ミシン用カタン糸 (ロービキ糸とフツウ糸) の強度について
1974 年 25 巻 7 号 p. 519-523
詳細
1974 年 25 巻 7 号 p. 519-523
The physical properties of sewing thread, waxed and untreated, were studied in the previous report. From this experimental work it was found that the tensile strength of waxed thread was greater than that of untreated one. The present paper discusses the effects of laundering and sewing on the strength of waxed thread.
The results obtained are as follows :
(1) The strength of waxed thread lowered significantly after sewing and laundering and became nearly equal with that of untreated thread after 20 times of laundering.
(2) The configurations of the load-elongation diagrams of waxed and untreated thread differed significantly between them. But they became nearly equal after 10 times of laundering.
(3) The seam strength of the fabrics sewn with waxed thread was greater than that of the fabrics sewn with untreated one. The difference between them, however, could not be found after 2030 times after laundering.
The influence of laundering on the waxed seam strength was smaller than that on the waxed thread strength.
