Thermal transfer material

• US 5,019,452 A
• Filed: 06/06/1990
• Issued: 05/28/1991
• Est. Priority Date: 03/18/1987
• Status: Expired due to Term

• Current Assignee: Toppan Printing Co., Ltd. (TOPPAN Holdings, Inc.)
• Original Assignee: Toppan Printing Co., Ltd. (TOPPAN Holdings, Inc.)
• Inventors: Ito, Noriyuki, Watanabe, Niro, Yoshida, Masato
• Primary Examiner(s): Schwartz, Pamela R.
• Application Number:
  US07/534,357
• Time in Patent Office: 356 Days
• Field of Search: 428/195, 428/484, 428/488.1, 428/488.4, 428/913, 428/914, 428/422, 428/474.4, 428/480, 428/500
• US Class Current: 428/32.63
• CPC Class Codes: B41M 5/392 Additives, other than colour forming substances, dyes or pigments, e.g. sensitisers, transfer promoting agents
• CPC Class Codes: B41M 5/395 Macromolecular additives, e.g. binders
• CPC Class Codes: B41M 5/423 characterised by non-macromolecular compounds, e.g. waxes
• CPC Class Codes: B41M 5/52 Macromolecular coatings
• CPC Class Codes: B41M 5/5218 characterised by inorganic additives, e.g. pigments, clays
• CPC Class Codes: B41M 5/5227 characterised by organic non-macromolecular additives, e.g. UV-absorbers, plasticisers, surfactants
• CPC Class Codes: B41M 5/5254 characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
• CPC Class Codes: B41M 5/5272 Polyesters; Polycarbonates
• CPC Class Codes: B41M 5/529 characterised by the use of fluorine- or silicon-containing organic compounds
• CPC Class Codes: Y10S 428/913 Material designed to be responsive to temperature, light, moisture
• CPC Class Codes: Y10S 428/914 Transfer or decalcomania
• CPC Class Codes: Y10T 428/31725 Of polyamide
• CPC Class Codes: Y10T 428/31786 Of polyester [e.g., alkyd, etc.]
• CPC Class Codes: Y10T 428/31855 Of addition polymer from unsaturated monomers

Abstract

Thermal transfer material which is adopted for use in transferring an image of high resistances to wear, water and chemicals on a plastic base such as pre-paid card, coupon card and the like. The thermal transfer material comprises a heat-resistant support and a thermal transfer recording layer stacked on the support. The thermal transfer recording layer comprises a coloring agent, a hot-melt material comprising a thermoplastic resin having a glass transition point of 50 to 110° C., and a lubricant. There is also proposed a recording material adopted for use in combination with the thermal transfer material. The recording material comprises a support and an image-receiving layer formed on the support and comprising a lubricating agent and a thermoplastic resin having a glass transition point of 50° to 110° C. A method of transfer-recording using the thermal transfer material and the recording material is also proposed.

Claims

1. A thermal transfer material comprising:

a heat-resistant support; and

a first thermal transfer recording layer stacked on said support and mainly consisting of a coloring agent, a hot-melt material comprising a linear saturated polyester resin prepared by condensation polymerization of a dicarboxylic acid component and diol component and having a glass transition point falling within the range of 50°

to 110°

C., and a lubricating agent selected from the group consisting of Teflon and polyethylene, said hot-melt material being capable of being thermally transferred and adhesively secured to an image receiving layer to form an adhesively secured image.

2. A material according to claim 1, wherein the contents of the coloring agent, the hot-melt material, and the lubricating agent are 10 to 30, 40 to 80, and 5 to 30 parts by weight, respectively, with respect to 100 parts by weight of a total solid content of said first thermal transfer recording layer.

3. A material according to claim 1, further comprising a second thermal transfer recording layer provided between said support and said first thermal transfer recording layer and mainly consisting of a wax.

4. A material according to claim 3, wherein the content of the wax is 70 to 100 parts by weight with respect to 100 parts by weight of a total solid content of said second thermal transfer recording layer.

5. A material according to claim 1, wherein said hot-melt material further comprises a thermoplastic resin selected from the group consisting of a polyamide resin, polyacetal resin and a vinyl resin, and having a glass transition point falling within the range of 50°

to 110°

C.

6. A material according to claim 1, wherein said hot-melt material further comprises an acrylic resin having a glass transition point falling within the range of 50°

to 110°

C.