Patent US4040779A successfully refreshed from Google Patents.
US4040779A
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US
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Dry heat process to dyeing and printing organic material which can be dyed with cationic dyes
Assignee: Novartis AG
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Filing: 1975-06-11
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Granted: 1977-08-09
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Expires: 1995-06-11
Abstract
Abstract A dry heat process for dyeing and printing organic material which can be dyed with cationic dyes, which process comprises the use of carbinol bases of cationic dyes or derivatives thereof, together with at least one indicator dye.
Inventors
- 👤 Peter Loew
- 👤 Raymond DeFago
- 👤 Stefan Koller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:39
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/385; C; C09; C09B; C09B11/00; C09B57/00; C09B57/06; D; D06; D06P; D06P5/00; D06P5/003; D06P5/004
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
77 words
A dyestuff composition for use in the dry heat transfer printing process which comprises a member selected from the group consisting of water, organic solvent and mixtures thereof, said member having dispersed or dissolved therein at least one heat transferable carbinol base of cationic dye or a derivative thereof and an indicator dye which does not exhibit acid reaction and which possesses the same shade as that of the carbinol base after conversion to its salt form.
Claim 2
Dependent Claim
77 words
A dyestuff composition for use in the dry heat transfer printing process which comprises a member selected from the group consisting of water, organic solvent and mixtures thereof, said member having dispersed or dissolved therein at least one heat transferable carbinol base of cationic dye or a derivative thereof and an indicator dye which does not exhibit acid reaction and which possesses the same shade as that of the carbinol base after conversion to its salt form.
Claim 3
Dependent Claim
18 words
A composition according to claim 1 which additionally contains a binder which is heat stable below 230° C.
Claim 4
Dependent Claim
42 words
A carrier for use in the dry heat transfer process which comprises a flexible inert base sheet having applied to at least a portion of at least one face thereof a dyestuff composition according to claim 1 said composition being subsequently dried.
Claim 5
Dependent Claim
18 words
A carrier according to claim 3 wherein the base sheet is parchment paper, aluminum foil or steel foil.
Claim 6
Dependent Claim
20 words
A carrier according to claim 3 wherein the dyestuff composition contains a binder which is heat stable below 230° C.
Claim 7
Dependent Claim
20 words
A carrier according to claim 5 wherein the binder is a cellulose ether or ester, polyvinyl alcohol or mixtures thereof.
Claim 8
Dependent Claim
33 words
A carrier according to claim 5 wherein the binder employed dries rapidly to form a fine film on the carrier and is not transferred to the printing substrate under conditions of transfer printing.
Claim 9
Dependent Claim
92 words
A method for the dry heat transfer printing and dyeing of organic material which can be dyed with cationic dyes which comprises bringing a treated face of a carrier according to claim 3 into contact with the surface of an organic material which can be dyed with cationic dyes, subjecting the carrier and material while in contact to heat treatment of from 150° C. to 230° C. for a period of from 5 to 60 seconds to effect transfer of carbinol base to the material and separating the material from the carrier.
Claim 10
Dependent Claim
34 words
A process according to claim 8 which comprises the use of carbinol bases of cationic dyes, or derivatives thereof, the chromophoric systems of which are derived from cationic diphenylmethane, triphenylmethane, diphenylindolyl and naphtholactam dyes.
Claim 11
Dependent Claim
20 words
A process according to claim 9 which comprises the use of carbinol bases, or derivatives thereof, of the triphenylmethane class.
Claim 12
Dependent Claim
76 words
A process according to claim 8 which comprises the use of carbinol bases of naphtholactam dyes, or derivatives thereof, of the formula ##STR63## wherein R and Z are substituted or unsubstituted alkyl, cycloalkyl, aryl or aralkyl or Z is hydrogen, K is the radical of a compound which is able to couple, Y is lower alkyl, cyano or hydrogen and n is 1 or 2 and wherein the rings A and B are substituted or unsubstituted.
Claim 13
Dependent Claim
58 words
A process according to claim 8 which comprises the use of carbinol bases, or derivatives thereof, of the formula ##STR64## wherein Ar is an aromatic radical and each of R 1 , R 2 and Z is a substituted or an unsubstituted alkyl, aryl, cycloalkyl or aralkyl group or hydrogen, and A and B are substituted or unsubstituted.
Claim 14
Dependent Claim
107 words
A process according to claim 12 which comprises the use of carbinol bases, or derivatives thereof, of the formula set forth, wherein Ar is a phenylene radical which is unsubstituted or substituted by low molecular alkyl or alkoxy groups, R 1 and R 2 and z are low molecular alkyl radicals or radicals of the benzene class and Z is halogen, and the radicals R 1 and R 2 are unsubstituted or substituted by halogen, cyano, alkoxy of 1 to 4 carbon atoms, alkyl or 1 to 4 carbon atoms, alkanoyl of 1 to 4 carbon atoms, alkanoyl of 1 to 4 carbon atoms, benzoyl or carboxy.
Claim 15
Dependent Claim
61 words
A process according to claim 12 which comprises the use of carbinol bases of the formula set forth, wherein R 1 and R 2 are cyclohexyl, cyclopentyl, benzyl and β-phenylethyl, or R 1 and R 2 are linked together and form part of a saturated heterocyclic ring system or with an unsubstituted position in the aromatic ring form a heterocyclic ring.
Claim 16
Dependent Claim
56 words
A process according to claim 8 which comprises the use of carbinol bases, or derivatives thereof, of the formula ##STR65## wherein R 3 and Z are hydrogen, aryl, aralkyl or substituted or unsubstituted alkyl or alkenyl, R 4 is hydrogen, aryl or low molecular alkoxy or halogen, and R, A and B are substituted or substituted.
Claim 17
Dependent Claim
58 words
A process according to claim 15 which comprises the use of carbinol bases, or derivatives thereof, of the formula set forth, wherein R 3 is a phenyl, tolyl, benzyl, β-phenylethyl radical or an alkyl or alkenyl radical of 1 to 18 carbon atoms which is unsubstituted or substituted by chlorine, cyano or low molecular carbalkoxy or alkylcarbonamide groups.
Claim 18
Dependent Claim
25 words
A process according to claim 8 which comprises the use of 0.1 to 10% of indicator dye, based on the carbinol bases or derivatives thereof.
Claim 19
Dependent Claim
30 words
A process according to claim 8 which comprises the use of indicator dyes in the salt form of the cationic dyes which correspond to the carbinol bases of cationic dyes.
Claim 20
Dependent Claim
28 words
A process according to claim 8 which comprises the use of indicator dyes which correspond to the shades which are obtained after transfer printing onto the printing substrate.
Claim 21
Dependent Claim
25 words
A process according to claim 8 which comprises the use of polyacrylonitrile or modacryl fibres as organic material which can be dyed with cationic dyes.
Claim 22
Dependent Claim
33 words
A process according to claim 8 which comprises subjecting carrier and organic material to be dyed to a heat treatment of 120° C. to 210° C. for 5 to 40 seconds under vacuum.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |