国産オープンエンド精紡機“BD -200”より紡出されたBD糸およびその製品について

Abstract

We report on the quality of BD yarn and its end-uses which are mass-produced by open-end spinning Machine, BD-200, made in Japan. We also discuss about the proper use of end uses of BD yarn.The main results are as follows; BD yarn spun by the Japanese Machine : (1) has about 5% higher strength than the yarn spun by the imported Machine.(2) will haye an almost equal strength to that of ring Machine yarn without raising the cost of raw cotton, fore-spinning process and spinning condition are properly selected.(3) shows the greatest strength at the twist coefficient about 5.56.0.(4) has almost equal evenness to that of combed yarn.(5) is superior in bulkiness, abrasion resistance and dyeability owing to single thread helical construction.(6) decreases 50100% in yarn breaks during a warping and weaving process.(7) can be used for the same end-uses as those of ring-frame yarn if we pay a little consideration.(8) will give end-uses which are excellent in appearance, thickness, stiffness and harshness.