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US4568350A
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US
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Cold pad-batch process for dyeing silk or silk-containing fiber blends with reactive dyes
Assignee: Novartis Corp
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Filing: 1984-04-16
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Granted: 1986-02-04
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Expires: 2004-04-16
Abstract
Abstract A process for dyeing silk or silk-containing fiber blends with reactive dyes, which comprises dyeing or impregnating said material with a reactive dye of the formula D--Y].sub.n wherein D is the radical of a sulfo group containing dye of the mono- or polyazo, metal complex azo, anthraquinone, phthalocyanine, formazane, azomethine, dioxazine, phenazine, stilbene, triphenylmethane, xanthene, thioxanthone, nitroaryl, naphthoquinone, pyrenequinone or perylenetetracarbimide series, [Y] n , where n is 1 to 4, denotes identical or different reactive radicals Y, in aqueous medium at a pH value above 8, without the addition of a dispersant or swelling agent, and in the temperature range from 20° to 40° C. for 6 to 48 hours, and storing the impregnated goods in the moist state for 6 to 48 hours at a temperature from 20° to 60° C. Dyeings with good fastness properties are obtained with this process.
Inventors
- 👤 Rudolf Rohrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:13
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/02; D06P3/04; D06P3/10; C; C09; C09B; C09B62/00; C09B62/44; C09B62/4401; C09B62/443; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
134 words
A process for dyeing a material selected from the group consisting of silk and silk-containing fibre blends with reactive dyes, which consists essentially of impregnating said material with an impregant consisting essentially of a reactive dye of the formula D--Y].sub.n ( 1) wherein D is the radical of a sulfo group containing dye of the mono- or polyazo, metal complex azo, anthraquinone, phthalocyanine, formazane, azomethine, dioxazine, phenazine, stilbene, triphenylmethane, xanthene, thioxanthone, nitroaryl, naphthoquinone, pyrenequinone or perylenetetracarbimide series, and [Y] n , where n is 1 to 4, denotes identical or different reactive radicals Y, in aqueous medium at a pH value above 8, without the addition of urea, thiourea or sodium cyanoacetate, and storing the impregnated material in a moist state for 6 to 48 hours at a temperature from 20° to 60° C.
Claim 2
Dependent Claim
134 words
A process for dyeing a material selected from the group consisting of silk and silk-containing fibre blends with reactive dyes, which consists essentially of impregnating said material with an impregant consisting essentially of a reactive dye of the formula D--Y].sub.n ( 1) wherein D is the radical of a sulfo group containing dye of the mono- or polyazo, metal complex azo, anthraquinone, phthalocyanine, formazane, azomethine, dioxazine, phenazine, stilbene, triphenylmethane, xanthene, thioxanthone, nitroaryl, naphthoquinone, pyrenequinone or perylenetetracarbimide series, and [Y] n , where n is 1 to 4, denotes identical or different reactive radicals Y, in aqueous medium at a pH value above 8, without the addition of urea, thiourea or sodium cyanoacetate, and storing the impregnated material in a moist state for 6 to 48 hours at a temperature from 20° to 60° C.
Claim 3
Dependent Claim
64 words
A process according to claim 1, which comprises impregnating silk or silk-containing fibre blends with a reactive dye of the formula (1), wherein D, Y and n are as defined in claim 1, in an aqueous padding liquor at a pH value above 8, and storing the treated goods in the moist state for 24 hours at a temperature from 20° to 60° C.
Claim 4
Dependent Claim
29 words
A process according to claim 1, which comprises the use of a reactive dye of the formula (1), wherein D is the radical of a monoazo or disazo dye.
Claim 5
Dependent Claim
18 words
A process according to claim 1, wherein D is the radical of a heavy metal azo dye complex.
Claim 6
Dependent Claim
27 words
A process according to claim 1, which comprises the use of a reactive dye of the formula (1), wherein D is the radical of an anthraquinone dye.
Claim 7
Dependent Claim
38 words
A process according to claim 1, which comprises the use of a reactive dye of the formula (1), wherein D is the radical of a copper or nickel phthalocyanine, of a copper formazan complex or of a triphendioxazine.
