Patent US5116148A successfully refreshed from Google Patents.
US5116148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat transfer ink sheet having a precoating layer which is thermally transferred prior to sublimation of an ink dye
Assignee: Hitachi Ltd
•
Filing: 1990-05-29
•
Granted: 1992-05-26
•
Expires: 2010-05-29
Abstract
Abstract The present invention provides a heat transfer process and a heat transfer ink sheet, where a letter or image or both is recorded by selectively heating a heat transfer ink sheet having ink layer regions each containing a sublimable or vaporizable dye by heating by a thermal head controlled by a controlling means, thereby selectively heat transferring the sublimated or vaporized dyes onto a recording sheet, and is characterized by heat transferring a precoating layer for receiving the dyes from the ink sheet onto the recording sheet before the heat transfer recording, and then pressing the ink sheet on the transferred precoating layer on the recording sheet and heating the ink sheet by the thermal head, thereby sublimating or vaporizing the dyes from the respective ink layers onto the precoating layer and forming the letter or image or both on the recording sheet.
Inventors
- 👤 Shuichi Ohara
- 👤 Shiniichi Akasaka
- 👤 Hiroyuki Oka
- 👤 Shintaroo Hattori
- 👤 Rieko Oyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:52
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/315; B41J2/32; B41J2/325; B41M; B41M5/00; B41M5/26; B41M5/34; B41M5/345; B41J2202/00; B41J2202/30; B41J2202/33; Y; Y10; Y10S; Y10S428/00; Y10S428/913
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
294 words
A process for printing a colored image on a recording sheet, which comprises the steps of: preparing an ink sheet which is provided with on one surface thereof an ink layer region containing a sublimable or vaporizable dye and a precoating layer region for a precoating layer, said precoating layer region being adjacent to said ink layer region and both regions being arranged alternately, the precoating layer region being made of an organic material having at least one of an ester bond and an amide bond and being capable of being easily dyed with the dye in the ink layer region, wherein said ink sheet is further provided with a first silicone resin layer over said ink layer region and a second silicone resin layer between said precoating layer region and a base sheet of said ink sheet; bringing the precoating layer region of the ink sheet into contact with the surface of the recording sheet; heating the precoating layer region by a thermal heat controlled by a controlling means so as to effect transfer of the precoating layer region to the surface of the recording sheet; bringing the ink layer region of the ink sheet into contact with the surface of the transferred precoating layer on the recording sheet; and effecting sublimation or vaporization of the dye in the ink layer region by heat from the thermal heat so as to transfer the dye into the transferred precoating layer wherein said first silicone resin layer prevents adhering of the ink layer region remaining on the ink sheet to the transferred precoating layer and wherein said second silicone resin layer facilitates separation of said precoating layer from said ink sheet during transfer of said precoating layer region to the surface of the recording sheet.
Claim 2
Dependent Claim
294 words
A process for printing a colored image on a recording sheet, which comprises the steps of: preparing an ink sheet which is provided with on one surface thereof an ink layer region containing a sublimable or vaporizable dye and a precoating layer region for a precoating layer, said precoating layer region being adjacent to said ink layer region and both regions being arranged alternately, the precoating layer region being made of an organic material having at least one of an ester bond and an amide bond and being capable of being easily dyed with the dye in the ink layer region, wherein said ink sheet is further provided with a first silicone resin layer over said ink layer region and a second silicone resin layer between said precoating layer region and a base sheet of said ink sheet; bringing the precoating layer region of the ink sheet into contact with the surface of the recording sheet; heating the precoating layer region by a thermal heat controlled by a controlling means so as to effect transfer of the precoating layer region to the surface of the recording sheet; bringing the ink layer region of the ink sheet into contact with the surface of the transferred precoating layer on the recording sheet; and effecting sublimation or vaporization of the dye in the ink layer region by heat from the thermal heat so as to transfer the dye into the transferred precoating layer wherein said first silicone resin layer prevents adhering of the ink layer region remaining on the ink sheet to the transferred precoating layer and wherein said second silicone resin layer facilitates separation of said precoating layer from said ink sheet during transfer of said precoating layer region to the surface of the recording sheet.
