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Method for processing DE type flame-proof filtering cotton

A processing method and filter cotton technology, applied in the field of air filtration and purification materials, can solve the problems of complex process, high production cost, unsatisfactory flame retardant effect, etc., and achieve excellent flame retardant performance, no environmental pollution, and good acid and alkali resistance. sexual effect

Active Publication Date: 2008-07-16
丹东天皓净化材料有限公司
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AI Technical Summary

Problems solved by technology

In the prior art, in order to achieve the flame-retardant effect of the DE filter cotton material, it is processed by adding a certain amount of flame-retardant fiber to the material ratio of the DE-type filter material production process and spraying a flame-retardant agent on the surface. The process is relatively complicated. , the production cost is high, and the flame retardant effect is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] 1. Preparation of flame retardant bath liquid

[0014] Flame retardant: water=(1-1.2): (10-12), flame retardant is the FR-101 type polyester durable flame retardant produced by Qingdao Lianmei Chemical Co., Ltd., adjusted with disodium hydrogen phosphate or NaOH aqueous solution The pH value of the solution is 6.0-6.5;

[0015] 2. Use a two-dipping and two-dipping dipping machine, and the dipping time is 2 minutes to ensure that the material is fully soaked and the flame retardant is fully combined with the material. The bath temperature is 5-25°C, and the dipping rate is 60-70%;

[0016] 3. Dry with hot air at 110-135°C for 12 minutes in a tunnel oven, and then heat-cure at 185-205°C for 12 minutes;

[0017] 4. Input the dried and heat-fixed filter cotton into the cooling rollers, and cool and shape the rollers after cooling. The temperature of the cooling rollers is 50-60°C. Material thickness requirements;

[0018] 5. Then pass the filter cotton under the air-cool...

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PUM

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Abstract

The invention relates to flame-retardant filtration asbestos of DE type, which employs polyester, durable flame retardant to process DE type filtering material with steps of immersing, drying, thermosetting and cooling setting. With high flame retardant effect, good thermal stability, maintenance performance and resistance to acid and alkali; the invention which can keep the excellent flame retardant performance even after being washed contains no harmful elements such as formaldehyde, etc. and causes no pollution to environment.

Description

technical field [0001] The invention relates to an air filter and purification material, especially a filter material formed by heat-melting combination of polyester fiber and ES fiber (4080 double-membrane double-group low-melting point polyester fiber). Background technique [0002] The filter cotton material made of polyester fiber and ES fiber thermal fusion, referred to as DE filter cotton material, can be used in automobile painting production line, paint (room) production line, locomotive body production line and other occasions to filter air dust. In the prior art, in order to achieve the flame-retardant effect of the DE filter cotton material, it is processed by adding a certain amount of flame-retardant fiber to the material ratio of the DE-type filter material production process and spraying a flame-retardant agent on the surface. The process is relatively complicated. , the production cost is high, and the flame retardant effect is not ideal. Contents of the in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): B01D39/16B29C67/04B29C67/20B29L31/14
Inventor 任延国冀艳芹
Owner 丹东天皓净化材料有限公司
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