.0 gf.multidot.m, as measured in a printing direction. Rigidity is adjusted by suitably selecting the thickness of the base paper, the basis weight, the kind of pulp, the thickness of the resin layer, etc.