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Preparation method and application of composite non-woven fabric

A technology of non-woven fabrics and composite fiber webs, which is applied in non-woven fabrics, textiles, and papermaking, and can solve the problems of fiber electrostatic non-woven fabrics, immature technology, and insufficient softness and comfort.

Inactive Publication Date: 2021-03-30
ZHUZHOU QIANJIN PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The linear density of cotton fiber is 1.54~2.5dtex. After degreasing and bleaching, the texture of spunlace fabric is worse than that of silk spunlace fabric. Generally, spunlace fabric made of cotton material can be used on the surface of sanitary napkins, with better wear resistance. , the combination between fibers is relatively loose, good water absorption, applied to the top layer of sanitary napkins, menstrual blood can be absorbed quickly, but it is wet after use, not dry enough, soft and comfortable enough
[0004] Hemp fiber has good natural antibacterial properties and good moisture absorption and release properties. The fiber linear density is 1.8-3.15dtex. After being made into spunlace non-woven fabrics, the non-woven fabrics have good antibacterial properties and dryness, but poor comfort.
The linear density of cotton fiber is 1.54~2.5dtex. After degreasing and bleaching, the spunlace fabric is soft and comfortable, with good water absorption and poor dryness.
At the same time, hemp fiber is prone to static electricity, and the fiber is thicker and harder than cotton fiber. During the production process, it is necessary to solve the static electricity of the fiber and the comfort of the final non-woven fabric.
[0005] At present, the technology of mixing hemp fiber and cotton fiber to prepare non-woven fabrics is immature in the market. CN201620395436. The process is combined into a three-layer composite structure, in which the soft close-fitting layer is made of natural pure cotton fiber, and the sterilizing layer is made of natural hemp fiber, which has not been made into a composite fiber non-woven material. At the same time, there is no hemp fiber, hemp fiber, Composite non-woven fabrics made of cotton fibers are used in sanitary products

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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  • Preparation method and application of composite non-woven fabric
  • Preparation method and application of composite non-woven fabric
  • Preparation method and application of composite non-woven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Embodiment 1 A kind of preparation method of spunlace nonwoven fabric

[0075] (1) Preparation of cotton fiber web

[0076] 100% natural cotton fibers are picked up and fed by the disc bale grabber, and transported to the JWF1011 multi-functional separator by airflow to remove large and heavy impurities in the cotton fibers, and then transported to the JWF1012 uniaxial flow opener for preliminary opening , the cotton flow after opening passes through the elf 8 foreign fiber machine to remove the foreign fibers in the cotton fiber, and after being mixed by the JWF1022 multi-compartment blending machine, it is sent to the JWF1124 fine cotton opener to finely open the cotton flow and remove fine impurities , into the ZWF1206 pre-carding machine for careful carding. After the carding is completed, it is sent to the ZGB1026 cotton storage box, the pressure in the cotton storage box is 880Pa, the ZGB1213 carding machine is evenly formed into a web, the feeding speed of the c...

Embodiment 2

[0091] Embodiment 2 A kind of preparation method of spunlace non-woven fabric

[0092] (1) Preparation of cotton fiber web

[0093] 100% natural cotton fibers are picked up and fed by the disc bale grabber, and transported to the JWF1011 multi-functional separator by airflow to remove large and heavy impurities in the cotton fibers, and then transported to the JWF1012 uniaxial flow opener for preliminary opening , the cotton flow after opening passes through the elf 8 foreign fiber machine to remove the foreign fibers in the cotton fiber, and after being mixed by the JWF1022 multi-compartment blending machine, it is sent to the JWF1124 fine cotton opener to finely open the cotton flow and remove fine impurities , into the ZWF1206 pre-carding machine for careful carding. After the carding is completed, it is sent to the ZGB1026 cotton storage box, the pressure in the cotton storage box is 850Pa, the ZGB1213 carding machine is evenly formed into a web, the feeding speed of the ...

Embodiment 3

[0108] Embodiment 3 A kind of preparation method of spunlace nonwoven fabric

[0109] (1) Preparation of cotton fiber web

[0110] 100% natural cotton fibers are picked up and fed by the disc bale grabber, and transported to the JWF1011 multi-functional separator by airflow to remove large and heavy impurities in the cotton fibers, and then transported to the JWF1012 uniaxial flow opener for preliminary opening , the cotton flow after opening passes through the elf 8 foreign fiber machine to remove the foreign fibers in the cotton fiber, and after being mixed by the JWF1022 multi-compartment blending machine, it is sent to the JWF1124 fine cotton opener to finely open the cotton flow and remove fine impurities , into the ZWF1206 pre-carding machine for careful carding. After the carding is completed, it is sent to the ZGB1026 cotton storage box, the pressure in the cotton storage box is 900Pa, the ZGB1213 carding machine is evenly formed into a web, the feeding speed of the c...

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 discloses a preparation method and application of a composite non-woven fabric. The composite non-woven fabric is prepared by laying a cotton fiber net layer and a hemp fiber net througha spunlace process, the cotton fiber layer is a straight laying net, and the hemp fiber layer is a full cross laying net. The semi-crossed parallel lapping technology is adopted, the cotton fiber layer is laid directly, and the hemp fiber layer is fully crossed. After a sanitary towel is manufactured, the cotton fiber layer makes contact with the skin, and longitudinally-arranged fibers are easyto longitudinal diffuse of menstrual blood and not easy to side leakage; the hemp fiber layer is in contact with a flow guide layer of the sanitary towel, so that the antibacterial property of the non-woven fabric is guaranteed, and discomfort caused by contact of thick hemp fibers with skin is avoided; and meanwhile, the structure facilitates infiltration of menstrual blood and enables the menstrual blood to diffuse to the periphery, the problem of lateral leakage of the menstrual blood is solved, and safety and dryness of the sanitary towel are enhanced.

Description

technical field [0001] The invention relates to the technical field of non-woven fabrics, and more specifically, to a preparation method and application of composite non-woven fabrics. Background technique [0002] Non-woven fabrics are widely used in medical products and hygiene products. The non-woven fabrics used in sanitary products include air-through non-woven fabrics, spunbonded non-woven fabrics, hot-rolled non-woven fabrics, and pure cotton non-woven fabrics. [0003] The linear density of cotton fiber is 1.54~2.5dtex. After degreasing and bleaching, the texture of spunlace fabric is worse than that of silk spunlace fabric. Generally, spunlace fabric made of cotton material can be used on the surface of sanitary napkins, with better wear resistance. , The combination between fibers is relatively loose and has good water absorption. It is applied to the surface layer of sanitary napkins, and menstrual blood can be absorbed quickly, but it is wet after use, not dry e...

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): D04H1/74D04H1/492D04H1/498D04H1/425
CPCD04H1/425D04H1/492D04H1/498D04H1/74
Inventor 刘少峰李伏君黄玉琴裴新梅徐多乐刘凯华颜肖辉
Owner ZHUZHOU QIANJIN PHARMA
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