DE2108364C3 - Dye mixtures with neutral behavior under artificial lighting for one-bath dyeing of mixtures of polyester fibers and wool - Google Patents

Description

H ₂ NOR,

(0

ι and the same Sun? Considered in the case of ^C v £ ci = r composed light sources, it can be perceived in different ways in its nuance. Since the composition of artificial light is different from that of daylight, many colors show an "evening color" that differs from the "day color". E _1n change of the light source influences, omit the

HO OR ₂

in which R _{1 is} a hydroxyl or hydroxymethylamino group and R _{2 is} a hydroxyl, amino or hydroxymethylamino group, where the radicals R ₁ and R _{2 are} always different, and R _{3 is} a hydrogen atom or a phenol or anisole radical, and b) an acid dye of the general formula

30th

35

4o It is known that the evening color represents a shift in the nuance from body colors to red or towards green, brought about by artificial light, or more precisely by incandescent lamps. This hue

: Fabric unier _colorations

ucht ωΛ J '° ^ usTo, y etfer fibers and wool occurs mixtures of roiv «si _h ßicolor-

this appearance. Eir ' ^from f ^^ ™

45

in which X or X ^{0 represents} a solubilizing group or anionic radical thereof, predominantly - SO ₃ H or - SOf, and Z represents a methyl or ethyl group, and optionally c) other disperse dyes and / or acid dyes and / or metal complex dyes.

2. A method for single-bath dyeing of mixtures of polyester fibers and wool, characterized through the use of dye mixtures according to claim 1.

60

coloring of Nuiugsuiouwi. «... -

There is the problem that the blue dyes - both the wool dyes and the disperse dyes - have a very different evening. play bz . In this context, it was therefore hardly possible to find a dye mixture whose components do not absorb one-sided, but in the broadest possible spectral range, i.e. the coloration produced with all types of light with regard to the appearance of the polyester fiber as well as the wool fiber portion of the goods behave similarly.

Particular attention has been paid to this fact because the dye production have largely gone over to combinations of disperse and acid or metal complex dyes for single-bath dyeing before blends of polyester fibers and wool. Such mixtures of dyes allow a number of advantages in practice, such as e.g. B. a « Facilitation of dye selection, or easier handling of these dyes, simpler; Dissolving and dispersing.

Surprisingly, it has now been found that e when using dye mixtures, consisting of au

a) one or more disperse dyes de general formula

H, N

HO OR ₂

Dyes on wool have always been judged by customers especially with regard to their evening color. To produce those in which R _{1 is} a hydroxyl or hydroxymethylamine group and R _{2 is} a hydroxyl, amino or hydroxyl group; methylamino group, where the radicals F and R _{2 are} always different, and R _{3 represents} a hydrogen atom or a phenol or anisole radical

nd b) an acid dye of the general formula

ho-wn-,

in which X or X is a solubilizing group or an anionic residue thereof, predominantly - SO ₁ H or - SO ₃ ', and Z is a methyl or ethyl group, for single-bath dyeing of mixtures of polyester fibers and wool, the evening color succeeds to eliminate known hue changes.

According to the invention, brilliant blue colorations are achieved on the goods with artificial lighting show no shift in nuances compared to the appearance in daylight. Your behavior at the Viewing under artificial light, no matter what kind, is neutral; a bicolor effect is applied to the Polyester fiber-wool blends dyed in this way are not noticeable. In addition, own the dyeings produced with the aid of these dye mixtures have very good fastness properties.

It has also been found according to the invention that in the case of dye mixtures of c) others Dispersion dyes and / or acid dyes and / or metal complex dyes, such as, for example for the production of dark orange tones or shades of brown and navy blue on these textile materials Can be used, even an addition of small amounts of the above Dye combination is able to undergo an otherwise occurring color change here too to cancel artificial light (Abuid color).

Another advantage of using the dye mixtures explained is, for. B. the fact that this Dyes can be determined on the basis of remission curves and so for the pre-calculation of the recipes can be recorded. In addition, there is also a better tone-on-tone coloration. It is also surprising that in single-bath dyeing with the dye mixtures according to the invention, the Soiling of the wool fiber portion of the goods by the disperse dye in most cases somewhat is lower than when coloring the individual components.

