Transfer member and thermal transfer printing method

• US 5,759,954 A
• Filed: 10/17/1995
• Issued: 06/02/1998
• Est. Priority Date: 10/20/1994
• Status: Expired due to Fees

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Matsuo, Hiroyuki, Yoshikawa, Masanori, Imai, Akihiro, Fukui, Yasuo, Sogami, Atsushi, Taguchi, Nobuyoshi
• Primary Examiner(s): Hess, Bruce H.
• Application Number:
  US08/544,257
• Time in Patent Office: 959 Days
• Field of Search: 8/471, 428/195, 428/913, 428/914, 503/227, 156/235
• US Class Current: 503/227
• CPC Class Codes: B41M 5/38221 Apparatus features
• CPC Class Codes: B41M 5/38257 characterised by the use of an intermediate receptor
• CPC Class Codes: B41M 5/395 Macromolecular additives, e.g. binders
• CPC Class Codes: B41M 5/42 Intermediate, backcoat, or covering layers B41M5/405 takes precedence; multilayer thermal transfer systems in general B41M5/38214
• CPC Class Codes: B41M 5/426 characterised by inorganic compounds, e.g. metals, metal salts, metal complexes
• CPC Class Codes: B41M 5/443 Silicon-containing polymers, e.g. silicones, siloxanes
• CPC Class Codes: B41M 7/0027 using protective coatings or layers by lamination or by fusion of the coatings or layers
• CPC Class Codes: Y10S 428/913 Material designed to be responsive to temperature, light, moisture
• CPC Class Codes: Y10S 428/914 Transfer or decalcomania

Abstract

A transfer member includes a dyeing layer transfer member, which has a lubricating heat-resistant layer on the reverse surface of a first base material and laminated layers of a parting layer and a dyeing layer on the obverse surface, an ink transfer member, having a lubricating heat-resistant layer on the reverse surface of a second base material and the laminated layers of an adhesive layer and an ink layer, an intermediate member having a functional layer on a third base material, and an image-receptor. A thermal transfer printing method includes the steps of thermally transferring the dyeing layer onto the functional layer by setting a thermal head in contact with the lubricating heat-resistant layer of the dyeing layer transfer member, thermally transferring dye of the ink layer onto the dyeing layer that was transferred onto the functional layer in response to picture signals by setting the thermal head in contact with the lubricating heat-resistant layer of the ink transfer member, and thermally transferring the dyeing layer recorded with the dye onto the main surface of the image-receptor. Thus, pictorial images of high quality are formed on the image-receptor, and thermal transfer printing can be carried out repeatedly and stably.

Claims

1. A transfer system comprising a dyeing layer transfer member comprising a lubricating heat-resistant layer on a reverse surface of a first base material and laminated layers of a parting layer and a dyeing layer on an obverse surface of said first base material, an ink transfer member comprising a lubricating heat-resistant layer on a reverse surface of a second base material and laminated layers of an adhesive layer and an ink layer on an obverse surface of said second base material, an intermediate member comprising a functional layer that accepts the dyeing layer on a third base material, and an image-receptor;

whereby said transfer system is suitable for conducting thermal transfer printing processes comprising the steps of thermally transferring said dyeing layer onto said functional layer by setting a thermal head in contact with said lubricating heat-resistant layer of said dyeing layer transfer member, thermally transferring dye of said ink layer to said dyeing layer already transferred onto said functional layer in response to image signals by setting a thermal head in contact with said lubricating heat-resistant layer of said ink transfer member, and thermally transferring said dyeing layer recorded with dye onto a main surface of said image-receptor; and

wherein heat-resistant properties of said dyeing layer gradually increase from a surface in contact with said parting layer to an outside surface of said dyeing layer.

2. The transfer system of claim 1, wherein the dyeing layer has adhesiveness of 10 g/25 mm-100 g/25 mm with respect to the functional layer on the intermediate member.

3. The transfer system of claim 1 wherein the same base material is used as the first base material formed with the dyeing layer transfer member and as the second base material formed with the ink transfer member.

4. The transfer system of claim 1, wherein the lubricating heat-resistant layer formed on the reverse surface of the base material comprises at least heat-resistant resin, inorganic or organic fine particles, and liquid lubricating material.