Ciba-geigy Corporation

Ciba-geigy Ag

John Francis Keenan

James Jack

Cyril Hobday

Brian Hewitt

Brian G Clubley

Thomas G Hyde

Leonard Walter Burns

George Samuel Corbishley

The invention provides triaryl phosphates of the general formula ##STR1## wherein x is 1 or 2, R.sub.1 is hydrogen, R.sub.2 and R.sub.3 are the same or different and represent hydrogen, t-butyl or isopropyl, R.sub.4 is hydrogen or an isopropyl group and R.sub.5 is an isopropyl group, with the proviso that at least one of the aryl radicals is a di-isopropylphenyl radical, but not more than two of the three aryl groups are identical.

Triaryl phosphates

A batchwise process for dyeing hydrophobic fibres at 110.degree. C. to 135.degree. C. with a disperse dye in the presence of an adduct of an average of 1 to 4 molar proportions of ethylene oxide, propylene oxide or styrene oxide or a combination of these oxides with 1 molar proportion of a phenol compound having the formula ##STR1## in which n is a number from 1 to 4,

Process for the dyeing of hydrophobic fibres

A process for the colouration of polyacrylonitrile textile fibres, wherein said fibres are coloured by printing or pad-steaming with a cationic dye in the presence of a carrier consisting of least one compound having the formula ##EQU1## in which Y is an oxygen or sulphur atom and m is a number from 1 to 2, obtaining on said fibres a rapid fixation of the cationic dye and a high colour yield.

Process for the colouration of acrylic fibres

Process for the colouration of acid-modified synthetic textile fibres, particularly polyacrylonitrile fibres or basic dyeable polyester fibres, wherein said fibres are coloured with a cationic dye in the presence of a compound of the formula ##EQU1## wherein R is a chloro-substituted phenyl group, Z is hydrogen or methyl and n is an integer from 1 to 3, obtaining on said fibres a rapid fixation of the cationic dye and an outstanding colour yield.

Growing community of inventors

Cheadle, United Kingdom

John Francis Keenan