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Method for producing non-woven fabric based on polypropylene powder modification

A polypropylene powder, non-woven technology, applied in the direction of one-component polyolefin rayon, non-woven fabrics, textiles and papermaking, etc., can solve the problems of poor air permeability, easy to generate static electricity, low moisture content and other problems of non-woven fabrics , to achieve the effect of improving antistatic performance, avoiding excessive waste, and improving antibacterial ability

Pending Publication Date: 2021-12-03
HUNAN SHENGJIN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the non-woven fabrics and non-woven masks currently used also have the following problems: 1. The non-woven fabrics used have poor air permeability, and it is easy to produce discomfort such as hypoxia when worn for a long time; The moisture content in the air is too low when in contact with the card clothing, so it is easy to generate static electricity

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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  • Method for producing non-woven fabric based on polypropylene powder modification
  • Method for producing non-woven fabric based on polypropylene powder modification

Examples

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Effect test

Embodiment 1

[0024] A method for producing non-woven fabrics based on polypropylene powder modification, comprising the following steps:

[0025] A) Preparation of modified aerosol: Heat and cook the coconut shell, firstly raise the heating temperature to 100°C for 35 minutes, then raise the temperature to 120°C for 6 minutes, and the heating rate is 3°C / min to obtain the cooking residue, then Fermentation and enzymolysis treatment are carried out to obtain coconut shell fiber, the fermentation temperature is 50°C, the fermentation time is 2h, the enzymolysis temperature is 20°C, and the enzymolysis time is 12h, and the obtained coconut shell fiber is dried until the water content of the coconut shell fiber is 6%. Carry out ultrafine pulverization, the ultrafine pulverization particle size of coconut shell fiber is 200 mesh, add deionized water to dissolve to make fiber solution, drying temperature is 70 ℃, drying time is 4h, and finally put into ultrasonic aerosol generating device to reac...

Embodiment 2

[0029] A method for producing non-woven fabrics based on polypropylene powder modification, comprising the following steps:

[0030] A) Preparation of modified aerosol: Heat and cook the coconut shell, firstly raise the heating temperature to 110°C for 30 minutes, then raise the temperature to 128°C for 5 minutes, and the heating rate is 2°C / min to obtain cooking slag, then Perform fermentation and enzymolysis treatment to obtain coconut shell fiber, the fermentation temperature is 60°C, the fermentation time is 1h, the enzymolysis temperature is 30°C, and the enzymolysis time is 14h, and the obtained coconut shell fiber is dried until the water content of the coconut shell fiber is 5%. Carry out ultrafine pulverization, the ultrafine pulverization particle size of coconut shell fiber is 300 mesh, add deionized water to dissolve and make fiber solution, drying temperature is 55 ℃, drying time is 6h, and finally put into ultrasonic aerosol generating device to react to obtain mo...

Embodiment 3

[0034] A method for producing non-woven fabrics based on polypropylene powder modification, comprising the following steps:

[0035] A) Preparation of modified aerosol: Heat and cook the coconut shell, firstly raise the heating temperature to 105°C for 32 minutes, then raise the temperature to 126°C for 8 minutes, and the heating rate is 4°C / min to obtain cooking slag, then Carry out fermentation and enzymolysis treatment to obtain coconut shell fiber, the fermentation temperature is 54°C, the fermentation time is 1.3h, the enzymolysis temperature is 25°C, and the enzymolysis time is 13h, and the obtained coconut shell fiber is dried until the water content of the coconut shell fiber is 10%. , carry out ultra-fine grinding, coconut shell fiber ultra-fine grinding particle size is 250 mesh, add deionized water to dissolve and make fiber solution, drying temperature is 60 ℃, drying time is 5h, and finally put into ultrasonic aerosol generating device to react to obtain modificati...

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Abstract

The invention discloses a method for producing a non-woven fabric based on polypropylene powder modification, and belongs to the technical field of non-woven fabric production. The method comprises the following steps of preparing modified aerosol: heating and cooking coconut shells, obtaining cooking residues, performing fermentation and enzymolysis to obtain coconut shell fibers, performing drying and superfine grinding on the obtained coconut shell fibers, adding deionized water for dissolution to prepare a fiber solution, and finally putting the fiber solution into an ultrasonic aerosol generation device for reaction to obtain the modified aerosol; modifying polypropylene powder: spraying the obtained modified aerosol on the surface of the polypropylene powder through a nozzle, fully mixing, extruding in a double-screw extruder, and drying to obtain the modified polypropylene powder; and producing the non-woven fabric: carrying out heat melting and spinning processes on the obtained modified polypropylene powder, finally feeding a spun product into an opener, and carrying out opening treatment to obtain a non-woven fabric fiber web, so as to obtain the non-woven fabric. According to the method, the polypropylene powder is modified, so that the air permeability and the antistatic property of the non-woven fabric are further improved.

Description

technical field [0001] The invention belongs to the technical field of non-woven fabric production, in particular to a method for producing non-woven fabrics based on the modification of polypropylene powder. Background technique [0002] In recent years, with the rampant spread of respiratory infectious viruses (such as Ebola virus, SARS virus, etc.), public health issues have received attention from all walks of life. Especially in 2020, the new coronavirus spreads globally, posing a huge threat to human life. Medical masks and protective clothing have become important protective equipment to prevent the spread of the virus and protect the health of the population. Non-woven fabrics are moisture-proof, breathable, flexible, lightweight, non-toxic and non-irritating, and are important components of protective masks and protective clothing. However, the non-woven fabrics and non-woven masks currently used also have the following problems: 1. The non-woven fabrics used have ...

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): D04H1/54D01F6/46D01F1/10D01F1/09
CPCD04H1/54D01F6/46D01F1/103D01F1/09D01F1/10
Inventor 龚宇峰蒋福荣
Owner HUNAN SHENGJIN NEW MATERIAL
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