EP0318944A2
Expired / Lapsed
EP
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Increasing dye transfer efficiency in dye-donor elements used in thermal dye transfer
Assignee: Eastman Kodak Co
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Filing: 1988-11-30
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Granted: —
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Expires: 2008-11-30
Abstract
Abstract A dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye dispersed in a polymeric binder, characterized in that the dye-donor element contains a colorless, nonpolymeric material for increasing dye transfer efficiency having the following formula: wherein D is -CO-, -SO₂NR-, -CONR-, -CO-CHR-CO-, wherein R is H or a substituted or unsubstituted alkyl group having from 1 to about 6 carbon atoms.
Inventors
- 👤 Noel Rawle C/O Eastman Kodak Company Vanier
- 👤 Kin Kwong C/O Eastman Kodak Company Lum
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 03:48
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/392; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
67 words
A dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye dispersed in a polymeric binder, characterized in that said dye-donor element contains a colorless, nonpolymeric material for increasing dye transfer efficiency having the following formula: wherein D is -CO-, -SO₂NR-, -CONR-, -CO-CHR-CO-, wherein R is H or a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms.
Claim 2
Dependent Claim
67 words
A dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye dispersed in a polymeric binder, characterized in that said dye-donor element contains a colorless, nonpolymeric material for increasing dye transfer efficiency having the following formula: wherein D is -CO-, -SO₂NR-, -CONR-, -CO-CHR-CO-, wherein R is H or a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms.
Claim 3
Dependent Claim
19 words
The element of Claim 1 characterized in that said polymeric binder comprises cellulose acetate propionate or cellulose acetate butyrate.
Claim 4
Dependent Claim
15 words
The element of Claim 1 characterized in that D is -CO-CHR-CO-, wherein R is hydrogen.
Claim 5
Dependent Claim
15 words
The element of Claim 1 characterized in that D is -SO₂NR-, wherein R is -C₂H₅.
Claim 6
Dependent Claim
11 words
The element of Claim 1 characterized in that D is -CONR-.
Claim 7
Dependent Claim
13 words
The element of Claim 5 characterized in that R is methyl or ethyl.
Claim 8
Dependent Claim
27 words
The element of Claim 1 characterized in that said support comprises poly(ethylene terephthalate) and the dye layer comprises sequential repeating areas of cyan, magenta and yellow dye.
References Cited (Backward Citations)
No citation records indexed.
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