Detailed introduction of wool-like polyester in 2020

Wool-like polyester is a low-strength, high-elongation, low-modulus polyester that imitates natural animal hair. Wool-like polyester has gone through four generations: the first generation product has been withdrawn from the market; the second generation product not only maintains the original characteristics of conventional polyester, but also has rigidity, flexibility, bulkiness, softness and freshness, while adding wool It has excellent qualities such as feeling, anti-pilling, cationic dyeability and moisturizing, and is close to wool in terms of appearance, hand feeling and wearing performance;

The third and fourth generation products have developed towards multi-function (such as flame retardant, breathable, moisture-permeable, etc.), and their performance has reached or exceeded the level of wool fibers. Wool-like polyester is mostly used in three categories. The first category is traditional polyester/viscose (T/R) and polyester/cotton (T/C) medium and long wool-like products. The second category is polyester staple fiber (top) wool-like products. The third category is polyester filament wool-like products.

(1) Polyester staple fiber (top) wool-like products:

①High shrinkage wool-like polyester staple fiber: After physical and chemical modification, the fiber has a shrinkage rate of 15%~55%, and then mixed with ordinary polyester with a shrinkage fiber of 30%~40% to obtain a wool-like effect;
②Three-dimensional crimped polyester staple fiber: made of special-shaped spinneret and asymmetrical blowing method;
③Colored polyester staple fiber: made of polyester and polyester masterbatch blended yarn;
④Anti-pilling polyester staple fiber. It is obtained by copolymerization modification and blended spinning.

(2) The wool-like polyester products mainly include:

①Network filaments: One or several bundles of multifilaments pass through a special spinneret, and under the action of jet air, the filaments are staggered, rotated and cohesive to form periodic entanglement points to make network filaments or mixed filaments; Air-textured yarn [namely, jet-textured yarn]: The chemical fiber filament is compressed air at room temperature, through a special nozzle, the single filament is tightly intertwined with each other, and many silk loops or fluff distributed on the surface form a novel long yarn. Silk. Using wool-like polyester filaments and staple fibers, it can be made into high-grade fabrics such as wool-like gabardine with superior performance.

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