Jean warp sizing slurry and sizing process

Abstract

The invention provides a jean warp sizing slurry and a sizing process. The slurry is prepared from DSC-14 starch, PVA, LMA-95 synthesis slurry, emulsified oil and a smoothing agent. In comparison with the prior art, the sizing slurry and process ensures that the warp abrasion resistance is greatly improved, the weaving performance is enhanced and the cost is lowered. Besides, the use amount of slurry and pollution are reduced, the existing technological process does not need to be changed significantly, the investment is relatively low and the effect can be taken rapidly.

Description

technical field [0001] The invention relates to a denim warp sizing material and a sizing process. Background technique [0002] In the production of textile mills, except for some strands, strong twisted yarns and certain types of yarns, most warp yarns must be sized before weaving. This pre-weaving preparation process is called warp sizing. The fundamental purpose of warp yarn sizing is to improve the weavability of warp yarn, so that its reweaving can withstand the strong mechanical action on the loom. Traditionally speaking, there are three purposes of warp sizing, which are strengthening, elongation and wear resistance. Therefore, the indicators to identify the sizing effect and sizing quality are the sizing rate, moisture regain, elongation rate on the sizing machine, and the enhancement rate and elongation reduction rate of the sizing quality. After discussion and certification in many national sizing seminars in the 1980s, it was clear that the main purpose of war...

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Problems solved by technology

The research results of solvent sizing are satisfactory, but it is impossible to use in practice, and has no industrial use value. Although the volatilization of solvent can be solved by filtration and negative pressure method, the gall still cannot eliminate the air pollution. pollution problem

It is understandable that pre-wet sizing improves the suction conditions. Whether it can directly increase the adhesion of the pulp to the fiber is debatable, but it will cause large fluctuations in the concentration of the size in the size tank, which increases the wet sizing capacity of each machine. The length and action time of the mechanical stretching of the piece will lead to an increase in the elongation of the warp yarn, and the increased cost of this pre-wetting device is also a considerable investment

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