DE1277803B - Process for the production of combination colorings from sulfur dyes and reactive dyes on cellulose material - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

D06p

German KL: 8m- 1/04

Number:
File number:
Registration date:
Display day:

P 12 77 803.9-43 (C 31673)

December 13, 1963

19th September 1968

It is known that colorings produced with sulfur dyes with regard to the brilliance of the color tones to be improved by putting them in a second bath with nouns after they have been completed or basic dyes overstained.

The noun dyes are colored in the usual way for these dyes. In the case of the basic dyes, the oxidized dye produced with sulfur dyes is ^{translated to 30 percent at 60 to 70 °} C. with the addition of 2 to 5% acetic acid. It is also possible to use reactive dyes for over-dyeing in the manner customary for these dyes.

It has now been found that combination dyeings of sulfur dyes and reactive Dyes can be produced particularly advantageously if the ones with the sulfur dyes are fresh dyed cellulose materials after a short rinse before oxidation in a second bath with the Treated solutions of the reactive dyes, then oxidized and finished in the usual way. The so The dyeings obtained have compared to those obtained by the aftertreatment of oxidized dyeings of the sulfur dyes with reactive dyes, improved wet fastness properties, in particular with peroxide washing.

All dyes of this type are suitable as reactive dyes for the process according to the invention Question howz. B. those with haloacetyl-.ß-halopropionyl, Acryloyl and jtf-phenylsulfonylpropionylamino groups. Those reactive dyes which have a reactive radical are particularly suitable Halotriazine, halopyrimidine, halopyride

NaO ₃ S

Process for the production of
Combination dyeings from sulfur dyes and reactive dyes on cellulose material

Applicant:

Cassella Farbwerke Mainkur Aktiengesellschaft, 6000 Frankfurt-Fechenheim

Named as inventor:
Dr. Christian Heid,
Dr. Karl Holoubek,
6000 Frankfurt-Fechenheim

azine residue or the residue of a haloquinoxaline carboxylic acid contain.

example 1

A coloration of hydrosol light yellow G (Color Index Solubilized Sulfur Yellow 5; water-soluble sulfur dye from Immediallichtgelb GWL, the constitution of which is described in "Collection Czechoslov. Chem. Commun.", Vol. 27 (1962), pp. 1533 to 1548) on cotton yarn (made with 10% of the dye, 4 g / l calcium carbonate, 20 g / 1 Glauber's salt and 1.2 g / l sodium sulfhydrate in a liquor ratio 1:20 at 90 ^° C.) is rinsed and on a fresh bath with 2% of a scarlet reactive dye of the formula

OH NH

SO ₃ Na

very good wash and peroxide wash fastness.

20 g / l Glauber's salt calc. and 5 g / l soda lime. in the
Treated liquor ratio 1:20 at 90 ⁰ C for 30 minutes. It is then rinsed with ί g / l Na 50 one with. the reactive dye used above perborate oxidized at 40 ° C, soaped and re-treated, rinsed previously oxidized with perborate. It becomes vivid orange color from hydrosol light yellow color G is essential

SI »617 / 53S

weaker and more yellowish. It also has poor wet fastness properties.

Example 2

A dyeing with the green sulfur dye, produced according to US Pat. No. 2,395,117, Example 1, on cotton yarn (the dyeing was carried out with 2% of the dye, dissolved with 5 times the amount of crystalline sodium sulfide, 4 g / l soda lime and . 20 g / l of calcined Glauber's salt in a liquor ratio 1:) 20 made at 90 ⁰ C is purged and fresh bath with 4 ^o / o of a yellow reactive dye of the formula

SO ₃ Na

COONa

SO ₃ Na

20 g / l Glauber's salt calc. and 5 g / l soda lime. treated in the liquor ratio 1:20 at 70 ⁰ C for 30 minutes. It is then rinsed, oxidised with 1 g / l sodium perborate at 40 ⁰ C, soaped and rinsed again.

A brilliant, yellowish green is obtained, which has improved wet fastness properties, in particular one good peroxide wash.

Example 3

A coloration of hydrosol light yellow G (Color Index Solubilized Sulfur Yellow 5; more water-soluble Sulfur dye from Immediallichtgelb GWL, its constitution in »Collection Czechoslov. Chem. Commun. ", Vol. 27 (1962), pp. 1533 to 1548) on cotton yarn, produced as in Example 1 is described, after rinsing with 2% of a scarlet reactive dye of the formula

Cl Cl

NH-

NH

Y
Cl

20 g / l Glauber's salt calc. and 5 g / l soda lime. treated in the liquor ratio 1:20 at 90 ° C for 30 minutes. It is then rinsed, oxidised with 1 g / l perborate at 4O ⁰ C, soaped and rinsed again.

A reddish yellow coloration is obtained which has improved wet fastness properties.

If the coloration of hydrosol light yellow G before treatment with the reactive dye with perborate if oxidized, a weaker, less reddish-tinged yellow coloration is obtained.

HO, SO - CH, - CH ₁ - SO, SO ₃ Na OH

SO ₃ Na

SO ₁ Na

Example 4

A coloration of hydrosol light yellow G (Color Index Solubilized Sulfur Yellow 5; water-soluble sulfur dye from Immediallichtgelb GWL, the constitution of which is described in "Collection Czechoslov. Chem. Commun.", Vol. 27 (1962), pp. 1533 to 1548) on cotton yarn , prepared as described in Example 1, after rinsing with 3 ⁰ O of a red reactive dye of the formula

OH

SO ₃ Na

20 g 1 Glauber's salt, calc. and 5 g 1 soda lime. im 65 A reddish yellow coloration is obtained, the Liquor ratio 1:20 at 90 ° C for 30 minutes has good wet fastness properties, acts. It is then rinsed, the dye is squeezed off, soaped and rinsed again.

If the color of hydrosol light yellow G is used prior to treatment with the reactive dye with per-

borate or bichromate-acetic acid oxidizes, a weaker, less reddish-tinged yellow coloration becomes obtain.

Claims (1)

Claim: Process for the production of combination dyeings from sulfur dyes and reactive dyes on cellulose material, characterized in that the cellulose materials freshly dyed with the sulfur dyes are treated with the solutions of the reactive dyes in a second bath after a short rinse before the oxidation, then rinsed, oxidized and in the usual way completes. When the application was announced, a coloring table with an explanation was displayed.