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Spunlace composite nonwoven fabric and preparation method thereof

A non-woven and spunlace technology, applied in needle punching machines, non-woven fabrics, textiles and papermaking, etc., can solve the problems of product performance uniformity and reduced stability, and achieve difficult interface separation, good hand feel, and shape retention. good effect

Active Publication Date: 2020-02-18
江苏索富达无纺布有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of viscose fiber blended product cannot maximize the advantages of viscose fiber, because when viscose fiber and other blended fibers are included on the same wearing surface, once the blending uniformity is not enough, the uniformity of product performance and Stability will be significantly reduced

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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  • Spunlace composite nonwoven fabric and preparation method thereof
  • Spunlace composite nonwoven fabric and preparation method thereof
  • Spunlace composite nonwoven fabric and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0038] The preparation method of above-mentioned spunlace composite non-woven fabric, comprises the following steps:

[0039]S1. High-strength fiber web: laying high-strength fibers into a web to prepare a high-strength fiber web;

[0040] S2. Viscose fiber web: laying viscose fiber into a web to prepare a viscose fiber web;

[0041] S3. Spunlace reinforcement: laminate high-strength fiber webs and viscose fiber webs with a mass ratio of 9:1 to 5:5, and perform composite spunlace on the laminated composite fiber webs to obtain a composite non-woven fabric after spunlace reinforcement;

[0042] S4. Drying and molding: drying the spunlace-reinforced composite non-woven fabric, then winding, removing defects, slitting and packaging to obtain a spunlace composite non-woven fabric.

[0043] Preferably, in step S3, the composite spunlace uses high-pressure water flow to perform 5-10 spunlace processes on the laminated composite fiber web, and the water needle pressure of each spunl...

Embodiment 1

[0058] The spunlace composite non-woven fabric provided in this example is made of polyester fiber web and viscose fiber web with a mass ratio of 5:1 and is spunlace reinforced, and its surface density is 120g / m 2 , the polyester fiber fineness is 5dtex, and the viscose fiber fineness is 0.8dtex, and its preparation method comprises the following steps:

[0059] S1. Polyester fiber web: laying polyester fibers with a fineness of 5dtex into a web to prepare a polyester fiber web;

[0060] S2. Viscose fiber web: laying viscose fiber with a fineness of 0.8dtex into a web to prepare a viscose fiber web;

[0061] S3. Spunlace reinforcement: The polyester fiber web and the viscose fiber web with a mass ratio of 5:1 are laminated, and the laminated composite fiber web is composited with five spunlace processes to obtain a composite nonwoven after spunlace reinforcement. cloth;

[0062] Among them, the water needle pressure P of the first spunlace process 1 is 2MPa, the water needl...

Embodiment 2～11

[0065] The surface density, mass ratio and fineness of polyester fibers and viscose fibers of the spunlace composite nonwovens provided in Examples 2 to 11 are shown in Table 1, wherein the preparation methods of Examples 2 and 3 and Examples 6 to 8 All are substantially the same as in Embodiment 1, and will not be repeated here. The water needle pressures of the five spunlace processes in Example 4 are 2MPa, 5MPa, 11MPa, 10.5MPa and 9.5MPa respectively, and the water needle pressures of the five spunlace processes in Example 5 are 2MPa, 5MPa, 14MPa, 13.5MPa respectively and 12.5Mpa, others are basically the same as in Embodiment 1, and will not be repeated here.

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Abstract

The invention provides a spunlace composite nonwoven fabric and a preparation method thereof. The composite nonwoven fabric is made with a high-strength fiber web and a viscose fiber web by Hydroentangling reinforcement in a mass ratio of 9:1 to 5:5. According to the invention, viscose fibers with fineness of 0.5-5 dtex and high-strength fibers with fineness of 3-15 dtex are respectively made intofiber webs, hydroentangling reinforcement is carried out through a plurality of hydroentangling processes, the pressure intensity, water jet aperture and acting distance of each hydroentangling process are strictly controlled, and the high-strength fiber and viscose spunlace composite nonwoven fabric with good strength and shape retention property is prepared by reasonably controlling the relationship between the hydroentangling process parameters and the surface density of the composite nonwoven fabric. Through reasonable structural design and scientific production process parameters, the usage of the viscose fibers is remarkably reduced under the condition that the thickness and effect of finished products are equal to those of the existing viscose fiber products, the production energyconsumption and cost are greatly reduced, and the production efficiency and income are remarkably increased.

Description

technical field [0001] The invention belongs to the technical field of nonwoven fabrics, and in particular relates to a spunlace composite nonwoven fabric and a preparation method thereof. Background technique [0002] Viscose fiber is a cellulose fiber obtained by extracting and reshaping fiber molecules from natural wood cellulose. It has a smooth and cool touch, good hygroscopicity, air permeability, antistatic, anti-ultraviolet, bright colors, and dyeing fastness. It has the characteristics of better quality, has the essence of cotton and the quality of silk, so it has irreplaceable advantages in the fields of clothing, leather, curtains, wall coverings, etc. However, viscose fiber also has disadvantages such as poor strength, easy to wrinkle, non-abrasion resistance, poor dimensional stability, and high shrinkage rate, and the preparation process of viscose fiber is cumbersome. Usually, it is necessary to extract pure α-cellulose from cellulose raw materials. Treat wit...

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): D04H1/4374D04H1/435D04H1/4334D04H1/4258D04H1/492D04H18/04
CPCD04H1/4258D04H1/4334D04H1/435D04H1/4374D04H1/492D04H18/04
Inventor 凌枫
Owner 江苏索富达无纺布有限公司
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