Claim 3
Dependent Claim
130 words
An ink sheet for printing a colored image on a recording sheet, which comprises: a base sheet; an ink layer region containing a sublimable or vaporizable dye, formed on the base sheet; a precoating layer region for a precoating layer, formed on the base sheet in the precoating layer region being formed adjacent to the ink layer region and being made of an organic material having at least one of an ester and an amide bond and being capable of being easily dyed with the dye in the ink layer region; a first silicone resin layer formed on said ink layer region; and a second silicone resin layer formed between said precoating layer region and said base sheet for facilitating separation of said precoating layer region from said base sheet.
Claim 4
Dependent Claim
130 words
An ink sheet for printing a colored image on a recording sheet, which comprises: a base sheet; an ink layer region containing a sublimable or vaporizable dye, formed on the base sheet; a precoating layer region for a precoating layer, formed on the base sheet in the precoating layer region being formed adjacent to the ink layer region and being made of an organic material having at least one of an ester and an amide bond and being capable of being easily dyed with the dye in the ink layer region; a first silicone resin layer formed on said ink layer region; and a second silicone resin layer formed between said precoating layer region and said base sheet for facilitating separation of said precoating layer region from said base sheet.
Claim 5
Dependent Claim
185 words
An ink sheet for a heat transfer printer for forming a letter or image or both by laying a heat transfer ink sheet provided with an ink layer region containing a heat-sublimable or vaporizable dye, selectively heating the ink sheet by a thermal head controlled by a controlling means, thereby sublimating or vaporizing the dye, and selectively heat transferring the dye onto a recording sheet, wherein the ink sheet comprises a base sheet, precoating layer regions capable of forming a precoating layer for receiving the dye on the recording sheet by heat transfer and ink layer regions, the precoating layer regions and the ink layer regions being provided on the base sheet alternately in succession, and further comprising adhesion-preventing composed mainly of silicone resin provided on the surfaces of the ink layer regions, wherein the precoating layer regions formed on the base sheet are each composed of an organic material having at least one of an ester bond and an amide bond, and having a heat transfer temperature of 50° to 250° C. at which the precoating layer regions are transferred onto the recording sheet.
Claim 6
Dependent Claim
185 words
An ink sheet for a heat transfer printer for forming a letter or image or both by laying a heat transfer ink sheet provided with an ink layer region containing a heat-sublimable or vaporizable dye, selectively heating the ink sheet by a thermal head controlled by a controlling means, thereby sublimating or vaporizing the dye, and selectively heat transferring the dye onto a recording sheet, wherein the ink sheet comprises a base sheet, precoating layer regions capable of forming a precoating layer for receiving the dye on the recording sheet by heat transfer and ink layer regions, the precoating layer regions and the ink layer regions being provided on the base sheet alternately in succession, and further comprising adhesion-preventing composed mainly of silicone resin provided on the surfaces of the ink layer regions, wherein the precoating layer regions formed on the base sheet are each composed of an organic material having at least one of an ester bond and an amide bond, and having a heat transfer temperature of 50° to 250° C. at which the precoating layer regions are transferred onto the recording sheet.
Claim 7
Dependent Claim
43 words
An ink sheet for a heat transfer printer according to claim 5, wherein the precoating layer regions provided on the base sheet are each composed of at least one of polyester resin, polyamide resin, higher fatty acid esters, and higher fatty acid amides.
Claim 8
Dependent Claim
237 words
A process for printing a colored image on a recording sheet, which comprises the steps of: preparing an ink sheet which is provided with on one surface thereon an ink layer region containing a sublimable or vaporizable dye and a region for a precoating layer, only the surface of the ink layer region being covered with an adhesion preventing layer, the precoating layer region being adjacent to the ink layer region and both regions being arranged alternately, the precoating layer region being made of an organic material having at least one of an ester bond and an amide bond and being capable of being easily dyed with the dye in the ink layer region; bringing the precoating layer region of the ink sheet into contact with the surface of the recording sheet; heating the precoating layer region by a thermal head controlled by a controlling means so as to effect transfer of the precoating layer region to the surface of the recording sheets; bringing the ink layer region of the ink sheet into contact with the surface of the transferred precoating layer through the adhesion preventing layer; and effecting sublimation or vaporization of the dye in the ink layer region by heat from the thermal head so as to transfer the dye into the transferred precoating layer, while the adhesion preventing layer prevents adhering of the ink layer remaining on the ink sheet to the precoating layer.
