DD229422B1 - DISPERSION DYES FOR THE PRINTING AND PRINTING OF POLYESTER FIBERS BZW. POLYESTER FIBER MIXTURES - Google Patents

Description

wherein R ₁ = -Cl, -Br, R ₂ = -OCH ₃ , -OCH ₂ -CH ₃ , and / or 5% to 90% of the disperse dye of the formula

(II)

and 4% to 50% of the disperse dye of the formula

MO

- N H - ч у - SC \ - NH

and 1% to 35% of a disperse dye of the general formula, Г.1

(III)

.CH ₁ -CH ₇ -

- N

(IV),

wherein R ₁ = -H, -CN, contain.

2. Use of the dye preparations according to claim 1 to achieve deep blue, brown and black shades on polyester fibers and polyester fiber blends with good levelness, largely uniform dyeing kinetics, good color tone especially in the temperature range up to 120 ⁰ C, high dye yield in short dyeing times of less than 30 minutes at most 130 ⁰ C.

Field of application of the invention

The invention relates to disperse dye preparations for level dyeing and printing of polyester fibers or polyester fiber blends in deep blue, brown or black shades.

Characteristic of the known technical solutions

It is known that deep blue, brown and black dyeings can be achieved on polyester fibers with disperse dye mixtures consisting of yellow, red or orange and blue disperse dyes. However, these mixed dyes have the disadvantage that they raise in the critical temperature range to achieve level dyeings of Farbstoffaufziehkurve to 120 ⁹ C unevenly and depending on the individual dyes on the polyester fiber and build up only at temperatures above 120 ⁰ C to the desired color corresponding to the dye mixture.

Such dye mixtures also give a lower dye yield, d. h., They draw incomplete from the dyeing liquor on the polyester fiber and require to achieve deep shades relatively long dyeing times and high dyeing temperatures. In addition, due to the differences in the individual dyes, the fastness level of the dyeing with such dye mixtures is generally also lower than that of the main dye component.

In DE-OS 2234465.3216788 is used to circumvent the o. G. Difficulties proposed a mixture of two or more blue azo disperse dyes of different constitution. Similar attempts are made with DE-OSs 3004652, 3004653, 3004654 and 3004655. Also, the mixture of blue Anthrachinondispersionsfarbstoffen with blue azo disperse dyes, as described in DE-OS 3023330.3043184, does not lead to the achievement of a level, uniform dye structure for deep blue, brown and black tones.

These invention descriptions have one thing in common, they relate to mixtures of two or three disperse dyes having similar hue but different performance and utility properties. Although some of the negative properties of a mixed component by the positive properties of the other mixing component or vice versa are eliminated or supplemented, but the difficulties remain in the construction of deep shades on the fiber in the crucial for the levity temperature range up to 120 ⁰ C. These problems are even more pronounced with mixtures of disperse dyes of different spectral ranges, such as yellow, orange and blue or yellow, red and blue disperse dyes, to achieve deep blue, brown or black shades.

Object of the invention

The aim of the invention are disperse dye preparations which no longer have the disadvantages of the known technical solutions and with which deep blue, brown or black dyeings on polyester fibers or polyester fiber blends with good levelness, largely uniform dyeing kinetics, good dye buildup especially in the temperature range up to 120 ° C, higher Dye yield and in a short dyeing time of less than 30 minutes at 130 ⁰ C can be achieved.

Explanation of the essence of the invention

The object of the invention is to find suitable yellow, orange and / or red and blue disperse dyes which give a substantially uniform Aufziehkinetik in mixtures especially in the temperature range below 12O ⁰ C and bypassing expensive individual dyes to egalen deep blue, brown and black shades Polyester fibers or polyester fiber mixtures lead.

It has surprisingly been found that disperse dyes of different spectral ranges, chemical composition and Aufziehkinetik corresponding to the following formulas I to IV, mixed with each other in certain proportions, lead to disperse dye preparations of the inventive solution.

The solution of the invention includes disperse dye preparations using a disperse dye of the general formula

N = N-

wherein Ri = Cl, -Br, Ri = -OOSN, -OCHr-CH ₃ , and / or a disperse dye of the formula

and the disperse dye of the formula

Ill

and a disperse dye of the general formula,

wherein R ₁ = -H, -CN.

The mixing ratio, based on the pure dye content is

1.5% to 30% of the formula I and / or 5% to 90% of the formula II,

4% to 50% of Formula III and 1% to 35% of Formula IV.

