Thermal transfer image-receiving sheet and process for producing the same

• US 5,587,352 A
• Filed: 04/10/1995
• Issued: 12/24/1996
• Est. Priority Date: 11/30/1992
• Status: Expired due to Term

• Current Assignee: Dai Nippon Printing Company Limited
• Original Assignee: Dai Nippon Printing Company Limited
• Inventors: Tsuchiya, Mitsura, Tamura, Yoshihiko
• Primary Examiner(s): Hess, B. Hamilton
• Application Number:
  US08/419,468
• Time in Patent Office: 624 Days
• Field of Search: 8/471, 428/195, 428/447, 428/913, 428/914, 503/227, 427/146
• US Class Current: 503/227
• CPC Class Codes: B41M 5/5254 characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
• CPC Class Codes: B41M 5/529 characterised by the use of fluorine- or silicon-containing organic compounds
• CPC Class Codes: C08L 2666/28 Non-macromolecular organic substances
• CPC Class Codes: C08L 83/00 Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
• CPC Class Codes: C09D 183/04 Polysiloxanes
• CPC Class Codes: Y10S 428/913 Material designed to be responsive to temperature, light, moisture
• CPC Class Codes: Y10S 428/914 Transfer or decalcomania
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane

Abstract

A thermal transfer image-receiving sheet having a dye-receiving layer, which is excellent in reaction rate of a release agent, coating strength of a release layer and releasability from a thermal transfer sheet. The thermal transfer image-receiving sheet comprises a substrate sheet and a dye-receiving layer provided on at least one surface of the substrate sheet, wherein the dye-receiving layer contains a release agent mixture comprising an addition-polymerizable silicone and a hydrogen-modified silicone or wherein the dye-receiving layer has on its surface a release layer comprising an addition-polymerizable silicone and a hydrogen-modified silicone. The present invention relates also to a process for producing the above thermal transfer image-receiving sheets.

Claims

1. A process for producing a thermal transfer image-receiving sheet, comprising the step of coating a coating solution containing a dye-receiving resin on at least one surface of a substrate sheet to form a dye-receiving layer, wherein said coating solution contains a release agent mixture comprising an addition-polymerizable silicone and a hydrogen-modified silicone.

2. A process for producing a thermal transfer image-receiving sheet according to claim 1, wherein said coating solution containing a release agent contains a resin binder.

3. A process for producing a thermal transfer image-receiving sheet according to claim 2, wherein said coating solution further contains a curing catalyst.

4. A process for producing a thermal transfer image-receiving sheet according to claim 1, wherein said coating solution further contains a curing catalyst.

5. A process for producing a thermal transfer image-receiving sheet, comprising the steps of:

forming a dye-receiving layer on at least one surface of a substrate sheet and then coating a coating solution containing a release agent on said dye-receiving layer to form a release layer, wherein said release agent comprises a mixture of an addition-polymerizable silicone with a hydrogen-modified silicone.

6. A process for producing a thermal transfer image-receiving sheet according to claim 5, wherein said coating solution containing a release agent contains a resin binder.

7. A process for producing a thermal transfer image-receiving sheet according to claim 5, wherein said coating solution further contains a curing catalyst.