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Mixtures of reactive dyes and their use

a technology of reactive dyes and dye mixes, applied in dyeing processes, inks, coatings, etc., can solve the problem that the build-up behavior of reactive dyes is not sufficient to meet the demands

Inactive Publication Date: 2010-06-17
HUNTSMAN INT LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention relates to dye mixtures comprising at least one dye of formula (I) and at least one dye of formula (II). The dyes can have different substituents and can be unsubstituted or substituted. The dye mixtures can be used in various applications such as textile printing, inkjet printing, and cosmetics. The technical effects of the invention include improved color quality, reduced bleeding, and enhanced solubility.

Problems solved by technology

In many cases the build-up behaviour of reactive dyes is not sufficient to meet the demands made, especially when dyeing in very deep shades.

Method used

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  • Mixtures of reactive dyes and their use
  • Mixtures of reactive dyes and their use
  • Mixtures of reactive dyes and their use

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0117]100 parts of a cotton fabric are introduced at a temperature of 60° C. into a dye bath containing 3.0 parts of the dye of formula (1.1), 3.0 parts of the dye of formula (2.1) and 60 parts of sodium chloride in 1000 parts of water. After 45 minutes at a temperature of 60° C., 20 parts of calcined soda are added. The temperature of the dye bath is maintained at 60° C. for a further 45 minutes. The dyed fabric is then rinsed and dried in the usual manner. A navy-blue dyeing having good fastness properties is obtained.

examples 2 to 4

[0118]By proceeding as indicated in Example 1 but, instead of using 3.0 parts of the dye of formula (2.1), using 3.0 parts of the dye of formula (2.2), 3.0 parts of the dye of formula (2.3) or 3.0 parts of the dye of formula (2.4), there is likewise obtained a navy-blue dyeing having good fastness properties.

[0119]In a manner analogous to that described in Example 1, instead of 3.0 parts of the dye of formula (1.1), the same amount of one of the dyes of formulae (1.2), (1.3), (1.4), (1.5) and (1.6) may be used.

example 5

[0120]100 parts of a cotton fabric are introduced at a temperature of 60° C. into a dye bath containing 3.0 parts of the dye of formula (1.1), 3.0 parts of the dye of formula (3.1) and 60 parts of sodium chloride in 1000 parts of water. After 45 minutes at a temperature of 60° C., 20 parts of calcined soda are added. The temperature of the dye bath is maintained at 60° C. for a further 45 minutes. The dyed fabric is then rinsed and dried in the usual manner. A navy-blue dyeing having good fastness properties is obtained.

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Abstract

Dye mixtures comprisingat least one dye of formulatogether with at least one dye from the group of formulaewherein the radicals have the definitions given in the claims, are suitable for dyeing or printing cellulose-containing fibre materials, while at the same time exhibiting good build-up behaviour, and yield dyeings of deep shade having good fastness properties.

Description

[0001]This application is a continuation application of U.S. patent application Ser. No. 10 / 592,888, currently pending, which was the National Phase of International Application PCT / EP2005 / 051037 filed Mar. 9, 2005 which designated the U.S. and which claims priority to European Pat. App. No. 04101142.0 filed Mar. 19, 2004. The noted applications are incorporated herein by reference.FIELD OF INVENTION[0002]The present invention relates to mixtures of reactive dyes, which mixtures are suitable for dyeing or printing nitrogen-containing or hydroxy-group-containing fibre materials and yield dyeings or prints having good all-round fastness properties.BACKGROUND OF THE INVENTION[0003]The practice of dyeing has recently led to higher demands being made on the quality of the dyeings and the economic efficiency of the dyeing process. As a result, there continues to be a need for novel, readily obtainable dyeing compositions having good properties, especially in respect of their application.[...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C09B62/006C09D11/02B05D5/00C09B67/00C09B67/22C09D11/00
CPCC09B67/0057C09B67/0042C09D11/328C09B67/0058C09B62/09D06P1/38D06P5/30C09B67/0044C09B67/00D06P3/148D06P3/666
Inventor TZIKAS, ATHANASSIOSROENTGEN, GEORG
Owner HUNTSMAN INT LLC