US4865901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal transfer printing ribbon
Assignee: Brother Industries Ltd
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Filing: 1986-11-06
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Granted: 1989-09-12
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Expires: 2006-11-06
Abstract
Abstract In accordance with the present invention, a thermal transfer printing ribbon has a support element, and an ink layer including a thermal melting ink which is a blend of a binder and a colorant, the binder having an ethylene-vinylacetate copolymer and a highly viscous resin which has a melt viscosity of 103 to 5x104 P at 150 DEG C. In accordance with other features of the present invention, a thermal transfer printing ribbon has a support element, and an ink layer which is a blend having a first component, a second component which is not soluble in the first component, and a colorant, the first component including at least one of either an ethylene-vinylacetate copolymer and ethylene-ethyl acrylate, the second component including a highly viscous resin whose melt viscosity is greater than 103 P at 150 DEG C.
Inventors
- 👤 Hatsue Ohno
- 👤 Mikio Imaeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:00
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/392; B41M5/395; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31739; Y10T428/31786; Y10T428/31855; Y10T428/31935; Y10T428/31938; Y10T428/31971
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
86 words
A thermal transfer printing ribbon for printing on a print-receiving material, the ribbon comprising: a support element, and an ink layer including a thermal melting ink which is a blend comprising a binder and a colorant, said binder comprising ethylene-vinylacetate copolymer and a highly viscous resin which has a melt viscosity of 10 3 to 5×10 4 P at 150° C. to provide clear printing of said ink on the print-receiving material and clear correction of typing mistakes by removing said ink from the print-receiving material.
Claim 2
Dependent Claim
86 words
A thermal transfer printing ribbon for printing on a print-receiving material, the ribbon comprising: a support element, and an ink layer including a thermal melting ink which is a blend comprising a binder and a colorant, said binder comprising ethylene-vinylacetate copolymer and a highly viscous resin which has a melt viscosity of 10 3 to 5×10 4 P at 150° C. to provide clear printing of said ink on the print-receiving material and clear correction of typing mistakes by removing said ink from the print-receiving material.
Claim 3
Dependent Claim
26 words
The thermal transfer printing ribbon according to claim 1 wherein the highly viscous resin has a high affinity with said colorant and a high dispersion characteristic.
Claim 4
Dependent Claim
46 words
The thermal transfer printing ribbon according to claim 2 wherein said highly viscous resin comprises at least one material selected from the group consisting of vinylchloride-vinylacetate copolymer, vinyl chloride-vinylacetate-polyvinyl alcohol copolymer, polyvinyl butyral, polyethylene oxide, polycaprolactone, acrylic resin, polystyrene, cellulose acetate, polyester, polyethylene, and ethyl cellulose.
Claim 5
Dependent Claim
36 words
The thermal transfer printing ribbon according to claim 1 further comprising a prevention layer for preventing sticking, said prevention layer contacting the support element on a side of the support element opposite to said ink layer.
Claim 6
Dependent Claim
40 words
The thermal transfer printing ribbon of claim 1 further comprising a release layer between said support element and ink layer, the release layer releasing from said ink layer during printing and remaining in contact with said ink layer during correction.
Claim 7
Dependent Claim
102 words
A thermal transfer printing ribbon for printing on a print-receiving material, the ribbon comprising: a support element, and an ink layer which is a blend comprising a first component, a second component which is not soluble in said first component, and a colorant, said first component including at least one of ethylene-vinyl acetate copolymer and ethylene-ethyl acrylate, said second component including a highly viscous resin whose melt viscosity is greater than 10 3 P at 150° C. to provide clear printing of said ink on the print-receiving material and clear correction of typing mistakes by removing said ink from the print-receiving material.
Claim 8
Dependent Claim
102 words
A thermal transfer printing ribbon for printing on a print-receiving material, the ribbon comprising: a support element, and an ink layer which is a blend comprising a first component, a second component which is not soluble in said first component, and a colorant, said first component including at least one of ethylene-vinyl acetate copolymer and ethylene-ethyl acrylate, said second component including a highly viscous resin whose melt viscosity is greater than 10 3 P at 150° C. to provide clear printing of said ink on the print-receiving material and clear correction of typing mistakes by removing said ink from the print-receiving material.
Claim 9
Dependent Claim
38 words
The thermal transfer printing ribbon according to claim 6 wherein said second component is selected from at least one of polyvinyl butyral, vinylchloride-vinylacetate copolymer, vinylchloride-vinylacetate-vinylalcohol copolymer, polyethylene oxide, polyvinyl alcohol, polycaprolactone, polyester, polyethylene, cellulose nitrate, and cellulose acetate.
Claim 10
Dependent Claim
31 words
The thermal transfer printing ribbon according to claim 7 wherein an overcoat layer is provided upon said ink layer, and has the same composition as said first component without the colorant.
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) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-11 | 2001-03-13 | 2001-09-12 | $7700.00 | Window Closed / Lapsed |