US4027345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer printing
Assignee: Toyobo Co Ltd
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Filing: 1975-06-12
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Granted: 1977-06-07
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Expires: 1995-06-12
Abstract
Abstract A method of transfer printing, wherein a release layer is formed on a temporary support; printing a pattern on said release layer with an ink containing coloring matter therein to obtain a transfer sheet; superposing an article to be transfer-printed on the printed surface of said transfer sheet; heating the superposed aggregate under pressure to transfer the release layer with the pattern onto said article to be transfer-printed; fixing the coloring matter to said article, and then soaping said article to remove the release layer, characterized in that the release layer consists of (1) 10-90 wt. percent of one or more thermoplastic polymers having excellent film-forming properties and water-solubility or alkaline water solubility as well as organic solvent solubility and (2) 90 to 10 wt. percent of one or more plasticizers having a melting point between 30° and 120° C selected from oxycarboxylic acids or their derivatives having water solubility or alkaline water solubility as well as organic solvent solubility.
Inventors
- 👤 Michio Fujisawa
- 👤 Hatsuo Matsumoto
- 👤 Shuzo Sawada
- 👤 Kiyoshi Yamane
- 👤 Hideo Kato
- 👤 Takayuki Shimizu
- 👤 Shigeo Kato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:04
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/025; B41M5/035; D; D06; D06P; D06P5/00; D06P5/003; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
232 words
In a method of transfer printing which comprises forming a release layer on a temporary support; printing a pattern on said release layer with an ink containing coloring matter therein to obtain a transfer sheet; superposing an article to be transfer-printed on the printed surface of said transfer sheet; heating the superposed aggregate under pressure to transfer the release layer with the pattern onto said article to be transfer-printed; fixing the coloring matter to said article, and then soaping said article to remove the release layer; the improvement wherein the release layer consists essentially of 1. 10 to 90 weight percent of one or more thermoplastic polymers having excellent film-forming properties, water-solubility or alkaline water-solubility and organic solvent-solubility and having a softening point of between 60° and 200° C, said polymers being selected from the group consisting of hydroxypropyl cellulose, hydroxypropyl-hydroxyethyl cellulose, hydroxypropyl-methyl cellulose phthalate, hydroxypropyl-hydroxyethyl cellulose phthalate and vinyl copolymers consisting of an ethylenically unsaturated mono- or dicarboxylic acid and another ethylenically unsaturated monomer copolymerizable therewith and, 2 90 to 10 weight percent of one or more water-soluble or alkaline water-soluble and organic solvent-soluble oxycarboxylic acids and derivatives as plasticizers having a melting point between 30° and 120° C, said plasticizer being selected from the group consisting of 12-hydroxystearic acid, 2-hydroxypalmitic acid, 11-hydroxypalmitic acid, 14-hydroxypalmitic acid, 16-hydroxypalmitic acid, 2-hydroxytetradecanoic acid, 11-hydroxytetradecanoic acid, 2-hydroxydodecanoic acid, ω-hydroxylauric acid, 3,11-dihydroxytetradecanoic acid and 9,10-dihydroxyundecanoic acid.
Claim 2
Dependent Claim
232 words
In a method of transfer printing which comprises forming a release layer on a temporary support; printing a pattern on said release layer with an ink containing coloring matter therein to obtain a transfer sheet; superposing an article to be transfer-printed on the printed surface of said transfer sheet; heating the superposed aggregate under pressure to transfer the release layer with the pattern onto said article to be transfer-printed; fixing the coloring matter to said article, and then soaping said article to remove the release layer; the improvement wherein the release layer consists essentially of 1. 10 to 90 weight percent of one or more thermoplastic polymers having excellent film-forming properties, water-solubility or alkaline water-solubility and organic solvent-solubility and having a softening point of between 60° and 200° C, said polymers being selected from the group consisting of hydroxypropyl cellulose, hydroxypropyl-hydroxyethyl cellulose, hydroxypropyl-methyl cellulose phthalate, hydroxypropyl-hydroxyethyl cellulose phthalate and vinyl copolymers consisting of an ethylenically unsaturated mono- or dicarboxylic acid and another ethylenically unsaturated monomer copolymerizable therewith and, 2 90 to 10 weight percent of one or more water-soluble or alkaline water-soluble and organic solvent-soluble oxycarboxylic acids and derivatives as plasticizers having a melting point between 30° and 120° C, said plasticizer being selected from the group consisting of 12-hydroxystearic acid, 2-hydroxypalmitic acid, 11-hydroxypalmitic acid, 14-hydroxypalmitic acid, 16-hydroxypalmitic acid, 2-hydroxytetradecanoic acid, 11-hydroxytetradecanoic acid, 2-hydroxydodecanoic acid, ω-hydroxylauric acid, 3,11-dihydroxytetradecanoic acid and 9,10-dihydroxyundecanoic acid.
