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Composite filter element and preparation method thereof

A filter, a pair of technology, applied in the field of materials, can solve the problems affecting the service life of activated carbon adsorption function products, the adhesion fastness of activated carbon particles is easy to be insufficient, the adsorption efficiency and filtration effect are reduced, etc. Excellent performance and long adsorption time

Active Publication Date: 2016-05-18
ZHANGJIAGANG JUNMA NON WOVEN CO LTD
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Problems solved by technology

There is also a common fashion filter mask on the market, which is made of traditional cotton mask and melt-blown cloth brushed with carbon powder as the filter core layer. This product is beautiful and practical, but the air permeability is not good. In addition, because it does not use activated carbon The particles are carbon powder, so the adsorption efficiency and filtering effect will decrease significantly after a period of use
[0004] The activated carbon particles and melt-blown cloth composite filter materials processed in the market now use hot melt adhesive to a certain extent to play a certain role in fixing, but the use of hot melt powder may affect the adsorption function of activated carbon and the service life of the product.
The adhesive fastness of activated carbon particles with improper use of additives is likely to be insufficient and it is easy to age the non-woven fabric, resulting in poor performance

Method used

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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  • Composite filter element and preparation method thereof
  • Composite filter element and preparation method thereof

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Embodiment Construction

[0021] The composite filter disc comprises an upper layer of non-woven fabric 1, a lower layer of non-woven fabric 2 and a middle layer of activated carbon particles 3; 2 The average fineness of the fiber is 1-5μm, and the weight is 8-25g / m 2 ; The activated carbon particles in the middle layer 3 are irregular particles and the weight accounts for 95%-97% of the total weight of the material.

[0022] See figure 1 and figure 2 To prepare a raw material roll of melt-blown cloth with a gram weight of 10g, first spread the lower layer of non-woven fabric 2 on the raw material feeding plate 4, and evenly spread the middle layer of activated carbon particles 3 with a diameter of 1mm on the raw material feeding plate through the vibrating screen 5. The input plate 4 is covered with the upper layer of non-woven fabric 1, and the preparation is rolled by a pair of heatable rubber rollers 6 at 55 degrees Celsius, and then transported to the material output plate 8 by a pair of rubber...

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Abstract

The invention relates to a composite filter element. The filter element comprises upper-layer non-woven fabric, lower-layer non-woven fabric, and middle-layer activated carbon particles. The particle size of the middle-layer activated carbon particles is 1-3mm. The fiber average fineness of the upper-layer non-woven fabric and the lower-layer non-woven fabric is 1-5[mu]m, and the gram weight of the fabric is 8-25g / m<2>. The composite filter element has excellent absorption performance; product structure is intelligently designed; and production is easy. Carbon particle diameter is relatively large, such that toxic gas absorption efficiency of the filter element is high, and absorption time is long. The invention also provides a preparation method of the composite filter element.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a composite filter and a preparation method thereof. Background technique [0002] As air pollution continues to increase, air filter materials have gradually become a necessity in people's lives. In recent years, masks such as anti-smog and anti-PM2.5 masks have been selling well in the market, and the growth momentum has not diminished in the slightest. However, this year's 315 party revealed that the activated carbon particle masks currently on the market are far less effective in filtration and adsorption than reported by the product due to processing defects. Even more than half of the anti-haze mask products on the market are unqualified after inspection product. [0003] The long carbon masks that are common in the market now are made of SMS non-woven fabric as the covering material, and the middle is made of melt-blown material brushed with carbon powder as the filte...

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): B01D39/14B01D46/00B01D53/02B32B9/04B32B37/02
Inventor 张瑜顾云翔彭鹏罗腾
Owner ZHANGJIAGANG JUNMA NON WOVEN CO LTD
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