It analyzed the testing principle of shrinkage in boiling water for polyester textured yarn,and introduced applying the Texturmat M to determine the parameters such as preset tensile force,speed and load time.

Discussion on issues of smoke extraction of polyester filament spinning workshops;

Development of polyester filament core yarn sewing thread;

Production and technical characters of direct spinning line of polyester filament in large capacities;

The plasticizer,dioctyl terephthalate is synthesized from terylene waste and isooctyl alcohol,sifts several solid superacids as catalyst,with S_2O~(2-)_8/ZnO-WO_3 as catalyst.

Process characters of PET filament twisted by high temperature heater box;

Selection of spinneret for PET filament production;

TCS process for colored profiled PET filament;