Synthetic Fiber Fabric and Its Dimension Rapid Stabilization Method

Abstract

The invention relates to a quick dimension stabilization method for a synthetic fiber fabric, which includes the following steps: liquid ammonia treatment: the synthetic fiber fabric is obtained, liquid ammonia padding is carried out on the synthetic fiber fabric, the pressure of a padder is 0.1Mpa to 0.5Mpa, the speed is 10m / min to 60m / min, and the temperature is 70 DEG C to 100 DEG C; steam drying: a steam drying device is adopted to carry out steam drying on the synthetic fiber fabric treated by liquid ammonia, and the steam pressure in the steam drying device is 1kg / cm<2> to 5kg / cm<2>; post-treatment: the steam-dried synthetic fiber fabric is washed with water and dried. The method can remarkably increase the dimensional stability and product quality of the synthetic fiber fabric, and is particularly applicable to synthetic fibers with low melting points, such as polypropylene fibers, the efficiency of treatment is remarkably increased, and moreover, the production cost is low.

Description

technical field [0001] The invention relates to a fabric finishing method, in particular to a synthetic fiber fabric and a method for rapidly stabilizing its size. Background technique [0002] Synthetic fiber is a chemical fiber made by artificially synthesized linear polymer with suitable molecular weight and solubility (or meltability) through spinning and post-processing. Compared with natural fibers and man-made fibers, the raw materials of synthetic fibers are made by artificial synthesis methods, the production is not limited by natural conditions, and has the general superior properties of chemical fibers, such as high strength, light weight, easy washing and quick drying , good elasticity, not afraid of mildew, etc. Especially for polypropylene in synthetic fibers, since the 1980s, the production of polypropylene has grown at an average annual rate of more than 9%, which is much higher than the growth rate of 7.3% for polyester and 4.6% for other synthetic fibers i...

AI Technical Summary

Problems solved by technology

[0003] However, synthetic fibers have a common defect - poor thermal stability, that is, they will shrink when heated at high temperature, and the degree of shrinkage is relatively severe, and the size is difficult to control. Therefore, in actual production, synthetic fiber fabrics need to be dimensionally stabilized.

[0004] At present, synthetic fiber fabrics mostly use the method of rapid setting under high temperature conditions for finishing, but this method is not suitable for synthetic fibers with low melting points such as polypropylene; Fabrics, etc.) will also adopt the method of stabilizing the size of the fabric at medium and low temperatures and multiple settings, but this method is not only inefficient and high in cost, but also difficult to stabilize the size of this type of synthetic fiber. The shrinkage rate generally can only reach about 8%.

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