Research on the application performance of interface finish TPOY-211SH for polyester POY filament with normal temperature and thermal box
The domestic interface finish TPOY-211SH was applied to the production of melt direct spinning 144dtex/36f polyester filament pre-oriented yarn(POY).The physicochemical properties and long-term application performance of TPOY-211SH were investigated,comparing with that of the imported finish GST-001.The results showed that TPOY-211SH had good performance in polyester POY production,with physical properties comparable to those of GST-001,and the AA grade rate reached 98.5%.The physical properties of the 75dtex/36f polyester drawn textured yarn(DTY)produced by the TPOY-211SH at normal temperature and thermal box were comparable to those of the DTY produced by GST-001,with a drawing production cycle of 35 d,which was 5 d longer than that of GST-001.The average full-bath rate,T2 abnormal rate,and dyeing M rate of TPOY-211SH and GST-001 were similar,and the amount of carbonization on the thermal box and oligomers on the friction plate were comparable to those of GST-001.