US4612243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reusable heat-sensitive transfer element
Assignee: Fujicopian Co Ltd
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Filing: 1985-06-19
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Granted: 1986-09-16
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Expires: 2005-06-19
Abstract
Abstract A reusable heat-sensitive transfer recording element which comprises a foundation and an ink-containing layer provided on the foundation, said ink-containing layer comprising porous particles impregnated with a heat-meltable ink and a binder material for bonding the particles to each other, said binder material being substantially incompatible with the heat-meltable ink. With the present transfer elements, printed images having a high optical density can be obtained from the initial use thereof and printed images having such high optical density can be obtained at every repeated use.
Inventors
- 👤 Yoshikazu Shimazaki
- 👤 Suekichi Shimizu
- 👤 Nobuyuki Nakajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:54
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/38278; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/26; Y10T428/31504; Y10T428/31801
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
87 words
A reusable heat-sensitive transfer recording element comprising a foundation having thereon an ink-containing layer comprising porous particles having an average particle size of from about 1 to 20 μm and an average porosity of from about 50% to 97%, said particles being impregnated with a heat-meltable ink which is heat-transferable in increments during repeated use, and a binder material which binds said particles to each other and to said foundation, said binder material being substantially incompatible with said heat-meltable ink and being non-meltable under conditions of use.
Claim 2
Dependent Claim
87 words
A reusable heat-sensitive transfer recording element comprising a foundation having thereon an ink-containing layer comprising porous particles having an average particle size of from about 1 to 20 μm and an average porosity of from about 50% to 97%, said particles being impregnated with a heat-meltable ink which is heat-transferable in increments during repeated use, and a binder material which binds said particles to each other and to said foundation, said binder material being substantially incompatible with said heat-meltable ink and being non-meltable under conditions of use.
Claim 3
Dependent Claim
23 words
A recording element according to claim 1 in which said particles have an average particle size of from about 2 to 15 μm.
Claim 4
Dependent Claim
21 words
A recording element according to claim 1 in which said particles have an average porosity of from about 60% to 93%.
Claim 5
Dependent Claim
27 words
A recording element according to claim 1 in which said binder material is a resinous binder material having a softening temperature of not less than 70° C.
Claim 6
Dependent Claim
34 words
A recording element according to claim 1 in which said ink-containing layer comprises from 0.5 to 15 parts by weight of said binder material per 10 parts by weight of said impregnated porous particles.
Claim 7
Dependent Claim
20 words
A recording element according to claim 1 in which said heat-meltable ink comprises a waxy binder material and coloring matter.
Claim 8
Dependent Claim
33 words
A recording element according to claim 1 in which said ink-containing layer comprises from 3 to 20 parts by weight of said heat-meltable ink per 5 parts by weight of said porous particles.
Claim 9
Dependent Claim
14 words
A recording element according to claim 1 in which said porous particles comprise zeolite.
Claim 10
Dependent Claim
40 words
A recording element of claim 1, wherein the heat-meltable ink has a viscosity 10 to 500 cP at a temperature by 30° C. higher than the melting temperature of the ink and a melting temperature of 50 to 120° C.
Claim 11
Dependent Claim
29 words
A recording element of claim 1 in which said foundation is selected from the group consisting of plastic film, paper and combinations of each with a thin metal layer.
Claim 12
Dependent Claim
28 words
A recording element of claim 1 in which said ink-containing layer is provided on said foundation as a coating composition containing a volatile solvent which is subsequently evaporated.
References Cited (Backward Citations)
EP0039383A2
Cited
JPS58183297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-15 | 1990-03-17 | 1990-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-15 | 1994-03-17 | 1994-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-15 | 1998-03-17 | 1998-09-16 | $7700.00 | Window Closed / Lapsed |