combing yarn
2.By means of mixing Xinjiang Long staple cotton and 20% uplands cotton,in blowing carding unit composed of china made machines without condensers in the whole process and imported single unit and spinning system,which after combing onedoubling and spun yarn with pneumatic loading system,take the process technology measures,such as light constant weight,slow speed,short gauge,strengthening combing combinaion and lightening elastic top rollers etc. All these may efficiently improve the quality of fine high counts yarn,such as CJ7 3 tex etc.
4.Semi finished products and yarn quality of C4 combing system & FA201 combing system is compared,this paper considers that short fibres of card sliver is not main question in combing system,in condition of output of C4 card is more one time than that of FA201 card,semi finished products and yarn quality of C4 card is better than that of FA201 card.

