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:
Apr. 16, 1996
Filed:
Sep. 26, 1994
Ricoh Electronics, Inc., Santa Ana, CA (US);
Abstract
A linerless thermal label is produced by disposing a thermosensitive layer into a substrate and allowing the thermosensitive layer to dry, said thermosensitive layer comprising a color former causing the thermosensitive layer to remain color stable. A protective layer is applied on top of the thermosensitive layer and exposes the protective layer to a temperature and a time sufficient to dry the protective layer but not cause the thermosensitive layer to a change color. A heat curable silicone mixture is disposed on said protective layer and thereafter cured to form a release layer without causing color change in the thermosensitive layer. A pressure-sensitive adhesive is applied on an opposite side of the substrate which is exposed to a temperature for a time sufficient to dry the pressure-sensitive adhesive without causing color change in the thermosensitive layer, and the substrate is then rolled in a manner causing the pressure-sensitive adhesive to contact the release layer.