Claim 9
Dependent Claim
237 words
A process for printing a colored image on a recording sheet, which comprises the steps of: preparing an ink sheet which is provided with on one surface thereon an ink layer region containing a sublimable or vaporizable dye and a region for a precoating layer, only the surface of the ink layer region being covered with an adhesion preventing layer, the precoating layer region being adjacent to the ink layer region and both regions being arranged alternately, the precoating layer region being made of an organic material having at least one of an ester bond and an amide bond and being capable of being easily dyed with the dye in the ink layer region; bringing the precoating layer region of the ink sheet into contact with the surface of the recording sheet; heating the precoating layer region by a thermal head controlled by a controlling means so as to effect transfer of the precoating layer region to the surface of the recording sheets; bringing the ink layer region of the ink sheet into contact with the surface of the transferred precoating layer through the adhesion preventing layer; and effecting sublimation or vaporization of the dye in the ink layer region by heat from the thermal head so as to transfer the dye into the transferred precoating layer, while the adhesion preventing layer prevents adhering of the ink layer remaining on the ink sheet to the precoating layer.
Claim 10
Dependent Claim
45 words
The process according to claim 5, wherein the organic material having at least one of an ester bond and an amide bond has a heat transfer temperature of 50° C. to 250° C. at which the precoating layer region is transferred onto the recording sheet.
Claim 11
Dependent Claim
23 words
The process according to claim 5, wherein the ink layer region on the ink sheet comprises three segments of Cyan, Magenta and Yellow.
Claim 12
Dependent Claim
123 words
An ink sheet for printing a colored image on a recording sheet, which comprises, a base sheet; ink layer regions each containing a sublimable or vaporizable dye, formed on the base sheet; precoating layer regions formed on the base sheet; and an adhesion preventing layer for preventing adhering of the ink layer remaining on the ink sheet to the precoating layer transferred onto the recording sheet, formed on the surface of the ink layer; wherein the precoating layer region is formed adjacent to the ink layer region, the precoating layer is made of an organic material having at least one of an ester bond and an amide bond and being capable of being easily dyed with the dye in the ink layer region.
Claim 13
Dependent Claim
123 words
An ink sheet for printing a colored image on a recording sheet, which comprises, a base sheet; ink layer regions each containing a sublimable or vaporizable dye, formed on the base sheet; precoating layer regions formed on the base sheet; and an adhesion preventing layer for preventing adhering of the ink layer remaining on the ink sheet to the precoating layer transferred onto the recording sheet, formed on the surface of the ink layer; wherein the precoating layer region is formed adjacent to the ink layer region, the precoating layer is made of an organic material having at least one of an ester bond and an amide bond and being capable of being easily dyed with the dye in the ink layer region.
Claim 14
Dependent Claim
46 words
The ink sheet according to claim 8, wherein the organic material having at least one of an ester bond and an amide bond has a heat transfer temperature of 50° C. to 250° C. at which the precoating layer regions are transferred onto the recording sheet.
Claim 15
Dependent Claim
24 words
The ink sheet according to claim 8, wherein the ink layer region on the ink sheet comprises three segments of Cyan, Magenta and Yellow.
References Cited (Backward Citations)
US3002850A
Cited
US3950171A
Cited
US4021591A
Cited
US4058644A
Cited
US4022926A
Cited
US4310258A
Cited
US4547088A
Cited
JPS57169370A
Cited
US4505603A
Cited
JPS58148778A
Cited
JPS58148779A
Cited
US4453839A
Cited
US4477198A
Cited
US4551729A
Cited
US4558329A
Cited
US4527171A
Cited
JPS59109394A
Cited
JPS59109393A
Cited
JPS59169878A
Cited
US4660051A
Cited
EP0148276A1
Cited
US4651645A
Cited
WO1985001698A1
Cited
US4562443A
Cited
US4815872A
Cited
US4778782A
Cited
US4756633A
Cited
JPS6486289A
Cited
JPH01237688A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-26 | 1995-11-25 | 1996-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-26 | 1999-11-25 | 2000-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-26 | 2003-11-25 | 2004-05-26 | $7700.00 | Window Closed / Lapsed |