Treatment of textile fabrics with epoxy-polyoxyalkylene modified organosilicones

Claim 1

A process for imparting a durable, soft, hydrophilic finish to a textile material which comprises: (A) applying to said textile material, in an amount sufficient to improve the softness thereof, an organosilicone terpolymer of the formula MD.sub.x D.sub.y 'D".sub.z M wherein M, in each occurrence, is an end-capping unit of the formula A 3 SiO 1/2 in which A is a monovalent organic radical free of olefinic unsaturation or hydroxyl bonded directly to the silicon atom, or M is alkoxy of 1 to 13 carbon atoms; D is a unit of the formula R 2 SiO wherein R is a monovalent hydrocarbon radical free of acetylenic unsaturation; D' is a unit of the formula RR'SiO wherein R is a monovalent hydrocarbon radical free of acetylenic unsaturation and R' is a polyoxyalkylene unit of the formula --C.sub.n H.sub.2n (OC.sub.2 H.sub.4).sub.a (OC.sub.3 H.sub.6).sub.b OR" in which R" is hydrogen, acyl of 1 to 8 carbon atoms or a monovalent hydrocarbon radical from 1 to 13 carbon atoms, n is an integer having an average value from 1 to 8, and a and b are integers such that the sum of a+b is from 5 to 200 and the quantity a÷(a+b) is from 1.0 to 0; D" is a unit of the formula RR'"SiO wherein R is a monovalent hydrocarbon radical free of acetylenic unsaturation and R'" is a monovalent organic radical containing at least one vicinal epoxy group; x is an integer having an average value of from 10 to 5,000; y is an integer having an average value from 1 to x; and z is an integer having an average value of from 1 to 0.5x; provided that the sum y+z is not greater than 0.75x; and (B) curing the organosilicone terpolymer on the textile fabric.