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:
Mar. 03, 1981
Filed:
Nov. 09, 1978
Letraset USA Inc., Bergenfield, NJ (US);
Abstract
Transfer material is prepared by applying to a substrate a layer of a photosensitive material which is insoluble but swellable in the solvent used to develop the image and whose adhesion to the substrate increases on exposure to light, imagewise exposing the material and developing the so-exposed material by treatment with a solvent fully to remove unexposed material from the substrate and, if necessary, treating the remaining areas of the exposed material to render them transferable from the substrate. In this manner the full thickness of the photosensitive material layer may be retained in the final transfer material. In particular, adhesive material may be applied to the layer photosensitive material before imagewise exposure, and the adhesive coated material imagewise exposed and developed to remove photosensitive material and adhesive in the non-exposed areas only to leave adhesive coated image indicia.