DE1064016B - Process for coloring structures made from acrylonitrile polymers, vinylidenecyanide polymers or from copolymers of the same with other vinyl compounds - Google Patents

Description

It has been found that structures made of acrylonitrile polymers, vinylidenecyanide polymers or from copolymers of the same with other vinyl compounds with excellent uniformity Can be dyed with Kätiönischen dyes, if one "the-dyeing in the presence of quaternary Performs ammonium compounds which have an optionally halogen-substituted benzyl radical and one having at least 8 carbon atoms Contain alkyl radical.

Suitable quaternary ammonium compounds are, for. B. those derived from fatty amines, which 8 to 18, especially 12 to 16 carbon atoms contain, -and the; from this by introducing lower alkyl groups - for example of methyl groups - as well as by subsequent reaction with benzyl chloride or 3,4-dichlorobenzyl chloride.

As was further found, one achieves here particularly advantageous effects if one uses the quaternary ammonium compounds in question used in the form of their adducts with urea or urea derivatives. Such . Are adducts z. B. obtainable by fusing the quaternary ammonium compounds with urea or urea derivatives, such as monoacetylurea.

The respectively required amounts of the quaternary compounds or their urea adducts !! can easily be determined by preliminary tests; more detailed explanations can be found in the following examples evident.

Cationic dyes, which are used for coloring structures made from acrylonitrile polymers, vinylidene cyanide polymers or from copolymers of the same with other vinyl compounds are, for. B. described in American Dyestuff Reporter, 1954, 432 and 433.

The process according to the invention allows structures produced from the polymers mentioned at the outset, such as B. threads, fibers, fabrics and films, with cationic dyes much more evenly to color than is possible in the presence of the leveling agents proposed so far.

Be i s ρ i e 1 1

Yarns made from polyacrylonitrile fibers are in the liquor ratio 1:40 placed in a 50 ° C warm bath containing 0.05 g of the cationic dye per liter

H ₃ C CH ₃

Process for coloring acrylonitrile polymers,

Vinylidenecyanide polymers

or from copolymers of the same

with other vinyl compounds

manufactured structures

Applicant:,,.,;

Paint factories Bayer Aktiengesellschaft, Leverkusen-Bayerwerk

Walter Hees, Cologne-Höhenberg, has been named as the inventor

as well as 0.2 dimethyl-cetyl-benzyl-ammonium chloride, Contains 0.25 g of sodium acetate and 0.2 g of glacial acetic acid. The temperature of the liquor is gradually increased from 50.degree to 96 to 98 ° C and keeps the dyebath at this temperature for 1 hour. It turns a light pink color achieved with excellent evenness.

Example 2

A fabric made of polyacrylonitrile threads is placed in a bath in a liquor ratio of 1:40, which 0.1 g of the cationic dye per liter

H _a C

CH,

C-CH = CH-NH

, C Ho C Ho Cl

-n:

CH, and 0.15 g of the reaction of dimethyl palm kernel fatty amine quaternary ammonium compound obtained with benzyl chloride, 0.2 g of sodium acetate and contains 0.3 g of glacial acetic acid. You start dyeing at 60 ° C, gradually increasing the temperature to 98 ° C and colors in 1 hour to the end. It

909 609/382

will be an excellent '. Even lemon yellow color achieved.

" _x , example

Polyacrylonitrile fibers are introduced into a bath in a liquor ratio of II 40, which contains 0.125 g per liter of the cationic dye

HX

GH.,

CH ₃

and 0.5 g of the adduct of 30 parts by weight of dimethyl-cetyl-benzyl-ammonium chloride, 55 parts by weight of urea and 15 parts by weight of monoacetylurea together with 0.25 g of sodium acetate and 0.3 g of glacial acetic acid. One begins with the dyeing at 50 ^Q C · the temperature gradually increased to 98 ° C and leaves this as VU hours. A reddish-tinged orange color is obtained, which is characterized by complete levelness.

For s ρ ie I 4

A fabric made of polyacrylonitrile fibers is im Liquor ratio 1:40 introduced into a 60 ° C bath) which per liter of 0.1 g of the cationic Dyestuff of Example 1 and 0.3 g of the adduct explained in more detail below, 0.3 g of sodium acetate and Contains 0.3 g of glacial acetic acid. The temperature of the liquor is gradually increased from 60 to 98 ° C. and the bath is kept about 90 minutes at this temperature. It becomes a pink color of perfect uniformity achieved.

The adduct used was obtained by adding 30 parts by weight of the quaternary ammonium compound, which was prepared by reacting dimethyl palm kernel fatty amine with benzyl chloride Parts by weight of urea and 15 parts by weight of monoacetylurea were fused.

Claims (2)

Patent claims: 1. Process for dyeing acrylonitrile polymers, vinylidenecyanide polymers or so from copolymers of the same with others Buildings made from vinyl compounds with cationic dyes, characterized in that that the dyeing in the presence of quaternary ammonium compounds, which may be halogen-substituted benzyl radical and one having at least 8 carbon atoms Contain alkyl radical, performs. 2. The method according to claim 1, characterized in that the quaternary ammonium compounds used in the form of their reaction products with urea or urea derivatives will. Considered publications:
British Patent No. 751 865.