Mixtures of fibre-reactive dyes

Abstract

Mixtures of fiber reactive dyes and their use of for the dyeing of hydroxyl- and carboxamide-containing material in blue and navy shades are described.

Claims

1. A mixture of fibre-reactive dyes consisting of: a dye of formula (I-1), (II-1) and (III-7) ##STR00018## wherein the dye of formula (I-1), (II-1) and (III-7) is present in a weight ratio of (I-1) 50 to 60%, (II-1) 40 to 20% and (III-7) 30 to 20% with percentages adding up to 100%.

2. The mixture as claimed in claim 1, wherein the dye of formula (I-1), (II-1) and (III-7) is present in a weight ratio of (I-1) 50%, (II-1) 30% and (III-7) 20% with percentages adding up to 100%.

Description

EXAMPLE 1

(1) 70 parts of an electrolyte-containing dye powder containing the reddish blue azo dye of the formula (I-1), and 30 parts of an electrolyte-containing dye powder containing the greenish navy azo dye of the formula (II-1), were mixed mechanically with one another.

(2) The resultant dye mixture of the invention provides neutral navy dyeings and prints, on cotton for example, under the dyeing conditions customary for reactive dyes.

EXAMPLE 2

(3) 50 parts of an electrolyte-containing dye powder containing the reddish blue azo dye of the formula (I-1), 30 parts of an electrolyte-containing dye powder containing the greenish navy azo dye of the formula (II-1), and 20 parts of an electrolyte-containing dye powder containing the blue azo dye of the formula (III-7) were mixed mechanically with one another.

(4) The resultant dye mixture of the invention provides neutral navy dyeings and prints, on cotton for example, under the dyeing conditions customary for reactive dyes.

EXAMPLE 3

(5) 50 parts of an electrolyte-containing dye powder containing the reddish blue azo dye of the formula (I-4), 30 parts of an electrolyte-containing dye powder containing the navy azo dye of the formula (II-6), and 20 parts of an electrolyte-containing dye powder containing the blue azo dye of the formula (III-1) were mixed mechanically with one another.

(6) The resultant dye mixture of the invention provides neutral navy dyeings and prints, on cotton for example, under the dyeing conditions customary for reactive dyes.

(7) TABLE-US-00001 Example No Component I % Component II % Component II % 4 I.1 60 II.1 40 5 I.1 50 II.1 50 6 I.1 50 II.1 30 III.1 20 7 I.1 20 II.1 30 III.1 50 8 I.1 50 II.1 30 III.2 20 9 I.1 50 II.1 30 III.3 20 10 I.1 50 II.1 30 III.4 20 11 I.1 50 II.1 30 III.5 20 12 I.1 50 II.1 30 III.6 20 13 I.2 70 II.2 30 14 I.2 60 II.2 40 15 I.2 50 II.2 50 16 I.2 50 II.2 30 III.1 20 17 I.2 50 II.2 30 III.7 20 18 I.3 70 II.1 30 19 I.3 60 II.1 40 20 I.3 50 II.1 50 21 I.4 70 II.1 30 22 I.4 60 II.1 40 23 I.4 50 II.1 50 24 I.4 50 II.1 30 III.1 20 25 I.4 50 II.1 30 III.7 20 26 I.5 70 II.1 30 27 I.5 60 II.1 40 28 I.5 50 II.1 50 29 I.6 70 II.1 30 30 I.6 60 II.1 40 31 I.6 50 II.1 50 32 I.12 70 II.1 30 33 I.12 60 II.1 40 34 I.12 50 II.1 50 35 I.13 70 II.1 30 36 I.13 60 II.1 40 37 I.13 50 II.1 50 38 I.17 70 II.1 30 39 I.17 60 II.1 40 40 I.17 50 II.1 50 41 I.18 70 II.1 30 42 I.18 60 II.1 40 43 I.18 50 II.1 50 44 I.20 70 II.1 30 45 I.20 60 II.1 40 46 I.20 50 II.1 50 47 I.21 70 II.1 30 48 I.21 60 II.1 40 49 I.21 50 II.1 50 50 I.1 70 II.4 30 51 I.1 60 II.4 40 52 I.1 50 II.4 50 53 I.1 70 II.5 30 54 I.1 60 II.5 40 55 I.1 50 II.5 50 56 I.1 70 II.6 30 57 I.1 60 II.6 40 58 I.1 50 II.6 50 59 I.1 50 II.6 30 III.1 20 60 I.1 50 II.6 30 III.7 20 61 I.1 70 II.8 30 62 I.1 60 II.8 40 63 I.1 50 II.8 50 64 I.1 70 II.10 30 65 I.1 60 II.10 40 66 I.1 50 II.10 50 67 I.1 70 II.11 30 68 I.1 60 II.11 40 69 I.1 50 II.11 50 70 I.1 70 II.12 30 71 I.1 60 II.12 40 72 I.1 50 II.12 50 73 I.1 50 II.12 30 III.1 20 74 I.1 50 II.12 30 III.7 20 75 I.1 70 II.13 30 76 I.1 60 II.13 40 77 I.1 50 II.13 50 78 I.1 50 II.13 30 III.1 20 79 I.1 50 II.13 30 III.7 20 80 I.1 70 II.14 30 81 I.1 60 II.14 40 82 I.1 50 II.14 50 83 I.1 50 II.14 30 III.1 20 84 I.1 50 II.14 30 III.7 20

APPLICATION EXAMPLE 1

(8) 5 parts of the dye obtained in example 1 and 50 parts of sodium chloride were dissolved in 999 parts of water, and 5 parts of sodium carbonate, 0.7 parts of sodium hydroxide (in the form of a 32.5% strength aqueous solution) and, if necessary, 1 part of a wetting agent are added. This dyebath was entered with 100 g of a woven cotton fabric. The temperature of the dyebath was maintained at 25 C. for 10 minutes to start with, then raised over 30 minutes to the final temperature 60 C. and held at that temperature for a further 60 to 90 minutes. Thereafter the dyed goods were rinsed first for 2 minutes with water and subsequently for 5 minutes with water. The dyed goods were neutralized at 40 C. in 1000 parts of an aqueous solution containing 1 part of 50% strength acetic acid for 10 minutes. This was followed by rinsing with deionized water at 70 C. and then by soaping off at the boil for 15 minutes with a laundry detergent, rinsing again, and drying. This gives a strongly colored navy dyeing having very good fastness properties.