Patent US4880324A successfully refreshed from Google Patents.
US4880324A
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Transfer method for heat-sensitive transfer recording
Assignee: Canon Inc
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Filing: 1986-01-16
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Granted: 1989-11-14
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Expires: 2006-01-16
Abstract
Abstract A heat-sensitive transfer medium comprises a support and at least two heat-transferable ink layers including a first and a second ink layer. The first ink layer has relative adhesions with the second ink layer and the support which are reverse at a higher temperature from those at a lower temperature. When the heat-sensitive transfer medium is superposed with paper, a heat energy is applied, and the transfer medium is separated from the paper; the second ink layer is selectively transferred or both the first and second ink layers are transferred to the paper depending on the length of time from the heat application until the separation of the transfer medium, whereby two color images can be formed by a single transfer medium.
Inventors
- 👤 Hiroshi Sato
- 👤 Kazumi Tanaka
- 👤 Naoki Kushida
- 👤 Masato Katayama
- 👤 Yasuyuki Tamura
- 👤 Tetsuo Hasegawa
- 👤 Hisao Yaegashi
- 👤 Shuzo Kaneko
- 👤 Koichi Tohma
- 👤 Takayuki Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:46
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/38228; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31507; Y10T428/31511; Y10T428/31652; Y10T428/31663; Y10T428/31725; Y10T428/31739; Y10T428/31768; Y10T428/31786; Y10T428/31855; Y10T428/31942; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
216 words
A heat-sensitive transfer recording method, comprising: providing a heat-sensitive transfer medium comprising a support and at least two heat-transferrable ink layers including a first ink layer and a second ink layer disposed in the order named on the support, superposing the transfer medium on a recording medium to contact the recording medium, heating the transfer medium in a pattern corresponding to information to be recorded, wherein the adhesion strength between the first ink layer and the support (F 1 ) and the adhesion strength between the two ink layers (F 2 ) are such that F 1 >F 2 before and F 1 <F 2 after a predetermined time after heating, whereby the number of ink layers transferred from the transfer medium onto the recording medium depends on the length of time after heating until the transfer medium is separated from the recording medium, and separating the transfer medium from the recording medium after a predetermined length of time such that a transferred ink pattern of a prescribed number of ink layers is left on the recording medium, whereby the second ink layer is selectively transferred to the recording medium in a shorter time until separation, and both the first and second ink layers are transferred to the recording medium in a longer time until separation.
Claim 2
Dependent Claim
216 words
A heat-sensitive transfer recording method, comprising: providing a heat-sensitive transfer medium comprising a support and at least two heat-transferrable ink layers including a first ink layer and a second ink layer disposed in the order named on the support, superposing the transfer medium on a recording medium to contact the recording medium, heating the transfer medium in a pattern corresponding to information to be recorded, wherein the adhesion strength between the first ink layer and the support (F 1 ) and the adhesion strength between the two ink layers (F 2 ) are such that F 1 >F 2 before and F 1 <F 2 after a predetermined time after heating, whereby the number of ink layers transferred from the transfer medium onto the recording medium depends on the length of time after heating until the transfer medium is separated from the recording medium, and separating the transfer medium from the recording medium after a predetermined length of time such that a transferred ink pattern of a prescribed number of ink layers is left on the recording medium, whereby the second ink layer is selectively transferred to the recording medium in a shorter time until separation, and both the first and second ink layers are transferred to the recording medium in a longer time until separation.
Claim 3
Dependent Claim
23 words
The method according to claim 1, wherein the first ink layer is capable of hiding the second ink layer on the recording medium.
Claim 4
Dependent Claim
25 words
The method according to claim 1, wherein the first ink layer is capable of mixing colors with the second ink layer on the recording medium.
