Abstract: The paper discusses the technical features that influence the combing process of Model PX 2 and Model CJ40 combing machines. It suggests increasing the total number of combing points of the cylinder by using the cylinder with wire face angle of 90°, delaying the positioning of the cylinder, properly narrowing the combing gauge at the front and back of the cylinder and offering enough space for fibers, so as to effectively lower the IPI value of the resulted yarn. A series of technical measures such as controlling the air flow of the comb-out suction tube, the status of air circuit and special components and optimizing process settings can help improve the quality of the combed web, hence the quality of the resulted yarn.

Key words: combing machine; combing gauge; total combing points; wire face angle of cylinder; clearness of web