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Fully-degradable compound non-woven for cleaning and manufacturing process thereof

A non-woven fabric and production process technology, which is applied in the field of fully degradable composite non-woven fabric for wiping and its production process, can solve the problems of severe chip shedding and low product strength, and achieve pollution-free, simple structure, and strong oil and water absorption Effect

Active Publication Date: 2017-01-11
DALIAN RUIGUANG NONWOVEN GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce environmental pollution, most of the disposable wipes currently on the market are made of pulp fibers using traditional papermaking techniques. Although it can meet environmental protection requirements, the strength of the product is not high, and the shavings are serious

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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  • Fully-degradable compound non-woven for cleaning and manufacturing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A production process for fully degradable composite nonwovens for wiping, comprising the following steps:

[0030] S1. Production of composite fiber layer 2: Use tencel with a length of 10mm and pulp fibers with a length of 2mm to form a cellulose fiber layer by using a wet-laid method in a ratio of 3:7, and then pump it under negative pressure Absorption and dehydration to obtain a gram weight of 40-45g / m 2 Composite fiber layer; when wet-laid, the concentration of the web-forming slurry is controlled at 1%-5%, and the web-forming speed is 200m / min; the output web curtain is dehydrated by 6 negative pressure suctions, and The efficiency of the negative pressure suction fan used for each negative pressure suction dehydration is controlled at 20%, 40%, 60%, 50%, 50%, 20% respectively.

[0031] S2. Production of spunbonded nonwoven fabric layer 1: Polylactic acid or chitosan is used as raw material, which is heated and melt-blown by a screw extruder, metered by a meterin...

Embodiment 2

[0037] A production process for fully degradable composite nonwovens for wiping, comprising the following steps:

[0038] S1. Production of composite fiber layer 2: Use tencel with a length of 10mm and pulp fibers with a length of 2mm to form a cellulose fiber layer by using a wet-laid method in a ratio of 4:6, and then pump it under negative pressure Absorption and dehydration to obtain a gram weight of 25-33g / m 2 Composite fiber layer; when wet-laid, the concentration of the web-forming slurry is controlled at 1%-5%, and the web-forming speed is 200m / min; the output web curtain is dehydrated by 6 negative pressure suctions, and The efficiency of the negative pressure suction fan used for each negative pressure suction dehydration is controlled at 20%, 30%, 50%, 50%, 40%, 20% respectively.

[0039] S2. Production of spun-bonded nonwoven fabric layer 1: Polylactic acid or chitosan is used as raw material, which is heated and melt-blown by a screw extruder, metered by a meteri...

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Abstract

A fully-degradable compound nonwoven for cleaning and the manufacturing process thereof consists of a spunbond nonwoven layer and a composite fiber layer; the spunbond nonwoven layer is a degradable spunbond nonwoven layer; the composite fiber layer is a reticular fiber layer formed through wet-laying, and the spunbond nonwoven layer and composite fiber layer are spunlaced into one. Structure and manufacturing process of the invention are simple. The degradable spunbond nonwoven layer and composite fiber layer are spunlaced together; after oven drying and hot rolling, the compound is processed to a nonwoven product with preset patterns on the surface without dropping scraps, wherein the degradable spunbond nonwoven layer can make the product have stronger intensity. The adhesive, Tencel or cotton fiber in the composite fiber layer can be intermeshed during spunlace; in the meanwhile, fiber pulp will also be planted in between the two layers, thereby consolidating the two layers to a net and making the product have strong oil and water absorptivity as well as strong tear resistance.

Description

technical field [0001] The invention relates to the field of wiping articles, in particular to a fully degradable composite nonwoven fabric for wiping and a production process thereof. Background technique [0002] With the continuous improvement of people's living standards, various nonwoven products are gradually penetrating into all aspects of people's life and work. That is, while the disposable wipes made of non-woven fabrics bring convenience to people's production and life, the problem of environmental pollution is also prominent. In order to reduce environmental pollution, most of the disposable wipes currently on the market are made of pulp fibers using traditional papermaking techniques. Although it can meet environmental protection requirements, the strength of the product is not high, and the shavings are serious. Contents of the invention [0003] The purpose of the present invention is to provide a fully degradable composite nonwoven fabric for wiping that h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B5/02B32B5/26B32B9/04B32B5/06B32B33/00B32B37/00B32B38/18
CPCB32B5/022B32B5/028B32B5/06B32B5/26B32B9/047B32B33/00B32B37/00B32B38/1808B32B2250/02B32B2250/20B32B2262/02B32B2262/04B32B2307/5825B32B2307/716B32B2307/728B32B2432/00
Inventor 谷源明
Owner DALIAN RUIGUANG NONWOVEN GROUP
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