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Multi-layer melt-blown non-woven fabric and preparation method thereof

A melt-blown non-woven fabric and melt-blown technology, which is applied in the direction of melt-spinning, chemical instruments and methods, textile/flexible product manufacturing, etc., can solve problems such as single function and difficulty in meeting the requirements of high-quality polymer melt-blown, and achieve Good filtering effect, good spinning effect, and simplified structure

Inactive Publication Date: 2021-09-24
宿迁正峰包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current melt-blown non-woven fabrics, especially the melt-blown non-woven fabrics used to make masks, have a single function and cannot meet the current use requirements. In addition, the current melt-blown equipment, especially the melt-blown die head, has a relatively traditional structure, which is difficult to meet high Meltblown Requirements for Quality Polymers

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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  • Multi-layer melt-blown non-woven fabric and preparation method thereof
  • Multi-layer melt-blown non-woven fabric and preparation method thereof
  • Multi-layer melt-blown non-woven fabric and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] refer to figure 1 , in this embodiment, a multi-layer melt-blown non-woven fabric is proposed, the multi-layer melt-blown non-woven fabric is composed of an antibacterial outer layer 1, a filter interlayer 2, and a hydrophilic inner layer 3 arranged in sequence; the antibacterial outer layer Layer 1 is made of antibacterial polymer; antibacterial polymer is polymerized by polyhydric alcohol and guanidinium salt, and antibacterial polymer is prepared by following method: take ethylene glycol 100g, guanidine nitrate 220g, add in reaction kettle, mix well, under nitrogen protection , adjusted the pH to 5 with hydrochloric acid, heated to 120°C, reacted for 3 hours, then added 25g of acrylic acid, carried out the esterification reaction for 1.5 hours, and finished the reaction to obtain it; the filter interlayer 2 is composed of polyacrylonitrile-based carbon fiber and composite mineral fiber ; The hydrophilic interlayer 3 is formed by melt-blowing modified resin slices.

...

Embodiment 2

[0038] The modified resin chip is made of the following raw materials in parts by weight: 45 parts of polypropylene chip, 15 parts of polybutylene terephthalate chip, 5 parts of chlorinated biphenyl, 4 parts of molybdenum disulfide, nanometer Au36 (SCH2CH3) 24 0.8 copies of clusters;

[0039] Preparation of modified resin slices: put polypropylene slices and polybutylene terephthalate slices in a vacuum oven to dry; dry polypropylene slices, polybutylene terephthalate slices, Benzene, molybdenum disulfide, nano Au 36 (SCH 2 CH 3 ) 24 The clusters are blended in the twin-screw extruder, and the melt stream is condensed in the water tank, then air-dried by the air dryer, pelletized by the pelletizer, and the modified resin slices are obtained; the drying temperature in the vacuum oven is set at 100-120°C, The drying time is 30-60min;

[0040]Resin chip melt blowing: feed the dried modified resin chip into the screw extruder, and after being melted by the heating tube, it wi...

Embodiment 3

[0045] In this embodiment, a method for preparing a multi-layer melt-blown nonwoven fabric is proposed, comprising the following steps:

[0046] S1: Antibacterial melt-blown non-woven fabrics, filter melt-blown non-woven fabrics and hydrophilic melt-blown non-woven fabrics were prepared using a melt-blown machine;

[0047] S2: The antibacterial melt-blown non-woven fabric, the filter melt-blown non-woven fabric and the hydrophilic melt-blown non-woven fabric are laminated from the outside to the inside to obtain the melt-blown non-woven fabric.

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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Abstract

The invention discloses a multi-layer melt-blown non-woven fabric and a preparation method thereof. The multi-layer melt-blown non-woven fabric is formed by compositing an antibacterial outer layer, a filtering interlayer and a hydrophilic inner layer which are arranged in sequence. The multi-layer melt-blown non-woven fabric has the antibacterial function, is resistant to abrasion, durable, good in filtering effect, resistant to water and hydrophilic, is used for making masks, and can be used for a long time; the preparation method of the multi-layer molten non-woven fabric is simple in process and convenient to implement; and a melt-blowing machine for preparing the multi-layer molten non-woven fabric is smooth in spinning, good in spinning effect and concentrated in hot air strength and heat, it is guaranteed that spinning work is stably carried out, the function that a single heating rod heats air and melts materials at the same time can be achieved, the structure is simplified, the use cost is reduced, waste heat utilization of a heating device of a screw extruder can be achieved, and the purpose of preheating the air is achieved.

Description

technical field [0001] The invention relates to the field of melt-blown cloth control, in particular to a multi-layer melt-blown non-woven fabric and a preparation method thereof. Background technique [0002] Melt-blown nonwovens were first developed by the U.S. Navy in 1954. Through the air jet method, the fiber diameter can be controlled below 5 μm. Because the fiber diameter is small and soft, it is made into a nonwoven fabric. With the continuous development and improvement of technology, the application of melt-blown non-woven materials in filtration, waterproof, adsorption, anti-bacteria, warmth, medical and health care has increased. In recent years, new materials, new processes and new products of melt-blown nonwovens have emerged continuously, and the application fields have continued to expand. [0003] Melt-blown non-woven fabrics are low in production cost and have the characteristics of softness and fluffiness, so they can be used as the base material of wet ...

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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IPC IPC(8): D04H1/42D04H1/4242D04H1/4209D01D5/098B32B27/02B32B27/32B32B9/00B32B9/04B32B5/02B32B27/12B32B27/36
CPCD04H1/42D04H1/4242D04H1/4209D01D5/0985B32B5/022B32B5/08B32B5/26B32B2262/0253B32B2262/0276B32B2262/106B32B2262/14B32B2307/554B32B2307/7145B32B2307/728Y02P70/62
Inventor 李锋
Owner 宿迁正峰包装材料有限公司
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