Patent EP0227092A2 successfully refreshed from Google Patents.
EP0227092A2
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Release agent for thermal dye transfer
Assignee: Eastman Kodak Co
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Filing: 1986-12-22
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Granted: —
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Expires: 2006-12-22
Abstract
Abstract A thermal dye transfer assemblage comprising: a) a dye-donor element comprising a support having thereon a dye layer, and b) a dye-receiving element comprising a support having thereon a dye image-receiving layer, the dye-receiving element being in a superposed relationship with the dye-donor element so that the dye layer is in contact with the dye image-receiving layer, characterized in that the dye layer contains a release agent comprising: a straight chain alkyl or polyethylene oxide perfluoroalkylated ester or perfluoroalkylated ether; a perfluorinated alkyl-sulfonamidoalkyl acrylate copolymerized with a polyoxyethylene-4-thiaheptandioate ester; a silicone polymer comprising units of a linear or branched alkyl or aryl siloxane; carnauba wax; bees wax; polyethylene wax having a melting point of 115 DEG C or above; an unmodified polyalkylene oxide; stearic acid; a fatty acid amide; or mixtures thereof. The release agent aids in separating the dye-donor element from the dye-receiving element after transfer.
Inventors
- 👤 Noel Rawle C/O Eastman Kodak Company Vanier
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 13:51
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; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31551; Y10T428/31652; Y10T428/31663; Y10T428/31786; Y10T428/31801
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
152 words
A thermal dye transfer assemblage comprising: a) a dye-donor element comprising a support having thereon a dye layer, and b) a dye-receiving element comprising a support having thereon a dye image-receiving layer, said dye-receiving element being in a superposed relationship with said dye-donor element so that said dye layer is in contact with said dye image-receiving layer, characterized in that said dye layer contains a release agent in such a concentration that said dye-receiving element may be substantially cleanly separated after processing from said dye-donor element, said release agent being a straight chain alkyl or polyethylene oxide perfluoroalkylated ester or perfluoroalkylated ether; a perfluorinated alkyl-sulfonamidoalkyl acrylate copolymerized with a polyoxyethylene-4-thiaheptandioate ester; a silicone polymer comprising units of a linear or branched alkyl or aryl siloxane; carnauba wax; bees wax; polyethylene wax having a melting point of 115°C or above; an unmodified polyalkylene oxide; stearic acid; a fatty acid amide; or mixtures thereof.
Claim 2
Dependent Claim
152 words
A thermal dye transfer assemblage comprising: a) a dye-donor element comprising a support having thereon a dye layer, and b) a dye-receiving element comprising a support having thereon a dye image-receiving layer, said dye-receiving element being in a superposed relationship with said dye-donor element so that said dye layer is in contact with said dye image-receiving layer, characterized in that said dye layer contains a release agent in such a concentration that said dye-receiving element may be substantially cleanly separated after processing from said dye-donor element, said release agent being a straight chain alkyl or polyethylene oxide perfluoroalkylated ester or perfluoroalkylated ether; a perfluorinated alkyl-sulfonamidoalkyl acrylate copolymerized with a polyoxyethylene-4-thiaheptandioate ester; a silicone polymer comprising units of a linear or branched alkyl or aryl siloxane; carnauba wax; bees wax; polyethylene wax having a melting point of 115°C or above; an unmodified polyalkylene oxide; stearic acid; a fatty acid amide; or mixtures thereof.
Claim 3
Dependent Claim
115 words
The assemblage of Claim 1 characterized in that said release agent has the following formula: wherein R' is an alkyl or substituted alkyl group having from 1 to 6 carbon atoms or an aryl or substituted aryl group having from 6 to 10 carbon atoms; R'is -CO-OCH(CH 3 )CH 2 OCH 2 CH 2 w R 3 , -COO-CH 2 -CH 2 -O x R 3 , -COO-CH 2 y R 3 or -CH 2 -O- CH 2 -CH 2 -O- z R 3 ; R' is H or R'; n is an integer of from 4 to 20; and w, x, y and z each independently represents an integer of from 2 to 50.
Claim 4
Dependent Claim
20 words
The assemblage of Claim 2 characterized in that R' is methyl or ethyl, n is 8 and R' is H.
Claim 5
Dependent Claim
22 words
The assemblage of Claim 1 characterized in that said release agent is a copolymer of a polyalkylene oxide and a methyl alkylsiloxane.
Claim 6
Dependent Claim
21 words
The assemblage of Claim 1 characterized in that said release agent is an unmodified polyethylene oxide, polypropylene oxide or polybutylene oxide.
Claim 7
Dependent Claim
24 words
The assemblage of Claim 1 characterized in that said release agent is a fatty acid amide comprising erucamide, erucylerucamide, stearamide, oleamide, behenamide or arachidiamide.
Claim 8
Dependent Claim
39 words
The assemblage of Claim 1 characterized in that said release agent is present at a concentration of from 0.25 to 7.5%. based on the total coating weight of polymer of said dye-receiving element or binder of said dye-donor element.
Claim 9
Dependent Claim
36 words
The assemblage of Claim 1 characterized in that the side of the support of the dye donor element, opposite the side having thereon said dye layer, is coated with a slipping layer comprising a lubricating material.
Claim 10
Dependent Claim
17 words
The assemblage of Claim 1 characterized in that said support of the dye-donor element comprises poly-(ethylene terephthalate).
Claim 11
Dependent Claim
21 words
The assemblage of Claim 1 characterized in that said dye layer comprises sequential repeating areas of cyan, magenta and yellow dye.
References Cited (Backward Citations)
No citation records indexed.
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