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:
Jun. 23, 1987
Filed:
Apr. 05, 1985
Toray Industries, Inc., Tokyo, JP;
Abstract
An ink transfer material for printers which comprises a biaxially oriented polyester film and a transfer ink layer deposited on one side of the polyester film, the biaxially oriented polyester film having a thickness in the range of 1 to 15.mu., an F-5 value in the longitudinal direction in the range of 11 to 16 kg/mm.sup.2, a refractive index in each of the longitudinal and lateral directions in the range of 1.650 to 1.675, and a birefringence of not more than 0.02, and the rough surface having a center line average height thereof in the range of 0.02 to 1.mu. and a maximum height in the range of 0.2 to 10.mu.. This ink transfer material has no disadvantage such as longitudinal tear, plastic deformation, or thermal shrinkage. Thus, it is highly useful in thermal transfer printers and impact printers.