These disperse dye preparations according to the invention are either obtained by conventional Feinstmahlverfahren, as are typical for disperse dyes, using commercially available dispersants and aids on Farbstoffpreßkuchen or produced by mixing of commercial products. The trading form can be liquid. Powder or granules prepared by known methods

 The progress achieved by this invention results from the following advantages:

- big color depth

- uniform color structure in the decisive temperature range up to 120 ⁰ C

- good migration ability and thus achieve a good levity

High dye yield; thus a more effective use of dye is achieved at a lower environmental impact

- Shortening of dyeing time to less than 30 minutes

- dyeing temperature maximum not above 13O ⁰ C.

- high level of authenticity.

embodiments

The following examples serve to illustrate the invention without limiting it.

example 1

82.5 parts of Dispersblue 19, i-amino-4-phenyleneamino-anthraquinone, are mixed with 12.5 parts of Dispersyellow 42,2-nitrodiphenylamino-4-sulfonic acid anilide, and 5 parts of Disperse Orange 25,4-nitro-4 '(N-cyanoethyl) N-ethylamino) azobenzene, mixed. With this disperse dye preparation, deep blue level dyeings with excellent color tone structure and high fastness level are obtained on polyester fibers by the HT or carrier process:

Example 2

41 parts of Dispersblue 19, i-amino-4-phenyleneamino-anthraquinone, together with 39 parts of Dispersyellow 42,2-nitrodiphenylamino-4-sulfonic acid anilide, and 20 parts of Disperse Orange 25,4-nitro-4 '(N-cyanoethyl-N- ethylamino) azobenzene, pasted with water, mixed and dried. The disperse dyestuff preparation obtained in this way yields deep black, level dyeings with high bath exhaustion and excellent fastness properties on polyester fibers:

Example 3

27.5 parts of Dispersblue 79, 2,5-dinitro-6-chloro-3'-methoxy-4 '- (N-diacetoxyethylamino) -6'-acetaminoazobenzene, and 55 parts of Dispersblue 19, i-amino-4-phenyleneamino anthraquinone, along with 15 parts of Dispersyellow 42,2-nitrodiphenylamino-4-sulfonic acid anilide, and 2.5 parts of Dispersed 73,2-cyano-4-nitro-4 '- (N-cyanoethyl-N-ethylamino) -azobenzene, with Pasted water, thoroughly mixed and optionally dried in the usual way. The resulting liquid or dried disperse dye preparation gives level dyeing on polyester fibers with very good dye buildup, high bath exhaustion and excellent fastness level in the dark blue color range.

Example 4

41.7 parts of a 30% presscake of Dispersblue 19, i-amino-4-phenylamino-anthraquinone, with 26 parts of a 90% presscake of Dispersyellow 42,2-nitro-diphenyl-amino-4-sulfonsäureanilid, and with 15.6 parts of a 50% presscake of Disperse Orange 25,4-nitro-4 '(N-cyanoethyl-N-ethylamino) azobenzene, as well as with 12.9 parts of a 50% presscake of Dispersred 73,2-cyano- 4-nitro-4 '- (N-cyano-ethyl-N-ethylamino) -azobenzene, using common commercial dispersants and water on a wet fine mill or jointly ground and mixed and as a liquid formulation or by spray drying as granules for dyeing polyester fibers used. The disperse dye preparation is characterized by a uniform color tone structure during the dyeing process and good fastness properties. It provides excellent level dark brown colorations.

example 1 Comp. Example 2 Comp. Example 4 -4- 229 422 dark Blue 7 black 6 dark Brown Presentation of the application properties: template 5 template 5 template 7 3 6 3- ^ 1 7 5 5 5 4-5 5 Comp. 4 5 4 5 4-5 6-7 fastness 5 <95 4-5 95 5 5 Wash fastness 60 ⁰ C 5 8.0 5 8.0 5 4-5 rub fastness > 95 > 95 > 95 5 perspiration 4.0 7.0 2.5 5 Dekaturechtheit 95 excerpt degree 4.2 Dye use% for the same color depth

Example 3 as Example 1

In order to demonstrate the technical progress, the testing laboratory also had color plates which show the dyeing properties of the dye preparations claimed according to the invention in comparison to known products of St.d.T. occupy.

Claims (1)

Invention claim: 1. disperse dye preparations for dyeing and printing polyester fibers or polyester fiber blends, characterized in that they contain, in addition to conventional dispersants and auxiliaries based on the total dispersed dye content 1.5% to 30% of the disperse dye of the general formula _f NO, ѴУ , НиГ-і- ¹ - (- С -CH - _; - c-CC-CH (NH-CC -