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Finishing method of high water absorption hydrophilic nonwoven fabric for medical treatment

A technology of non-woven fabrics with high absorption rate, which is applied in the finishing field of hydrophilic non-woven fabrics with high absorption rate for medical use, can solve the problems of restricting large-scale applications and high equipment requirements, and achieve high production efficiency, low energy consumption, Good finishing effect

Inactive Publication Date: 2017-06-30
CHTC JIAHUA NONWOVEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing plasma finishing methods have corresponding defects, such as the need for vacuum conditions and high equipment requirements, which limit their large-scale application. The development of a simple and practical plasma finishing method is the focus of current research

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

Embodiment 1

[0021] A method for finishing a hydrophilic non-woven fabric with a high absorption rate for medical use, comprising the following steps: (1) low-temperature plasma treatment: taking a non-woven fabric base fabric, and performing low-temperature plasma treatment on at least one surface of the non-woven fabric base fabric; The low-temperature plasma treatment includes, under normal pressure, using one or more mixed gases in N2, Ar or He gas as the working gas, using ceramic electrodes, and performing low-temperature plasma on the non-woven fabric base cloth through dielectric barrier discharge. Treatment; the discharge frequency of the dielectric barrier discharge is 200MHz, and the airflow velocity of the working gas is 50FPM; (2) online liquid: the sorbitan fatty acid ester hydrophilic oil finishing liquid is coated on the non-woven base cloth The surface is dried at a high temperature; the temperature of the liquid is 25°C, and the liquid rate is 25%; the temperature of the h...

Embodiment 2

[0024] A method for finishing a hydrophilic non-woven fabric with a high absorption rate for medical use, characterized in that it comprises the following steps: (1) low-temperature plasma treatment: take the non-woven fabric base cloth, and carry out at least one surface of the non-woven fabric base cloth Low-temperature plasma treatment; the low-temperature plasma treatment includes, under normal pressure, using one or more mixed gases in N2, Ar or He gas as the working gas, using ceramic electrodes, and discharging the non-woven base fabric through dielectric barrier discharge. Carry out low-temperature plasma treatment; the discharge frequency of the dielectric barrier discharge is 250MHz, and the airflow velocity of the working gas is 40FPM; (2) online liquid: apply the polyglycerol fatty acid ester hydrophilic oil finishing liquid to the non-woven fabric The surface of the base fabric is dried at a high temperature; the temperature of the liquid is 20°C, and the liquid ra...

Embodiment 3

[0027] A method for finishing a hydrophilic non-woven fabric with a high absorption rate for medical use, characterized in that it comprises the following steps: (1) low-temperature plasma treatment: take the non-woven fabric base cloth, and carry out at least one surface of the non-woven fabric base cloth Low-temperature plasma treatment; the low-temperature plasma treatment includes, under normal pressure, using one or more mixed gases in N2, Ar or He gas as the working gas, using ceramic electrodes, and discharging the non-woven base fabric through dielectric barrier discharge. Carry out low-temperature plasma treatment; the discharge frequency of the dielectric barrier discharge is 200MHz, and the airflow velocity of the working gas is 60FPM; (2) online liquid: apply the polyglycerol fatty acid ester hydrophilic oil finishing liquid to the non-woven fabric The surface of the base fabric is dried at a high temperature; the temperature of the liquid is 30°C, and the liquid ra...

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Abstract

The present invention provides a finishing method of a high water absorption hydrophilic nonwoven fabric for medical treatment. The finishing method comprises: (1) low temperature plasma treatment: taking a nonwoven fabric base cloth, and carrying out low temperature plasma treatment on at least one surface of the nonwoven fabric base cloth, wherein the low temperature plasma treatment comprises: carrying out low temperature plasma treatment on the nonwoven fabric base cloth under a normal pressure by using N2, Ar or He gas as a working gas by using a ceramic electrode through dielectric barrier discharge; (2) online liquid injection: coating a fatty acid ester finishing liquid on the surface of the nonwoven fabric base cloth, and carrying out high temperature drying; and (3) cutting and packaging. According to the present invention, the method does not require the vacuum condition, can directly achieve the online liquid injection, and can directly perform the low temperature plasma treatment under the normal pressure without other additional equipment conditions; and the produced non-woven has characteristics of soft handfeeling and comfort, and can especially meet the high water absorption requirement in the medical industry, and the method can well meet the large-scale industrial production.

Description

technical field [0001] The invention belongs to the field of non-woven fabrics, in particular to a method for finishing hydrophilic non-woven fabrics with high absorption rate for medical use. Background technique [0002] Non-woven fabric (non-woven fabric) is a kind of fabric formed without spinning and weaving. It just orients or randomly arranges short textile fibers or filaments to form a web structure, and then uses mechanical, thermal bonding or chemical bonding. Reinforced by other methods. To put it simply: it is not interwoven and knit together by yarns one by one, but the fibers are directly bonded together through physical methods, so when you get the sticky scale in your clothes , you will find that it is impossible to extract the thread ends one by one. Nonwovens have broken through the traditional textile principles, and have the characteristics of short process flow, fast production speed, high output, low cost, wide application, and multiple sources of raw...

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): D06M10/02D06M13/224D06M15/53D01F8/06D01F1/10D01D5/32D04H3/007D04H3/16D06M101/20
CPCD06M10/025D01D5/32D01F1/10D01F8/06D04H3/007D04H3/16D06M13/224D06M15/53D06M2101/20
Inventor 邓连华张金秋曹仁广韩旭张植民付少辉
Owner CHTC JIAHUA NONWOVEN CO LTD
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