Thermal transfer sheet, combination of thermal transfer sheet and intermediate transfer medium, method for producing print, and thermal transfer printer

Patent metadata

Field	Value
Publication number	US-11697299-B2
Application number	US-201916765267-A
Country	US
Kind code	B2
Filing date	Jan 31, 2019
Priority date	Jan 31, 2018
Publication date	Jul 11, 2023
Grant date	Jul 11, 2023

Abstract

Provided are a combination of a thermal transfer sheet and an intermediate transfer medium which is capable of accurately transferring only a transfer layer of the intermediate transfer medium desired to be transferred onto a transfer receiving article in the production of a print, and a thermal transfer sheet which is used in combination with an intermediate transfer medium. Also provided are a method for producing a print, comprising accurately transferring only a transfer layer of an intermediate transfer medium desired to be transferred onto a transfer receiving article, and a thermal transfer printer which is used in this method for producing a print. In the thermal transfer sheet which is used in combination with an intermediate transfer medium, inhibit layer 2 is disposed on substrate 1, and the inhibit layer 2 contains a carnauba wax.

First claim

The invention claimed is:

1. A combination of a thermal transfer sheet and an intermediate transfer medium,
wherein the thermal transfer sheet comprises an inhibit layer disposed on a substrate so as to be peelable from the substrate,
wherein the inhibit layer can be transferred onto the intermediate transfer medium,
wherein the inhibit layer contains at least one member selected from the group consisting of a cured product of an active ray-curable resin, a cured product of a silicone resin, and a cured product of a thermoplastic resin,
wherein the intermediate transfer medium comprises a transfer layer disposed on a support,
wherein a release layer is disposed between the support and the transfer layer, and
wherein the release layer contains silsesquioxane.

2. A combination of a thermal transfer sheet and an intermediate transfer medium,
wherein the thermal transfer sheet comprises an inhibit layer disposed on a substrate so as to be peelable from the substrate,
wherein the inhibit layer can be transferred onto the intermediate transfer medium,
wherein the inhibit layer contains a carnauba wax,
wherein the intermediate transfer medium is an intermediate transfer medium in which a transfer layer is disposed on a support, the transfer layer having a single-layer configuration consisting of a receiving layer, or having a layered configuration where a receiving layer is positioned furthest from the support,
wherein a release layer is disposed between the support and the transfer layer,
wherein the release layer contains silsesquioxane,
wherein the release layer further contains urethane-modified polyester having a glass transition temperature (Tg) of 50° C. or lower, and
wherein the inhibit layer further contains a polyethylene wax and a thermoplastic elastomer.

3. A combination of a thermal transfer sheet and an intermediate transfer medium,
wherein the thermal transfer sheet comprises an inhibit layer disposed on a substrate so as to be peelable from the substrate,
wherein the inhibit layer can be transferred onto the intermediate transfer medium,
wherein the inhibit layer contains a carnauba wax,
wherein the intermediate transfer medium comprises a transfer layer is-disposed on a support, the transfer layer having a single-layer configuration consisting of a receiving layer, or having a layered configuration where a receiving layer is positioned furthest from the support,
wherein a release layer is disposed between the support and the transfer layer, and
wherein the release layer contains silsesquioxane.

4. The combination of a thermal transfer sheet and an intermediate transfer medium according to claim 3 , wherein at least one of a dye layer and a heat-seal layer, and the inhibit layer are sequentially disposed on a surface of the substrate.

5. The combination of a thermal transfer sheet and an intermediate transfer medium according to claim 4 , wherein the dye layer, the inhibit layer, and the heat-seal layer are sequentially disposed on the surface of the substrate.

6. The combination of a thermal transfer sheet and an intermediate transfer medium according to claim 4 , wherein the dye layer, the heat-seal layer, and the inhibit layer are sequentially disposed on the surface of the substrate.

7. The combination of a thermal transfer sheet and an intermediate transfer medium according to claim 3 , wherein the transfer layer comprises a layered structure where a protective layer and the receiving layer are layered in the presented order from the support side, and
wherein the protective layer contains a cured product of an active ray-curable resin.

8. A method for producing a print using a combination of a thermal transfer sheet and an intermediate transfer medium according to claim 3 ,
the method comprising:
the step of forming a thermal transfer image on the transfer layer of the intermediate transfer medium;
a first transfer step of transferring the inhibit layer of the thermal transfer sheet onto a part of the transfer layer with the thermal transfer image formed thereon; and
a second transfer step of transferring the transfer layer of the intermediate transfer medium onto a transfer receiving article,
wherein the second transfer step is the step of using the inhibit layer transferred onto a part of the transfer layer as a masking member, and transferring the transfer layer having no overlap with the inhibit layer onto the transfer receiving article.

Assignees

• Dainippon Printing Co Ltd

Inventors

• Imakura Yoshihiro
• Kuroda Koichiro

Classifications

• B41M2205/38

  Intermediate layers; Layers between substrate and imaging layer · CPC title

• B41M5/405

  characterised by layers cured by radiation (layers cured after recording B41M7/0072) · CPC title

• B41M2205/30

  Thermal donors, e.g. thermal ribbons · CPC title

• B41M5/443

  Silicon-containing polymers, e.g. silicones, siloxanes · CPC title

• B41M5/44

  characterised by the macromolecular compounds · CPC title