Abstract: The first design and construction of a stainless steel reactor. On this basis, for ultra-high molecular weight hydroxy-silicone oil and the synthesis and optimization, and ultimately determine both the selection and to meet proportion of wool special slippery silicone oil. The results show that: dehydration time for 2 hr, the amount of catalyst 0.01 percent, temperature control in the 160 ℃. Imported D4, will be satisfied with the ultra-high molecular weight hydroxy silicone oil, the oil and oil-fit and fabric processing know: ultra-high molecular weight hydroxy silicone oil and oil-ratio of 2:1 compound, a molecular weight The oil-and small-molecular-weight oil by 1:1 ratio complex, will be better integrated smooth, soft, fluffy results.