US4902669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal dye transfer printing systems, thermal printing sheets, and dye receiving sheets
Assignee: Panasonic Holdings Corp
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Filing: 1986-07-24
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Granted: 1990-02-20
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Expires: 2006-07-24
Abstract
Abstract A thermal transfer printing system comprising a dye transfer sheet having a dye carrier layer containing at least one sublimable dye and a dye acceptor sheet having a dye-receiving layer with good affinity for the sublimable dye. The two sheets are arranged during printing operations in such a way that they are facing through a slippage means which is in the form of a layer or particles of lubricating or thermally releasable materials. This system is adapted for a printing process in which a relative speed of the dye transfer sheet to a thermal printing head is smaller than a relative speed of the dye acceptor sheet under which the dye transfer sheet is heated in an imagewise pattern to permit the sublimable dye to deposit on the dye-receiving layer according to the imagewise pattern. The dye transfer sheet and the dye acceptor sheet most suitable for use in the system are also described.
Inventors
- 👤 Hiromu Matsuda
- 👤 Nobuyoshi Taguchi
- 👤 Akihiro Imai
- 👤 Keiichi Yubakami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:05
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/42; B41M5/382; B41M5/38207; B41M5/392; B41M5/395; B41M5/426; B41M5/44; B41M5/50; B41M5/52; B41M5/529; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/25; Y10T428/254; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2998; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31801
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
205 words
A thermal printing system, comprising (a) a dye transfer sheet having a thin substrate and a dye carrier layer formed on the substrate, said dye carrier layer comprising a mixture of at least one sublimable dye and a binder, and (b) a dye acceptor sheet having a substrate and a dye-receiving layer formed on the substrate, the dye-receiving layer being capable of receiving the sublimable dye which sublimates on heating of the dye transfer sheet, the dye carrier layer and the dye-receiving layer being arranged to face one another with a slippage means therebetween during a thermal transfer printing process in which the dye transfer sheet is fed to a thermal printing means at a speed lower than the speed at which the dye acceptor sheet is fed to the thermal printing means, said slippage means comprising a lubricating layer formed on the dye-receiving layer, said lubricating layer being made of a composition comprising a cured resin and a liquid lubricant, whereby when the dye carrier layer is heated in an imagewise pattern, the sublimable dye sublimates from the dye carrier layer and deposits on the dye-receiving layer according to the imagewise pattern without sticking of the dye transfer sheet and the dye acceptor sheet.
Claim 2
Dependent Claim
205 words
A thermal printing system, comprising (a) a dye transfer sheet having a thin substrate and a dye carrier layer formed on the substrate, said dye carrier layer comprising a mixture of at least one sublimable dye and a binder, and (b) a dye acceptor sheet having a substrate and a dye-receiving layer formed on the substrate, the dye-receiving layer being capable of receiving the sublimable dye which sublimates on heating of the dye transfer sheet, the dye carrier layer and the dye-receiving layer being arranged to face one another with a slippage means therebetween during a thermal transfer printing process in which the dye transfer sheet is fed to a thermal printing means at a speed lower than the speed at which the dye acceptor sheet is fed to the thermal printing means, said slippage means comprising a lubricating layer formed on the dye-receiving layer, said lubricating layer being made of a composition comprising a cured resin and a liquid lubricant, whereby when the dye carrier layer is heated in an imagewise pattern, the sublimable dye sublimates from the dye carrier layer and deposits on the dye-receiving layer according to the imagewise pattern without sticking of the dye transfer sheet and the dye acceptor sheet.
Claim 3
Dependent Claim
38 words
A thermal printing system according to claim 1, wherein said lubricating layer is made of a composition comprising a cured resin and a liquid lubricant in an amount of from 0.01 to 20 wt% of the cured resin.
References Cited (Backward Citations)
JPS57107885A
Cited
US4474859A
Cited
JPS58148794A
Cited
US4490434A
Cited
US4541830A
Cited
US4555427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-19 | 1993-08-21 | 1994-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-19 | 1997-08-21 | 1998-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-19 | 2001-08-21 | 2002-02-20 | $7700.00 | Window Closed / Lapsed |