Two-component loop sewing yarn and manufacture thereof

Abstract

Two-component loop sewing yarn composed of core and effect filaments of high tenacity and low shrinkage made of synthetic polymers, having an ultimate tenacity of above 40 cN/tex, a thermoshrinkage at 180.degree. C. of below 8% and an ultimate tensile strength elongation of below 18%, has a total count of 200 to 900 dtex, its core filaments and effect filaments being in a weight ratio of 95:5 to 70:30 with the linear density of the core filaments being 8 to 1.2 dtex and that of the effect filaments being 4.5 to 1 dtex.

Dependencies are inferred from the claim text.