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Fiber filter paper for disposable medical and hygienic products and manufacturing method thereof

A technology for medical hygiene and fiber filtration, applied in filter paper, synthetic cellulose/non-cellulose material pulp/paper, filtration and separation, etc., can solve the problems of paper stiffness, easy breakage, low wet strength, etc., and achieve uniform paper quality. The effect of softness, good dyeability and high tensile strength

Active Publication Date: 2011-04-27
浙江鹏辰造纸研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dry-laid non-woven materials have good air permeability, but most of the synthetic fibers are water-resistant, which not only has poor comfort, but also easily causes skin allergies; all-plant fiber filter paper, due to its low wet strength, is easy to break, and the fibers tend to be damaged. Shedding, commonly known as "hair loss", inhalation affects human health. Although some all-plant fiber materials are treated with dipping and other processes, the wet strength is greatly improved, but the paper is stiff and the comfort is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: Take 25 parts of cotton fiber and throw it into a beater that has added 1000 parts of water. After dispersing for 10 minutes, beat it with a knife, and the degree of beating reaches 25. o For SR, start cutting when the wet weight reaches 25g, and put it in the slurry mixing tank for standby. Add 3000 parts of water to another beater, then add 45 parts of Tencel fiber (0.6dtex×5mm) and 30 parts of ES fiber (1.67dtex×6mm), decompose for 30min, put it into the mixing tank, Add polyacrylamide in an amount of 0.5% of the dry pulp weight, and an appropriate amount of water, and stir evenly to form a slurry with a mass percentage concentration of 0.15%.

[0021] The above slurry is input into the inclined wire paper machine to make quantitative 20g / m 2 filter paper. The dry tensile strength (vertical and horizontal average) of the filter paper is 0.68kN / m, the wet tensile strength (vertical and horizontal average) is 0.45kN / m, and the air permeability is 2800L / m ...

Embodiment 2

[0023] Example 2: Get 30 parts of hemp fiber and throw it into a beater that has added 1200 parts of water. After dispersing for 20 minutes, beat it with a knife, and the degree of beating reaches 65. o For SR, start the knife when the wet weight reaches 10g, and put it in the slurry mixing tank for standby. Add 2800 parts of water to another beater, add 40 parts of viscose fiber (1.0dtex×5mm) and 30 parts of ES fiber (2dtex×6mm), continue to defuse for 30 minutes, put it into the mixing tank, Add polyacrylamide with an amount of 0.8% of the dry pulp weight, and an appropriate amount of water, stir evenly to form a slurry with a mass percentage concentration of 0.6%, and input the above slurry into the inclined wire paper machine to make a quantitative 38g / m 2 filter paper. The dry tensile strength (vertical and horizontal average) of the filter paper is 1.62kN / m, the wet tensile strength (vertical and horizontal average) is 0.92kN / m, and the air permeability is 1800L / m 2 .S...

Embodiment 3

[0024] Example 3: Take 28 parts of hemp fiber and throw it into a beater that has added 1120 parts of water. After dispersing for 10 to 20 minutes, beat it with a knife, and the beating degree reaches 45. o For SR, start the knife when the wet weight reaches 20g, and put it in the slurry mixing tank for standby. Add 2880 parts of water to another beater, add 42 parts of Tencel fiber (1.5dtex×6mm) and 30 parts of ES fiber (1.67dtex×10mm), decompose for 30min, and put it into the mixing tank. Add polyacrylamide with an amount of 0.3% of the dry pulp weight in the mixing tank, and an appropriate amount of water, stir evenly to form a slurry with a mass percentage concentration of 0.18%, and input the above slurry into the inclined wire paper machine to make quantitative 18g / m 2 filter paper. The dry tensile strength (vertical and horizontal average) of the filter paper is 0.52kN / m, the wet tensile strength (vertical and horizontal average) is 0.31kN / m, and the air permeability ...

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Abstract

The invention relates to fiber filter paper for disposable medical and hygienic products and a manufacturing method thereof, and belongs to the technical field of wet-method non-weaving papermaking. The fiber filter paper is prepared from 15 to 45 weight percent of plant fibers, 30 to 75 percent of artificial fibers and 10 to 55 percent of low-melting point chemical fibers which serve as raw materials through a wet-method non-weaving process, wherein the artificial fibers comprise tencel and viscose; the low-melting point chemical fibers comprise poly ethylene (PE) fibers, ethylene vinyl silane (EVOH) fibers, ethylene-propylene side by side (ES) fibers with a skin-core structure and fibers or composite fibers which contain components such as propene polymer (PP), polyamide (PA), polyethylene terephthalate (PET) and the like and have the melting point of between 80 and 160 DEG C. The fiber filter paper for the medical and hygienic products has uniform and soft quality, and high wet-dry strength, hydrophily, dyeing property and printability, is air-permeable and comfortable, can keep skin clean and dry and comfortable, and is non-toxic, tasteless, safe and sanitary, so the fiber filter paper can be used for producing middle and high-grade disposable medical and hygienic products with different colors or printing patterns.

Description

technical field [0001] The invention belongs to the technical field of wet nonwoven papermaking, and in particular relates to a fiber filter paper for disposable medical and sanitary products and a manufacturing method thereof. Background technique [0002] The filter material currently used for the skin-friendly layer of disposable medical and sanitary products usually uses dry-laid non-woven materials or all-plant fiber filter paper. Dry-laid non-woven materials have good air permeability, but most of the synthetic fibers are water-resistant, which not only has poor comfort, but also easily causes skin allergies; all-plant fiber filter paper, due to its low wet strength, is easy to break, and the fibers tend to be damaged. Falling off, commonly known as "hair loss", inhalation affects human health. Although some all-plant fiber materials are treated with dipping and other processes, the wet strength is greatly improved, but the paper is stiff and the comfort is poor. Co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/08D21H13/00D21H15/00
Inventor 陆燕华李荣年张春林汤人望
Owner 浙江鹏辰造纸研究所有限公司
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