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A kind of manufacturing method of high tear strength non-woven fabric

A technology with high tear strength and manufacturing method, applied in the direction of textiles and papermaking, textile material processing, non-woven fabrics, etc., can solve the problems of low tear strength and inability to apply shoe materials, achieve good transparency, improve fabric The problem of surface hardness and the effect of improving tear resistance

Active Publication Date: 2020-08-14
杭州绿基无纺布有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the tear strength of ordinary needle-punched non-woven fabrics is low, so it cannot be used in occasions that require higher tear strength, such as shoe materials and automotive leather.

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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  • A kind of manufacturing method of high tear strength non-woven fabric
  • A kind of manufacturing method of high tear strength non-woven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Preparation of non-woven fabric:

[0034] Using 100% polyester staple fiber as a raw material, using a conventional needle punching production process, the polyester staple fiber is opened, carded, laid, and needle punched in sequence to prepare a needle punched non-woven fabric with a weight of 250 g / square.

[0035] (2) Impregnation:

[0036] Preparation of impregnating solution: including the following composition by mass percentage

[0037] Acrylate 10~15%

[0038] Amino modified silicone oil softener 0.1~0.5%

[0039] The balance is water.

[0040] Impregnation process: The prepared needle-punched non-woven fabric is passed through the impregnation solution at a uniform speed of 9 m / min, so that the needle-punched non-woven fabric is fully infiltrated in the impregnation solution.

[0041] (3) Post-processing:

[0042] The impregnated needle-punched non-woven fabric is rolled, pre-dried, stentered, and dried at a speed of 9 m / min, and the surface is ironed and calendered to ...

Embodiment 2

[0047] Using the preparation method of Example 1, adjust the acrylate content and test its effect on the tear strength of the product.

[0048] Table 1. The effect of impregnation liquid dosage on product performance

[0049]

[0050] As shown in Table 1: The non-woven fabrics treated with different impregnation liquids and the non-woven fabric samples without impregnation treatment are tested with the textile electronic strength tester, and it is found that the conventional 250 g / square non-woven fabric is torn The tear strength is 6-8 kgf. The tear strength of the non-woven fabric impregnated with acrylate can reach more than 10 kgf, and the increase in tear strength is greater than 20%. The non-woven fabric treated with the impregnation liquid can be suitable for shoes Materials, ball leather and other applications that require high tear strength.

[0051] The amount of acrylate has a significant impact on the tear strength performance of the product. As the amount of acrylate in...

Embodiment 3

[0053] Using the preparation method of Example 1, adjust the amount of silicone oil softener and test its effect on the tear strength of the product.

[0054] Table 2. The effect of silicone oil softener dosage on product performance

[0055] Serial number Silicone oil softener dosage Acrylate content Product tear strength Example 3-10.1％12％ 8-9 kgf Example 3-20.2％12％ 10 kgf Example 3-30.3％12％ 10 kgf Example 3-40.4％12％ 9-10 kgf Example 3-50.5％12％ 9-10 kgf Example 3-6 0.6％12％ 9-10 kgf

[0056] As shown in Table 2: The amount of silicone oil softener has a greater impact on the tear strength performance of the product. With the increase in the amount of acrylate, the tear strength performance of the product is significantly improved, but when the content exceeds 0.2%, the tear strength performance The improvement is not obvious. From the perspective of overall product performance and production cost, the best dosage is 0.2%.

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Abstract

The invention belongs to the technical field of nonwoven fabric preparation and discloses a high-tear-strength nonwoven fabric manufacturing method. The method is characterized by including that acrylic ester and a silicon oil softening agent are mixed according to a certain ratio and used for impregnation treatment of nonwoven fabrics, and the impregnated nonwoven fabrics are subjected to rolling, pre-drying, stentering and repeated drying. A prepared nonwoven fabric product has advantages that due to high transparency, stability and mechanical properties, tear resistance of the nonwoven fabrics can be effectively improved through an aftertreatment process; on the other hand, by adding of the softening agent and adoption of the aftertreatment process, the problem of cloth hardening causedby acrylic ester can be effectively improved, and the nonwoven fabrics are fluffy and soft to touch. The prepared nonwoven fabrics are excellent in both tear strength and softness, and application ofthe nonwoven fabrics is greatly expanded.

Description

Technical field: [0001] The invention relates to the technical field of non-woven fabric production, in particular to a method for manufacturing a needle punched non-woven fabric with high tear strength. Background technique: [0002] Non-woven fabric, also known as non-woven fabric, is composed of oriented or random fibers. It is called cloth because of its appearance and certain properties. [0003] Needle-punched non-woven fabric is a kind of non-woven fabric, which is generally made of polyester, polypropylene staple fiber and other raw materials, and is made by multiple needle punching and proper hot rolling. [0004] Needle-punched non-woven fabrics are widely used in filter materials, geotextiles, clothing cotton, artificial leather base fabrics, automotive sound insulation materials, etc. according to different processes and weights. However, the tear strength of ordinary needle punched non-woven fabrics is low and cannot be used in shoe materials, automobile leathers and ot...

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 Patents(China)
IPC IPC(8): D04H1/435D06M15/263D06B15/00D06M15/643D06M101/32
CPCD04H1/435D06B15/00D06M15/263D06M15/643D06M15/6436D06M2101/32D06M2200/50
Inventor 黄川
Owner 杭州绿基无纺布有限公司