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:
Sep. 09, 2003
Filed:
Feb. 28, 2001
Hideki Usuki, Tokyo-To, JP;
Satoshi Moriguchi, Tokyo-To, JP;
Naohiro Obonai, Tokyo-To, JP;
Hitoshi Saito, Tokyo-To, JP;
Abstract
The present invention provides a protective layer transfer sheet which, when used to thermally transfer a protective layer onto an image-receiving sheet with an image formed thereon, provides a print that does not cause cracking of the protective layer and, even when housed and stored in a vinyl chloride case containing a plasticizer or the like, does not cause the migration of a dye constituting the image to the case, that is, has excellent fastness properties. In a protective layer transfer sheet comprising a substrate sheet , a heat-resistant slip layer provided on one side of the substrate sheet , and a thermally transferable protective layer releasably provided on at least a part of the surface of the substrate sheet remote from the heat-resistant slip layer , the thermally transferable protective layer contains an epoxy resin and, in addition, contains at least one member selected from the group consisting of a butyral resin, an acrylic resin, and an ultraviolet absorber. By virtue of this construction, a protective layer is strongly adhered onto an image-receiving sheet with an image formed thereon. Further, the protective layer is strong and homogeneous, and, thus, even when the print is housed in a vinyl chloride case, the print does not cause the dye to migrate to the case, that is, has excellent plasticizer resistance.