All dyeing methods customary in connection with polyester fiber-wool mixtures are suitable for carrying out the dyeings with the dye combinations mentioned: exhaust processes at boiling temperature and at higher temperatures (106 to 108 ⁰ C) with the customary carriers, continuous dyeing processes, such as the thermosol process or the HT pressure damping process. The processing status of the textile material used, whether yarn or fabric, regardless of the mixing ratio, has no influence whatsoever on the dye combination used, although with extreme differences in the mixing ratio of the fibers, the tone-on-tone dyeing

exercise can move something. However, the result will always be a neutral evening color. With these special The individual dyeing processes can be carried out just as well as with the dye mixtures Individual components all by themselves. It arise

thus no more cumbersome or difficult procedures. The mixing ratio of the individual components the dye mixtures according to the invention can vary within wide limits; it is in general on the composition of the textile

materials dependent on polyester fibers and wool.

example 1

A combination of dyes consisting of 0.23 g of a mixture in the ratio of about 45:55 from the disperse dyes of the formulas

H ₂ NO NH-CH ₂ OH

and

HO O OH

H ₂ NO OH

55

HO O NH-CH ₂ OH

60

0.07 g of the disperse dye of the formula

H ₂ N O
Il OH
j ό : l j) / V HO Y
O NH ₂

Br

and 0.22 g of the acid dye of the formula
H

^H0 XI) ^ ^N ~ Cy ^{c =} O "vO" ^0H

and

SO ₃ ^

is sprinkled into 15 to 20 times the amount of soft water from 50 to 60 ° C while stirring vigorously, and about ten times the amount of hot water is then added to this preparation. A boil must be omitted at this point.

In a separate approach, 6 to 9 ecm become one commercial carriers of the type o-phenylphenol, methylnaphthalene or an alkyl salicylate Stirred in well emulsified form in 21 water. This dye bath is also added 1 ecm Acetic acid (60%) and 5 g ammonium sulfate or ammonium acetate were added. Finally you pour Stir the dispersed dyes through a fine-meshed sieve or cloth Dye liquor and fills it up to a total volume of 31 with water.

In the dye liquor produced in this way at room temperature 100 g of a blend of linear polyethylene terephthalate fibers and wool im Ratio 55:45 entered, whereupon the bath is slowly heated to the boil and the goods 2 hours colors for a long time at boiling temperature. Thereupon the coloring is first done with warm as well as cold water rinsed and then with a liquor containing 2 g of a nonionic wetting agent per liter of water 40% based on the addition compound of 36 moles of ethylene oxide and 1 mole of castor oil, 15 minutes treated at 80 ° C. After rinsing again with water, the dyed fiber material is dried.

On both components of the fiber mixture, a brilliant blue coloration and hue are obtained remains practically unchanged when illuminated with incandescent light.

Example 2

100 g of a blend fabric on Polyäthylenterephthatfasern and wool in the ratio 55: 45 are treated under the conditions of Example 1 with a dyeing liquor which has been prepared as described therein and a Fa ^r bstoffkombination the following composition contains:

0.48 g of a mixture in the ratio of about 40:60 of the disperse dyes of the formulas

OH

H, N O OH

OCH ₃

HO O NH ₂

0.18 g of a mixture in a ratio of about 45:55 of the disperse dyes of the formulas

Η, Ν Ο NH-CH ₂ OH

and

HO O NH-CH ₂ OH
and 0.35 g of the acid dye of the formula

A brilliant royal blue coloration is obtained on the fiber mixture, which is practical with artificial light shows no color change.

B e i s ρ i e 1 3

(Comparative color y

To illustrate the effect of the evening color, 4 g of a disperse dye, the in brominating a mixture of 1,5-dihydroxy-4,8 - diamino - anthraquinone and 1,8 - dihydroxy-4,5-diamino-anthraquinone up to a bromine content of 15% is formed, and 1 g of the acid dye of the formula

N = N

SO ₃ H

N = N

NH

SO ₃ H

HO O NH,

prepared a dye liquor according to the information in Example 1 and thus in the manner described there dyed a mixed fabric of the same composition.

The result is a coloration in a navy blue tone. With artificial light (e.g. from normal incandescent lamps) the color appears strongly reddish to reddish-bronzing. When looking under very pointed Angle with incandescent lamp light one has the impression of a brown coloration (bad, i.e. strongly changed »Evening color«).

Example 4

A dyebath is made in a manner analogous to Example 1 from 4 g of a disperse dye, the when brominating a mixture of 1,5-dihydroxy-4,8-diamino-anthraquinone and 1,8-dihydroxy-4,5-diamino-anthraquinone is formed up to a bromine content of 15%,

attached and thus dyed a mixed fabric of the same composition according to the local regulations. A navy blue coloration is obtained on the goods, the color of which is compared to that in incandescent lamp light is practically unchanged in daylight (neutral evening color).

