not only individually but also as mixtures of various emulsifiers which are useful in preparing aqueous emulsions of organopolysiloxanes when emulsifiers are optionally used in emulsions of the present invention they are preferably used in amounts of from 5 to 40 parts by weight and more preferably 5 to 20 parts by weight all based on 100 parts by weight of siloxane copolymers i the siloxane copolymers of the present invention can be varied via the choice of stoichiometry as being water soluble or as being self emulsifying so called self emulsifying systems i e they require no further auxiliaries for emulsification the siloxane copolymers can be used for treating textile fabrics textile fibers and leather as additives in coatings and paints as ingredients in cosmetic formulations and as surface active agents they have more particularly outstanding properties as textile softeners 340 g of a dried random copolymer formed from equimolar amounts of ethylene oxide and propylene oxide and having an oh number of 44 3 m n 2530 an oh number of 56 1 is to be understood as meaning 1 milliequivalent of oh g of polyether i e oh number 44 3 is 0 79 milliequivalent of oh g of polyether are initially charged under a protective gas n 2 and reacted with 38 0 g of chlorosulfonyl isocyanate while cooling the u2014 oh u2014 nco ratio is 1 00 the spontaneous exothermic reaction ends on completing the metered addition of.