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Filter material for filter element, preparation method and application of filter material

A filter material and filter element technology, which is applied in the field of filter element filter material and its production and application, can solve the problems of low carbon, three wastes, complex process, etc., and achieve good flame retardancy, simple and environmentally friendly production process, and high capture efficiency effect

Inactive Publication Date: 2013-05-29
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, chemically bonded non-woven fabrics are widely used in the market. Although these filter materials also have the characteristics of particle capture, the problems of three wastes and high energy consumption caused by chemical bonding and reinforcement have not been completely solved. Residual chemicals have adverse side effects, such as irritation to the skin, so it is necessary to seek more environmentally friendly products that are more in line with the concept of low-carbon environmental protection
[0003] For example, the publication number is CN1232406A, which discloses a patent for a flame-retardant filter filter material and an air filter device using the filter material. Supporting material, although the non-woven fabric used as the supporting material has flame-retardant properties, but because the production process of the non-woven fabric as the supporting material is the spunbond method of long fibers, the acupuncture method of short fibers, the water spray method, and the stitching method , the process is complicated, the energy consumption is high, and it does not conform to the concept of low carbon

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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  • Filter material for filter element, preparation method and application of filter material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 40% by weight of fineness of 30dtex coarse sheath-core composite fiber, 40% by weight of fineness of 10dtex flame-retardant fiber and 20% by weight of fineness of 30dtex ordinary polyester fiber of coarse fineness are used for feeding, after opening, carding Cotton and cross-lapping form a composite fiber web layer, wherein the skin component in the sheath-core composite fiber is a copolyester fiber with a melting point of 110 ° C, and the core component is a common polyester fiber. The fiber web layer obtained above is 7 m / min Speed, thermal bonding through a 1.5-meter hot air box at a temperature of 180 ° C, and then at a pressure of 75 kg / cm 2The hot metal rolls with the upper and lower temperatures of 150°C are used for hot pressing and reinforcement, and the grammage is 80g / m 2 The heat-bonded non-woven fabric of the above-mentioned non-woven fabric is used to make the filter material for the filter core of the present invention. The physical properties of the obt...

Embodiment 2

[0037] With 25% by weight of coarse fiber of 12 dtex, 40% by weight of flame retardant fiber of 8 dtex, 20% by weight of coarse polyester fiber of 15 dtex and 15% by weight of fiber of 5 dtex Feed the ordinary polyester fiber with a fineness of fineness, and form a composite fiber network layer through opening, carding, and cross-lapping. The skin component of the sheath-core composite fiber is copolyester fiber with a melting point of 110°C, and the core component is ordinary polyester. Fiber, the above-mentioned obtained fiber web layer is thermally bonded by a 2-meter hot air box with a temperature of 190 °C at a speed of 9 m / min, and then heated at a pressure of 80 kg / cm 2 The hot metal rolls with the upper and lower temperatures of 155°C are used for hot pressing and reinforcement, and the grammage is 85g / m 2 The heat-bonded non-woven fabric of the above-mentioned non-woven fabric is used to make the filter material for the filter core of the present invention. The physi...

Embodiment 3

[0039] 50% by weight of thick sheath-core composite fiber with a fineness of 20dtex, 20% by weight of finer sheath-core composite fiber with a fineness of 10dtex, 10% by weight of flame-retardant fiber with a fineness of 2dtex, and 5% by weight of a finer fiber with a fineness of 20dtex 15% by weight of ordinary polyester fibers with a coarse fineness of 1dtex and 15% by weight of ordinary polyester fibers with a fine fineness of 1dtex are fed, and a composite fiber web layer is formed through opening, carding, and cross-lapping, wherein the sheath composition of the skin-core composite fiber is The copolyester fiber with a melting point of 110°C and the core component is ordinary polyester fiber. The fiber web layer obtained above is thermally bonded by a 3-meter hot air box with a temperature of 200°C at a speed of 10 m / min. 85kg / cm 2 The hot metal rolls with the upper and lower temperatures of 160°C are used for hot pressing and reinforcement, and the grammage is 90g / m 2 T...

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Abstract

The invention discloses a filter material for a filter element, a preparation method and application of the filter material. The filter material comprises non-woven fabric. The non-woven fabric at least comprises, by weight, above 20% of skin-core complex fibers and above 10% of fire resistant fibers. The non-woven fabric is obtained by heat bonding. The preparation process of the filter material is simple and environmental-friendly. The filter material has not only good fire resistance, but also good strength, good air permeability and long service life. The filter material can be widely applied to the field of air filtration.

Description

technical field [0001] The invention relates to a filter material for a filter element, a production method and application thereof. Background technique [0002] With the rapid development of modern industry and the internationalization of the product market, the requirements for non-woven fabrics for filter materials are getting higher and higher. To be competitive in the market, non-woven processes with special functions and low-carbon environmental protection are required. At present, chemically bonded non-woven fabrics are widely used in the market. Although these filter materials also have the characteristics of particle capture, the problems of three wastes and high energy consumption caused by chemical bonding and reinforcement have not been completely solved. Residual chemicals have adverse side effects, such as irritation to the skin, so it is necessary to seek more environmental protection requirements, and more in line with the concept of low-carbon environmental...

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): B01D39/08B01D46/00
Inventor 赵庆成纪舜卿蔡文杰
Owner TORAY FIBER RES INST(CHINA) CO LTD
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