Example 5

It is used to prepare the dye liquor from 1 g of a disperse dye, which when brominated a Mixture of 1. S-dihydroxy ^ S-diamino-anthraquinone and 1,8-dihydroxy-4,5-diamino-anthraquinone is formed up to a bromine content of 15%, 0.2 g des Acid dye of the formula

0.5 g of the acid dye of the formula

SO ₃ H

// - SO ₃ H

0.92 g of a mixture in the ratio of about 45:55 of the disperse dyes of the formulas

H ₁ NO NH-CH ₂ OH

HO O OH

HO O NH-CH ₂ OH 0.28 g of the disperse dye of the formula H ₂ NO OH

HO O NH ₂

and 1.88 g of the acid dye of the formula H

SO.,

y oh -N =

SO, H

= n- / ~ Vnh- /

O-SO ₃ H

0.92 g of a mixture in a ratio of about 45:55 of the disperse dyes of the formulas

H ₂ NO NH-CH ₂ OH

HO O OH

YT

HO O NH-CH ₂ OH

0.28 g of the disperse dye of the formula
H, NO OH

and 1.88 g of the acid dye of the formula
H

SO ₃

Proceed as in Example 1 and the dyeing of a polyester-wool blended fabric on the same Way made.

30 «

A dark blue coloration is obtained on the goods, the color of which in artificial light is compared to that in Daylight remains practically unchanged.

Example 6 _s

100 g of a mixed yarn of linear polyethylene terephthalate fibers and wool in the ratio of 55:45 are treated with a dye liquor that has been prepared according to Example 1 and the one dye combination of the following composition ι ο settlement has:

0.92 g of a mixture in the ratio of about 45:55 of the disperse dyes of the formulas dye, which when brominating a mixture of 1,5 - dihydroxy - 4,8 - diamino - anthraquinone and !, S-dihydroxy ^ S-diamino-anthraquinone up to a r Bromgehak of 15% arises,

1.5 g of the disperse dye of the formula

H ₂ NO NH-CH ₂ OH

■ 5 0.5 g of the disperse dye of the formula

NO,

2 S 0.21 g of the disperse dye of the formula CN

O ₂ NZ ^ VN = N- / \ η

HO O NH-CH ₂ OH
0.28 g of the disperse dye of the formula
H ₂ NO OH

CH ₂ - CH, - CN

CH ₂ - CH ₂ - CO - O - CH ₃

0.6 g of the 1: 2 cobalt complex compound from substance of the formula

HO O NH ₂

and 0.88 g of the acid dye of the formula
H

OH

40

SO, - NH ₂

The dyeing is carried out in a manner analogous to that described under Example 1.

A lively royal blue coloration is obtained on the two fiber components of the mixed yarn. the The color shade is practically unchanged in artificial light compared to the daylight nuance.

Example 7
(Comparison coloring)

To demonstrate the influence of the evening color a dyebath containing 0.23 gcincs of dispersion

55 O, O55g of the 1: 2 chromium complex compound of the dye of the formula

SO, - NH,

OH

= N-C C-CH,

Il Il

HO-C N

and 0.18 g of the acid dye of the formula

SO ₃ H

N = N

N = N

0.5 g of the disperse dye of the formula OH NO ₂

N = N

SO ₃ H

produced according to the information in Example 1 and in the same way as described there, a mixed yarn Dyed from the polyester fibers and wool.

The result is a neutral brown color on the goods, the hue of which changes greatly when exposed to incandescent lamp light; in artificial light the shade is red-brown.

Example 8

According to the recipe from Example 1, a dye liquor is prepared which contains a combination of dyes from 0.23 g of a mixture in a ratio of about 45:55 of the disperse dyes of the formulas

0.6 g of the 1: 2 cobalt complex compound of the Far substance of the formula

SO, - NH,

N = NC C-CH ₃

Il Il

HO-C N

H ₂ NO NH-CH, OH

HO O NH-CH ₂ OH 0.15 g of the disperse dye of the formula

0.21 g of the disperse dye of the formula CN

O ₂ N

CH, - CH, - CN

CH ₂ - CH ₂ - CO - OCH ₃

0.05 g of the 1 ^ chromium complex compound of Fai substance of the formula

SO, - NH,

N = N-C C-CH,

⁴⁵ and 0.18 g of the acid dye of the formula

// - ^
HO

5 °

contains, and thus in the manner described there polyester fiber-wool mixed yarn (ratio 55: colored and finished.

A yellow-brown coloration is obtained on the mixed yarn, the color of which is practical under artificial light remains unchanged.

Claims (1)

the Patent claims: he with neutral behavior Dei κ. u ns im, uci lighting for one-bath dyeing of mixtures of polyester fibers and wool, consisting of a) one or more Disperse dyes of the general formula rarely one for it S ^ SF ^ oV ^ just, who has proven to be favorable with regard to this phenomenon.
"Χ tone of color is you, c _h je spectra.e