Abstract
A procedure for measuring the temperatures reached by sewing-machine needles during high-speed sewing is presented along with a quantitative evaluation of the effectiveness of several sewing finishes in reducing needle heat. It is shown that the use of sewing finishes on fabrics made of blends of nylon and wool can effectively reduce needle temperatures substantially below the melting point of nylon and thus prevent needle encrustation during production sewing of these fabrics.
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