Analysis Of New Technology Of Semi Gelatinization, Energy Saving, Environmental Protection Sizing And Slurry Production

< p > "medium temperature sizing, normal temperature sizing, energy saving and emission reduction" become the biggest highlight of semi gelatinized green sizing technology.

As an excellent product that can replace PVA sizing in 2013, the project has achieved an output value of 370 million yuan from 2010 to 2012, achieving a profit of 17 million 570 thousand yuan and a tax of 4 million 452 thousand yuan.

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< p > sizing is an indispensable part of weaving before < a href= "http://www.91se91.com/news/index_c.asp" > yarn > /a >. However, at present, sizing is based on "PVA+ modified starch + polypropylene + assistants", which is modulated by high temperature and high pressure into water-soluble slurry.

The method of sizing is to boil the pulp and keep it for more than 30 minutes in the pulp mixing tank. During the whole sizing process, the temperature of the slurry tank should be kept above 92 C.

This sizing method is characterized by long sizing time, high energy consumption and cumbersome operation. In most cases, PVA slurry is needed.

For this reason, sizing workers have developed many new sizing processes and achieved remarkable results, but there is still a distance from the target of energy conservation and emission reduction.

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< p > the new technology of "semi gelatinized energy saving, environmental protection sizing and slurry manufacturing" developed by Tianhua enterprise development (Suzhou) Co., Ltd. and Xi'an Polytechnic University, is based on the research of starch characteristics and sizing technology, and puts forward a semi gelatinization sizing technology to achieve energy saving and emission reduction in sizing process.

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< p > as the first adult of the project, Dr. Wu Hailiang, Professor of the school of textiles and materials, Xi'an Polytechnic University, introduced the technological innovation of the half gelatinization project from the general idea: "we established the theory of semi gelatinized warp sizing technology, analyzed the mechanism of the semi gelatinized warp sizing technology, developed a semi gelatinized slurry control system, and established a semi gelatinized slurry modulation method."

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< p > after that, the team established a new physical and chemical method to produce high performance denatured < a href= "http://www.91se91.com/news/index_c.asp" > starch sizing > /a > technical route. At the same time, chemical action including esterification, etherification, compounding, grafting, and physical field function, such as plasma, ultrasonic wave and eddy current effect, were used to control and catalyze the starch effectively and make it deeply modified. This method effectively overcomes the disadvantages of long process, high pollution and high cost of modified starch slurry production.

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< p > Wu Hailiang further stated that on this basis, the researchers created a new method to detect the coating and soaking state of the slurry on the warp, and developed a new method based on SEM to detect the coating and soaking state of the slurry on the warp. The method is simple and effective, and greatly reduces the working intensity of the experimenters.

This innovation played a great role in the characterization of half gelatinization mechanism.

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< p > then, the advantages of half gelatinization < a href= "http://www.91se91.com/news/index_c.asp" > sizing process < /a > are embodied in the actual production process. Tianhua enterprise development (Suzhou) Co., Ltd. has made a significant contribution to the applicability and stability of the slurry as an application enterprise. "Medium temperature sizing and sizing at room temperature" has become the biggest aspect of the project. Chief engineer Shi Bosheng briefly introduced its characteristics from 8 aspects.

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When corn starch is used, it will not block the slurry pipeline when the slurry is suspended, and the slurry can be used at room temperature (the traditional process must be used at high temperature). It can save energy and improve the production environment. The slurry tank has the advantages of easy control of viscosity, less power consumption, less power consumption, prolonged service life and service life of the grouting system components, and easier control of the proportion of slurry penetration and coating. By improving the quality of the coating, it can improve the wearability and hairiness of the sizing agent. The quality of the slurry is stable, and the slurry is not frozen. It can be preserved for a long time without deteriorating, and it can be preserved for a long time. The slurry efficiency is improved. The size of the slurry is reduced, and the formula is less component and multifunctional, and the raw material procurement, storage and management are more convenient. < p > the slurry temperature is only about 65 C, which can save steam and related energy.

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