EP0133011A2
Expired / Lapsed
EP
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A sheet for use in heat transfer printing
Assignee: Dai Nippon Printing Co Ltd
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Filing: 1984-07-24
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Granted: —
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Expires: 2004-07-24
Abstract
Abstract A heat transferable sheet to be heattransfer printed when used in combination with a heat transfer printing sheet has a receptive layer for receiving a dye transferred from the heat transfer printing sheet upon being heated, the receptive layer comprising first and second regions having respective specific properties.
Inventors
- 👤 Sadanobu Kawasaki
- 👤 Mineo Yamauchi
- 👤 Masanori Akada
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 05:01
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5263; B41M5/5272; B41M5/529; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
152 words
A heat transferable sheet to be heat transfer printed which is to be used in combination with a heat transfer printing sheet, and which has a receptive layer for receiving a dye transferred from the heat transfer printing sheet upon being heated,said receptive layer comprising first and second regions characterized in that: (a) the first region is formed from a synthetic resin having a glass transition temperature of from -100° to 20°C and having a polar group; (b) the second region is formed from a synthetic resin having a glass transition temperature of 40°C or above; (c) both the first region and the second region are exposed at the surface of the receptive layer, the first region occupying at least 15% of said surface; and (d) the first region exists in the form of mutually independent islands and the respective longitudinal length of the island-like portions is from 0.5 to 200 um.
Claim 2
Dependent Claim
152 words
A heat transferable sheet to be heat transfer printed which is to be used in combination with a heat transfer printing sheet, and which has a receptive layer for receiving a dye transferred from the heat transfer printing sheet upon being heated,said receptive layer comprising first and second regions characterized in that: (a) the first region is formed from a synthetic resin having a glass transition temperature of from -100° to 20°C and having a polar group; (b) the second region is formed from a synthetic resin having a glass transition temperature of 40°C or above; (c) both the first region and the second region are exposed at the surface of the receptive layer, the first region occupying at least 15% of said surface; and (d) the first region exists in the form of mutually independent islands and the respective longitudinal length of the island-like portions is from 0.5 to 200 um.
Claim 3
Dependent Claim
25 words
The heat transferable sheet to be heat transfer printed according to claim 1 wherein said receptive layer is provided on the surface of a substrate.
Claim 4
Dependent Claim
29 words
The heat transferable sheet to be heat transfer printed according to claim 1 wherein the first region-forming synthetic resin has a glass transition temperature of from -50° to l0°C.
Claim 5
Dependent Claim
42 words
The heat transferable sheet to be heat transfer printed according to claim 1 wherein the first region-forming synthetic resin has a polar group selected from the group consisting of ester linkages, urethane linkages, amide linkages, urea linkages, C-CN linkages, and C-Cl linkages.
Claim 6
Dependent Claim
29 words
The heat transferable sheet to be heat transfer printed according to claim 1 wherein the second region-forming synthetic resin has a glass transition temperature of from 50° to 150°C.
Claim 7
Dependent Claim
29 words
The heat transferable sheet to be heat transfer printed according to claim 1 wherein the first region occupies from 15 to 95% of the surface of the receptive layer.
Claim 8
Dependent Claim
45 words
The heat transferable sheet to be heat transfer printed according to claim 1 wherein the longitudinal lengths of the island-like portions of the first region are from 10 to 100 µm, and the periphery of the first region is substantially surrounded by the second region.
References Cited (Backward Citations)
No citation records indexed.
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