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Paper-based filter material base paper for replacing mask melt-blown cloth and preparation method of paper-based filter material base paper

A filter material and paper-based technology, applied in paper coating, filtration separation, membrane filter, etc., can solve the problem of large pore size of plant fiber and polylactic acid fiber, fast decay of electret charge of polylactic acid fiber, polypropylene melt blown To solve the problems of low cloth output, etc., to achieve the effect of abundant raw materials, uniform filtration efficiency, and improved electrostatic adsorption capacity

Active Publication Date: 2020-09-22
QILU UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The present invention aims at the problems of low output, high cost, environmental pollution and biological hazards of the above-mentioned polypropylene melt-blown cloth, and provides a simple and low-cost manufacturing method for paper-based filter material base paper that replaces mask melt-blown cloth. Plant fiber is used for the first time And polylactic acid fiber is used as a filter material to replace polypropylene melt-blown cloth. Through nanofiber and anion powder coating spray technology, the problem of large pore size of plant fiber and polylactic acid fiber and fast decay of electret charge of polylactic acid fiber is solved.

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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  • Paper-based filter material base paper for replacing mask melt-blown cloth and preparation method of paper-based filter material base paper
  • Paper-based filter material base paper for replacing mask melt-blown cloth and preparation method of paper-based filter material base paper
  • Paper-based filter material base paper for replacing mask melt-blown cloth and preparation method of paper-based filter material base paper

Examples

Experimental program
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Effect test

Embodiment 1

[0072] A kind of paper-based filter material raw paper that replaces mask melt-blown cloth and preparation method thereof, the steps are as follows:

[0073] (1) Mix the polylactic acid fiber accounting for 30% of the total fiber mass ratio with the softwood fiber with a beating degree of 30°SR accounting for 70% of the total fiber mass ratio, and add 0.5% of the total fiber mass as a papermaking wet strength agent polyamide Ammonia epichlorohydrin, and disperse evenly, make slurry;

[0074] (2) After diluting the slurry prepared in step (1) to a concentration of 0.025%, the paper machine is loaded, and the paper is formed by inclined wire forming to obtain a wet paper web;

[0075] (3) to the wet paper web surface that step (2) makes the negative ion fiber coating that above-mentioned making is sprayed, sprays upper surface, and spray amount is 3.5g / m in terms of solids 2 , and then according to the drying process of 30g / ㎡ sanitary napkin base paper and the subsequent paper-...

Embodiment 2

[0080] A kind of paper-based filter material raw paper that replaces mask melt-blown cloth and preparation method thereof, the steps are as follows:

[0081] (1) The polylactic acid fiber accounting for 40% of the total fiber mass ratio and the coniferous wood fiber with a beating degree of 30°SR accounting for 60% of the total fiber mass ratio are mixed, and 0.5% of the total fiber mass is added. Ammonia epichlorohydrin, and disperse evenly, make slurry;

[0082] (2) After diluting the slurry prepared in step (1) to a concentration of 0.025%, the paper machine is loaded, and the paper is formed by inclined wire forming to obtain a wet paper web;

[0083] (3) spray the negative ion fiber coating that embodiment 1 makes to the wet paper web surface that step (2) makes, spray the upper surface, and the spray amount is 3.5g / m in terms of solids 2 , and then according to the drying process of 30g / ㎡ sanitary napkin base paper and the subsequent paper-making process, the paper-base...

Embodiment 3

[0088]A kind of paper-based filter material raw paper that replaces mask melt-blown cloth and preparation method thereof, the steps are as follows:

[0089] (1) The polylactic acid fiber accounting for 20% of the total fiber mass ratio and the coniferous wood fiber accounting for 80% of the total fiber mass ratio with a beating degree of 30 ° SR are mixed, and 0.5% of the total fiber mass is added. Ammonia epichlorohydrin, and disperse evenly, make slurry;

[0090] (2) After diluting the slurry prepared in step (1) to a concentration of 0.025%, the paper machine is loaded, and the paper is formed by inclined wire forming to obtain a wet paper web;

[0091] (3) spray the negative ion fiber coating that embodiment 1 makes to the wet paper web surface that step (2) makes, spray the upper surface, and the spray amount is 3.5g / m in terms of solids 2 , and then according to the drying process of 30g / ㎡ sanitary napkin base paper and the subsequent paper-making process, the paper-bas...

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Abstract

The invention relates to paper-based filter material base paper for replacing mask melt-blown cloth and a preparation method of the paper-based filter material base paper. The paper-based filter material base paper for replacing the mask melt-blown cloth is characterized in that the physical properties are as follows: the quantification is 20-40 g / m<2>, and the tensile strength is 2 KN / m-4 KN / m; the wet strength is 15%-30%; the bulk is 1.3 to 1.8 m<3> / g; the average pore diameter is 30 [mu]m to 55 [mu]m; the respiratory resistance ranges from 30 Pa to 170 Pa; the surface potential after electret is 300 V-600 V, and the particulate matter filtering efficiency is 50%-80%. Plant fibers and polylactic acid fibers are used as filter materials for replacing polypropylene melt-blown cloth for thefirst time, and an anion fiber coating containing the nanofibers is sprayed to solve the problems that after plant fibers and polylactic acid fibers form paper, gaps are large, and the filter efficiency is low.

Description

technical field [0001] The present invention relates to a kind of paper-based filter material base paper which replaces mask melt-blown cloth and its preparation method, especially a kind of breathing resistance which is made of plant fiber and polylactic acid fiber by adopting nanofiber and negative ion powder coating spraying technology The invention discloses a method for preparing a paper-based filter material base paper that is low in filtration efficiency, high in electret surface potential, environmentally friendly and degradable, and low in production cost, and belongs to the technical field of papermaking. Background technique [0002] my country is a large industrial production country. With the improvement of people's living standards in our country, people's requirements for their own health and environment are getting higher and higher. However, my country is a large developing country, and it is in the period of accelerated industrialization. The output and con...

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): D21H27/08D21H11/00D21H13/30D21H17/00D21H17/25D21H17/55D21H19/12D21H21/20D21F11/02B01D39/14
CPCB01D39/14B01D2239/0216B01D2239/0435B01D2239/10D21F11/02D21H11/00D21H13/30D21H17/00D21H17/25D21H17/55D21H19/12D21H21/20D21H27/08
Inventor 赵传山陈立栋李辉李杰华丁其军李霞
Owner QILU UNIV OF TECH
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