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Raw bamboo fiber automobile air conditioner filter element and preparation method thereof

A bamboo fiber, automotive air conditioning technology, applied in filtration separation, separation method, dispersed particle filtration, etc., can solve the problem of not making full use of the filtration performance of each component fiber, uneven transfer and distribution of component fibers, not considering performance differences, etc. problems, to achieve the effect of ensuring independent filtration performance, low equipment requirements, improved uniformity of transfer and distribution

Inactive Publication Date: 2013-05-08
福建建州竹业科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of the above two filter materials does not consider the performance difference of each component fiber of the bamboo fiber filter layer of the filter material, and there are problems of transfer and uneven distribution of the fibers of each component in the production and manufacturing, resulting in the inability to fully utilize the filtration performance of the fibers of each component , the performance stability of the filter material is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The design weight is 210g / m 2 , and is a bamboo fiber car air-conditioning filter element with a "sandwich layer" structure, and the weight of the three layers of thin needle-punched felt is 70g / m 2 , the mass mixing ratio of bamboo fiber / PP fiber is 50 / 50, 70 / 30 and 50 / 50 respectively. The bamboo fibers and PP fibers of each thin needle felt were fed according to the set mass percentage, and were roughly opened respectively. After mixing and fine opening, the oil agent with a mass concentration of 2% was sprayed according to 4% of the mixed fiber mass, and Put it in a closed environment for pretreatment for 8 hours; the pretreated mixed fibers are formed by carding and laying, the speed of the needling machine is 300-400 times / min, and the density of needles is 2000 pieces / m 2 , the temperature of the upper and lower rolls of the hot rolling mill is 170°C, the gauge is 0.5mm, and the grammage is 70g / m 2 Mix ratios are 50 / 50, 70 / 30 and 50 / 50 thin bamboo fiber filter l...

Embodiment 2

[0064] Embodiment 2: other preparation technology is identical with embodiment 1, gram weight 210g / m 2 The original bamboo fiber car air conditioning filter element has a weight of 105g / m 2 It is made of two layers of thin needle felt, and the mass ratio of bamboo fiber / PP fiber is 50 / 50 and 70 / 30 respectively.

[0065] The finished product is tested, the filtration efficiency is ≥62%, and the air flow is 3571.8L / m 2 ·S.

Embodiment 3

[0066] Embodiment 3: other preparation technology is identical with embodiment 1, grammage 300g / m 2 The original bamboo fiber car air conditioning filter element has a weight of 150g / m 2 It is made of two layers of thin needle felt, and the mass ratio of bamboo fiber / PP fiber is 50 / 50 and 70 / 30 respectively.

[0067] The obtained finished product is tested, the filtration efficiency is ≥74%, and the air permeability is 2589.6L / m 2 ·S.

[0068] The structural design of the bamboo fiber automobile air-conditioning filter element of the present invention selects fineness to be 3-5 Tekes, and length is 30-35 millimeter medium-thick bamboo fiber for use, and fineness is 3-7 denier, and length is 30-40 millimeter PP fiber As the raw material of the filter material, the requirements for the production and use of bamboo fiber and PP fiber are reduced, and the raw material cost of the bamboo fiber filter material is reduced. 0.1-0.2g / m made of different quality mixed bamboo / PP thin ...

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Abstract

The invention provides a raw bamboo fiber automobile air conditioner filter element and a preparation method thereof. The filter element is composed of at least two layers of raw bamboo fiber and polypropylene fiber thin needled mats through needling and hot-rolling adhesion; the mass mixing ratios of the raw bamboo fiber to the polypropylene fiber in each thin needled mat are different; the fineness of the raw bamboo fiber is 3-5tex, and the length is 30-35mm; the fineness of the polypropylene fiber is 3-7 deniers, and the length is 30-40mm; and the volume density of each thin needled mat is 0.1-0.2g / cm<3>, and the gram weight is 70-150g / m<2>. Through the invention, the uniform state of transfer and distribution of each component fiber in the thin needled mat can be improved, the independent filtering performance of each thin needled mat is guaranteed, the production cost can be lowered, and the air permeability and filtering efficiency of the filter element are improved.

Description

【Technical field】 [0001] The invention relates to a bamboo fiber automobile air-conditioning filter element and a preparation method thereof. 【Background technique】 [0002] Bamboo fiber is rich in resources and has excellent air permeability, adsorption, antibacterial and other properties, which can effectively improve the filterability of filter materials and the adsorption and inhibition of harmful microorganisms and gases. At present, there is little research on bamboo fiber in the field of filtration, and its development and application in filter materials are greatly restricted. [0003] The invention of existing bamboo fiber filter material adopts acupuncture process to form PP non-woven fabric, polarized melt-blown polypropylene non-woven fabric, composite bamboo fiber filter layer and spunlace non-woven fabric at one time. [0004] For example: the application number is 201110036652.7, and the application date is a Chinese patent on January 30, 2011, which disclose...

Claims

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Application Information

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IPC IPC(8): B01D39/14B01D46/00D04H1/4258D04H1/4291D04H1/4382D04H1/485
Inventor 王春红叶张龙张毅唐模秋白肃跃
Owner 福建建州竹业科技开发有限公司
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