Patent US4675233A successfully refreshed from Google Patents.
US4675233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink transfer material for printer
Assignee: Toray Industries Inc
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Filing: 1985-04-05
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Granted: 1987-06-23
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Expires: 2005-04-05
Abstract
Abstract An ink transfer material for printers which comprises a biaxially oriented polyester film and a transfer ink layer deposited on one side of the polyester film, the biaxially oriented polyester film having a thickness in the range of 1 to 15μ, an F-5 value in the longitudinal direction in the range of 11 to 16 kg/mm 2 , a refractive index in each of the longitudinal and lateral directions in the range of 1.650 to 1.675, and a birefringence of not more than 0.02, and the rough surface having a center line average height thereof in the range of 0.02 to 1μ and a maximum height in the range of 0.2 to 10μ. This ink transfer material has no disadvantage such as longitudinal tear, plastic deformation, or thermal shrinkage. Thus, it is highly useful in thermal transfer printers and impact printers.
Inventors
- 👤 Yasuzi Nakahara
- 👤 Hideki Yamagishi
- 👤 Shun-ichiro Kirimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:43
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/10; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/25; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/266; Y10T428/31504; Y10T428/31786
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
120 words
An ink transfer material for printers, comprising a biaxially oriented polyester film and a transfer ink layer deposited on one side of said polyester film, said biaxially oriented polyester film having a thickness in the range of 1 to 15μ, and F-5 value in the longitudinal direction in the range of 11 to 16 kg/mm 2 , refractive indices in each of the longitudinal and lateral directions in the range of 1.650 to 1.675, and a birefringence of not more than 0.02, possessing a rough surface on at least one side thereof, and said rough surface having a center line average height in the range of 0.02 to 1μ and a maximum height in the range of 0.2 to, 10μ.
Claim 2
Dependent Claim
120 words
An ink transfer material for printers, comprising a biaxially oriented polyester film and a transfer ink layer deposited on one side of said polyester film, said biaxially oriented polyester film having a thickness in the range of 1 to 15μ, and F-5 value in the longitudinal direction in the range of 11 to 16 kg/mm 2 , refractive indices in each of the longitudinal and lateral directions in the range of 1.650 to 1.675, and a birefringence of not more than 0.02, possessing a rough surface on at least one side thereof, and said rough surface having a center line average height in the range of 0.02 to 1μ and a maximum height in the range of 0.2 to, 10μ.
Claim 3
Dependent Claim
35 words
An ink transfer material according to claim 1, wherein said biaxially oriented polyester film contains 0.05 to 5% by weight of inorganic particles having an average particle diameter in the range of 0.02 to 20μ.
Claim 4
Dependent Claim
25 words
An ink transfer material according to claim 1, wherein said biaxially oriented polyester film has a thickness in the range of 2 to 10 μm.
Claim 5
Dependent Claim
33 words
An ink transfer material according to claim 1, wherein the F-5 value in the longitudinal direction of said biaxially oriented polyester film falls in the range of 11.5 to 15 kg/mm 2 .
Claim 6
Dependent Claim
34 words
An ink transfer material according to claim 1, wherein the refractive index in each of the longitudinal and lateral directions of said biaxially oriented polyester film falls in the range of 1.655 to 1.670.
Claim 7
Dependent Claim
22 words
An ink transfer material according to claim 1, wherein the birefringence of said biaxially oriented polyester film is not more than 0.015.
Claim 8
Dependent Claim
32 words
An ink transfer material according to claim 1, wherein the center line average height of said rough surface of said biaxially oriented polyester film falls in the range of 0.04 to 0.8μ.
Claim 9
Dependent Claim
30 words
An ink transfer material according to claim 1, wherein the maximum height of the coarse surface of said biaxially oriented polyester film falls in the range of 0.4 to 8μ.
Claim 10
Dependent Claim
20 words
An ink transfer material according to claim 1, wherein said transfer material is for use in a thermal transfer printer.
Claim 11
Dependent Claim
19 words
An ink transfer material according to claim 1, wherein said transfer material is for use in an impact printer.
Claim 12
Dependent Claim
16 words
An ink transfer material according to claim 1, wherein the polyester is a thermoplastic linear polyester.
Claim 13
Dependent Claim
62 words
An ink transfer material according to claim 11, wherein said thermoplastic polyester is the polycondensation products of (A) a dicarboxylic acid or an esterforming derivative thereof with (B) a glycol, and at least 80 mol % of said component (A) is a terephthalic acid or an ester-forming derivative thereof and at least 80 mol % of said component (B) is ethylene glycol.
Claim 14
Dependent Claim
16 words
An ink transfer material according to claim 11, wherein said thermoplastic linear polyester is polyethylene terephthalate.
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) | 1990-06-22 | 1990-12-22 | 1991-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-22 | 1994-12-22 | 1995-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-22 | 1998-12-22 | 1999-06-23 | $7700.00 | Window Closed / Lapsed |