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DE type air purification filter material and method for processing the same

A filter material and air purification technology, applied in chemical instruments and methods, filtration separation, separation methods, etc., can solve the problems of unsatisfactory structural stability, limited application of filter materials, intolerant of moisture, etc. Dust effect, good curling effect

Active Publication Date: 2008-07-16
丹东天皓净化材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vinylon water-soluble silk of this filter material is easy to produce wet-melted scab hard flakes after wet sintering and drying, and the structural stability is not ideal enough. During use, the scab hard flakes are weathered to form powder, causing secondary pollution, and It is not resistant to moisture and can only be used for medium-efficiency gas filtration and purification, so the application of DV filter materials is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Raw material ratio:

[0010] Bottom layer: hollow polyester fiber (6.6dtex×60mm): polyester staple fiber (6.6dtex×65mm): ES fiber (4.44dtex×51mm) = 2:4:4

[0011] Surface layer: hollow polyester fiber (14.44dtex×64mm): polyester staple fiber (38.85dtex×65mm): ES fiber (4.44dtex×51mm) = 4:3:3

[0012] crafting process:

[0013] a. Mix and open, and open with an opener;

[0014] b. Quantitative feeding, feeding carding machine with quantitative feeding machine;

[0015] e. Carding auxiliary net; the auxiliary net is placed on the conveyor by the carding machine;

[0016] d. Heat melting, heating with hot air in a tunnel drying box, and heat melting at 160-200°C for 5-10 minutes:

[0017] e. Cooling roll shaping, the hot-melt-bonded filter material is cooled and shaped to ensure that the shape of the product is fixed. The temperature of the cooling roll is 5-20 ° C, and the cooling roll is cooled by water circulation;

[0018] f. Hot rolling and ironing, the filter ma...

Embodiment 2

[0023] Raw material ratio:

[0024] Bottom layer: hollow polyester fiber (6.6dtex×60mm): polyester staple fiber (6.6dtex×65mm): ES fiber (4.44dtex×51mm) = 1:2:7

[0025] Surface layer: hollow polyester fiber (14.44dtex×64mm): polyester staple fiber (6.6dtex×65mm): ES fiber (4.44dtex×51mm) = 2:4:4

[0026] The process is as described above.

[0027] The filter material produced by this ratio can achieve efficiency G4 (counting method), that is, particle size ≥ 5μm, efficiency ≥ 20%, initial resistance ≤ 50pa, dust holding capacity ≥ 800g / m 2 .

Embodiment 3

[0029] Raw material ratio:

[0030] Bottom layer: hollow polyester fiber (3.33dtex×60m): polyester staple fiber (2.22dtex×51mm): ES fiber (4.44dtex×51mm) = 1:1:8

[0031] Middle layer: hollow polyester fiber (3.33dtex×60mm): polyester staple fiber (2.22dtex×51mm): ES fiber (4.44dtex×51mm) = 2:4:4

[0032] Surface layer: hollow polyester fiber (3.33dtex×60mm): polyester staple fiber (2.78dtex×65mm): ES fiber (4.44dtex×51mm) = 3:2:5

[0033] The process is as described above.

[0034] The filter material produced by this ratio can reach the efficiency GS (counting method), that is, the particle size is ≥1.0μm, the efficiency is ≥20%, the initial resistance is ≤80pa, and the dust holding capacity is ≥900g / m 2 .

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Abstract

The invention adopts hollow polyester fiber, polyester short fiber and ES fiber according to mixture ratio of 1-4:1-4:2-8, including the steps of loosening-> quantitative feeding-> hot melting->cold roll forming->hot rolling->air cooling->trim cutting. The fiber of the invention is conglutinated after hot melting treatment; therefore, fiber pad has good toughness and uniform density and stable structure; the produced filtering material has large pore space, good loading capacity which is difficult to be deformed with small resistance and large dust holding performance and good filtering effect.

Description

technical field [0001] The present invention relates to air purification filter material. In particular, it is a material with dust filtering function formed by thermal fusion of hollow polyester fiber, polyester staple fiber, and ES fiber (4080 double-film double-group low-melting point polyester fiber). Background technique [0002] With the development of society and economy, the manufacturing industry has higher and higher requirements for the environment and air purification, and the requirements for various performance indicators of air purification materials are also higher and higher. Among the existing air filtration and purification materials, there are filter cottons made of various fiber materials, among which fiber filter cotton materials made of polyester fibers of different deniers and vinylon water-soluble silk are the main ones, referred to as DV series filter materials. This kind of filter material can be adjusted according to the melting degree of vinylon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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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