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High-barrier non-woven fabric composite material, and manufacturing method and special equipment thereof

A technology of composite materials and non-woven fabrics, which is applied in the direction of textiles, papermaking, and non-woven fabrics. It can solve the problems of complex procedures, time-consuming and labor-intensive, high production costs, and achieve cost savings, improved barrier capacity, and high production efficiency.

Inactive Publication Date: 2011-07-06
杨丽娜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in occasions with high barrier requirements, such as diaper bottom lining materials in the health industry, high-barrier surgical gowns and surgical drapes in the medical industry, protective clothing in the industrial industry, etc., spunbond / meltblown / spunbond non-woven materials The barrier property still cannot meet the demand, and it needs to be coated or used in combination with PP, PE and other film materials
The current coating or compounding with PP, PE and other films generally adopts a two-step method, that is, the non-woven fabric is first produced, and then coated or compounded with the film. The process is complicated, time-consuming and laborious, and the production cost is high.

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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  • High-barrier non-woven fabric composite material, and manufacturing method and special equipment thereof
  • High-barrier non-woven fabric composite material, and manufacturing method and special equipment thereof
  • High-barrier non-woven fabric composite material, and manufacturing method and special equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A high-barrier non-woven composite material, comprising at least two layers of spun-bonded non-woven fabrics and at least one layer of microfiber film-like structural material integrally formed; Between non-woven fabrics, each layer of spun-bonded non-woven fabric is 10g / m 2 , the microfiber membrane structure material is 5g / m 2 .

[0021] The equipment for preparing said high-barrier non-woven fabric, see figure 2 Including a workbench 2, a feeder 1 and a hot rolling mill 3, the feeder is provided with at least two completely isolated accommodation spaces for spunbond non-woven materials, the first accommodation space 11 for spunbond non-woven materials A first spun-bonded non-woven fabric material outlet 14 is provided near the end of the workbench, and a second spun-bonded non-woven fabric material outlet 16 is provided near the end of the workbench in the accommodation space 13 of the second spun-bonded non-woven fabric material; At least one melt-blown cloth ma...

Embodiment 2

[0029] A high-barrier non-woven fabric, comprising at least two layers of spunbond nonwoven fabric and at least one layer of ultrafine fiber film structure material integrally formed; the ultrafine fiber film structure material is sandwiched between the spunbond nonwoven fabric Between cloths, each layer of spunbonded non-woven fabric is 17.5g / m 2 , the microfiber membrane structure material is 15g / m 2 .

[0030] The equipment for preparing the high-barrier non-woven fabric is the same as that of Example 1; the difference is that the step C, opening the equipment, and opening the calender 17, the surfaces of the two rollers in the calender 17 are smooth, It is two metal rollers; the melt-blown cloth material 9 is hot-pressed under the process conditions of 110°C and 50N / mm to obtain a superfine fiber film-like structural material 91;

[0031] The method for preparing a high-barrier non-woven fabric with the above-mentioned equipment is the same as that of Example 1, except t...

Embodiment 3

[0033] A high-barrier non-woven fabric, comprising at least two layers of spunbond nonwoven fabric and at least one layer of ultrafine fiber film structure material integrally formed; the ultrafine fiber film structure material is sandwiched between the spunbond nonwoven fabric Between cloths, each layer of spunbonded non-woven fabric is 28g / m 2 , the microfiber membrane structure material is 24g / m 2 .

[0034] The equipment for preparing the high-barrier nonwoven fabric is the same as in Example 1; the difference is that the step C, opening the equipment, and opening the calender 17, the surfaces of the two rollers in the calender 17 are smooth, which is a A metal roller and a rubber roller; the melt-blown cloth material 9 is hot-pressed under the process conditions of 115°C and 60N / mm to obtain a superfine fiber membrane structure material 91;

[0035] The method for preparing high-barrier non-woven fabrics with the above-mentioned equipment is the same as in Example 1, ex...

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 relates to the technical field of non-woven fabric composite material manufacturing, in particular to a high-barrier non-woven fabric composite material, and a manufacturing method and special equipment thereof. The high-barrier non-woven fabric composite material comprises at least two layers of spunbond non-woven fabric and at least a layer of superfine fiber film-shaped structurematerial which are integrally formed, wherein, the superfine fiber film-shaped structure material is acquired by calendaring superfine fiber fabric produced through melt blowing, and is sandwiched between the two layers of spun-bonded non-woven fabric; and the density of the spunbond non-woven fabric is 3g / m2 to 120g / m2, and the density of the superfine film-shaped material is 3g / m2 to 60g / m2. The hydrostatic pressure (HSH) of the non-woven fabric composite material manufactured and acquired through the special equipment and the manufacturing method disclosed by the invention is at least 1.5 to 10 times of that of the ordinary SMS (spunbond plus meltblown plus spunbond) non-woven fabric formed by meltblown superfine fiber layers which are not calendared and filmed, so that the barrier ability is greatly improved to totally meet the high barrier requirements of fields such as medical treatment, sanitation, industry and the like for high-barrier products like operation gowns, operation towels, baby diaper bottom lining material, protective clothing and the like, and extra coating or filming processing is no more needed.

Description

technical field [0001] The invention relates to the technical field of preparation of non-woven composite materials, in particular to a high-barrier non-woven composite material and its manufacturing method and special equipment. Background technique [0002] The spunbond / meltblown / spunbond non-woven SMS production line tends to develop towards multi-melt spray heads. At present, there are SMMMMS four-melt spray heads, which are mainly targeted at the production of high barrier spunbond / melt blown / spunbond nonwovens. cloth. However, in occasions with high barrier requirements, such as diaper bottom lining materials in the health industry, high-barrier surgical gowns and surgical drapes in the medical industry, protective clothing in the industrial industry, etc., spunbond / meltblown / spunbond non-woven materials The barrier property still cannot meet the demand, and it needs to be coated or used in combination with PP, PE and other film materials. The current coating or comp...

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): D04H3/02D04H3/16
Inventor 杨丽娜
Owner 杨丽娜
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