Wet spunlace composite material and manufacturing method

A technology of composite materials and manufacturing methods, which is applied in the direction of chemical instruments and methods, synthetic resin layered products, cellulose plastic material layered products, etc., can solve the problems of high vertical and horizontal fracture strength and limited fracture strength, and achieve fiber protection. Net uniformity, convenient operation, and the effect of improving product physical properties

Active Publication Date: 2021-03-09
HANGZHOU NBOND NONWOVENS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the fracture strength of the material is limited, and the longitudinal and transverse fracture strengths are relatively large.

Method used

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  • Wet spunlace composite material and manufacturing method
  • Wet spunlace composite material and manufacturing method
  • Wet spunlace composite material and manufacturing method

Examples

Experimental program
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Effect test

Embodiment 1

[0012] Embodiment 1: with reference to attached Figure 1-3 . A wet-process spunlace composite material is a double-layer structure, the upper layer is a wet-laid fiber net, and the lower layer is a woven cloth. The wet-laid fiber web is composed of wood pulp or cotton pulp with a weight percentage of 60-100% and ultra-short fibers with a weight percentage of 40-0% and a length of 3-20mm. The ultra-short fibers include: one or both of rayon ultra-short fibers, polyester ultra-short fibers, polylactic acid (PLA) ultra-short fibers, ES ultra-short fibers, polyvinyl alcohol ultra-short fibers, and aramid ultra-short fibers. kind of mix. When the two are mixed, the percentage by weight of one of artificial cellulose ultra-short fibers, polyester ultra-short fibers, polylactic acid (PLA) ultra-short fibers, and aramid ultra-short fibers is 20 to 39% (such as 21%, 22% , 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39 %), the weight percentage o...

Embodiment 2

[0014] Example 2: A method for manufacturing a wet-process spunlace composite material, (1) respectively combining wood pulp or cotton pulp fibers with a weight percentage of 60-100% and ultra-short fibers with a length of 3-20mm and a weight percentage of 40-0% Add water in the unloading tank and mix it into a slurry with a concentration of 1-3%, complete the liquid phase dispersion, and then complete the liquid phase mixing in the batching tank; ultra-short fibers include: artificial cellulose ultra-short fiber, polyester ultra-short fiber, One or a mixture of polylactic acid ultra-short fibers, ES ultra-short fibers, polyvinyl alcohol ultra-short fibers, and aramid ultra-short fibers. When the two are mixed, the weight percentage of one of artificial cellulose ultra-short fiber, polyester ultra-short fiber, polylactic acid (PLA) ultra-short fiber and aramid ultra-short fiber is 20-39%, ES ultra-short fiber, polyester The weight percentage of one of the vinyl alcohol ultra-s...

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Abstract

The invention relates to a wet-process spunlace composite material and a manufacturing method which can fundamentally solve the low strength of common wet-process spunlace nonwoven materials and the large difference in longitudinal and transverse strength. The wet-process spunlace composite material has a double-layer structure. The upper layer is a wet-laid fiber net, and the lower layer is a woven fabric. Advantages: It solves the problem of low strength and large difference in longitudinal and transverse strength of ordinary wet-process spunlace nonwoven materials, improves product physical properties, broadens product application fields, and plays an important role in the promotion and application of wet-process spunlace nonwovens technology significance.

Description

technical field [0001] The invention relates to a wet-process spunlace composite material and a manufacturing method capable of fundamentally solving the low strength of ordinary wet-process spunlace nonwoven materials and the large difference in longitudinal and transverse strengths, and belongs to the technical field of wet-process spunlace nonwovens. Background technique [0002] Wet-laid non-woven fabrics are non-woven fabrics obtained by dehydrating water, fibers and chemical additives in a special former to form fiber webs, which are fixed by physical and chemical methods. Wet-laid nonwovens have the characteristics of random arrangement of fibers, good uniformity, wide range of fibers, and high production speed. However, since the wet-laid nonwovens use ultra-short fibers, the length of the fibers generally selected is below 20mm. Therefore, the range of surface density of the product is low, the breaking strength is relatively low, and the longitudinal and transverse...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/02B32B23/02B32B37/00D21H15/10D21H15/02D21F9/02D21F11/02
CPCB32B5/024B32B5/028B32B5/08B32B5/26B32B37/00B32B2262/02B32B2262/0223B32B2262/0253B32B2262/0269B32B2262/0276B32B2262/04D21F9/02D21F11/02D21H15/02D21H15/10
Inventor 佘卫军
Owner HANGZHOU NBOND NONWOVENS
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