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:
Aug. 15, 1995
Filed:
Aug. 28, 1992
Applicant:
Inventors:
Assignee:
Imperial Chemical Industries, PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428195 ; 428204 ; 428207 ; 428323 ; 428688 ; 428913 ; 428914 ;
Abstract
An ink sheet for making thermal transfer colour recordings, with practically acceptable high speed and high resolution using a semiconductor laser beam, comprises a support film coated with an opto-thermal conversion layer to generate heat by absorbing the laser beam, and an overlying thermal melt transfer ink layer, wherein the opto-thermal conversion layer is 5 .mu.m thick or less, and in the wavelength region of 700 nm to 900 nm has a laser beam transmittance of 5% or less.