US4066810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat printing sheet and heat printing method
Assignee: Tosoh Corp
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Filing: 1976-03-31
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Granted: 1978-01-03
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Expires: 1996-03-31
Abstract
Abstract A heat printing sheet having a pattern of a hot melt ink composition on a base, the improvement comprising using a hot melt ink composition which comprises 5-60 wt. parts of a base polymer of ethylene-vinyl acetate copolymer having 5-50 wt. % of the vinyl acetate content and 4-1000 g/10 min. of a melt index or a mixture of said ethylene-vinyl acetate substituted with 10-60 wt. % of the other polymer; and 20-80 wt. parts of a tackifier selected from terpene resins, hydrogenated dicyclopentadiene resins, lower styrene resins, rosins, rosin polyol esters, hydrogenated rosin and rosin polyol esters and alicyclic hydrocarbon resins and 0.1-30 wt. parts of a pigment or dye, and the hot melt ink composition is melted at 80 DEG -250 DEG C and is coated on an engraved roll and is instantaneously printed on a base of synthetic polymer film having 10-100 of a thickness and smooth surface under 0.5-10 Kg/cm2 (gauge) to form the pattern of the hot melt ink composition having 10-3000 of a thickness.
Inventors
- 👤 Yujiro Kosaka
- 👤 Masaru Uemura
- 👤 Hitoshi Kuroki
- 👤 Kanji Otomo
- 👤 Yoshiaki Terauchi
- 👤 Yasuo Arai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:11
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/003; D06P5/007; D06P5/009; B; B41; B41M; B41M5/00; B41M5/025; B41M5/035; B41M5/0356; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901; Y10T428/26; Y10T428/263; Y10T428/266; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
188 words
A heat printing sheet which is prepared by the process consisting essential of a. melting a hot melt ink at a temperature of 80°-250° C; b. coating said hot melt ink on an engraved roll and instantaneously printing said hot melt ink on a synthetic polymer film having a thickness of 10-100μ and a smooth surface under a gauge pressure of 0.5-10 Kg/cm 2 to form a pattern of hot melt ink having a thickness of 10-300μ; wherein said hot melt ink composition comprises: - 60weight parts of a base polymer of an ethylenevinyl acetate copolymer having 5-50 weight percent of the vinyl acetate content and 4-1000 g/10 min. of a melt index or a mixture of said ethylene-vinyl acetate and 5-60 weight percent of at least one member selected from the group consisting of styrene-butadiene copolymer, ethylene-acrylate copolymer, ethylene-isobutyl acrylate copolymer, cellulose derivatives, polyesters, polymethylmethacrylate; polyvinyl ethers and urethane; 20-80 weight parts of a tackifier selected from terpene resins, hydrogenated dicyclopentadiene resins, lower styrene resins, rosins, rosin polyol esters, hydrogenated rosin and rosin polyol esters and alicyclic hydrocarbon resins; 0.1-30 weight parts of a pigment or dye.
Claim 2
Dependent Claim
188 words
A heat printing sheet which is prepared by the process consisting essential of a. melting a hot melt ink at a temperature of 80°-250° C; b. coating said hot melt ink on an engraved roll and instantaneously printing said hot melt ink on a synthetic polymer film having a thickness of 10-100μ and a smooth surface under a gauge pressure of 0.5-10 Kg/cm 2 to form a pattern of hot melt ink having a thickness of 10-300μ; wherein said hot melt ink composition comprises: - 60weight parts of a base polymer of an ethylenevinyl acetate copolymer having 5-50 weight percent of the vinyl acetate content and 4-1000 g/10 min. of a melt index or a mixture of said ethylene-vinyl acetate and 5-60 weight percent of at least one member selected from the group consisting of styrene-butadiene copolymer, ethylene-acrylate copolymer, ethylene-isobutyl acrylate copolymer, cellulose derivatives, polyesters, polymethylmethacrylate; polyvinyl ethers and urethane; 20-80 weight parts of a tackifier selected from terpene resins, hydrogenated dicyclopentadiene resins, lower styrene resins, rosins, rosin polyol esters, hydrogenated rosin and rosin polyol esters and alicyclic hydrocarbon resins; 0.1-30 weight parts of a pigment or dye.
