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Glass fiber air filter paper repeatedly cleaned and preparation method of glass fiber air filter paper

A technology of air filter paper and glass fiber, which is applied in the direction of filter paper, synthetic cellulose/non-cellulose material pulp/paper, filtration and separation, etc. It can solve the problems of composition and preparation process influence, inconvenient cleaning and recycling, etc., to eliminate moisture and Oil drop, guarantee repeated washing and use, high mesh effect

Active Publication Date: 2014-12-17
CHONGQING ZAISHENG TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary glass fiber filter materials are affected by the composition and preparation process, and are not easy to clean and recycle; therefore, it is necessary to develop a glass fiber air filter paper for repeated cleaning.

Method used

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  • Glass fiber air filter paper repeatedly cleaned and preparation method of glass fiber air filter paper

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Experimental program
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Effect test

Embodiment 1

[0033] The present embodiment prepares the method for repeatedly cleaning glass fiber air filter paper, comprises the following steps:

[0034] 1), dispersion pulping: take 30 parts of non-alkali glass fiber cotton with an average diameter of 5mm, 60 parts of non-alkali glass fiber with a diameter of 0.6um, water and sulfuric acid into the beater for beating and dispersion, and control the addition of water and sulfuric acid , so that the slurry mass concentration is 2.2%, and the pH is 3.5;

[0035] 2), forming: dilute the slurry in step 1) to a mass concentration of 0.2%, remove the slag, and send it to an inclined wire former for wet forming to obtain wet paper;

[0036] 3), sizing: sizing the surface of the wet paper obtained in step 2), the sizing material includes acrylic resin, macromolecular fluorocarbon compound, surfactant and crosslinking agent;

[0037] 4), suction dehydration: use vacuum suction tank to carry out suction dehydration to the wet paper after step 3)...

Embodiment 2

[0046] The present embodiment prepares the method for repeatedly cleaning glass fiber air filter paper, comprises the following steps:

[0047] 1), dispersion pulping: take 42 parts of non-alkali glass fiber cotton with a diameter of 3.7mm, 68 parts of non-alkali glass fiber with a diameter of 0.45um, water and sulfuric acid into a beater for beating and dispersion, and control the amount of water and sulfuric acid added , so that the mass concentration of the slurry is 2.5%, and the pH is 3.2;

[0048] 2), forming: dilute the slurry in step 1) to a mass concentration of 0.3%, remove the slag, and send it to an inclined wire former for wet forming to obtain wet paper;

[0049] 3), sizing: sizing the surface of the wet paper obtained in step 2), the sizing material includes acrylic resin, macromolecular fluorocarbon compound, surfactant and crosslinking agent;

[0050] 4), suction dehydration: use vacuum suction tank to carry out suction dehydration to the wet paper after step 3...

Embodiment 3

[0059] The present embodiment prepares the method for repeatedly cleaning glass fiber air filter paper, comprises the following steps:

[0060] 1) Dispersion pulping: take 28 parts of non-alkali glass fiber cotton with a diameter of 5.8mm, 57 parts of non-alkali glass fiber with a diameter of 0.78um, water and sulfuric acid and add them to the beater for beating and dispersion, and control the addition of water and sulfuric acid , so that the mass concentration of the slurry is 2%, and the pH is 4.0;

[0061] 2) Forming: Dilute the slurry in step 1) to a mass concentration of 0.12%, remove slag, and send it to an inclined wire former for wet forming to obtain wet paper;

[0062] 3), sizing: sizing the surface of the wet paper obtained in step 2), the sizing material includes acrylic resin, macromolecular fluorocarbon compound, surfactant and crosslinking agent;

[0063] 4), suction dehydration: use vacuum suction tank to carry out suction dehydration to the wet paper after st...

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Abstract

The invention discloses glass fiber air filter paper which can be repeatedly cleaned. The glass fiber air filter paper comprises glass fibers and bonding glue stock, wherein the glass fibers are prepared by mixing 25-45 parts by mass of alkali-free glass fiber cotton with the diameter of 3.5-6.0 microns and 55-75 parts by mass of alkali-free glass fibers with the diameter of 0.4-0.8 micron; the bonding glue stock comprises acrylic resin, macromolecular fluorocarbon, a surfactant and a cross-linking agent; the dry weight of the bonding glue stock accounts for 1-3 percent of the total weight of the glass fiber air filter paper. A method for preparing the glass fiber air filter paper provided by the invention comprises the following steps: dispersing and pulping; conveying pulp to a former for forming, applying glue to the surface of wet paper, and performing suction and dehydration; performing primary drying on the wet paper by an infrared drying device; and finally, drying the wet paper at the temperature of 100-200 DEG C, thereby obtaining the glass fiber air filter paper. According to the invention, the water resistance of the air filter paper can be obviously improved under the condition that other performance of the air filter paper is not influenced, and the air filter paper can be repeatedly used after being cleaned.

Description

technical field [0001] The invention belongs to the field of gaseous fluid filtration, relates to glass fiber-based air filter paper, in particular to a glass fiber air filter paper which can be washed repeatedly and a method for preparing the filter paper. Background technique [0002] Glass fiber air filter paper has the advantages of high filtration efficiency and good chemical stability, and is widely used in the fields of integrated circuits, medicine and health. In the field of integrated circuits, the line width of integrated circuits directly depends on the cleanliness of the production environment, and to meet the high cleanliness required in the production environment of integrated circuits, glass fiber filter paper is the only choice. In the pharmaceutical field, relevant enterprises must pass GMP certification, and GMP also has high requirements for the cleanliness level of the production workshop of the enterprise. At present, the corresponding cleanliness level...

Claims

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Application Information

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IPC IPC(8): D21H13/40D21F11/14D21H27/08
Inventor 秦大江郭茂
Owner CHONGQING ZAISHENG TECH CORP
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