EP0109295A2
Expired / Lapsed
EP
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Dye transfer sheets for heat-sensitive recording
Assignee: Panasonic Holdings Corp
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Filing: 1983-11-11
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Granted: —
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Expires: 2003-11-11
Abstract
Abstract A dye transfer sheet (2) for heat-sensitive recording is described which comprises a substrate (1), and a thin layer (2) of at least one sublimable dye formed on one side ofthe substrate. The dye layer comprises non-sublimable particles (3) uniformly distributed therethrough to form irregularities on the surface.
Inventors
- 👤 Shu Hotta
- 👤 Tokihiko Shimizu
- 👤 Nobuyoshi Taguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 14:41
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/392; B41M5/395; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24802; Y10T428/24893; Y10T428/24901; Y10T428/25; Y10T428/31
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
49 words
A dye transfer sheet(S) for heat-sensitive recording comprising a substrate (1) and a thin layer (2) of at least one sublimable dye formed on one side of the substrate (1), characterised by containing non-sublimable particles (3) uniformly distributed throughout the layer (2) to form irregularities on the surface thereof.
Claim 2
Dependent Claim
49 words
A dye transfer sheet(S) for heat-sensitive recording comprising a substrate (1) and a thin layer (2) of at least one sublimable dye formed on one side of the substrate (1), characterised by containing non-sublimable particles (3) uniformly distributed throughout the layer (2) to form irregularities on the surface thereof.
Claim 3
Dependent Claim
43 words
A dye transfer sheet according to claim 1, wherein said non-sublimable particles (3) are distributed in such a way that adjacent particles are not more than 200 pm apart as measured between cross-sections thereof at the surface level of said thin layer (2).
Claim 4
Dependent Claim
17 words
A dye transfer sheet according to claim 2, wherein adjacent particles are less than 20 pm apart.
Claim 5
Dependent Claim
24 words
A dye transfer sheet according to claim 1, 2 or 3 wherein the irregularities have a height (h) of from 0.1 to 1000 µm.
Claim 6
Dependent Claim
42 words
A dye transfer sheet according to any one of the preceding claims, wherein said non-sublimable particles (3) are used in an amount of 10 2 to 10 4 parts by volume per 100 parts by volume of said at least one dye.
Claim 7
Dependent Claim
20 words
A dye transfer sheet according to any one of the preceding claims, wherein said non-sublimable particles (3) are substantially spherical.
Claim 8
Dependent Claim
21 words
A dye transfer sheet according to any one of the preceding claims, wherein said thin layer (2) further comprises a binder.
Claim 9
Dependent Claim
29 words
A dye transfer sheet according to any one of the preceding claims, wherein said substrate (1) is made of a soluble resin having a melting point higher than 100°C.
Claim 10
Dependent Claim
25 words
A dye transfer sheet according to any one of the preceding claims, wherein said thin layer (2) is made of a plurality of sublimable dyes.
Claim 11
Dependent Claim
27 words
A dye transfer sheet according to claim 8, wherein the plurality of sublimable dyes comprises at least one sublimable basic dye and at least one disperse dye.
Claim 12
Dependent Claim
35 words
A dye transfer sheet according to any one of the preceding claims, further comprising a prime coating between said substrate (1) and said thin layer (2), said prime coating being made of a soluble resin.
Claim 13
Dependent Claim
25 words
Use of a dye transfer sheet as claimed in any one of the preceding claims in the preparation of a visible image by heat-sensitive recording.
References Cited (Backward Citations)
No citation records indexed.
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