1 to 5 parts by weight of a polydiorganosiloxane polyoxyalkylene copolymer containing {TAIL ~ at least one polydiorganosiloxane segment} and {HEAD ~ at least one polyoxyalkylene segment}, said polydiorganosiloxane segment consisting essentially of 
1 to 5 parts by weight of a polydiorganosiloxane polyoxyalkylene copolymer containing { TAIL ~ at least one polydiorganosiloxane segment } and { HEAD ~ at least one polyoxyalkylene segment } , said polydiorganosiloxane segment consisting essentially of
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH