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Degradable composite non-woven fabric and manufacturing method thereof

A manufacturing method, technology of non-woven fabrics, applied in the direction of chemical instruments and methods, synthetic resin layered products, lamination, etc.

Pending Publication Date: 2021-10-26
XIAMEN YANJAN NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of degradable wiping composite non-woven fabric and its manufacture method, overcome the defective of existing product and production method

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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  • Degradable composite non-woven fabric and manufacturing method thereof
  • Degradable composite non-woven fabric and manufacturing method thereof
  • Degradable composite non-woven fabric and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 , figure 2 As shown, the viscose fiber is passed through the carding machine A1 to be carded into a viscose fiber web 11, and the middle layer fiber web 13 composed of degradable water-absorbing fibers is formed through the nozzle B1 under the action of the auxiliary airflow.

[0026] Using the melt-blown process, the polylactic acid is heated and melted, and the hot air flow is used to blow the melt jets from the spinnerets C1 and C1' into very fine fiber bundles, and the melt-blown fiber web formed with the airflow 12 and 12 ', and intersect with the two sides of the middle layer fiber web 13 made of viscose fibers, forming both sides are melt-blown fiber web layers 12 and 12 ', and the middle layer fiber web 13 is a viscose fiber web 11. The multi-layer structure fiber web, wherein, the melt-blown fiber is a degradable single-component polylactic acid fiber; the weight of the viscose fiber accounts for 75% of the total weight of the composite non-w...

Embodiment 2

[0064] Such as image 3 , Figure 4 As shown, the wood pulp fiber 22 passes through the opening roller E2 to loosen it, and passes through the nozzle B2 under the action of the auxiliary airflow to form an intermediate fiber web 24 composed of wood pulp fibers.

[0065] The degradable polybutylene adipate / terephthalate (PBAT) is heated and melted by the melt-blown process, and the thin streams of melt ejected from the spinneret C2 and C2' are blown away by the hot air flow Become very thin fiber bundles, the melt-blown fiber webs 23 and 23' formed with the air flow, and meet with the two sides of the middle layer fiber web 24 composed of wood pulp fibers, forming both sides is a melt-blown fiber web layer 23 and 23', the middle layer fiber web 24 is a multi-layer structure fiber web composed of wood pulp fibers, wherein the melt-blown fibers are degradable polyadipate / butylene terephthalate (PBAT) fibers, which can be Degradable single-component melt-blown fibers can also be...

Embodiment 3

[0072] Such as Figure 5 , Figure 6 As shown, the viscose fiber is carded into a viscose fiber web 31 by the carding machine A3, and the wood pulp fiber 32 is opened and loosened by the opening roller E3, and mixed with the viscose fiber web 31 Under the effect of auxiliary air flow, the middle layer fiber web 34 formed by blending viscose fiber and wood pulp fiber is formed through the nozzle B3.

[0073] Using the melt-blown process, 50% polylactic acid and 50% polybutylene adipate / terephthalate (PBAT) are heated and melted separately, and the hot air flow is used to spray the polylactic acid from the spinneret C2 and C2' The melt stream is blown into very fine fiber bundles, and the melt-blown fiber webs 33 and 33' formed with the air flow are mixed with the two sides of the middle layer fiber web 34 composed of viscose fiber and wood pulp fiber The two sides intersect each other to form melt-blown fiber web layers 33 and 33' on both sides, and the middle layer fiber web...

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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Abstract

A degradable composite non-woven fabric is of a layered structure, an upper surface layer and a lower surface layer of the degradable composite non-woven fabric are mainly composed of degradable melt-blown fibers, a middle fiber layer is mainly composed of degradable water-absorbing fibers, the weight of the middle fiber layer accounts for more than 65% of the total weight of the composite non-woven fabric, and fiber interweaving and interpenetrating areas are arranged between the adjacent layers of the upper surface layer, the lower surface layer and the middle fiber layer. Compared with a traditional wiping non-woven fabric waste incineration and cremation treatment mode, the degradable wiping non-woven fabric can be subjected to waste treatment through a landfill method and is degraded in soil, and generated carbon dioxide directly enters soil organic matter or is absorbed by plants and cannot be discharged into the atmosphere, so that the greenhouse effect cannot be caused.

Description

technical field [0001] The invention relates to the field of non-woven fabrics, in particular to a degradable non-woven fabric for wiping and a manufacturing method thereof for personal care and infant care. Background technique [0002] Non-woven fabrics for wiping are favored by consumers because they are quite convenient to carry and store, and are easy to use. At present, non-woven fabrics for wiping can be spunlace non-woven products, or melt-blown non-woven fabrics or spunbonded non-woven fabrics. Compared with the traditional cloth wipes, the production method is convenient, the price is low, and it can be used wet or dry. It is difficult to degrade and rot in the natural environment, and seriously pollutes the environment. This non-degradable polymer mixed with the soil can affect the absorption of water and nutrients by crops, resulting in a reduction in crop yield; it takes up land and takes hundreds of years to degrade when it is buried. Therefore, with the incr...

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 Applications(China)
IPC IPC(8): B32B5/02B32B5/08B32B5/26B32B37/06B32B27/02B32B27/12B32B9/00B32B9/04B32B27/36
CPCB32B5/022B32B5/08B32B5/26B32B37/06B32B2262/0276B32B2262/06B32B2262/062B32B7/08B32B5/268B32B2262/0284B32B2305/20B32B2307/716
Inventor 巫朝胜李世煌陈永恭
Owner XIAMEN YANJAN NEW MATERIAL CO LTD
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