Claim 3
Dependent Claim
38 words
In a method of heat printing a pattern onto a substrate which comprises plying said substrate with a heat printing sheet and applying heat and pressure, the improvement which comprises using the heat printing sheet of claim 1.
Claim 4
Dependent Claim
19 words
The heat printing sheet of claim 1, wherein the base is a polyester film having a thickness of 10-100μ.
Claim 5
Dependent Claim
24 words
The heat printing sheet of claim 1, wherein two or more hot melt ink compositions are respectively heat-printed to form a continuous tone pattern.
Claim 6
Dependent Claim
29 words
The heat printing sheet of claim 1, wherein the hot melt ink composition is printed by a photogravure type coated equipped with an ink pen and a doctor heater.
Claim 7
Dependent Claim
175 words
In hot printing a pattern of a hot melt ink composition onto a base, the improvement which comprises using a hot melt ink composition comprising: 5-60 wt parts of a base polymer of ethylene-vinyl acetate copolymer having 5-50 wt % of the vinyl acetate content and 4-1000 g/10 min of a melt index or a mixture of said ethylene-vinyl acetate substituted with 5-60 wt % of at least one member selected from the group consisting of styrene-butadiene copolymer, ethylene-acrylate copolymer, ethylene-isobutyl acrylate copolymer, cellulose derivatives, polyesters, polymethylmethacrylate, polyvinyl ethers and urethane; 20-80 wt parts of a tackifier selected from terpene resins, hydrogenated rosin and rosin polyol esters and alicyclic hydrocarbon resins; 0.1-30 wt parts of a pigment or dye, the holt melt ink composition is melted at 80°-250° C and is coated on an engraved roll and is instantaneously printed on a base of synthetic polymer film having a thickness of 10-100μ and smooth surface under 0.5-10 kg/cm 2 (gauge) to form the pattern of the hot melt ink composition having a thickness of 10-300μ.
Claim 8
Dependent Claim
175 words
In hot printing a pattern of a hot melt ink composition onto a base, the improvement which comprises using a hot melt ink composition comprising: 5-60 wt parts of a base polymer of ethylene-vinyl acetate copolymer having 5-50 wt % of the vinyl acetate content and 4-1000 g/10 min of a melt index or a mixture of said ethylene-vinyl acetate substituted with 5-60 wt % of at least one member selected from the group consisting of styrene-butadiene copolymer, ethylene-acrylate copolymer, ethylene-isobutyl acrylate copolymer, cellulose derivatives, polyesters, polymethylmethacrylate, polyvinyl ethers and urethane; 20-80 wt parts of a tackifier selected from terpene resins, hydrogenated rosin and rosin polyol esters and alicyclic hydrocarbon resins; 0.1-30 wt parts of a pigment or dye, the holt melt ink composition is melted at 80°-250° C and is coated on an engraved roll and is instantaneously printed on a base of synthetic polymer film having a thickness of 10-100μ and smooth surface under 0.5-10 kg/cm 2 (gauge) to form the pattern of the hot melt ink composition having a thickness of 10-300μ.
Claim 9
Dependent Claim
19 words
The hot printing method of claim 6, wherein the base is a polyester film having a thickness of 10-100μ.
Claim 10
Dependent Claim
24 words
The hot printing method of claim 6, wherein two or more hot melt ink compositions are respectively heat-printed to form a continuous tone pattern.
Claim 11
Dependent Claim
29 words
The hot printing method of claim 6, wherein the hot melt ink composition is printed by a photogravure type coater equipped with an ink pen and a doctor heater.
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) | 1981-01-02 | 1981-07-04 | 1982-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-02 | 1985-07-04 | 1986-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-02 | 1989-07-04 | 1990-01-03 | $7700.00 | Window Closed / Lapsed |