Process,structure and properties of four-component filament/staple fiber core-spun yarn

The four-component filament/staple fiber corn-spun yarn is spun on FA506 ring spinning frame with PET/PU interlaced yarn and wool/rabbit-hair blended roving as outer sheath.The spinning process was analyzed.Mechanical properties of the four-component filament/staple fiber core-spun yarn and its core yarn(PET/PU interlaced yarn) were tested by electronic single yarn strength tester,the hairiness was tested by hairiness tester,and the evenness was tested by electronic evenness tester.The results show that the elastic recovery rate of the four-component filament/staple fiber composite core-spun yarn is good under the conditions of small deformation with few hairiness and good evenness,and can be used as a new type of knitting yarn for sweater.