CS226046B2 - Reactive c.i. 19blue dye - Google Patents

Abstract

1. A dyestuff composition containing C.I. Reactive Blue 19 (sodium salt), sodium anthraquinone-2-sulfonate and a surfactant, wherein the surfactant is a sodium ligninsulfonate.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to reactive binder-based dye compositions of C.I. 19 Dec

Preparations containing a reactive blue dye C.I. 19 in the form of the sodium salt, sodium anthraquinone-2-sulfonate, a surfactant and optionally a dusting agent are already known from DE-PS 24 12 964 and from EP-OS 14 326. These preparations are suitable for the formation of saturated and even colors. however, they tend to produce restless, illegal or mottled prints when printing, especially when making large measurements or working on high-speed machines.

It has now been found that preparations of these dyes are obtained which have the predominance of known preparations, but do not have their deficiencies in printing when used as a surfactant? sodium lignin sulphonate.

The invention therefore relates to C.I. 19 (sodium salts) containing sodium anthraquinone-4-sulphonate, a surfactant and optionally a dusting agent which is characterized in that it contains sodium lignin sulphonate as a surfactant.

In the following, the preferred formulations according to the invention are explained, wherein the percentages are always intended to be mono -ootic.

The colorant content can vary within wide limits and is suitably about 20 to 70 and preferably about 30 to 65%. The sodium anthraquinone-4-sulphonate content is expediently about 3 to 20% and in particular 5 to 15%.

Any commercial product can be used as the lignin sulfonate. Content lignin226046

The sodium sulfonate 226046 2 is suitably 5 to 40 and preferably 15 to 30%.

If the preparation contains a dusting additive, any commercial product may be used. Mineral oil is preferred and preferably in the form of an emulsion. The dedusting agent content is about 0.1 to 5%.

The coloring composition may additionally contain further auxiliaries such as urea and / or condensed phosphates in the form of their sodium salts. In addition, electrolytes, such as alkali metal halides or sulphates, may also be contained in a low level due to the dye production process.

The dye preparations according to the invention are produced by mixing or grinding dry particles. It is also possible to mix the portions in the presence of a solvent, in particular water or in the form of their solutions, and then to change the mixture, for example by spraying constriction. Advantageously, the additives add a colorant formed in the solution and are dried, preferably by spraying.

The colorant compositions of the present invention can be easily incorporated into dye baths or printing pastes. The dyeing then produces a rich and even coloration and, when incorporated into printing pastes, gives usable grain prints even when using high-speed machines.

in the following examples, parts and percentages are by weight. By "dye" is meant reactive blue C.I. 19 in the form of the sodium salt.

Example 1

TO, 4 parts of 71% purity dye are mixed in a rotary table and a rotary table with 9 parts of anthraquinone-2-sulfonic acid (sodium salt), 20 parts of sodium ligninsulfonic acid and 0.6 parts of a mineral oil emulsion.

When the resulting dye composition is incorporated into 40 parts into 960 parts of the stem dye, a printing paste is obtained which produces a fair, flawless print upon printing. The gimbal used consists of 435 parts of a 4% alginate thickener, 22 parts of sodium bicarbonate, 11 parts of sodium m-nitrobenzenesulfonate, 50 parts of urea and 482 parts of water.

Example 2

600 parts to produce the resulting aqueous solution 70.4 parts of dye with a net dye content of 71% were mixed with 9 parts of anthraquinone-2-sulfonic acid (sodium salt) and 20 parts of sodium ligninsulfonic acid and spray-dried. The resulting powder is mixed with 0.6 parts of a mineral oil emulsion. The dye composition thus obtained provides an 8 paste according to Example 1 printing paste which can be used without difficulty for printing.

Example 3

70.4 parts of a 71% purity dye are ground with 6 parts of anthraquinone-2-sulfonic acid (sodium salt), with 21.6 parts of ligninsulfonic acid sodium salt and with 2 parts of mineral oil emulsion in a cradle mill. The resulting coloring composition provides a printing paste with a dye according to Example 1, which can be used without difficulty for printing.

Example 4

600 parts in the dye production of the resulting solution 66 parts dye of 75.8% purity and mixed with 12 parts of anthraquinone-2-sulfonic acid (sodium salt), 20 parts of lgpinailLLonic acid sodium salt and β 1 part mineral oil emulsion with stirring spray dried. The resulting powder is mixed with 1 additional portion of the mineral oil emulsion. The dye composition thus obtained is sprayed with a dye according to Example 1 'A profitable paste which can be used without printing for printing.

Example 5 parts of 75.8% pure dye are mixed with 5 parts of anthraquinone-2-sulfonic acid (sodium salt), 22 parts of sodium ligninsuioonic acid, 3 parts of urea, 3 parts of condensed phosphate (sodium salt) and with 1 part mineral oil emulsion in a rotary table on a rotary table. The dye composition obtained is sprayed with a printing paste according to Example 1, which can be used without difficulty for printing.

Example 6

600 parts are mixed in the manufacture of the obtained aqueous solution defending 70.4 parts of a 71% purity dye with stirring with 9.6 parts of anthraquinone-2-sulfonic acid (sodium salt) and 8 20 parts of a linine tinphonic acid sodium salt and dried in an aqueous solution. Spray dryer with single substance nozzle. The resultant dye granulate provides a workable paste paste with the stock drill of Example 1.

Example 7

600 parts are mixed to produce 66 parts of the dye having a purity in the aqueous solution obtained

75.8% with stirring with 12 parts of anthraquinone-2-suffonic acid (sodium salt) and 20.6 parts of sodium ligninsuioic acid and dried in an animal bed dryer. The resultant dye granulate provides a printing pressure paste without difficulty according to Example 1.

Claims (6)

1. Reactive Blue Dye Preparation C.I. 19, optionally in the form of a sodium salt, comprising sodium anthraquinone-2-sulfonate and a surfactant, for dyeing and printing natural or regenerated cellulose materials, characterized in that:. that it contains 20 to 70% by weight of dye, 3 to 20% sodium anthroquinone sulfonate and 5 to 40% sodium lignin sulfonate. 2. A coloring composition as claimed in claim 1, comprising a dedusting agent. 3. A coloring composition as claimed in claim 1, characterized in that it contains an ointment oil or a mineral oil emulsion as a dusting agent. 4. A coloring composition as claimed in any one of Claims 1 to 3, characterized in that it always contains a monotonous substance 1 to 10% urea and / or condensed phosphate as the sodium salt. 5. A coloring composition according to any one of Claims 1 to 4, characterized in that it contains from 30 to 65% by weight of dye, from 5 to 15% by weight of sodium acetate and from 15 to 30% by weight of sodium lime salt. 6. A coloring composition as claimed in any one of claims 1 to 5, wherein the content is from 1% to 5% by weight of the dedusting agent.