Carboxymethylcellulose warp yarn sizing agent containing 4-nitroindole

Abstract

The invention discloses a carboxymethylcellulose warp yarn sizing agent containing 4-nitroindole. The carboxymethylcellulose warp yarn sizing agent is prepared from, by mass, 10-15 parts of carboxymethylcellulose, 0.1-0.2 part of 4-nitroindole and 100 parts of water. A preparation method of the carboxymethylcellulose warp yarn sizing agent comprises the steps that carboxymethylcellulose and water are mixed to be uniform, 4-nitroindole crystals are added, the materials are stirred and then subjected to standing for 30 h to 35 h at low temperature, and after standing is finished, quick stirring is conducted to obtain the carboxymethylcellulose warp yarn sizing agent containing 4-nitroindole. The warp yarn sizing agent is applied to sizing treatment of staple fiber yarn or polyester or cotton. According to the carboxymethylcellulose warp yarn sizing agent containing 4-nitroindole, the excellent performance and the good compatibility of carboxymethylcellulose serving as the warp yarn sizing agent are retained, and meanwhile the defects that the viscosity of carboxymethylcellulose is prone to change and difficult to control are overcome, so that carboxymethylcellulose becomes a more ideal sizing material and has the good permeability, adhesive force and cohesive force; in addition, desizing is easy, the cost is low, processing is convenient, and the economic benefit is high.

Description

[0001] Technical field: [0002] The invention relates to the technical field of textile auxiliaries, in particular to a carboxymethyl cellulose warp yarn sizing agent containing 4-nitroindole. [0003] Background technique: [0004] Yarn sizing is a key link in warp preparation before weaving. When the fiber is spun into yarn, due to the basic principle of spinning and various existing spinning methods, there must be many hairiness and unevenness in the yarn evenness, which is an important cause of warp yarn breakage during weaving. At the same time, due to the smooth surface structure of commonly used textile fibers, the surfaces of these fibers in the yarn rely on the lateral pressure generated during twisting to cohere with each other. One reason. When the warp is woven on the loom, it has to withstand the repeated friction of warp stoppers, heddles and steel boxes; it also has to withstand repeated stretching, twists and impacts due to the movement of various mechanisms....

AI Technical Summary

Problems solved by technology

[0005] As the main size of warp yarn sizing, starch has a long history. Starch is a natural polymer compound, which belongs to polysaccharides. It has good adhesion to hydrophilic natural fibers and has a certain film-forming ability. It can meet the sizing requirements of fibers, so it has always been dominant in sizing as a sizing material; however, its sizing performance is not very satisfactory, and often needs various auxiliary sizing materials to make up for it; the disadvantage of native starch is that the size film is rough , brittle and hard, not wear-resistant, not easy to desizing, enzyme treatment is required; the viscosity of the slurry is high and the stability is poor; using chemical or physical methods to denature the starch, or mixing it with other sizing materials can improve the sizing effect of the starch and expand its use

The invention is used for sizing polyester staple fiber warp yarns, which can greatly reduce the amount of PVA sizing in the sizing formula and effectively alleviate the pollution of the desizing wastewater to the ecological environment. The water-based copolyetherester still has a large burden on the environment

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