Claim 3
Dependent Claim
53 words
The method as claimed in claim 1 wherein said thermoplastic polymers used in the release layer composition, are vinyl copolymers consisting of 5-20 mol %, of acrylic acid or methacrylic acid and 95-80 mol % of a copolymerizable ethylenically unsaturated monomer composed of an acrylic acid ester, methacrylic acid ester or mixtures thereof.
Claim 4
Dependent Claim
37 words
A method as in claim 2 wherein the acrylic acid or methacrylic acid is present in the copolymer in amounts of 10-15 mol % and the ethylenically unsaturated monomer is present in amounts of 90-85 mol %.
Claim 5
Dependent Claim
36 words
The method as claimed in claim 1 wherein the release layer is formed of a composition consisting of 30-90 weight percent of one or more thermoplastic polymers and 70-10 weight percent of one or more plasticizers.
Claim 6
Dependent Claim
21 words
The method as claimed in claim 4 wherein the release layer composition has a softening point between 50° and 150° C.
Claim 7
Dependent Claim
21 words
The method as claimed in claim 4, wherein the release layer composition has a softening point between 70° and 120° C.
Claim 8
Dependent Claim
24 words
The method as claimed in claim 1 wherein the temporary support is selected from the group consisting of papers, plastic films and metallic foils.
Claim 9
Dependent Claim
40 words
The method as claimed in claim 1 wherein the coloring matter is selected from the group consisting of acid dyes, acid mordant dyes, basic dyes, cationic dyes, direct dyes, naphthol dyes, vat dyes, sulfur dyes, reactive dyes and disperse dyes.
Claim 10
Dependent Claim
24 words
The method as claimed in claim 1 wherein a water-soluble or alkaline-water-soluble and organic-solvent-soluble thermoplastic polymer is used as a binder for the ink.
Claim 11
Dependent Claim
119 words
The method as claimed in claim 1 wherein the article to be transfer-printed is any of textile goods selected from the group consisting of woven fabric, knitted fabric, non-woven fabric, spun-bonded fabric and carpet or rug, composed of natural or regenerated cellulose fibers selected from the group consisting of cotton, hemp, rayon; protein fibers selected from the group consisting of wool and silk; cellulose acetate fibers; protein-acrylonitrile graft copolymer fibers; synthetic fibers selected from the group consisting of a polyester, polyamide, polyurethane, polyacrylonitrile and mixtures of these fibers; and sheet-shaped articles selected from the group consisting of films, boards, tapes, leathers and synthetic papers composed of resins selected from the group consisting of acetates, polyesters, polyamides, polyolefins and polyurethanes.
Claim 12
Dependent Claim
68 words
The method as claimed in claim 1 wherein the article to be transfer-printed placed on the printed surface of the transfer sheet is heated under pressure between calender rolls at a temperature between 80° and 180° C., at a pressure between 1 and 100 kg/cm 2 , for a period of time from an instant to several seconds, to transfer the pattern onto the article to be transfer-printed.
Claim 13
Dependent Claim
32 words
A method according to claim 11 wherein the transfer sheet is heated between the calender rolls at a temperature between 100° and 150° C at a pressure of 50 kg/cm 2 .
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) | 1980-06-06 | 1980-12-06 | 1981-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-06 | 1984-12-06 | 1985-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-06 | 1988-12-06 | 1989-06-07 | $7700.00 | Window Closed / Lapsed |