US4057388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry heat process for dyeing and printing organic material which can be dyed with cationic dyestuffs
Assignee: Novartis AG
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Filing: 1976-04-12
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Granted: 1977-11-08
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Expires: 1996-04-12
Abstract
Abstract In a dry heat process for dyeing and printing of organic material which can be dyed with cationic dyestuffs, the improvement wherein at least one transferable salt of a cationic dyestuff with an acid having a pKs value greater than 3 is used for dyeing and printing.
Inventors
- 👤 Raymond DeFago
- 👤 Paul Schaffluetzel
- 👤 Arnulf Ruediger Lapple
- 👤 Bernard Hugelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:29
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/003; D06P5/004; C; C09; C09B; C09B29/00; C09B44/00; C09B44/02; C09B44/10; C09B44/20; C09B63/00; C09B67/00; C09B67/0071; C09B67/0075; C09B69/00; C09B69/02; C09B69/06; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S8/00; Y10S8/92; Y10S8/922; Y10S8/924; Y10S8/927; Y10S8/937; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31703; Y10T428/31855; Y10T428/3188; Y10T428/31971; Y10T428/31993; Y10T428/31996
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
142 words
In a dry heat transfer printing process which comprises A. bringing a treated face of an auxiliary carrier into contact with the surface of an organic material to be dyed, the treated face of the auxiliary carrier being dry and bearing at least one color layer which contains dyestuff which passes into the vapor state under the transfer process conditions, B. subjecting the carrier and the material while contacted to the action of heat for a sufficient time to effect transfer of the vaporizable dyestuff from the auxiliary carrier to the organic material to be dyed, and C. separating the organic material from the auxiliary carrier, the improvement according to which at least one color layer of the said auxiliary carrier contains at least one transferable salt of a cationic dyestuff with an acid having a pK s value greater than 3.
Claim 2
Dependent Claim
142 words
In a dry heat transfer printing process which comprises A. bringing a treated face of an auxiliary carrier into contact with the surface of an organic material to be dyed, the treated face of the auxiliary carrier being dry and bearing at least one color layer which contains dyestuff which passes into the vapor state under the transfer process conditions, B. subjecting the carrier and the material while contacted to the action of heat for a sufficient time to effect transfer of the vaporizable dyestuff from the auxiliary carrier to the organic material to be dyed, and C. separating the organic material from the auxiliary carrier, the improvement according to which at least one color layer of the said auxiliary carrier contains at least one transferable salt of a cationic dyestuff with an acid having a pK s value greater than 3.
Claim 3
Dependent Claim
105 words
A process according to claim 1, wherein at least one printing ink which contains at least one salt of a cationic dyestuff with an acid having a pK s value greater than 3, optionally a binder which is stable below 230° C, water and/or an organic solvent, is applied to an inert carrier and dried, the treated side of the carrier is brought into contact with the surface of the organic material to be dyed, the carrier and material are subjected to the action of heat for 5 to 60 second at 120° to 210° C, and the dyed material is removed from the carrier.
Claim 4
Dependent Claim
24 words
A process according to claim 2, wherein as cationic dye salt there is used a salt of a lower aliphatic monocarboxylic or dicarboxylic acid.
Claim 5
Dependent Claim
22 words
A process according to claim 3, wherein as cationic dye salt there is used a salt of a lower aliphatic monocarboxylic acid.
Claim 6
Dependent Claim
26 words
A process according to claim 4, wherein the salt of a lower aliphatic monocarboxylic acid is selected from the group consisting of formates, acetates and lactates.
Claim 7
Dependent Claim
23 words
A process according to claim 4, wherein a salt of an inorganic acid having a pK s value greater than 3 is used.
Claim 8
Dependent Claim
17 words
A process according to claim 6, wherein a cyanuric acid salt of a cationic dyestuff is used.
Claim 9
Dependent Claim
21 words
A process according to claim 6 wherein the salt is a member of the group consisting of cyantes, thiocyanates and cyanides.
