Disperse dyeing of polyester with benzalketo derivatives as carriers: benzalacetone, methyl cinnamate etc.

DETAILED DESCRIPTION What is claimed is: 1.
A method of dyeing a polyester or polyester blend textile material with a disperse dyestuff which comprises exhaust dyeing in a dyebath to which has been added before the introduction of the textile material a dyeing carrier of formula ##STR3## wherein R is (C.
sub.
1-4)alkyl or (C.
sub.
1-4)alkoxy, each of R.
sub.
1 and R.
sub.
2, independently, is hydrogen, halogen, methyl or ethyl, and each of R.
sub.
3 and R.
sub.
4, independently, is hydrogen, halogen, hydroxyl, (C.
sub.
1-2)alkyl or (C.
sub.
1-2)alkoxy, or a mixture of such dyeing carriers.
2.
A method according to claim 1, in which R.
sub.
1 is hydrogen.
3.
A method according to claim 2, in which R.
sub.
2 is hydrogen.
4.
A method according to claim 1, in which one of R.
sub.
3 and R.
sub.
4 is hydrogen.
5.
A method according to claim 4, in which one of R.
sub.
3 and R.
sub.
4 is hydrogen, and the other is hydrogen, chlorine, hydroxyl, methyl or (C.
sub.
1-2)alkoxy.
6.
A method according to claim 1, in which one of R.
sub.
3 and R.
sub.
4 is halogen, and the other is halogen, hydroxyl or (C.
sub.
1-2)alkoxy.
7.
A method according to claim 5, in which each of R.
sub.
3 and R.
sub.
4 is hydrogen 8.
A method according to claim 7, in which the dyeing carrier is benzalacetone.
9.
A method according to claim 7, in which the dyeing carrier is methyl cinnamate.
10.
A method according to claim 1, in which the concentration of the carrier or carriers in the dyebath is 0.
4 to 5 g/l.
11.
A method according to claim 1, in which the dyeing carrier or carriers are used in association with an emulsifier or mixture of emulsifiers.
12.
A method according to claim 2, in which the carrier or carriers constitute 5 to 95 weight percent, the emulsifier or mixture of emulsifiers 5 to 25 weight percent, and a solvent or mixture of solvents 0 to 80 weight percent of the formulation 13.
A method according to claim 11, in which the emulsifier or mixture of emulsifiers is selected from mono-2-ethylhexyl sulphosuccinate, sulphonated castor oils and addition products of isooctylphenol with up to 100 units per molecule of ethylene oxide followed by chloroacetic acid to form a terminating group