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. 21, 1990
Filed:
Aug. 19, 1988
Applicant:
Inventor:
Albert Schmedes, Pattensen, DE;
Assignee:
Pelikan Aktiengesellschaft, Hanover, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41M / ;
U.S. Cl.
CPC ...
427148 ; 427146 ; 428195 ; 428207 ; 428484 ; 4284881 ; 428914 ; 428913 ; 400120 ; 400241 ; 106271 ;
Abstract
A method of making a thermal-transfer ribbon for thermal printing in which an aqueous dispersion of the thermoplastic binder substance, a fat-soluble dyestuff and a wax or waxlike substance is formed. The dispersion is coated onto a foil or other carrier for the ribbon and water is evaporated. The coating is then subjected to a thermal treatment to melt the wax and dissolve the dyestuff therein prior to thermotransfer to a substrate.