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Novel melt-blown non-woven cloth and preparation method thereof

A meltblown nonwoven fabric and a new type of technology, applied in the field of nonwoven fabrics, can solve the problems of single function of nonwoven fabrics, unfavorable static air retention, small specific surface area, etc., achieve good thermal insulation and adsorption, improve thermal insulation effect, The effect of increasing the flame retardant effect

Inactive Publication Date: 2015-07-01
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing non-woven fabrics are usually made of fibers with a circular cross-section. The traditional circular fibers have a small specific surface area and poor adsorption performance, which is not conducive to the retention of static air in the non-woven fabric. Traditional non-woven fabrics The thermal insulation effect of woven fabrics needs to be improved, and the existing nonwoven fabrics rarely add functional reagents during processing, which makes the nonwoven fabrics have a single function. Function needs to be improved

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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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0018] A kind of preparation method of novel melt-blown nonwoven fabric, comprises the following steps successively:

[0019] a) Raw material preparation: Polypropylene, high-density polyethylene, low-density polyethylene, linear low-density polyethylene, polyvinyl chloride, polyethylene terephthalate, polytrimethylene terephthalate, polyethylene terephthalate Any one of butanediol diformate, polyamide-6, polyamide-66, polylactic acid and polyphenylene sulfide is made into polymer slices, and the polymer slices are fully dried before melt spinning to make them Moisture content is less than 0.5%;

[0020] b) Melt extrusion: feed the polymer chips into the screw extruder for melt extrusion, and add toughening agent, water repellent, flame retardant and essential oil to the screw extruder, polymer chips, toughening Agent, waterproof agent, flame retardant and essential oil are mixed and then sprayed out through the special-shaped melt-blown die head device. The length-to-diamete...

Embodiment 1

[0024] A new type of melt-blown nonwoven fabric, including a nonwoven fabric made of special-shaped fibers, the cross-section of the special-shaped fibers is pentagonal, the special-shaped fibers are made of high-density polyethylene, and the radius R of the circumscribed circle of the cross-section of the special-shaped fibers is 4 μm.

[0025] A kind of preparation method of novel melt-blown nonwoven fabric, comprises the following steps successively:

[0026] a) Raw material preparation: High density polyethylene is made into high polymer slices, and the high polymer slices are fully dried before melt spinning so that the moisture content is less than 0.5%;

[0027] b) Melt extrusion: feed the polymer chips into the screw extruder for melt extrusion, and add toughening agent, water repellent, flame retardant and essential oil to the screw extruder, polymer chips, toughening Agent, waterproof agent, flame retardant and essential oil are mixed and sprayed out through the spe...

Embodiment 2

[0030] A new type of melt-blown nonwoven fabric, including a nonwoven fabric made of special-shaped fibers, the cross-section of the special-shaped fibers is five-lobed, the special-shaped fibers are made of polyethylene terephthalate, and the cross-section of the special-shaped fibers The radius R of the circumscribed circle of the cross section was 6 μm.

[0031] A kind of preparation method of novel melt-blown nonwoven fabric, comprises the following steps successively:

[0032] a) Raw material preparation: Polyethylene terephthalate is made into high polymer slices, and the high polymer slices are fully dried before melt spinning so that the moisture content is less than 0.5%;

[0033]b) Melt extrusion: feed the polymer chips into the screw extruder for melt extrusion, and add toughening agent, water repellent, flame retardant and essential oil to the screw extruder, polymer chips, toughening Agent, waterproof agent, flame retardant and essential oil are mixed and sprayed...

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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PUM

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Abstract

The invention discloses a novel melt-blown non-woven cloth and a preparation method thereof. The novel melt-blown non-woven cloth comprises a non-woven cloth manufactured by use of special-shaped fibers; the cross section of the single special-shaped fiber is any one of triangle, pentagon, Y-shape, three-leaf shape, four-leaf shape, five-leaf shape and hollow shape; the special-shaped fibers are produced from any one of polypropylene, high density polyethylene, low density polyethylene, linear low density polyethylene, polyvinyl chloride, polyethylene glycol terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyamide-6, polyamide-66, polylactic acid and polyphenylene sulfide. Compared with the traditional non-woven cloth, the novel melt-blown non-woven cloth has better heat retaining property and adsorbability; a waterproofing agent is added so that the non-woven cloth can be waterproof; due to a deodorant added, the non-woven cloth has a deodorization function; a flame retardant is added to enhance the flame retarding effect of the non-woven cloth; as a result, the non-woven cloth is applicable to fields of firefighting and the application fields of the product are expanded.

Description

【Technical field】 [0001] The invention relates to the technical field of nonwoven fabrics, in particular to the technical field of a novel melt blown nonwoven fabric and a preparation method thereof. 【Background technique】 [0002] Non-woven fabric is a kind of fabric formed without spinning and weaving. It is just oriented or randomly arranged textile short fibers or filaments to form a web structure, and then reinforced by mechanical, thermal bonding or chemical methods. . It is a soft and breathable new fiber product formed by directly using polymer chips, short fibers or filaments through various web forming methods and consolidation techniques. However, the existing non-woven fabrics are usually made of fibers with a circular cross-section. The traditional circular fibers have a small specific surface area and poor adsorption performance, which is not conducive to the retention of static air in the non-woven fabric. Traditional non-woven fabrics The thermal insulation...

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): D04H1/4391D04H1/56
Inventor 任元林刘晓辉程博闻刘甜甜王灵杰王秀丽赵洁云
Owner TIANJIN POLYTECHNIC UNIV
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