PROPERTIES OF A FABRIC MADE WITH TANDEM SPUN YARNS

A totally new, integrated tandem spinning system was used to produce u nique, 65- and 54-tex, core-wrap, composite yarns consisting of a high tenacity polyester staple core (40%) and a pure cotton wrap/sheath (6 0%). The yarns were conventionally processed on standard textile equip ment in winding, warping, sizing/slashing, and weaving, and converted into a 220 g/m(2), 2/1-twill fabric, which was permanently heat set in the greige stage and then pad-batch desized, scoured, and bleached. O ne portion of the fabric was dyed for cotton only, and the rest was un ion-dyed for both constituent fibers. One-half of the union-dyed fabri c was finished with a softener only, and the other half was specially finished with a softener plus a light, 5% DMDHEU resin finish. The dif ferently treated fabrics were then evaluated for selected important pr operties such as Dp rating, shrinkage, tensile and tear strengths, fle x abrasion resistance, bursting strength, air permeability, overall co re-coverage, and certain hand attributes. This paper is the first to e xamine and report the properties of a tandem-spun-yarn fabric.