Polyytrimethylene terephthalate fiber cross-blended yarn and its production process

Abstract

This invention relates to the polyterephthalic acid propane diols ester fibre mixing spinning and its production technology. This invention includes output and method. And this product is spinned by the following steps: spinning with the PPT polyster short fibre and cotton, spinning with the PPT polyster short fibre and mucilage glue, modal, Lyocell, tencel knitted fabric fiber; spinning with the PPT polyster short fibre and wool, pashm, knitted fabric fibre. This technology uses the conventional device of the national cotton factory, wherein the clear cotton is the best as the comb pin; and the relative humidity of the clear cotton should be high; the clear cotton of the comb cotton should be kept well; and in the drafting and roving working procedure, it needs a higher humidity and not high temperature; the ration of the roving should be controlled in a fit mount; the twist modulus is to be 280-340ú¼ the combined roots should be 6 as its best. The product in this invention has a better handle and simulating characteristic.

Description

technical field [0001] The patent of the present invention relates to the spinning process in textile engineering, which refers to the blended yarn of polytrimethylene terephthalate fiber and its production process. Background technique [0002] PTT is polytrimethylene terephthalate, which is a kind of polyarylate resin, which is formed by polycondensation of 1, 3-propylene glycol (PDO) and terephthalic acid. PTT fiber has excellent softness, low temperature dyeability (lower than PET), bulkiness and elasticity, has broad application prospects, and is predicted to become a large-scale fiber in the 21st century. The R&D and production of PTT polyester staple fiber is the research direction of some chemical fiber enterprises dedicated to the research of new modified polyester in the past two years, because the physical and mechanical indicators and performance of PTT fiber are better than those of PET. The successful development of this staple fiber will gradually replace the...

AI Technical Summary

Problems solved by technology

At present, there are very few domestic chemical fiber enterprises that can develop and produce PTT staple fibers, and all of them are made of imported particles, and the elasticity and high elongation of PTT are multiples of conventional polyester, making the quality of staple fibers uncontrollable. The subsequent process of processing PTT raw materials produced by domestic enterprises into yarns and fabrics has brought great difficulties to textile mills in production

In addition, although foreign companies have used PTT raw materials to process reports and real objects into fabrics, they are all processed from filaments, and there are no examples of using PTT raw materials to process blended spun yarns.