High wet fast brilliant blue disperse dye mixtures

Abstract

The present invention is directed to high wet fast brilliant blue disperse dye mixtures comprising dye(s) of formula (I) ##STR00001##
and of formula (II) ##STR00002##
their production and their use for textile dyeing and printing.

Claims

1. A process for dyeing a polyester material comprising contacting the polyester material with a dye mixture in a concentration of 1.0 to 2.0% by weight and wherein the dye mixture consists essentially of 10 to 50% by weight of a dye formula (I-a) ##STR00025## 15 to 30% by weight of a dye of the formula (II-1) ##STR00026## and 20 to 75% by weight of a dye of the formula (IV) ##STR00027##

Description

EXAMPLE 1

(1) Synthesis of dyes of formula I-1 and II-1 were carried out using methods similar to those described in DE4403083 and EP07821369,

(2) To facilitate application, dye powders were prepared by glass bead milling of 47.4 parts of the isolated dye after synthesis with 47.4 parts of Reax 85A (a lignin sulphonate dispersing agent) and 0.5 parts sulphuric acid (to pH 6). After milling to a suitable particle size range, 0.5 parts of Mobile Anti Dust Concentrate (a mineral based oil dedusting agent) were added and the dispersions were spray dried to produce powders with 4.2 parts residual moisture.

(3) A dyeing liquor was prepared by adding 1.19 g. of a powder containing dye of formula I-1 and 0.51 g. of a powder containing dye of formula II-1 to 1000 ml of deionized water followed by mechanical mixing. A 5 g piece of 100% polyester material was dyed in 50 ml of the dye liquor after adjusting to pH 4.5 with Sodium Acetate and Acetic acid. After dyeing at 130 C. for 60 minutes, followed by rinsing, reduction clearing and drying, a bright blue shade was achieved.

EXAMPLE 2

(4) Synthesis of dyes of formula I-2, II-1 and IV-2 was carried out using methods similar to those described in DE4403083, EP07821369, JP58038754, JP51150530

(5) To facilitate application, dye powders were prepared as described in Example 1.

(6) A dyeing liquor was prepared by adding 0.68 g of a powder containing dye of formula I-2 and 0.17 g of a powder containing dye of formula II-1 and 0.85 g of a powder containing dye of formula IV-2 to 1000 ml of deionized water followed by mechanical mixing. A 5 g piece of 100% polyester material was dyed in 50 ml of the dye liquor after adjusting to pH 4.5 with Sodium. Acetate and Acetic acid. After dyeing at 130 C. for 60 minutes, followed by rinsing, reduction clearing and drying, a bright Navy blue shade was achieved.

(7) All examples of the following table are prepared as formulations as explained above, using dispersing- and dedusting agents.

(8) TABLE-US-00001 Example Dye (a) % Dye (b) % Dye (c) % Dye (d) % 3 I-1 80 II-1 20 4 I-1 60 II-1 40 5 I-1 50 II-1 50 6 I-1 30 II-1 70 7 I-2 80 II-1 20 8 I-11 75 II-1 25 9 I-2 70 II-1 30 10 I-2 60 II-1 40 11 I-2 50 II-1 50 12 I-2 30 II-1 70 13 I-2 70 II-1 15 IIA-1 15 14 I-2 60 II-1 20 IIA-1 20 15 I-1 40 II-1 30 III-1 30 16 I-1 70 II-1 10 III-1 20 17 I-1 40 II-1 10 IV-1 50 18 I-1 20 II-1 5 IV-1 75 19 I-1 15 II-1 5 IV-1 80 20 I-1 40 II-1 10 IV-2 50 21 I-1 20 II-1 5 IV-2 75 22 I-1 15 II-1 5 IV-2 80 23 I-1 20 II-1 10 III-1 20 IV-1 50 24 I-1 10 II-1 3 III-1 17 IV-1 70 25 I-1 15 II-1 5 III-1 20 IV-1 60 26 I-1 10 II-1 3 III-1 17 IV-2 70 27 I-2 40 II-1 30 III-1 30 28 I-2 70 II-1 10 III-1 20 29 I-2 40 II-1 10 IV-1 50 30 I-2 20 II-1 5 IV-1 75 31 I-2 15 II-1 5 IV-1 80 32 I-2 40 II-1 10 IV-2 50 33 I-2 20 II-1 5 IV-2 75 34 I-2 15 II-1 5 IV-2 80 35 I-2 20 II-1 10 III-1 20 IV-1 50 36 I-2 10 II-1 3 III-1 17 IV-1 70 37 I-2 15 II-1 5 III-1 20 IV-1 60 38 I-2 10 II-1 3 III-1 17 IV-2 70