Composite biological enzyme waste denim decoloring preparation and decoloring process system

Abstract

The invention provides a composite biological enzyme waste denim decolorizing preparation, a using method of the composite biological enzyme waste denim decolorizing preparation for treating denim leftovers, and a decolorizing process system and method. The decoloring preparation comprises the following components by content: 1.5%-2.0% of cold bleaching enzyme, 1.0%-1.5% of laccase, 5.0%-10.0% ofthiourea dioxide, 31.5%-71.5% of chlorine dioxide, 20%-53.5% of sodium percarbonate and 1.0%-1.5% of urea. Each single enzyme of the composite biological enzyme preparation provided by the invention has the characteristics of low reaction temperature and high reaction speed which are most suitable for enzyme activity, the labor, water and energy are saved, and injury to health of workers is avoided; and the solid preparation is convenient to store and convenient to transport and use. The water use amount of the decoloring process system is small, the decoloring process system can be used conveniently, a discharge process does not exist, and the decoloring process system is environmentally friendly; and the process is advanced, the degree of automation is high, the preparation can be produced continuously all seasons, running, oozing, dripping and leaking are avoided, and three wastes are also avoided.

Description

technical field [0001] The invention belongs to the technical field of decolorization of waste denim, and specifically provides a compound biological enzyme decolorization preparation of waste denim and a decolorization process system. Background technique [0002] At present, my country is a big country in the use of textiles, and the annual production of waste textiles exceeds 26 million tons, including 12 million tons of denim scraps. Due to the difficulty and low efficiency of the utilization of waste denim leftovers, the comprehensive utilization of waste denim leftovers in my country is still in the initial stage of development. The comprehensive utilization of waste denim leftovers is an important work that will benefit the future and is an important measure to ensure the stable resources and sustainable development of my country's textile and paper industry. [0003] Therefore, vigorously carrying out the comprehensive utilization of waste denim leftovers is conduci...

AI Technical Summary

Problems solved by technology

[0005] The main problems in the traditional process are as follows: (1) The main reason is that the water consumption is large (generally, it takes at least 220m2 to wash one ton of cloth). 3 water), the water cannot be directly reused without treatment, causing great pollution to the environment

⑵All chemical reagents are all inorganic salts, with high chloride ion content, strong odor and poor safety, which will cause great harm to the health of workers

⑶ The technology is backward and the degree of automation is low; the phenomenon of running, popping, dripping and leaking is serious, and the waste water, waste gas and solid waste are not effectively and reasonably treated

⑷The quality of the product is unstable, the stirring is not carried out within the effective time, the chemical reagents and the cloth cannot be fully contacted, the reaction is insufficient, the whiteness is uneven, and the elasticity is reduced; the reaction time is long and the output is low

⑸ The hygienic conditions are unqualified, and the fabrics have not been sterilized when they enter the factory, and there is a possibility of germ infection, which does not meet the national sanitary standards for solid waste recycling

⑹The product utilization rate is low and can only be used for low value-added products; it is not energy-saving and environmentally friendly; the production cannot be continuously produced around the clock, the cost of water treatment is high, and the pollution is high

⑺Large area, low land utilization rate; high labor intensity and low labor efficiency; poor dust removal effect, large production safety hazards; high comprehensive production cost

⑻Differences in decolorization time and quality of denim of different types and colors, cannot be decolorized at one time, the elasticity of denim fabric decreases, and it is prone to burning or yellowing of the fabric

[0006] It can be seen that there is still room for improvement in the decolorization process of waste denim

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