US4927693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal transfer recording medium and its manufacturing method
Assignee: Konica Minolta Inc
•
Filing: 1989-01-23
•
Granted: 1990-05-22
•
Expires: 2009-01-23
Abstract
Abstract A thermal transfer recording medium having an anchor layer containing a resin component and carbon black between a thermally fusible colorant layer and a support and its manufacturing method are disclosed.
Inventors
- 👤 Kunihiro Koshizuka
- 👤 Toshiaki Tezuka
- 👤 Takao Abe
- 👤 Harue Ebisawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:07
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/42; B41M5/426; B41M5/44; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24893; Y10T428/24901; Y10T428/25; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/30
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
73 words
A thermal transfer recording medium comprising a support, and coated on said support, an anchor layer which is operable to remain substantially on said support and not be transferred when the thermal transfer recording medium is used, and coated on said anchor layer, a thermally fusible colorant layer, wherein said anchor layer contains a resin component and not less than 25% by weight of carbon black, and said colorant layer contains carbon black.
Claim 2
Dependent Claim
73 words
A thermal transfer recording medium comprising a support, and coated on said support, an anchor layer which is operable to remain substantially on said support and not be transferred when the thermal transfer recording medium is used, and coated on said anchor layer, a thermally fusible colorant layer, wherein said anchor layer contains a resin component and not less than 25% by weight of carbon black, and said colorant layer contains carbon black.
Claim 3
Dependent Claim
21 words
The medium of claim 1, wherein said carbon black content of said anchor layer is not less than 30% by weight.
Claim 4
Dependent Claim
19 words
The medium of claim 1, wherein said resin component has a softening point of not less than 100° C.
Claim 5
Dependent Claim
19 words
The medium of claim 1, wherein said resin component has a softening point of not less than 150° C.
Claim 6
Dependent Claim
19 words
The medium of claim 1, wherein oil absorption of said carbon black is not less than 20 ml/100 g.
Claim 7
Dependent Claim
24 words
The medium of claim 1, wherein oil absorption of said carbon black is from not less than 100 ml/100 g to 300 ml/100 g.
Claim 8
Dependent Claim
19 words
The medium of claim 1, wherein the mean diameter of said carbon black is not more than 100 mμ.
Claim 9
Dependent Claim
13 words
The medium of claim 1, wherein said anchor layer has a matted surface.
Claim 10
Dependent Claim
24 words
The medium of claim 1, wherein said anchor layer further contains at least one compound selected from polyester wax, polyamide wax and polyurethane wax.
Claim 11
Dependent Claim
17 words
The medium of claim 1, wherein the thickness of said anchor layer is 0.1 to 1.5 mμ.
References Cited (Backward Citations)
EP0208385A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-21 | 1993-11-20 | 1994-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-21 | 1997-11-20 | 1998-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-21 | 2001-11-20 | 2002-05-22 | $7700.00 | Window Closed / Lapsed |