US4865913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal transfer ink sheet
Assignee: Toppan Inc
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Filing: 1988-03-11
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Granted: 1989-09-12
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Expires: 2008-03-11
Abstract
Abstract A thermal transfer ink sheet adopted to be repeatedly reused several times in a printing operation by means of a thermal printer. The thermal transfer ink sheet comprises a sheet-like base such as paper or a plastic film, a hot-melt ink layer stacked on the base with an adhesive layer disposed therebetween, and an ink-holding porous membrane layer filled with hot-melt ink and stacked on the ink layer. Another hot-melt ink layer may be further stacked on the ink-holding porous membrane layer.
Inventors
- 👤 Hikaru Takeuchi
- 👤 Masato Yoshida
- 👤 Shiro Nemoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:16
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/42; B41M5/44; B41M5/382; B41M5/38278; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/27; Y10T428/273; Y10T428/277
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
43 words
A reusable thermal transfer ink sheet comprising a sheet material base, a hot-melt ink layer stacked on said base through an adhesive layer, and an ink holding porous membrane layer which is stacked on said ink layer and is filled with hot-melt ink.
Claim 2
Dependent Claim
43 words
A reusable thermal transfer ink sheet comprising a sheet material base, a hot-melt ink layer stacked on said base through an adhesive layer, and an ink holding porous membrane layer which is stacked on said ink layer and is filled with hot-melt ink.
Claim 3
Dependent Claim
22 words
A thermal transfer ink sheet according to claim 1, wherein said adhesive layer has a thickness ranging from 0.05 to 5.0 μm.
Claim 4
Dependent Claim
31 words
A thermal transfer ink sheet according to claim 2, wherein said hot-melt ink layer is coated on said adhesive layer at an amount of from 0.4 to 25 g/m 2 .
Claim 5
Dependent Claim
24 words
A thermal transfer ink sheet according to claim 3, wherein said ink holding porous membrane layer has an unfilled porosity to 30 to 97%.
Claim 6
Dependent Claim
31 words
A thermal transfer ink sheet according to claim 4, wherein said ink holding porous membrane layer is filled therein with a hot-melt ink at a filling ratio of 3 to 100%.
Claim 7
Dependent Claim
30 words
A thermal transfer ink sheet according to claim 5, wherein said ink holding porous membrane layer is filled therein with a hot-melt ink at a filling ratio of about 100%.
Claim 8
Dependent Claim
19 words
A thermal transfer ink sheet according to claim 1, wherein said adhesive layer is made of a synthetic resin.
Claim 9
Dependent Claim
21 words
A thermal transfer ink sheet according to claim 1, wherein said hot-melt ink layer comprises a coloring agent and a binder.
Claim 10
Dependent Claim
31 words
A thermal transfer ink sheet according to claim 1, wherein said hot-melt ink layer is coated on said adhesive layer at an amount of from 0.4 to 25 g/m 2 .
Claim 11
Dependent Claim
19 words
A thermal transfer ink sheet according to claim 1, wherein said ink holding porous membrane 0.05 to 5.0 μm.
Claim 12
Dependent Claim
28 words
A thermal transfer ink sheet according to claim 1, wherein said ink holding porous membrane layer has a porosity (before being filled with ink) of 30 to 97%.
Claim 13
Dependent Claim
33 words
A thermal transfer ink sheet according to claim 1, wherein said ink holding porous membrane layer is filled therein with a hot-melt ink at a filling ratio of 3 to 100% by volume.
Claim 14
Dependent Claim
56 words
A thermal transfer ink sheet comprising a sheet material base, a first hot-melt ink layer stacked on said base through an adhesive layer, an ink holding porous membrane layer which is stacked on said ink layer and is filled with hot-melt ink, and a second hot-melt ink layer stacked on said ink holding porous membrane layer.
Claim 15
Dependent Claim
56 words
A thermal transfer ink sheet comprising a sheet material base, a first hot-melt ink layer stacked on said base through an adhesive layer, an ink holding porous membrane layer which is stacked on said ink layer and is filled with hot-melt ink, and a second hot-melt ink layer stacked on said ink holding porous membrane layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-11 | 2001-03-13 | 2001-09-12 | $7700.00 | Window Closed / Lapsed |