Base cloth for filtering material and production method of base cloth

A filter material and production method technology, applied in the direction of filtration and separation, separation methods, chemical instruments and methods, etc., can solve the problems of shortened service life of the base cloth, low strength of the base cloth, and reduced service life, so as to reduce the air resistance, reduce the The effect of weight and life extension

Inactive Publication Date: 2016-10-05
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, the middle reinforcement fabric of the filter felt used in the market has a relatively high grammage. Although it meets the requirement of high strength of the overall filter material, while increasing the grammage of the base cloth, under the condition of using the same weight filter material, If the use of filter materials is reduced, the filtration efficiency of the filter material will be reduced, and the air permeability and service life will be reduced.
[0005] For example, Chinese published patent CN101711932A discloses a base cloth for filter material and its production method. The base cloth achieves the high strength requirement of the filter felt by increasing the density of the base cloth, but the high grammage of the base cloth increases the density of the filter material. The cost
Moreover, although the grammage of the base fabric is high, the maximum value of the ratio of the strength of the base fabric to the grammage is still low, indicating that the strength of the base fabric is low, and the service life of the base fabric is shortened

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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  • Base cloth for filtering material and production method of base cloth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Spin PPS staple fibers with a breaking strength of 5.14CN / dtex, use a 4g warp-stop sheet, and use 2 pieces per reed to draw on the hedging machine to obtain a fineness of 531D and a twist of 579T / M The double-ply yarn is used as the warp yarn, and the single yarn with a denier of 332D and a twist of 500T / M is used as the weft yarn, and the above-mentioned PPS yarn is processed once at a temperature of 90°C, a humidity of 80%, and a time of 15 minutes. Heat setting processing, and then weaving the PPS yarn after heat setting processing with plain weave. When weaving, strictly control the warp density to 141 threads / 10cm, the weft density to 48 threads / 10cm, and finally obtain a grammage of 90g / m 2 , The warp direction tensile strength is 1312N / 5cm, the weft direction tensile strength is 344N / 5cm base fabric. See Table 1 for evaluating the physical properties of the base cloth of the present invention.

Embodiment 2

[0035] The PPS short fiber with breaking strength of 4.70CN / dtex is spun, the quality is 6g, and the number of piercings per reed is 3, and the threading machine is carried out to obtain a fineness of 800D and a twist of 600T / M The double-ply yarn is used as the warp yarn, the double-ply yarn with a denier of 332D and a twist of 500T / M is used as a weft yarn, and the above-mentioned PPS yarn is prepared at a temperature of 80°C, a humidity of 85%, and a time of 10min. 2 times of heat setting processing, and then the PPS yarn after the heat setting processing is woven with a plain weave. When weaving, the warp density is strictly controlled to be 75 threads / 10cm, and the weft density is 50 threads / 10cm. Weight is 70g / m 2 , The warp tensile strength is 1150N / 5cm, the weft tensile strength is 256N / 5cm base fabric. See Table 1 for evaluating the physical properties of the base cloth of the present invention.

Embodiment 3

[0037] The PPS short fiber with breaking strength of 5.20CN / dtex is spun, the quality is 7g, and the number of piercings per reed is 4, and the threading machine is carried out to obtain a fineness of 531D and a twist of 579T / M The double-ply yarn is used as the warp yarn, and the single yarn with a denier of 800D and a twist of 300T / M is used as the weft yarn, and the above-mentioned PPS yarn is carried out at a temperature of 95°C, a humidity of 80%, and a time of 15min. Carry out heat setting processing, and then weave the PPS yarn after heat setting processing with plain weave. When weaving, strictly control the warp density to 110 threads / 10cm, and the weft density to 36 threads / 10cm, and finally obtain the grammage 82g / m 2 , The warp direction tensile strength is 1223N / 5cm, the weft direction tensile strength is 443N / 5cm base fabric. See Table 1 for evaluating the physical properties of the base cloth of the present invention.

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Abstract

The invention discloses a base cloth for a filtering material and a production method of the base cloth. The gram weight of the base cloth ranges from 60 g / m<2> to 95 g / m<2>, the warp tensile strength of the base cloth ranges from 1,000 N / 5 cm to 1,400 N / 5 cm, the weft tensile strength of the base cloth ranges from 250 N / 5 cm to 500 N / 5 cm, the specific value of the warp tensile strength to the gram weight of the base cloth is below 18.0 N.m<2> / 5 cm.g, and the specific value of the weft tensile strength to the gram weight of the base cloth is below 6.3 N.m<2> / 5 cm.g. According to the base cloth for the filtering material and the production method of the base cloth, by means of a special processing technology, the gram weight of the base cloth is reduced on the condition that the strength needed by the filtering material made of the base cloth is guaranteed, and therefore the making cost of the filtering material is reduced; meanwhile, the air permeability resistance of the filtering material is reduced, and the service life of the filtering material is prolonged.

Description

technical field [0001] The invention relates to a base cloth for filter material and a production method thereof. Background technique [0002] In recent years, with the rapid development of industry, industrial pollution has become increasingly serious, which has endangered the natural environment and people's health. Flue gas dust removal is an important part of pollution control, and bag dust removal is an effective method for flue gas control. [0003] The development of the bag filter has also promoted the progress of the filter material, and the requirements for the performance of the filter material, including filtration efficiency, filter material pressure loss, use cost, service life, etc. are also increasing, which will also lead to the further development of filter material processing technology , and the main factors affecting the performance of the filter material are the material selection of the filter material, the structural design of the filter material, t...

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): B01D39/08
Inventor 张鹏霞张磊蔡文杰
Owner TORAY FIBER RES INST(CHINA) CO LTD
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