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Non-woven fabric, preparation method thereof, filter screen and air purifier

A technology of non-woven fabric and filter net, applied in the field of air purification, can solve the problems of air purification to be improved, complex production process, peculiar smell and so on

Pending Publication Date: 2022-05-10
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the setting method of loading catalyst particles has complicated manufacturing process, cumbersome procedures, long production cycle, high processing cost, and uneven amount of loaded catalyst particles; more importantly, it will also seriously affect the ventilation rate, especially in other When used on an air purifier, the ventilation of the equipment will be low; at the same time, it is also prone to problems such as odor and powder drop after long-term use
[0003] Thereby, the relevant technology of existing air purification still needs to be improved

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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  • Non-woven fabric, preparation method thereof, filter screen and air purifier
  • Non-woven fabric, preparation method thereof, filter screen and air purifier
  • Non-woven fabric, preparation method thereof, filter screen and air purifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The non-woven fabric has a plurality of filaments, the plurality of filaments are arranged in a directional or random arrangement, and the plurality of filaments form a network structure; the plurality of filaments include a matrix and catalyst particles, the catalyst particles are distributed on the substrate, and the catalyst particles At least a portion of is embedded in the matrix, wherein,

[0056] The shape of the cross-section of the substrate is circular, the diameter of the substrate is 12 μm, and the linear density is 8tex;

[0057] The catalyst particles are manganese oxides, spherical in shape, with a particle size of 250nm and a specific surface area of ​​300m 2 / g;

[0058] The weight of the non-woven fabric is 120g / m 2 , the thickness is 0.4mm.

[0059] The non-woven fabric is prepared by melt-spinning 70 parts by weight of polyethylene terephthalate; and 45 parts by weight of the catalyst particles.

[0060] Test the efficiency of this non-woven fabr...

Embodiment 2

[0073] The only difference from Embodiment 1 is that the shape of the cross-section of the base body is circular.

[0074] The efficiency of the non-woven fabric in purifying formaldehyde was tested, and the test result was 89%.

[0075] The air resistance of the non-woven fabric was tested when purifying formaldehyde, and the test result was 1Pa.

[0076] After the non-woven fabric has been used for 6 months, there is no peculiar smell and no powder falling phenomenon.

Embodiment 3

[0078] The only difference from Example 1 is that the diameter of the substrate is 5 μm.

[0079] The efficiency of the non-woven fabric in purifying formaldehyde was tested, and the test result was 93%.

[0080] The air resistance of the non-woven fabric was tested when purifying formaldehyde, and the test result was 4Pa.

[0081] After the non-woven fabric has been used for 6 months, there is no peculiar smell and no powder falling phenomenon.

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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Abstract

The invention provides a non-woven fabric and a preparation method thereof, a filter screen and an air purifier. The non-woven fabric is provided with a plurality of fiber filaments, the fiber filaments are arranged in an oriented mode or randomly, and the fiber filaments form a net-shaped structure. Each fiber yarn comprises a base body and catalyst particles, the catalyst particles are distributed on the base body, and at least one part of the catalyst particles are embedded in the base body. The catalyst particles in the non-woven fabric are good in catalytic effect and high in air purification efficiency, air resistance generated by the non-woven fabric is small when air is purified, and the ventilation quantity cannot be excessively influenced while the air is purified; the problem of powder falling is not easy to occur after long-time use, and peculiar smell is not easy to generate; different shapes can be manufactured according to actual requirements, the manufacturing process is simple, the application range is wide, and industrialization is easy to achieve.

Description

technical field [0001] The invention relates to the technical field of air purification, in particular to a non-woven fabric and a preparation method thereof, a filter screen and an air purifier. Background technique [0002] In the related art, air purifiers using catalysts usually load catalyst particles on the surface of porous media or air-permeable substrates by means of spraying, rolling, soaking, etc. For example, catalyst particles can be loaded on honeycomb substrates, foam sponges, metal Nets or plastic nets, etc.; in addition, there are also ways to load catalyst particles on the surface of components such as air inlets, air ducts, wind wheels, and air outlets where the wind flows. However, the setting method of loading catalyst particles has complicated manufacturing process, cumbersome procedures, long production cycle, high processing cost, and uneven amount of loaded catalyst particles; more importantly, it will also seriously affect the ventilation rate, espe...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/435D04H1/4291D04H1/4318D04H1/4334D04H1/4282D04H1/43D04H3/007D04H3/009D04H3/011D01F1/10B01D53/86B01D53/72B01D46/10
CPCD04H1/435D04H1/4291D04H1/4318D04H1/4334D04H1/4282D04H1/43D04H3/007D04H3/009D04H3/011D01F1/10B01D53/8668B01D46/0027B01D2257/704B01D2259/4508
Inventor 杨杰杨卫星程炳坤张宏莉曹达华
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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