US5114904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal transfer recording medium and image forming body
Assignee: Toppan Inc
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Filing: 1990-12-20
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Granted: 1992-05-19
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Expires: 2010-12-20
Abstract
Abstract A thermal transfer recording medium such as a color thermal transfer paper or ribbon which is used in combination with a thermal head or pen to print an image on an image forming body or sheet. The thermal transfer recording medium comprises a polyester supporting film, a first thermal transfer layer formed on the supporting film, which consists mainly of a saturated polyester copolymer having a molecular weight of 8,000 to 30,000 and containing a sublimation or hot-melt transfer dye. A second thermal transfer layer containing a dye as that of the first transfer layer may be formed on the first transfer layer. The thermal transfer image forming body comprises a supporting body, a dyeing image forming layer formed on the supporting body and made mainly of a thermoplastic resin having four or more OH group per molecule, a tensile break strength of 300 kg/cm 2 or more and tensile break elongation of 20% or more, and a surface layer made of a silicone resin.
Inventors
- 👤 Takeo Kawakami
- 👤 Takashi Kagami
- 👤 Yosei Chosa
- 👤 Masato Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:21
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/392; B41M5/395; B41M5/38228; B41M5/40; B41M5/41; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31786; Y10T428/31855
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
97 words
A thermal transfer image forming body comprising: a supporting body; a dyeing image forming layer formed on the supporting body and consisting mainly of a thermoplastic resin having four or more hydroxyl groups per molecule, a tensile break strength of 300 kg/cm 2 (ASTM D638) or greater, a tensile break elongation of 20% (ASTM D638) or greater, and a dyeing property with respect to a sublimation or hot-melt transfer dye; and a surface layer formed on the dyeing image forming layer and containing a dye-permeating lubricant consisting of an addition reaction or condensation reaction curing silicon resin.
Claim 2
Dependent Claim
97 words
A thermal transfer image forming body comprising: a supporting body; a dyeing image forming layer formed on the supporting body and consisting mainly of a thermoplastic resin having four or more hydroxyl groups per molecule, a tensile break strength of 300 kg/cm 2 (ASTM D638) or greater, a tensile break elongation of 20% (ASTM D638) or greater, and a dyeing property with respect to a sublimation or hot-melt transfer dye; and a surface layer formed on the dyeing image forming layer and containing a dye-permeating lubricant consisting of an addition reaction or condensation reaction curing silicon resin.
Claim 3
Dependent Claim
87 words
A thermal transfer image forming body comprising: a supporting body; and a dyeing image forming layer, formed on the supporting body, consisting mainly of a thermoplastic resin having four or more hydroxyl groups per molecule, a tensile break strength of 300 kg/cm 2 (ASTM D638) or greater, a tensile break elongation of 20% (ASTM D638) or greater, and a dyeing property with respect to a sublimation or hot melt migration dye, and containing a dye-permeating lubricant consisting of an addition reaction or condensation reaction curing silicone resin.
Claim 4
Dependent Claim
87 words
A thermal transfer image forming body comprising: a supporting body; and a dyeing image forming layer, formed on the supporting body, consisting mainly of a thermoplastic resin having four or more hydroxyl groups per molecule, a tensile break strength of 300 kg/cm 2 (ASTM D638) or greater, a tensile break elongation of 20% (ASTM D638) or greater, and a dyeing property with respect to a sublimation or hot melt migration dye, and containing a dye-permeating lubricant consisting of an addition reaction or condensation reaction curing silicone resin.
Claim 5
Dependent Claim
184 words
A thermal transfer system which comprises: (a) a thermal transfer recording medium comprising: a film-like supporting body consisting of a polyester resin; a first thermal transfer layer, formed on the supporting body, consisting mainly of a saturated polyester copolymer having a molecular weight of 8,000 to 30,000, and containing a sublimation or hot-melt transfer dye; and a second thermal transfer layer, formed on the first transfer layer and consisting mainly of a thermoplastic vinyl acetal resin, and containing a sublimation or hot-melt transfer dye of the same color as that of the first thermal transfer layer; and (b) a thermal transfer image forming body comprising: a supporting body; and a dyeing image forming layer, formed on the supporting body, consisting mainly of a thermoplastic resin having four or more hydroxyl groups per molecule, a tensile break strength of 300 kg/cm 2 (ASTM D638) or greater, a tensile break elongation of 20% (ASTM D638) or greater, and a dyeing property with respect to a sublimation or hot-melt migration dye, and containing a dye-permeating lubricant consisting of an addition reaction or condensation reaction curing silicon resin.
Claim 6
Dependent Claim
184 words
A thermal transfer system which comprises: (a) a thermal transfer recording medium comprising: a film-like supporting body consisting of a polyester resin; a first thermal transfer layer, formed on the supporting body, consisting mainly of a saturated polyester copolymer having a molecular weight of 8,000 to 30,000, and containing a sublimation or hot-melt transfer dye; and a second thermal transfer layer, formed on the first transfer layer and consisting mainly of a thermoplastic vinyl acetal resin, and containing a sublimation or hot-melt transfer dye of the same color as that of the first thermal transfer layer; and (b) a thermal transfer image forming body comprising: a supporting body; and a dyeing image forming layer, formed on the supporting body, consisting mainly of a thermoplastic resin having four or more hydroxyl groups per molecule, a tensile break strength of 300 kg/cm 2 (ASTM D638) or greater, a tensile break elongation of 20% (ASTM D638) or greater, and a dyeing property with respect to a sublimation or hot-melt migration dye, and containing a dye-permeating lubricant consisting of an addition reaction or condensation reaction curing silicon resin.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-19 | 1995-11-18 | 1996-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-19 | 1999-11-18 | 2000-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-19 | 2003-11-18 | 2004-05-19 | $7700.00 | Window Closed / Lapsed |