Image forming method

Patent metadata

Field	Value
Publication number	US-9944105-B2
Application number	US-201615353831-A
Country	US
Kind code	B2
Filing date	Nov 17, 2016
Priority date	Nov 18, 2015
Publication date	Apr 17, 2018
Grant date	Apr 17, 2018

Abstract

An image forming method including preparing a thermal transfer sheet having a dye layer on a substrate, the dye layer containing a sublimable dye, preparing a decorative seal having a seal base material on a release sheet, the seal base material having a layered structure of an adhesive layer and a film layered in this order from the release sheet side, the film containing a resin having a dyeing affinity to the sublimable dye contained in the dye layer, and the film having an elongation percentage of not less than 150% and not more than 400% when determined by a test method in conformity with JIS-K-7127:1999, and thermally transferring the sublimable dye in the dye layer onto the seal base material by sublimation thermal transfer process, thereby forming a thermal transfer image on the seal base material.

First claim

The invention claimed is:

1. An image forming method, comprising steps of:
preparing a thermal transfer sheet comprising a dye layer formed on a substrate, the dye layer containing sublimable dye;
preparing a decorative seal comprising a seal base material releasably provided on a release sheet, the seal base material having a layered structure comprising an adhesive layer and a film layered in this order from the release sheet side, the film containing a resin having a dyeing affinity to the sublimable dye contained in the dye layer, and the film having an elongation percentage in a range of not less than 150% and not more than 400% when determined by a test method in conformity with JIS-K-7127:1999; and
thermally transferring the sublimable dye in the dye layer of the thermal transfer sheet onto the seal base material of the decorative seal by a sublimation type thermal transfer process, thereby forming a thermal transfer image on the seal base material.

2. The image forming method according to claim 1 , wherein the film contains a vinyl chloride resin as the resin having the dyeing affinity to the sublimable dye.

3. The image forming method according to claim 1 , wherein the film has a thickness of being in the range of not less than 20 μm and not more than 60 μm.

Assignees

• Dainippon Printing Co Ltd

Inventors

• Uehara Shun
• Yamashita Hiroyuki

Classifications

• H10W74/01

  Manufacture or treatment · CPC title

• B41M5/38257

  characterised by the use of an intermediate receptor · CPC title

• H01L21/56

  Electricity · mapped topic

• B41M5/38228

  characterised by the use of two or more ink layers · CPC title

• B41M5/44

  characterised by the macromolecular compounds · CPC title