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Preparation method and processing equipment of a low-temperature water-soluble polyvinyl alcohol nonwoven fabric

A technology of water-soluble polyvinyl alcohol and non-woven fabrics, which is applied in non-woven fabrics, complete sets of equipment for the production of artificial threads, textiles and papermaking, etc. It can solve problems such as difficult cutting, easy gelation, and difficult transportation, and achieve low cost , avoid phase separation, and reduce environmental pollution

Active Publication Date: 2019-05-07
大连天马可溶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems in the prior art that polyvinyl alcohol nonwovens are easy to gel when exposed to water, difficult to cut, and difficult to transport, a preparation method and processing equipment for low-temperature water-soluble polyvinyl alcohol nonwovens are provided

Method used

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  • Preparation method and processing equipment of a low-temperature water-soluble polyvinyl alcohol nonwoven fabric
  • Preparation method and processing equipment of a low-temperature water-soluble polyvinyl alcohol nonwoven fabric
  • Preparation method and processing equipment of a low-temperature water-soluble polyvinyl alcohol nonwoven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Wash and swell polyvinyl alcohol with specifications 0388, 0588, and 1788 with 2 times the mass of ice water for 2 hours.

Embodiment 2

[0026] Wash and swell polyvinyl alcohol with specifications 0388, 0588, and 1788 with 3 times the mass of ice water for 2 hours.

Embodiment 3

[0028] Prepare the plasticizer according to the following formula

[0029]

[0030]

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PUM

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Abstract

The invention relates to the field of polyvinyl alcohol non-woven fabric, and especially relates to a manufacturing method and a processing device for a low-temperature water-soluble polyvinyl alcohol non-woven fabric. The device comprises a feeding opening, a screw extruder, a melt filter, a spinning manifold, a combined stretching slit, a silk reciprocator, an air suction device, and a reinforcing device. Through water plasticized melt-spinning, the fabric is directly formed, a manufacturing process of the polyvinyl alcohol non-woven fabric is greatly shortened, cost is reduced, and environmental pollution is reduced. The combination of the process and the device preferably solves a technical problem of low-temperature water-soluble polyvinyl alcohol non-woven fabric, and a polyvinyl alcohol non-woven fabric product whose water solution temperature is 20-40 DEG C is successfully manufactured. The method and the device are simple in process and low in cost, and are suitable for industrial production.

Description

technical field [0001] The invention relates to the field of polyvinyl alcohol nonwoven fabrics, in particular to a preparation method and processing equipment for low-temperature water-soluble polyvinyl alcohol nonwoven fabrics. Background technique [0002] Polyvinyl alcohol fiber is currently the only water-soluble synthetic fiber that can be produced on a large scale in the world. Its non-woven products have a wide range of applications in medical and health care, embroidery, clothing and other fields. Generally, polyvinyl alcohol nonwoven fabrics are made of polyvinyl alcohol short fibers as raw materials, and are manufactured through carding, web forming, and reinforcement. Polyvinyl alcohol short fibers are also mostly obtained by wet spinning. Therefore, the traditional polyvinyl alcohol nonwoven technology has complex processing and high cost; the preparation process of polyvinyl alcohol fibers is complicated and polluted; the product has a high melting point and i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H3/007D01D13/00D01D1/09D01D10/02
CPCD01D1/09D01D10/02D01D13/00D04H3/007D10B2321/06
Inventor 郭静刘闻徐德增刘建为
Owner 大连天马可溶制品有限公司
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