Unlock instant, AI-driven research and patent intelligence for your innovation.

Ultralow-resistance melt-blown non-woven fabric for protective mask and preparation method of ultralow-resistance melt-blown non-woven fabric

A melt-blown non-woven fabric, ultra-low technology, applied in non-woven fabrics, rayon manufacturing, textiles and papermaking, etc., can solve the problems of high resistance of masks, affecting the work of medical staff, and rapid attenuation of filtration efficiency, and achieves high efficiency. Filtration efficiency, the effect of improving bacterial filtration efficiency and virus filtration efficiency

Active Publication Date: 2021-03-02
东营俊富净化科技有限公司
View PDF11 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]Wearing a medical protective mask, there are common problems of poor breathing and easy condensation of water vapor on the goggles
This is mainly because the front-line medical staff adopt three-level protection. During the 4-6 hours of work, the whole set of equipment prevents the heat generated by the medical staff from dissipating, and the exhaled gas has high temperature and humidity, and the mask resistance is large. The gas cannot be filtered through the mask in time and discharged, and condenses on the goggles to form water mist, which seriously affects the work of medical staff, and wearing it for a long time will easily lead to breathing difficulties for medical staff, and hypoxia can cause cardiovascular and cerebrovascular diseases
[0005] The melt-blown non-woven fabrics of the prior art have the following technical defects: large air resistance, unsatisfactory filtration efficiency, and rapid attenuation of filtration efficiency

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ultralow-resistance melt-blown non-woven fabric for protective mask and preparation method of ultralow-resistance melt-blown non-woven fabric
  • Ultralow-resistance melt-blown non-woven fabric for protective mask and preparation method of ultralow-resistance melt-blown non-woven fabric
  • Ultralow-resistance melt-blown non-woven fabric for protective mask and preparation method of ultralow-resistance melt-blown non-woven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Embodiment 1 A kind of preparation method of ultra-low resistance melt-blown non-woven fabric for protective mask

[0060] A preparation method for an ultra-low-resistance melt-blown non-woven fabric for a protective mask, comprising the following steps:

[0061] Step 1, preparation modifier

[0062] Modifier raw materials sodium alginate, houttuynia cordata extract, astragalus polysaccharide, nano-activated carbon particles, the mass ratio is 2:0.45:0.2:1;

[0063] Described sodium alginate: viscosity is 118-120map·s, fineness is 8000-8500 mesh, calcium content≤0.3%;

[0064] The Houttuynia cordata extract: the Houttuyniatin sodium content is 3%, and the fineness is 7800-8000 mesh;

[0065] Described astragalus polysaccharide: active ingredient content 70%;

[0066] Described nano activated carbon particle: is the coconut shell nano activated carbon particle, and the diameter of particle is 600-700nm.

[0067] Dissolve Houttuynia cordata extract and Astragalus poly...

Embodiment 2

[0086] Example 2 Analytical experiment of the water vapor pressure ratio on both sides of the fiber in the fiber cooling step

[0087] Adopt the method for embodiment 1 to prepare non-woven fabric, only change the water vapor pressure ratio on both sides of fiber in step 4 fiber cooling, carry out embodiment 2-5; See table 1 for details:

[0088] Table 1

[0089]

[0090] After testing, the prepared product technical index results are shown in Table 2;

[0091] Table 2

[0092]

[0093] It can be seen from the test results that Example 3 is a preferred example, and the water vapor pressure ratio on both sides of the fiber in step 4 of fiber cooling is preferably 1:1.5.

Embodiment 6

[0094] Example 6 Water-vapor pressure ratio analysis experiment on both sides of the fiber in the fiber cooling step

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
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
iodine adsorption valueaaaaaaaaaa
wind resistanceaaaaaaaaaa
Login to View More

Abstract

The invention provides a preparation method of ultralow-resistance melt-blown non-woven fabric for a protective mask. The preparation method comprises the steps of preparing a modifier, forming fibers, cooling the fibers, forming a net and adding static electricity. The modifier is prepared from the following raw materials of sodium alginate, herba houttuyniae extract, astragalus polysaccharide and nano activated carbon particles. According to the preparation method of the melt-blown non-woven fabric, the air resistance of the melt-blown non-woven fabric is remarkably reduced, the air permeability of the melt-blown non-woven fabric is improved, and the particulate matter filtering efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of non-woven fabrics, and in particular relates to an ultra-low-resistance melt-blown non-woven fabric for protective masks and a preparation method thereof. Background technique [0002] Medical protective masks refer to self-priming filter dustproof medical protective masks that can filter particles in the air and block droplets, blood, body fluids, secretions, etc. This is a mask that can prevent infection from airborne infectious agents with a diameter of ≤5 μmg or close (≤1m) contact with droplet-borne diseases. The use of medical masks includes tightness testing, training, selection of models, medical treatment and maintenance. [0003] The medical protective mask is composed of a mask body and a tension belt. The mask body is divided into three layers: inner, middle and outer. It is a layer of non-woven fabric or ultra-thin polypropylene melt-blown material. [0004] Wearing a medical protective ma...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/56D04H1/544D01F6/46D01F1/10D01D5/253D01D5/23D06M10/00
CPCD04H1/56D04H1/544D01F6/46D01F1/10D01D5/253D01D5/23D06M10/00
Inventor 黄文胜谢国东刘雨佳张卫东范小杰张伦
Owner 东营俊富净化科技有限公司