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EP0295483A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Solid particle lubricants for slipping layer of dye-donor element used in thermal dye transfer

Assignee: Eastman Kodak Co
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Filing: 1988-05-30
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Granted: —
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Expires: 2008-05-30
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Abstract

Abstract A dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye layer and on the other side a slipping layer comprising a lubricating material dispersed in a water-insoluble, cellulosic binder, the lubricating material comprising dry, solid lubricant particles protruding from the surface of the slipping layer, such as poly(tetrafluoroethylene), poly(hexafluoro­propylene) or poly(methylsilylsesquioxane).

Inventors

  • 👤 Richard Paul C/O Eastman Kodak Company Henzel
  • 👤 Noel Rawle C/O Eastman Kodak Company Vanier

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 19:39
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/42; B41M2205/00; B41M2205/30; B41M5/423; B41M5/44; B41M5/443; B41M5/446; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 58 words
A dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye layer and on the other side a slipping layer, characterized in that the slipping layer comprises a lubricating material dispersed in a water-insoluble, cellulosic binder, said lubricating material comprising dry, solid lubricant particles protruding from the surface of said slipping layer.
Claim 2
Dependent Claim 58 words
A dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye layer and on the other side a slipping layer, characterized in that the slipping layer comprises a lubricating material dispersed in a water-insoluble, cellulosic binder, said lubricating material comprising dry, solid lubricant particles protruding from the surface of said slipping layer.
Claim 3
Dependent Claim 16 words
The element of Claim 1 characterized in that said cellulosic binder also contains a polyvinyl acetal.
Claim 4
Dependent Claim 22 words
The element of Claim 2 characterized in that said polyvinyl acetal is a terpolymer of polyvinyl butyral, polyvinyl alcohol and polyvinyl acetate.
Claim 5
Dependent Claim 19 words
The element of Claim 1 characterized in that the ratio of binder to lubricant is from 0.1 to 10.
Claim 6
Dependent Claim 16 words
The element of Claim 1 characterized in that said lubricant particles are poly(tetrafluoroethylene), poly(hexafluoropropylene) or poly(methylsilylsesquioxane).
Claim 7
Dependent Claim 19 words
The element of Claim 1 characterized in that said lubricant particles have an average particle size below 10 µm.
Claim 8
Dependent Claim 15 words
The element of Claim 1 characterized in that said water-insoluble, cellulosic binder is cellulose nitrate.
Claim 9
Dependent Claim 24 words
The element of Claim 7 characterized in that said cellulose nitrate binder also contains a terpolymer of polyvinyl butyral, polyvinyl alcohol and polyvinyl acetate.
Claim 10
Dependent Claim 21 words
The element of Claim 8 characterized in that said dye layer comprises sequential repeating areas of cyan, magenta and yellow dye.

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