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Method and equipment preparing viscose filament non-woven fabric through wet spinning technology

A filament non-woven fabric and viscose fiber technology, which is applied in spinning solution preparation, wet spinning method, fiber processing and other directions, can solve the problem that the properties of viscose fiber cannot be effectively reflected, is not suitable for popularization and application, and has a narrow application field. and other problems, to achieve the effect of improving washing effect, better effect and improving production efficiency

Active Publication Date: 2016-03-16
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current traditional production method of viscose fiber nonwovens is to adopt multiple short fibers including viscose fiber as disclosed in CN103352318A to be carded into a web for reinforcement or as disclosed in CN103320968A to directly lay a net with viscose filaments for reinforcement. The non-woven fabric produced by carding into a web is thick, has poor performance, and has a narrow application field. Due to the mixing of other fibers, the performance of viscose fibers cannot be effectively reflected, and the method of laying viscose fiber filaments, Its cost is too high, not suitable for popularization and application

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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  • Method and equipment preparing viscose filament non-woven fabric through wet spinning technology
  • Method and equipment preparing viscose filament non-woven fabric through wet spinning technology
  • Method and equipment preparing viscose filament non-woven fabric through wet spinning technology

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Effect test

preparation example Construction

[0051] (1), preparation of spinning dope: the preparation process is composed of dipping, pressing, yellowing, post-dissolving, filtering, and degassing processes to obtain spinning dope for producing viscose fiber;

[0052] (2) Coagulation reaction of stock solution: wet forming is adopted, the stock solution is extruded from the spinneret hole to form a thin stream, and the spinning stock solution is directly contacted with the coagulant in the coagulation bath for spinning;

[0053] (3) Viscose fiber forming: the thin stream of stock solution is solidified into primary fibers, which are exported by godet rollers;

[0054] (4), drafting: Stretch the primary fiber to improve the mechanical properties of the fiber;

[0055] (5) Neutralization and washing: neutralize and wash the as-spun fiber to neutralize the acid and alkali in the fiber to achieve neutrality;

[0056] Non-woven fabric forming process

[0057] (6) Laying: The washed viscose filaments are evenly dispersed an...

Embodiment 1

[0063] Such as figure 2 , 3, 4, 5, and 6, a device for preparing viscose filament nonwoven fabrics based on wet spinning technology is composed of wet spinning device 1 and nonwoven fabric forming device 2, and the wet spinning The silk device 1 consists of a coagulation bath container 4 with a coagulation bath 3, a filter 6 with a spinning stock solution inlet 5, the spinning stock solution enters the filter 6 through the spinning stock solution inlet 5, connects the filter 6 and extends into the coagulation The liquid inlet pipe 8 with the spinneret 7 in the bath container 4, the godet roll 9 and the washing device 10 for connecting the spinning place of the spinneret 7, and the washing device 10 can adopt ultrasonic cleaning or pure water commonly used in the art. Spray cleaning, the forming device 2 includes a clustering and splitting device 13 for concentrating and dispersing the viscose fiber tow 11, the clustering and splitting device 13 includes a pair of mutually en...

Embodiment 2

[0066] In order to meet the actual production needs, a winding mechanism 32 can be set at the output end of the web forming machine web curtain 22, and the filament fiber web 20 on the web forming machine web curtain 22 is dried by the drying mechanism 24 and then rolled. Mechanism 32 is directly wound and packaged. Between the godet roll 9 and the bunching and splitting device 13, a drafting roll for improving the strength of the viscose fiber tow 11 can also be selected, and the drafting roll is composed of a main drafting roll 33 and a secondary drafting roll 34 .

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

The invention discloses a method and equipment preparing viscose filament non-woven fabric through wet spinning technology; the method comprises the following steps: 1, spinning technology, spinning dope preparation; 2, spinning soup solidification reaction; 3, viscose formation; 4, washing; 5, drying: non-woven fabric formation technology; 6, lapping: uniformly scattering and lapping dried primary viscose fiber beams on a lapper web curtain, thus forming intersecting stacked filament fiber web; 7, spunlace reinforcement; 8, baking; 9, winding. The equipment comprises a wet spinning device and a non-woven fabric forming device; related steps in a conventional wet spinning technology can be omitted; semi-finish viscose filament can be directly used for non-woven fabric production; in the prior art, finished fiber filaments are secondarily used for non-woven fabric production; the novel method can break the conventional concept, can effectively save production cost, can reduce environment pollution in the production process, and can improve production efficiency.

Description

technical field [0001] The invention belongs to the technical field, and in particular relates to a process and equipment for preparing viscose filament non-woven fabrics based on wet spinning technology. Background technique [0002] Non-woven fabric (English name: NonWovenFabric or Nonwovencloth), also known as non-woven fabric, is a kind of non-woven fabric, which is composed of oriented or random fibers. Combustion-supporting, easy to decompose, non-toxic and non-irritating, rich in color, low in price, recyclable and so on. For example, polypropylene (pp material) pellets are mostly used as raw materials, which are produced by continuous one-step process of high-temperature melting, spinning, laying, and hot-pressing coiling. It is called cloth because of its appearance and certain properties. Because it is a fabric that does not need spinning and weaving, it is just oriented or random arrangement of short textile fibers or filaments to form a web structure, and then ...

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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IPC IPC(8): D04H1/28D04H1/724D04H1/492D01D5/06D01D1/02D01D1/10
CPCD01D1/02D01D1/10D01D1/103D01D1/106D01D5/06D04H1/28D04H1/492D04H1/724
Inventor 马建伟陈韶娟郭晓青
Owner QINGDAO UNIV
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