Claim 5
Dependent Claim
216 words
A heat-sensitive transfer recording method, comprising: providing a heat-sensitive transfer medium comprising a support and at least two heat-transferrable ink layers including a first ink layer and a second ink layer disposed in the order named on the support, superposing the transfer medium on a recording medium to contact the recording medium, heating the transfer medium in a pattern corresponding to information to be recorded, wherein the adhesion strength between the first ink layer and the support (F 1 ) and the adhesion strength between the two ink layers (F 2 ) are such that F 1 <F 2 before and F 1 >F 2 after a predetermined time after heating, whereby the number of ink layers transferred from the transfer medium onto the recording medium depends on the length of time after heating until the transfer medium is separated from the recording medium, and separating the transfer medium from the recording medium after a predetermined length of time such that a transferred ink pattern of a prescribed number of ink layers is left on the recording medium, whereby both the first and second ink layers are transferred to the recording medium in a shorter time until separation, and the second ink layer is selectively transferred to the recording medium in a longer time until separation.
Claim 6
Dependent Claim
216 words
A heat-sensitive transfer recording method, comprising: providing a heat-sensitive transfer medium comprising a support and at least two heat-transferrable ink layers including a first ink layer and a second ink layer disposed in the order named on the support, superposing the transfer medium on a recording medium to contact the recording medium, heating the transfer medium in a pattern corresponding to information to be recorded, wherein the adhesion strength between the first ink layer and the support (F 1 ) and the adhesion strength between the two ink layers (F 2 ) are such that F 1 <F 2 before and F 1 >F 2 after a predetermined time after heating, whereby the number of ink layers transferred from the transfer medium onto the recording medium depends on the length of time after heating until the transfer medium is separated from the recording medium, and separating the transfer medium from the recording medium after a predetermined length of time such that a transferred ink pattern of a prescribed number of ink layers is left on the recording medium, whereby both the first and second ink layers are transferred to the recording medium in a shorter time until separation, and the second ink layer is selectively transferred to the recording medium in a longer time until separation.
Claim 7
Dependent Claim
23 words
The method according to claim 4, wherein the first ink layer is capable of hiding the second ink layer on the recording medium.
Claim 8
Dependent Claim
25 words
The method according to claim 4, wherein the first ink layer is capable of mixing colors with the second ink layer on the recording medium.
Claim 9
Independent Claim
19 words
The method according to claims 1 or 4, wherein the first and second ink layers have different color tones.
Claim 10
Dependent Claim
16 words
The method according to claim 7, wherein the first and second ink layers have different hues.
Claim 11
Independent Claim
24 words
The method according to claims 1 or 4, wherein the first and second ink layers are colored in the same hue but different densities.
Claim 12
Independent Claim
20 words
The method according to claims 1 or 4, wherein the first and second ink layers have the same color tones.
Claim 13
Independent Claim
24 words
The method according to claims 1 or 4, wherein the heat-sensitive transfer medium comprises an adhesive layer between the first and second ink layers.
Claim 14
Dependent Claim
23 words
The method according to claim 11, wherein the heat-sensitive transfer medium comprises an adhesive layer between the first ink layer and the support.
Claim 15
Independent Claim
25 words
The method according to claims 1 or 4, wherein the heat-sensitive transfer medium comprises an adhesive layer between the first ink layer and the support.
Claim 16
Independent Claim
28 words
The method according to claims 1 or 4, wherein said support is selected from the group consisting of polyester, aramid resin, polycarbonate, triacetylcellulose, nylon, polyimide, cellulose and parchment.
Claim 17
Dependent Claim
16 words
The method according to claim 14, wherein said support is from 1 to 15 microns thick.
Claim 18
Dependent Claim
26 words
The method according to claim 15, wherein said support is from 3 to 12 microns thick and said transfer medium is heated using a thermal head.
Claim 19
Dependent Claim
46 words
The method according to claim 16, wherein a surface of said support contacts said thermal head, and said surface is coated with a heat-resistant protective layer selected from the group consisting of silicone resin, fluorine-containing resin, polyimide resin, epoxy resin, phenolic resin, melamine resin and nitrocellulose.
Claim 20
Dependent Claim
22 words
The method according to claim 15, wherein each of said first and second ink layers is from 0.5 to 10 microns thick.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-13 | 1993-05-15 | 1993-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-13 | 1997-05-15 | 1997-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-13 | 2001-05-15 | 2001-11-14 | $7700.00 | Window Closed / Lapsed |