Claim 10
Dependent Claim
30 words
A process according to claim 6, wherein the salt is a member of the group consisting of phosphates, phosphites, borates, sulphites, silicates, carbonates, bicarbonates, chromates, fluorides, aluminates, sulphides and iodates.
Claim 11
Dependent Claim
19 words
A process according to claim 2, wherein a sulphonic or sulphinic acid salt of a cationic dyestuff is used.
Claim 12
Dependent Claim
13 words
A process according to claim 10 wherein a methanesulphonate or methanesulphinate is used.
Claim 13
Dependent Claim
18 words
A process according to claim 2, wherein an alcoholate, phenolate, or thiophenolate of a cationic dyestuff is used.
Claim 14
Dependent Claim
72 words
A process according to claim 2, wherein the printing ink consists of at least one salt of a strong inorganic acid or of a metal halide double salt of a cationic dyestuff and an alkaline earth or alkali salt of an acid having a pK s value greater than 3, and optionally an organosoluble binder which is stable below 230° C, in the form of a suspension in a hydrophobic organic solvent.
Claim 15
Dependent Claim
84 words
A process according to claim 13, wherein the printing ink contains as alkali salt of an acid having a pK s value greater than 3, trisodium phosphate, sodium tripolyphosphate, sodium pyrophosphate, sodium phosphite, sodium tetraborate, sodium metaborate, sodium sulphite, potassium metasilicate, sodium carbonate, sodium bicarbonate, potassium chromate, sodium fluoride, sodium sulphide, potassium sulphide, potassium iodate, sodium cyanide, sodium cyanate, potassium thiocyanate, sodium methanesulphate, sodium methanesulphinate, lithium, sodium or potassium acetate, sodium formate, sodium lactate, sodium methanolate, potassium ethanolate, sodium or potassium phosphate or thiphosphate.
Claim 16
Dependent Claim
43 words
A process according to claim 13, wherein the printing ink contains in addition at least one disperse dyestuff which passes over into the vapour state to at least 60 % in less than 60 seconds at atmospheric pressure between 160° and 220° C.
Claim 17
Dependent Claim
23 words
A process according to claim 2, wherein polyacylonitrile or modacryl fibers are used as organic material which can be dyed with cationic dyestuffs.
Claim 18
Dependent Claim
34 words
A process according to claim 2, wherein the inert carrier and the organic material to be dyed are subjected to the action of heat for 10 to 40 seconds at 170° to 190° C.
Claim 19
Dependent Claim
95 words
An auxiliary carrier for carrying out the dry heat process according to claim 2, which comprises an inert, flexible, heat stable sheet material having applied to at least one face thereof at least one dyeing preparation comprising at least one salt of a strong inorganic acid or of a metal halide double salt of a cationic dyestuff and an alkaline earth alkali salt of an acid having a pK s value greater than 3 and optionally a binder which is stable below 230° C in the form of a suspension in a hydrophobic orgainc solvent.
Claim 20
Dependent Claim
95 words
An auxiliary carrier for carrying out the dry heat process according to claim 13, which comprises an inert, flexible, heat stable sheet material having applied to at least one face thereof at least one printing ink comprising at least one salt of a strong inorganic acid or of a metal halide double salt of a cationic dyestuff and an alkaline earth alkali salt of an acid having a pK s value greater than 3, and optionally a binder which is stable below 230° C in the form of a suspension in a hydrophobic organic solvent.
Claim 21
Dependent Claim
17 words
An auxiliary inert carrier according to claim 18, which consists of paper an aluminum foil or steel.
Claim 22
Dependent Claim
13 words
An auxiliary carrier according to claim 20, wherein cellulose parchment paper is employed.
Claim 23
Dependent Claim
40 words
An auxiliary carrier according to claim 18, which is treated with at least one organic printing ink which contains a cellulose ether or ester as binder, or with at least one aqueous printing ink which contains polyvinyl alcohol as binder.
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) | 1980-11-07 | 1981-05-09 | 1981-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-07 | 1985-05-09 | 1985-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-07 | 1989-05-09 | 1989-11-08 | $7700.00 | Window Closed / Lapsed |