Heat transfer film and organic electroluminescent element manufactured using same
US-2015375551-A1 · Dec 31, 2015 · US
Thermal transfer sheets
US9956802B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9956802-B2 |
| Application number | US-201615393422-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 29, 2016 |
| Priority date | Jan 6, 2016 |
| Publication date | May 1, 2018 |
| Grant date | May 1, 2018 |
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- Title
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Abstract
Official abstract text for this publication.
The thermal transfer sheet according to the present invention that has in the order mentioned, a substrate, a release layer, a colored layer, and an adhesion layer; and is characterized in that the colored layer contains a colorant and a polyester-based resin; the adhesion layer contains a polyester-based resin; a ratio of the thickness of the release layer to the total thickness of the colored layer and the adhesion layer (the thickness of the release layer/(the thickness of the colored layer+the thickness of the adhesion layer)) is not less than 2/3 and not more than 3/2; and the total thickness of the release layer, the colored layer, and the adhesion layer is not less than 1.0 μm and not more than 2.0 μm.
First claim
Opening claim text (preview).
What is claimed is: 1. A thermal transfer sheet comprising, in the order mentioned, a substrate, a release layer, a colored layer, and an adhesion layer, wherein said colored layer comprises a colorant and a polyester-based resin; said adhesion layer comprises a polyester-based resin; a ratio of the thickness of said release layer to the total thickness of said colored layer and said adhesion layer (the thickness of said release layer/(the thickness of said colored layer+the thickness of said adhesion layer)) is not less than 2/3 and not more than 3/2; and the total thickness of said release layer, said colored layer, and said adhesion layer is not less than 1.0 μm and not more than 2.0 μm. 2. The thermal transfer sheet according to claim 1 , wherein the thickness of said colored layer is not less than 0.2 μm and not more than 0.8 μm. 3. The thermal transfer sheet according to claim 1 , wherein said colored layer comprises polyester-based resin A having a number average molecular weight of not less than 15,000 and polyester-based resin B having a number average molecular weight of not more than 5,000. 4. The thermal transfer sheet according to claim 3 , wherein a content ratio by mass of said polyester-based resin A to said polyester-based resin B (polyester-based resin A/polyester-based resin B) in said colored layer is not less than 2/3 and not more than 9/1. 5. The thermal transfer sheet according to claim 1 , wherein the number average molecular weight of said polyester-based resin contained in said adhesion layer is not less than 2,000 and not more than 25,000.
Assignees
Inventors
Classifications
Macromolecular additives, e.g. binders · CPC title
Intermediate layers; Layers between substrate and imaging layer · CPC title
- B41M5/38214Primary
Structural details, e.g. multilayer systems (composition of individual layers B41M5/42) · CPC title
- B41M5/44Primary
characterised by the macromolecular compounds · CPC title
relating to melt (thermal) mass transfer · CPC title
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Frequently asked questions
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- What does patent US9956802B2 cover?
- The thermal transfer sheet according to the present invention that has in the order mentioned, a substrate, a release layer, a colored layer, and an adhesion layer; and is characterized in that the colored layer contains a colorant and a polyester-based resin; the adhesion layer contains a polyester-based resin; a ratio of the thickness of the release layer to the total thickness of the colored…
- Who is the assignee on this patent?
- Dainippon Printing Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B41M5/38214. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 01 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).