DE1617698C3 - Hair dye - Google Patents

Description

example 1

The invention relates to hair colorants, consisting of a hair colorant is produced from the following components of nitro dyes and conventional additives that share: are characterized in that the nitro dyes 35. . ,. . ,,,. _; ...,

Mono-halogenamines of the formula ' ^m ]'',",.,", ,, -j,.,.,

^b aminobenzene dihydrochloride ... 1.44 g

NO _{2 R} lauric alcohol, which is 10.5 mol

I s ethylene oxide is oxyethylated .... 5 g

_v / ~ 7 ~ ϊ \ χι sodium hydroxide as much as required

YC \ J) N 40 ι ι ■, C- T ₁ -,

\ / \ ^q derhch for pH 3

\ / - u \ ν water to make up to 100 ecm

(CH ₂ ) ,, - X

This agent is decolorized on for 20 minutes

are, where Y for NH ₂ or OCH ₃ , R for H, applied hair. The hair is subsequently

45 rinsed, washed, rinsed again and dried. QQ _ / ^/ q ^N \. A rosewood color is obtained.

or B e i s ρ i e 1 2

A hair dye is made from the following ingredients:

η represents 2 to 6 and X represents halogen. l-methoxy-3-nitro ^ / i-bromoethyl

Compounds of the above formula in which X is ΪΤϊί? k 1 in

Bromine atoms are particularly advantageous. 55 ethyl alcohol IU g

Are produced in the hair Launnalkohol according to the invention, which with 0.5 mol

Colorants used new Μοηο -,., - haloalkyl _XT ethylene oxide is oxyethylated .... 5 g

amines by reacting 2-nitro-p-phenylene sodium hydroxide (1-n) as.el as

diamine or 2-nitro-p-anisidine with benzenesulfochloride _w °? ~ a mn '''"r ? m ί 3

or p-toluenesulfonyl chloride. The so obtained mono- 60 ^{water ZUm Aufrullen to} - ¹⁰ O ^

substituted sulfonamide is then with alkali or This agent is left for 20 minutes at room

Alkaline earth hydroxide or sodium alcoholate or Na- temperature act on bleached hair. The hair

triumamid in the appropriate alkali or earth are then rinsed, shampooed, again

alkali compound transferred and the latter separated. rinsed and dried. You get a mother-of-pearl

This connection is then given a u, o> -Di- 65 shiny orange glowing hue.

Claims (2)

Patent claims: 1. Hair dyes, consisting of nitro dyes and conventional additives, characterized in that that the nitro dyes are mono-haloalkylamines of the formula NO _{2 R} (CH ₂ ), - X are, where Y is NH ₂ or OCH ₃ , R is H, - SO, - < O O> —CH, η represents 2 to 6 and X represents halogen. 2. Hair dye according to claim means a bromine atom. haloalkane of the general formula X - (CHt) ₁ , --X, in which X and η have the meanings given above, reacted and optionally hydrolyzed the no-haloalkylated sulfonamide obtained in this way to convert it into the N-fi-haloalkylated secondary amine convict. The condensation of the alkali or alkaline earth compound of the sulfonamide with the u, r »-dihaloalkane is expedient in an aprotic, polar ίο solvent, such as. B. dimethylformamide made. But it is also possible to effect this condensation by heating a suspension of the alkali or alkaline earth compound of the sulfonamide to be carried out under reflux in an excess of the ii, f> -dihaloalkane. The colorant according to the invention can also contain conventional cosmetic additives, such as wetting agents, Contains perfumes and the like in the form customary in the industry. Compare with recognized commercial products such as Nitro-p-phenylenediamine or 1-methoxy-3-nitro-4-aminobenzene have shown that the hair dyes according to the invention are surprisingly larger Have washfastness than the known commercial products. where X The production of the new dyes is in the Luxembourg patent 49,213; the following examples illustrate the invention Hair dye.