Abstract: Compounds of the formula IR.sub.1 --CH(R.sub.2)--N(R.sub.3)--R.sub.4 (I)in which R.sub.1 is unsubstituted or substituted phenyl, R.sub.2 is hydrogen lower alkyl, unsubstituted or substituted phenyl or free or esterified carboxy, and in which R.sub.3 is hydrogen or lower alkyl and R.sub.4 is a group of the formula --alk.sub.1 --X--alk.sub.2 --R.sub.5, or R.sub.3 and R.sub.4 together are a group of the formula --alk.sub.3 --NH--alk.sub.4 --, alk.sub.1 and alk.sub.2 being lower alkylidene, alk.sub.3 and alk.sub.4 lower alkylene, X a direct bond, methylene or unsubstituted or substituted phenylene and R.sub.5 being hydroxy, amino or substituted amino of the formula --N(R.sub.6)--CH(R.sub.7)--R.sub.8 in which R.sub.6 is hydrogen, or, provided that R.sub.3 is hydrogen, it may alternatively be lower alkyl or unsubstituted or substituted phenyl-lower alkyl, R.sub.7 is hydrogen, lower alkyl, unsubstituted or substituted phenyl or free or esterified carboxy and R.sub.

Abstract: The invention provides a process for increasing the affinity for anionic dyes of undyed water-insoluble high molecular weight organic compounds containing groups which can be alkylated, which process comprises reacting the high molecular weight compound with an ammonium salt of the formula: ##EQU1## in which X signifies chlorine or bromine.Y signifies a radical of formula --CH=CH-- or a phenylene radical which is unsubstituted or substituted by up to a total of 2 alkyl groups which may be methyl or ethyl,R.sub.1, r.sub.2 and R.sub.3, independently signify hydrocarbon radicals consisting of aromatic and/or saturated aliphatic units, orTwo of R.sub.1, R.sub.2 and R.sub.3 jointly with the N atom form a heterocyclic ring, which is selected from heterocyclic rings containing one nitrogen atom, two nitrogen atoms and one nitrogen atom and one oxygen atom, and the other signifies a hydrocarbon radical as defined above or a further bond when the ring is unsaturated,The total number of carbon atoms in R.sub.1, R.sub.