Causes Analysis and Test for Siro Spinning Fiber Escape Loss
In order to enhance the quality level and product rate and reduce fiber escape loss of siro spinning viscose yarn,the influence of siro spinning fiber escape is reduced from two as-pects of spinning raw materials and equipment preparation.The fiber shape and distribution of twisting triangle area between ordinary siro spinning and compact siro spinning is compared,the relationship of the length of spinning twisting triangle area and fiber escape loss rate,as well as the principle of fiber escape is analyzed.Take the spinning of R 7.38 tex variety of siro spinning yarn as an example,the effects of different roving weight,flared mouth space and the front impulse of the output cots on the fiber escape loss rate and yarn quality are compared and analyzed.It is pointed out that good equipment condition,suitable accessories and parts,reason-able process parameters,lower roving weight,smaller flared mouth space and appropriate in-crease of the front impulse of the output cots can reduce the fiber escape loss rate and improve the yarn quality,but the fiber loss of ordinary siro spinning is inevitable due to the limitation of yarn forming principle.