Method for manufacturing split ultrafine fiber hydro-entangled nonwoven fabric by adopting mechanical fiber spreading

A non-woven fabric and ultra-fine fiber technology, applied in the direction of non-woven fabric, fabric elongation, textile and paper making, etc., can solve the problems of serious environmental pollution and large energy consumption, and achieve simple process, low energy consumption, strong strength high effect

Inactive Publication Date: 2010-06-30
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second fiber opening treatment generally adopts the chemical fiber opening method. Therefore, the loss of material strength,

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

[0039] The rice-shaped polyester / polyamide split-type fiber (fineness 2D, length 51mm) is made into a surface density of 55g / m after opening, carding and web-laying processes 2 Split-type fiber web, the fiber web is consolidated through the spunlace process, and the fibers in the fiber web are opened for the first time, and after drying, a spunlace nonwoven fabric with a fiber opening rate of 30% is made, and then the spunlace The non-woven fabric is stretched vertically and horizontally to obtain a polyester / polyamide split superfine fiber spunlace non-woven fabric. Its spunlace process: the number of spunlace passes is 7, the water needle pressure is 20Bar, 40Bar, 60Bar, 80Bar, 90Bar, 100Bar, 120Bar, the drum speed is 60m / min, and the drying temperature is 150°C; its biaxial stretching process : The elongation rate of longitudinal stretching is 15%, the drafting ratio of the drafting machine is 1.15, and the longitudinal stretching equipment used is a multi-roller drafting m...

Embodiment 2

[0041] The star-shaped polypropylene / polyamide split fiber (fineness 2D, length 51mm) is made into a surface density of 55g / m after opening, carding and web-laying processes 2 Split-type fiber web, the fiber web is consolidated through the spunlace process, and the fibers in the fiber web are opened for the first time, and after drying, a spunlace nonwoven fabric with a fiber opening rate of 30% is made, and then the spunlace The non-woven fabric is stretched vertically and horizontally to obtain a polypropylene / polyamide split superfine fiber spunlace non-woven fabric. Its spunlace process: 7 spunlace passes, the water needle pressure is 20Bar, 40Bar, 60Bar, 80Bar, 90Bar, 100Bar, 120Bar, the speed of the conveying curtain is 60m / min, and the drying temperature is 130℃; its biaxial stretching Process: The elongation rate of longitudinal stretching is 20%, the draft ratio of the drafting machine is 1.20, and the longitudinal stretching equipment used is a multi-roller drafting ...

Embodiment 3

[0043] The sliced ​​polyester / polypropylene split fiber (fineness 2D, length 51mm) is made into a surface density of 50g / m after opening, carding and web laying processes 2 The split-type fiber web is consolidated after three preliminary spunlace processes, and at the same time the fibers in the fiber web are opened for the first time. After drying, a spunlace nonwoven fabric with a fiber opening rate of 25% is made, and then The above-mentioned spunlaced nonwoven fabric is biaxially stretched, and after stretching, it is spunlaced again in 2 passes, and after drying, a polyester / polypropylene split superfine fiber spunlace nonwoven fabric is obtained. Its spunlace process: the total number of spunlace is 5, the water needle pressure is 25Bar, 40Bar, 60Bar, 80Bar, 100Bar, the drum speed is 60m / min, and the drying temperature is 130℃; its bidirectional stretching process: longitudinal stretching The elongation rate is 15%, and the drawing ratio of the drafting machine is 1.15, ...

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Abstract

The invention relates to a method for manufacturing a split ultrafine fiber hydro-entangled nonwoven fabric by adopting mechanical fiber spreading, which comprises the following steps of: together finishing the fiber spreading and splitting of two different component fibers of a split fiber in a nonwoven fabric by adopting two mechanical fiber spreading methods, i.e. a hydro-entangling method and a bidirectional stretching method with no environment pollution, no weightlessness and low strength loss, and finally preparing the ultrafine fiber hydro-entangled nonwoven fabric containing two different components. Through detection, the fineness of a univalve fiber after fiber spreading is 0.05-0.50, the average fiber spreading ratio is 80 percent, the weight-loss ratio is 0 percent, and the average strength loss is 1.2 percent. The method has simple operation, no use of a chemical agent, little fiber damage, less energy consumption and no environment pollution. The prepared ultrafine fiber nonwoven fabric has the excellent characteristics of high strength, air permeability, moisture permeability, strong adsorption capacity, three-dimensional disorderly fiber web structure, chamois-like appearance and the like and can be widely applied to the fields of high-grade synthetic leather, artificial chamois, high-grade wiping fabrics and the like.

Description

technical field [0001] The present invention relates to a method for preparing superfine fiber non-woven fabrics by adopting fiber opening process, in particular to a method for producing superfine fiber spunlace nonwoven fabrics by mechanically opening two-component split fiber spunlace nonwoven fabrics. cloth method. The produced microfiber spunlaced nonwovens can be used in high-grade synthetic leather, artificial suede, high-grade wiping cloth and other fields. Background technique [0002] At present, the research and development of ultrafine fiber materials are progressing rapidly. Fibers with fineness less than 0.3dtex are usually called superfine fibers. Superfine fiber has excellent properties that cannot be compared with ordinary fibers, and has high added value. Its extremely fine single fiber fineness, large specific surface area and special-shaped fiber cross-section endow the material with soft hand feeling, natural luster and good transparency. Generality. ...

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): D04H1/46D06C3/00D06C3/06D04H1/435D04H1/4382
Inventor 殷保璞吴海波靳向煜钱雯瑾黄建华王洪王荣武
Owner DONGHUA UNIV
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