Claim 8
Dependent Claim
60 words
A process according to claim 4, which comprises the use of a reactive dye of the formula (1), wherein D is the radical of a 1:2 chromium or 1:2 cobalt complex azo dye of the benzene or naphthalene series, the chromium or cobalt atom being attached in each case to a metallisable group in the ortho-position to the azo bond.
Claim 9
Dependent Claim
164 words
A process according to claim 3, which comprises the use of a reactive dye of the formula [D.sub.1 --N═N--K]--Q--Y].sub.n ( 2) wherein D 1 is the radical of a diazo component of the benzene or naphthalene series, K is the radical of a coupling component of the benzene, naphthalene or heterocyclic series, Q is a direct bond, an aminobenzoylamino group or a bridge member --N(R)--, in which R is hydrogen or unsubstituted or substituted C 1 -C 4 alkyl, Y and n are as defined in claim 4, and the reactive radical is attached to the diazo component or to the coupling component, or both the diazo component and the coupling component each carry one or two reactive radicals, or two reactive radicals are attached to the coupling component or to the diazo component, or two reactive radicals are attached to the diazo component or to the coupling component, and one reactive dye is attached to the coupling component or to the diazo component.
Claim 10
Dependent Claim
24 words
A process according to claim 8, which comprises the use of a reactive dye of the formula (2), wherein R is hydrogen or methyl.
Claim 11
Dependent Claim
28 words
A process according to claim 1, which comprises the use of a reactive dye of the formula (1), wherein Y is vinylsulfonyl, sulfatoethylsulfonyl, α-bromoacryloyl, α,β-dibromopropionyl, halopyrimidinyl or halotriazinyl.
Claim 12
Dependent Claim
43 words
A process according to claim 10, which comprises the use of a reactive dye of the formula (1), wherein Y is 2,4-difluoro-5-chloropyrimid-6-yl, 2-methylphenylamino-, 2-sulfophenylamino- or 2-chlorophenylamino-4-fluoro-1,3,5-triazin-6-yl, 2-[N-ethyl-N-(methylphenyl- or chlorophenyl- or sulfophenyl)amino]-4-fluoro-1,3,5-triazine-6-yl, 2-[N-methyl-N-(methlyphenyl- or chlomophenyl or sulfophenyl)amino]-4-fluoro-1,3,5-triazin-6-yl, α,β-dibromopropionyl, α-bromoacryloyl, 2-(β-chloroethylsulfonylethylamino)-4-fluoro-1,3,5-triazin-6-yl, 2,4-dichloropyrimidinyl-5-carbonyl, 2-chloro-4-isopropoxy-1,3,5-triazin-6-yl or 2-methoxy-4-fluoro-1,3,5-triazin-6-yl.
Claim 13
Dependent Claim
24 words
A process according to claim 11, which comprises the use of a reactive dye of the formula (1), wherein Y is α,β-dibromopropionyl or α-bromoacryloyl.
Claim 14
Dependent Claim
15 words
A process according to claim 1, wherein the pH is adjusted to 9 to 10.
Claim 15
Dependent Claim
17 words
A process according to claim 1, wherein the material is impregnated in the presence of a thickener.
Claim 16
Dependent Claim
25 words
A process according to claim 1, wherein the material is impregnated with a padding liquor at a liquor to goods ratio of 1:0.7 to 1:1.3.
Claim 17
Dependent Claim
37 words
A process according to claim 1, which further comprises washing the dyed goods with an aqueous wash liquor at a pH of 8.5 to 9 and at elevated temperature, optionally in the presence of a nonionic detergent.
Claim 18
Dependent Claim
13 words
A process according to claim 14, wherein the thickener is an alginate thickener.
Claim 19
Dependent Claim
19 words
A process according to claim 16, wherein the elevated temperature is in the range from 70° to 85° C.
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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) | 1989-02-03 | 1989-08-05 | 1990-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-03 | 1993-08-05 | 1994-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-03 | 1997-08-05 | 1998-02-04 | $7700.00 | Window Closed / Lapsed |