EP0192435A2
Expired / Lapsed
EP
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Thermal transfer dyesheet
Assignee: Imperial Chemical Industries Ltd
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Filing: 1986-02-14
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Granted: —
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Expires: 2006-02-14
Abstract
Abstract A thermal transfer dyesheet having a printing surface against which a receptor substrate may be held to receive thermally transferable dye in response to thermal stimuli applied to the dyesheet, the dyesheet comprising a substrate supporting a dyecoat comprising the thermally transferable dye dispersed throughout a polymeric binder, characterised in that the polymeric binder comprises a thermoset silicone composition as a continuous layer overlying the dyecoat, a process for its preparation, and the use of a thermoset silicone composition as a layer overlying the dyecoat.
Inventors
- 👤 Ruchard Anthony Hann
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 22:29
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/42; B41M5/44; B41M5/443; B41M5/382; B41M5/392; B41M5/395; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10S430/00; Y10S430/146; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
70 words
A thermal transfer dyesheet having a printing surface against which a receptor substrate may be held to receive a thermally transferable dye in response to thermal stimuli applied to the dyesheet, the dyesheet comprising a substrate supporting a dyecoat comprising the thermally transferable dye dispersed as solid particles throughout a polymeric binder, characterised in that the polymeric binder comprises a thermoset silicone composition as a continuous layer overlying the dyecoat.
Claim 2
Dependent Claim
70 words
A thermal transfer dyesheet having a printing surface against which a receptor substrate may be held to receive a thermally transferable dye in response to thermal stimuli applied to the dyesheet, the dyesheet comprising a substrate supporting a dyecoat comprising the thermally transferable dye dispersed as solid particles throughout a polymeric binder, characterised in that the polymeric binder comprises a thermoset silicone composition as a continuous layer overlying the dyecoat.
Claim 3
Dependent Claim
24 words
A dyesheet according to Claim 1, characterised in that the thermoset silicone composition comprises a polysiloxane resin cured with a tin- or platinum-based catalyst.
Claim 4
Dependent Claim
18 words
A dyesheet according to Claim 1, characterised in that the binder is a cellulose ether or ester derivative.
Claim 5
Dependent Claim
42 words
A dyesheet according to Claim 1, characterised in that the dye concentration in the dyecoat is from 2 to 200g dye per lOOg binder, the dyecoat is less than 5pm thick, and the silicone composition layer is from 0.07 to lpm thick.
Claim 6
Dependent Claim
45 words
A process for preparing a dyesheet according to Claim 1, characterised by coating a dyecoat comprising a thermally transferable dye as dispersed solid particles onto a substrate, as necessary drying the dyecoat, spreading a thermosetting silicone composition onto the dyecoat, and thermosetting the silicone composition.
Claim 7
Dependent Claim
15 words
The use of a thermoset silicone composition as a layer overlying a thermal transfer dyecoat.
Claim 8
Dependent Claim
15 words
The use of a thermoset silicone composition as a layer overlying a thermal transfer dyecoat.
References Cited (Backward Citations)
No citation records indexed.
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