Pretreatment finishing agent for opening filter material and application of pretreatment finishing agent

A pretreatment and finishing agent technology, which is applied in the processing of textile materials, liquid/gas/steam textile material processing, fiber processing, etc., can solve the problem of fiber damage that increases the difficulty of pulling out, and it is difficult to prepare high value-added products and regenerated fibers. Large damage and other problems, to achieve the effect of facilitating subsequent carding, reducing friction coefficient, and reducing damage

Inactive Publication Date: 2020-05-12
ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the regenerated fibers opened by the current method have disadvantages such as large damage, short fiber length, and reduced strength. How to open fibers with better performance such as length and strength is the key research content of mechanical opening recycled fibers
[0004] At present, mechanical opening is used to produce recycled fibers in China, and the overall length of opened fibers is generally short, making it difficult to produce high value-added products
The base fabric in the filter material is mostly twisted and complicated weaving process, which increases the difficulty of pulling out the base fabric from the filter material and damages the fiber during the carding process

Method used

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  • Pretreatment finishing agent for opening filter material and application of pretreatment finishing agent
  • Pretreatment finishing agent for opening filter material and application of pretreatment finishing agent
  • Pretreatment finishing agent for opening filter material and application of pretreatment finishing agent

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Preparation of pretreatment finishing agent for filter material opening:

[0034] (1) 40 parts by weight of polyethylene glycol (average molecular weight is 400), 15 parts by weight of polytetrafluoroethylene emulsion with a solid content of 60%, 12 parts by weight of simethicone emulsion, 5 parts by weight of dioctadecyl di Methyl quaternary ammonium salt, 0.5 parts by weight of potassium monododecyl phosphate, and 130 parts by weight of deionized water are mixed; the damage of carding machine clothing to fibers in the opening process is reduced by polyethylene glycol, and dimethyl silicone oil, Dioctadecyl dimethyl quaternary ammonium salt and potassium monododecyl phosphate make the filter material fluffy and soft;

[0035] (2) Stir at 60°C. Stirring method: first rotate forward, the speed of forward rotation is 150rpm, and the stirring time is 2h. 2h, continue to invert at 800rpm for 40min, and make a pretreatment finishing agent after stirring.

[0036] Apply the...

Embodiment 2

[0043] Preparation of pretreatment finishing agent for filter material opening:

[0044] (1) 60 parts by weight of polyethylene glycol (average molecular weight is 400), 25 parts by weight of polytetrafluoroethylene emulsion with a solid content of 60%, 20 parts by weight of simethicone emulsion, 8 parts by weight of dioctadecyl di Methyl quaternary ammonium salt, 1.5 parts by weight of potassium monododecyl phosphate, and 130 parts by weight of deionized water are mixed; reduce the damage of carding machine clothing to fibers in the opening process by polyethylene glycol, simethicone, Dioctadecyl dimethyl quaternary ammonium salt and potassium monododecyl phosphate make the filter material fluffy and soft;

[0045] (2) Stir at 60°C. Stirring method: first rotate forward, the speed of forward rotation is 150rpm, and the stirring time is 2h. 2h, continue to invert at 800rpm for 40min, and make a pretreatment finishing agent after stirring.

[0046] Apply the prepared pretreat...

Embodiment 3

[0053] Preparation of pretreatment finishing agent for filter material opening:

[0054] (1) 50 parts by weight of polyethylene glycol (average molecular weight is 400), 20 parts by weight of polytetrafluoroethylene emulsion with a solid content of 60%, 15 parts by weight of simethicone emulsion, 6 parts by weight of dioctadecyl di Methyl quaternary ammonium salt, 1 weight part of potassium monododecyl phosphate, and 130 parts by weight of deionized water are mixed; through polyethylene glycol (average molecular weight is 400) to reduce the damage of carding machine clothing to fibers in the opening process , Dimethicone oil, dioctadecyl dimethyl quaternary ammonium salt and potassium monododecyl phosphate make the filter material fluffy and soft;

[0055] (2) Stir at 80°C. Stirring method: first rotate forward, the speed of forward rotation is 150rpm, and the stirring time is 2h. 2h, continue to invert at 800rpm for 40min, and make a pretreatment finishing agent after stirri...

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Abstract

The invention discloses a pretreatment finishing agent for opening a filter material, and belongs to the technical field of textile additives. The pretreatment finishing agent is mainly prepared fromthe following raw materials in parts by weight: 40-60 parts of polyethylene glycol, 15-25 parts of a polytetrafluoroethylene emulsion, 12-20 parts of a dimethyl silicone oil emulsion, 5-8 parts of dioctadecyl dimethyl quaternary ammonium salt, 0.5-1.5 parts of potassium dodecyl phosphate and 60-130 parts of deionized water. The invention further provides application of the pretreatment finishing agent for opening the filter material in the opening of the filter material. The pretreatment finishing agent has the beneficial effects that the force required for a base fabric to be pulled from thefilter material can be reduced, the friction coefficients between fibers as well as between the fibers and metal are reduced, the subsequent fiber carding increases is facilitated, the length of a fiber body is increased, and the damage to the fibers is reduced.

Description

technical field [0001] The invention relates to the technical field of textile additives, in particular to a pretreatment finishing agent for opening filter materials and an application thereof. Background technique [0002] At present, the bag filter has been widely used in coal-fired power plants, cement plants, waste incineration plants and other industries. However, due to the large difference in domestic fuels and harsh working conditions, the actual service life of the filter bag is about 3 years, which means A large amount of polyester finished filter materials will be replaced every year. Reasonable recycling of polyester finished filter materials can save a lot of new fibers and is conducive to environmental protection. [0003] At present, the recycling methods of waste filter materials mainly include thermal energy incineration power generation method, mechanical opening method, chemical degradation method and so on. Among them, the waste filter material is made ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/165D06M13/463D06M13/292D06M15/256D06M15/643D06B3/10D01G11/04D06M101/32D06M101/30
CPCD06M13/165D06M13/463D06M13/292D06M15/256D06M15/643D06B3/10D01G11/04D06M2101/32D06M2101/30D06M2200/40Y02W30/66
Inventor 古俊飞孙慧敏周冠辰梁燕
Owner ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
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