US4580142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal transfer impression system
Assignee: Mitsubishi Paper Mills Ltd
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Filing: 1984-07-10
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Granted: 1986-04-01
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Expires: 2004-07-10
Abstract
Abstract Disclosed is a process for thermal transfer impression, which comprises contacting a master image forming substrate sheet with a thermal transfer ink roll comprising as major components a wax, a coloring matter, and a low-melting-point resin, heating said substrate sheet on the side opposite to that in contact with the ink roll to impress a master image on the latter side of said substrate sheet, then bringing the impressed side of said substrate sheet in contact with an image receiving substrate sheet, and passing the resulting assembly through a heating device to transfer the impressed image to said image receiving substrate sheet. Multicolor thermal transfer impression is possible by using an ink roll divided into a plurality of ink sections of different colors.
Inventors
- 👤 Toshihiko Matsushita
- 👤 Sadao Morishita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:53
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/315; B41J2/32; B41J2/325; B41J2/33
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
100 words
A process for thermal transfer impression, which comprises contacting a master image forming substrate sheet with a thermal transfer ink roll comprising as major components a wax, a coloring matter, and a low-melting-point resin, heating said substrate sheet on the side opposite to that in contact with the ink roll to impress a master image on the latter side of said substrate sheet, then bringing the impressed side of said substrate sheet in contact with an image receiving substrate sheet, and passing the resulting assembly through a heating device to transfer the impressed image to said image receiving substrate sheet.
Claim 2
Dependent Claim
100 words
A process for thermal transfer impression, which comprises contacting a master image forming substrate sheet with a thermal transfer ink roll comprising as major components a wax, a coloring matter, and a low-melting-point resin, heating said substrate sheet on the side opposite to that in contact with the ink roll to impress a master image on the latter side of said substrate sheet, then bringing the impressed side of said substrate sheet in contact with an image receiving substrate sheet, and passing the resulting assembly through a heating device to transfer the impressed image to said image receiving substrate sheet.
Claim 3
Dependent Claim
17 words
A process according to claim 1, wherein the thermal transfer ink roll comprises a single fusible ink.
Claim 4
Dependent Claim
24 words
A process according to claim 1, wherein the thermal transfer ink roll is divided into a plurality of fusible ink sections of different colors.
Claim 5
Dependent Claim
24 words
A process according to claim 3, wherein the thermal transfer ink roll is divided into three sections of cyan, magenta, and yellow fusible inks.
Claim 6
Dependent Claim
25 words
A process according to claim 3, wherein the thermal transfer ink roll is divided into four sections of cyan, magenta, yellow, and black fusible inks.
Claim 7
Dependent Claim
33 words
A process according to claim 1 wherein the master image forming substrate sheet is heated by means of a thermal head on the side opposite to that in contact with the ink roll.
Claim 8
Dependent Claim
33 words
A process according to claim 1 wherein the master image forming substrate sheet is heated by means of a laser beam on the side opposite to that in contact with the ink roll.
Claim 9
Dependent Claim
26 words
A process according to claim 1, wherein the heating device is at least one of the hot roll, thermal head, infrared lamp, and flash-type UV lamp.
Claim 10
Dependent Claim
18 words
A process according to claim 1, wherein the master image forming substrate sheet is in an endless form.
Claim 11
Dependent Claim
17 words
A process according to claim 1, wherein the master image forming substrate sheet is a plastic film.
Claim 12
Dependent Claim
24 words
A process according to claim 1, wherein the thickness of the master image forming substrate sheet is from about 5 to about 50 μm.
Claim 13
Dependent Claim
19 words
A process according to claim 1, wherein the image receiving substrate sheet is a highly smooth normal paper sheet.
Claim 14
Dependent Claim
101 words
An equipment for thermal transfer impression comprising a master image forming substrate sheet; a thermal transfer ink roll in contact with said substrate sheet to transfer an ink to said substrate sheet to form a master image thereon when thermal impression is performed on the contact surface; a heat supplying means to perform thermal impression on the side of said substrate sheet opposite to the contact side; and a heating device to supply heat to said substrate sheet with the master image-bearing side in contact with an image receiving substrate sheet, thereby to transfer the master image to the latter sheet.
Claim 15
Dependent Claim
101 words
An equipment for thermal transfer impression comprising a master image forming substrate sheet; a thermal transfer ink roll in contact with said substrate sheet to transfer an ink to said substrate sheet to form a master image thereon when thermal impression is performed on the contact surface; a heat supplying means to perform thermal impression on the side of said substrate sheet opposite to the contact side; and a heating device to supply heat to said substrate sheet with the master image-bearing side in contact with an image receiving substrate sheet, thereby to transfer the master image to the latter sheet.
Claim 16
Dependent Claim
17 words
An equipment according to claim 13, wherein the thermal transfer ink roll comprises a single fusible ink.
Claim 17
Dependent Claim
24 words
An equipment according to claim 13, wherein the thermal transfer ink roll is divided into a plurality of fusible ink sections of different colors.
Claim 18
Dependent Claim
24 words
An equipment according to claim 15, wherein the thermal transfer ink roll is divided into three sections of cyan, magenta, and yellow fusible inks.
Claim 19
Dependent Claim
25 words
An equipment according to claim 15, wherein the thermal transfer ink roll is divided into four sections of cyan, magenta, yellow, and black fusible inks.
Claim 20
Dependent Claim
36 words
An equipment according to claim 13, wherein the heating of the master image forming substrate sheet on the side opposite to that in contact with the ink roll is performed by means of a thermal head.
Claim 21
Dependent Claim
36 words
An equipment according to claim 13, wherein the heating of the master image forming substrate sheet on the side opposite to that in contact with the ink roll is performed by means of a laser beam.
Claim 22
Dependent Claim
26 words
An equipment according to claim 13, wherein the heating device is at least one of the hot roll, thermal head, infrared lamp, and flash-type UV lamp.
Claim 23
Dependent Claim
16 words
An equipment according to claim 13, wherein the master image forming substrate sheet is fed endlessly.
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) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |