How to make pu castor surface more smooth, raw lacquer was carried out on the surface of pu castor processing, chemical coating processing, mainly the mechanism of acid treatment or ultraviolet light, add a layer of mulch in the surface of pu castor, or by damage to the chemical bond rupture, make it on the surface of pu castor form a low molecular layer of oxide layer, after the surface treatment of polyurethane casters suitable for spinning. Increase the friction coefficient of polyurethane casters, is conducive to the grip and the improvement of fiber yarn evenness evenness. But the friction coefficient is big, is easy to produce static electricity, the pu castor around the flowers, to make production. To all kinds of the surface of pu castor, for all kinds of chemical coating contains a variety of strong polarity of resin and aliphatic, eyes in eyes with butyl rubber crosslinking curing into a film. Penetrating agent makes the coating can penetrate into the rubber surface, forming flexible good molecular chains, make coating toughness, impact resistance, resistance to bending, and good abrasion resistance, and can withstand oil, acid and alkali resistance and ozone resistance and other properties. Antistatic agent in coatings and form a thin film on the surface of pu castor, reduces the friction coefficient on the surface of the pu castor, reduce the adhesion of polyurethane casters and winding phenomenon, make the production on the rails. Production practice showed: the good performance of spinning draft pu castor, must match with good surface treatment technology. Choose appropriate, has the good put wet absorption, antistatic property and wear resistance of coatings, apply surface coated with polyurethane casters, through the reasonable matching between coatings and chemical reaction, to fill gaps on the surface of the pu castor, make the surface smooth, coating and firm, smooth and cool dry. Make pu castor better play its effectiveness to reduce winding, stable production and improve the optimal spinning performance, improving yarn quality, prolong the service life of the pu castor. More news and information about pu castor please click: hynews / 182. html