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Finishing method for non-woven fabrics with high isolation performance and materials of non-woven fabrics with high isolation performance

A non-woven fabric and high-isolation technology, which is applied in fiber processing, textiles and papermaking, etc., can solve the problems of difficult large-scale industrial production, high vacuum conditions, and difficult industrial production, so as to reduce energy consumption and breathability The effect of small sex and saving production cost

Active Publication Date: 2013-03-27
SHANDONG JUNFU NONWOVEN MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vacuum condition is relatively high, it is difficult to be used in large-scale industrial production, and the efficiency is low
However, the atomization of grafting reagents consumes a lot of energy, and the efficiency is low, and there is an impact on the production environment in the open environment of the production line; it is also difficult for large-scale industrial production

Method used

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  • Finishing method for non-woven fabrics with high isolation performance and materials of non-woven fabrics with high isolation performance
  • Finishing method for non-woven fabrics with high isolation performance and materials of non-woven fabrics with high isolation performance
  • Finishing method for non-woven fabrics with high isolation performance and materials of non-woven fabrics with high isolation performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The process flow of this example is as follows figure 1 As shown, polypropylene particles with a melt index of 20-80g / 10min and a melt index of 800-1500g / 10min are used as the main raw materials of the non-woven spunbond layer and the meltblown layer respectively, and the non-woven spunbond layer is abbreviated as S layer. The melt blown layer is abbreviated as M layer. The base weight is 45gsm, and the laminated non-woven base fabric is S / M / S through melt spinning and hot rolling consolidation. Non-woven fabrics were treated with normal-pressure low-temperature plasma by ceramic electrode dielectric barrier discharge method, the discharge frequency was 150MHz, the working gas was argon, and the gas flow rate was 20FPM. The generated plasma interacts with the surface of the non-woven fabric, increasing the surface energy of the non-woven fabric and introducing reactive free radicals. After plasma surface activation, the non-woven fabric passes through the pre-configur...

Embodiment 2

[0033] The process flow of this example is as follows figure 2 As shown, polypropylene particles with a melt index of 20-80g / 10min and a melt index of 800-1500g / 10min are used as the main raw materials of the non-woven spunbond layer and the meltblown layer respectively, and the non-woven spunbond layer is abbreviated as S layer. The melt blown layer is abbreviated as M layer. The base weight is 45gsm, and the laminated non-woven base fabric is S / M / S through melt spinning and hot rolling consolidation. The non-woven fabric passes through the pre-configured treatment solution twice successively, that is, Figure 5 As shown, it passes through two upper liquid rollers to coat the two surfaces of the non-woven base fabric respectively. The formula of the treatment liquid includes 2-(perfluorohexyl) ethyl methacrylate monomer, the concentration is 10wt%; the emulsifier is lauryl polyoxyethylene ether, the dosage is 0.8wt%, and the temperature of the treatment liquid is set at 30...

Embodiment 3

[0036] In this example, the two-component staple fiber with a ratio of polypropylene and polyethylene of 1:1 is used as the main raw material to form a spunbond layer as the upper surface layer and the lower surface layer. The spunbond layer is abbreviated as ES layer; and the melt index is 800- The meltblown layer prepared with 1500g / 10min polypropylene particles as the main raw material is used as the middle layer, and the meltblown layer is abbreviated as M layer. After short fiber laying, melt spinning, short fiber laying and hot air consolidation, a non-woven base fabric with a basis weight of 50gsm and laminated ES / M / ES is formed. Helium was used as the working gas, and the finishing methods of Example 1 and Example 2 were repeated respectively to prepare non-woven fabric materials with high isolation performance.

[0037] The isolation performance of the nonwoven fabric with high isolation performance prepared in this example can meet the requirements of use.

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Abstract

The invention relates to a finishing method for non-woven fabrics with high isolation performance and materials of the non-woven fabrics with the high isolation performance. The finishing method combines on-line liquid feeding and normal-pressure low-temperature plasma processing, carries out normal-pressure low-temperature plasma processing before or after on-line liquid feeding, and forms a fluorine-containing polymer layer on the surface of the non-woven fabrics, so as to realize high isolation performance. The invention provides the finishing method for the non-woven fabrics which is novel, simple in process and good in finishing effect. Compared with the traditional saturated steeping, the finishing method has small influences on the non-woven fabrics, is high in production efficiency and has low energy consumption; compared with the existing plasma processing method, vacuum conditions are not needed, on-line liquid feeding is directly carried out, and low-temperature plasma processing is directly carried out under normal pressure, and other additional equipment conditions are not needed; and the contact angle between the prepared non-woven fabrics with high isolation performance and water can reach 120-160 degrees, and the prepared non-woven fabrics with high isolation performance has good air permeability and soft and comfortable feel, can reach requirements for resisting alcohol, oil and blood of each industry, and can well meet the large-scale industrial production.

Description

technical field [0001] The present application relates to the field of subsequent processing methods of non-woven fabrics, in particular to a finishing method of high-isolation performance non-woven fabrics and the sorted high-isolation non-woven fabric materials. Background technique [0002] The use of disposable non-woven fabrics in medical products has attracted more and more people's attention. In order to avoid various pollutions of blood, oil and alcohol on staff and patients in nursing and surgery, and to achieve a better protective effect, it is also necessary to Non-woven fabrics are finished with high barrier properties against blood, oil and alcohol. [0003] The traditional non-woven fabric isolation performance finishing method adopts a saturated impregnation method, adding fluorine-containing reagents to the surface of the non-woven fabric to form a polymer film layer to improve the isolation performance of the non-woven fabric. However, the traditional finis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M14/28D06M14/32
Inventor 宁新常丽彭文忠张继伟
Owner SHANDONG JUNFU NONWOVEN MATERIALS
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