Patent CH234640A successfully refreshed from Google Patents.
Patent US4066395A successfully refreshed from Google Patents.
US4066395A
Expired / Lapsed
US
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Process for dyeing or printing aromatic polyamide fibres
Assignee: Novartis Corp
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Filing: 1975-11-26
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Granted: 1978-01-03
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Expires: 1995-11-26
Abstract
Abstract A process for dyeing or printing aromatic polyamide fibres with cationic dyes in aqueous medium, wherein the medium contains A. a carrier which contains no ketone-forming carbonyl groups, and B. an anionic assistant. The process of the invention is especially suitable to obtain wilt cationic dyes dyeings having a color yield of 2 to 10 times greater than that obtained by using the same dye liquor but without the addition of any anionic assistant.
Inventors
- 👤 Charles Soiron
- 👤 Karlheinz Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:59
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/62; D06P1/60; D06P1/613; D06P1/6131; D06P1/6135; D06P1/64; D06P1/651; D06P1/65106; D06P1/65118; D06P1/65125; D06P1/6515; D06P1/667; D06P3/00; D06P3/02; D06P3/04; D06P3/24; D06P3/242; Y; Y10; Y10S; Y10S8/00; Y10S8/908; Y10S8/92; Y10S8/924; Y10S8/925
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
124 words
In a process for dyeing or printing aromatic polyamide fibers with a dye liquor comprising a cationic dye, water, and a non-ketonic carrier in an amount of 5 to 30 grams per liter of dye liquor, the improvement which comprises further including in the dye liquor 0.1 to 5 g. per liter of an anionic assistant selected from the group consisting of a sulfonated fatty alcohol of 8 to 22 carbon atoms, a sulfonated alkylnaphthalene containing an alkyl group of 8 to 22 carbon atoms, a sulfosuccinic acid alkyl ester containing an alkyl group of 8 to 22 carbon atoms, a dodecyldiphenyl ether disulfonic acid, a sulfonated castor oil, and dinitrobenzenesulfonate, as the free acid or as the alkali metal, ammonium or amine salt.
Claim 2
Dependent Claim
124 words
In a process for dyeing or printing aromatic polyamide fibers with a dye liquor comprising a cationic dye, water, and a non-ketonic carrier in an amount of 5 to 30 grams per liter of dye liquor, the improvement which comprises further including in the dye liquor 0.1 to 5 g. per liter of an anionic assistant selected from the group consisting of a sulfonated fatty alcohol of 8 to 22 carbon atoms, a sulfonated alkylnaphthalene containing an alkyl group of 8 to 22 carbon atoms, a sulfosuccinic acid alkyl ester containing an alkyl group of 8 to 22 carbon atoms, a dodecyldiphenyl ether disulfonic acid, a sulfonated castor oil, and dinitrobenzenesulfonate, as the free acid or as the alkali metal, ammonium or amine salt.
Claim 3
Dependent Claim
13 words
The process of claim 1, wherein the dyeing is carried out by exhaustion.
Claim 4
Dependent Claim
19 words
The process of claim 1, wherein the dyeing is carried out at a temperature of 50 to 140° C.
Claim 5
Dependent Claim
17 words
The process of claim 3, wherein the temperature is in the range of 80 to 98° C.
Claim 6
Dependent Claim
14 words
The process of claim 1, wherein the carrier is an aromatic carboxylic acid ester.
Claim 7
Dependent Claim
48 words
The process of claim 1, wherein the carrier is a glycol ether of the formula ##STR15## wherein R is phenyl or chlorophenyl, Z is hydrogen or methyl, and n is 1 to 3, and wherein each Z is independently hydrogen or methyl where n is 2 or 3.
Claim 8
Dependent Claim
12 words
The process of claim 5, wherein the carrier further comprises benzyl alcohol.
Claim 9
Dependent Claim
38 words
The process of claim 5, wherein the carrier is the reaction product of an average of 1 mole of ethyleneoxide per one mole of a mixture of 20% by weight of o-chlorophenol and 80% by weight of p-chlorophenol.
Claim 10
Dependent Claim
19 words
The process of claim 1, wherein the anionic assistant is an amine salt of a sulfonated long-chain fatty alcohol.
Claim 11
Dependent Claim
12 words
The process of claim 1, wherein the anionic assistant is dibutylnaphthalene sulfonate.
Claim 12
Dependent Claim
12 words
The process of claim 1, wherein the anionic assistant is dodecyl-diphenylether disulfonate.
Claim 13
Dependent Claim
11 words
The process of claim 1, wherein the anionic assistant is dioctyldisulfosuccinate.
Claim 14
Dependent Claim
13 words
The process of claim 1, wherein the anionic assistant is sulfonated castor oil.
Claim 15
Dependent Claim
92 words
A dye liquor or printing paste for dyeing or printing aromatic polyamide fibers comprising a cationic dye, water, non-ketonic carrier in an amount of 5 to 30 grams per liter and 0.1 to 5 grams per liter of an anionic assistant selected from the group consisting of sulfonated fatty alcohol of 8 to 22 carbon atoms, a sulfonated alkylnaphthalene containing an alkyl group of 8 to 22 carbon atoms, a dodecyl-diphenyl ether disulfonic acid, a sulfonated castor oil, and dinitrobenzenesulfonate, as the free acid or the alkali metal, ammonium or amine salt.
Claim 16
Dependent Claim
92 words
A dye liquor or printing paste for dyeing or printing aromatic polyamide fibers comprising a cationic dye, water, non-ketonic carrier in an amount of 5 to 30 grams per liter and 0.1 to 5 grams per liter of an anionic assistant selected from the group consisting of sulfonated fatty alcohol of 8 to 22 carbon atoms, a sulfonated alkylnaphthalene containing an alkyl group of 8 to 22 carbon atoms, a dodecyl-diphenyl ether disulfonic acid, a sulfonated castor oil, and dinitrobenzenesulfonate, as the free acid or the alkali metal, ammonium or amine salt.
Claim 17
Dependent Claim
12 words
Aromatic polyamide fibers dyed or printed by the process of claim 1.
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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) | 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 |