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BACKGROUND In 1991, textile researchers at Universities in Eastern Europe introduced a change in the traditional manufacture of ring-spun yarn. Condensation of the roving web prior to entering the spinning triangle produced a less hairy and more compact yarn structure. Surface fibers from the condensed roving provided reduced protruding surface hair and a smaller diameter […]
BACKGROUND Formaldehyde modified resins were introduced to the apparel market in the 1950’s. These finishes imparted a no-wrinkle character to cotton fabric and promised relief from the tedious job of ironing apparel. Preliminary marketing studies on the concept was an immediate and huge success. Optimism for this new market potential turned out to be premature. […]
A dramatic improvement in yarn manufacture was adopted by the industry and went horribly wrong. Negative economic consequences were so great that improvements justifying the adoption of the technology have been ignored.
Physical properties of warp yarn are improved by incorporating oligomer resin into the yarn interior at the size box. These improvements yield benefits at each step of the fabric formation process from size box to the woven greige fabric. Warp sizing technology has been in a period of stagnation following the introduction of synthetic polymers into size formulations nearly 60 years ago. As noted in the following “Warp Sizing: A Brief History”, abrasion-resistant surface barriers may have reached optimum performance in sizing.
Higher quality yarn improves the weaving process. Introduction of very small non-film forming resin particles in conventional size formulations modify and provide improved fiber cohesion in the warp yarn bundle. This transient effect provides a more compact and improved yarn substrate to host conventional warp size polymers on the yarn surface. Evaluation of this technology in producing mills has provided positive results in all factors associated in the weaving process.
Nanometer (Nm) resins have been shown to modify fiber behavior in existing textile yarn. Incorporation of nanometer (Nm) resins in conventional warp size formulations improve weaving performance, improve fabric quality and reduce cost.