A kind of preparation method of functional regenerated cellulose fiber

A technology for regenerated cellulose and cellulose, applied in the direction of single-component cellulose rayon, cellulose/protein conjugated rayon, and fiber chemical characteristics, can solve problems such as technology to be developed, and achieve method introduction, highly operable effect

Active Publication Date: 2018-11-23
山东银鹰化纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the preparation of regenerated cellulose composite fibers by solution blending is still rarely a technology of mixing cellulose solution, cellulose derivative solution and functional powder to make mother liquor, and related technologies need to be developed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of antibacterial regenerated cellulose fiber, comprising the steps of:

[0033]Adopt cellulose solvent N-methylmorpholine-N-oxide oxide (NMMO) / water (wherein the proportion that water accounts for is 14.8wt%) dissolving degree of polymerization is 200, and the cellulose acetate of total esterification degree is 2.3, prepares A functional powder carrier solution with a cellulose acetate concentration of 6wt% is obtained; then the silver antibacterial functional powder and the carrier with an average particle size of less than 1 μm and insoluble in the coagulant used in the coagulation step of the cellulose solvent and the fiber are obtained The solution is stirred and mixed with a screw extruder, wherein the stirring rate is 100 rpm, the stirring time is 0.5 hours, and the mass ratio of cellulose acetate to silver functional powder is 1:1, and the antibacterial functional mother liquid is obtained; Finally, inject the antibacterial functional mother ...

Embodiment 2

[0036] A preparation method of antibacterial regenerated cellulose fiber, comprising the steps of:

[0037] Adopt cellulose solvent N-methylmorpholine-N-oxide oxide (NMMO) / water (wherein the proportion that water accounts for is 14.4wt%) dissolving degree of polymerization is 1000, and total esterification degree is the cellulose acetate propionate of 2.5 , to prepare a functional powder carrier solution with a concentration of cellulose acetate propionate of 15wt%; then the copper functional powder with an average particle size of less than 1 μm and insoluble in the coagulant used in the coagulation step of the cellulose solvent and the fiber The body and the carrier solution are stirred and mixed with a kneader, wherein the stirring rate is 300 rpm, the stirring time is 1 hour, and the mass ratio of cellulose acetate propionate to copper functional powder is 10:1, and the antibacterial function is obtained. Antibacterial mother liquor; finally, the antibacterial functional m...

Embodiment 3

[0040] A preparation method of antibacterial regenerated cellulose fiber, comprising the steps of:

[0041] Using cellulose solvent 1-butyl-3-methylimidazolium chloride salt to dissolve cellulose acetate butyrate with a degree of polymerization of 600 and a total degree of esterification of 2.33 to prepare a functional powder with a concentration of cellulose acetate butyrate of 7 wt%. Carrier solution; then the zinc functional powder with an average particle size of less than 1 μm, which is insoluble in the coagulant used in the coagulation step of the cellulose solvent and the fiber, and the carrier solution are stirred and mixed with a screw extruder, and the stirring rate is The stirring time is 0.6 hours at 200 rpm, the mass ratio of cellulose acetate butyrate to zinc functional powder is 5:1, and the antibacterial functional mother liquor is prepared; finally, the antibacterial functional mother liquor is added online Inject into the cellulose spinning solution with a de...

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Abstract

The invention relates to a preparation method of functional regeneration cellulose fiber. The method comprises the following steps that a cellulose solvent is used for dissolving cellulose ester; a functional powder carrier solution is prepared; a strong shearing effect is provided through stirring equipment, so that functional powder and the carrier solution are mixed to prepare functional mother liquid; the functional mother liquid is injected into cellulose spinning liquid in an online adding mode; the spinning liquid is formed into the functional regeneration cellulose fiber through extrusion and solidification forming. The preparation method can solve the problems that in the traditional method, the mixing of the functional powder and the spinning liquid is difficult, and the dispersion is not uniform; the used mother liquid carrier is formed along with fiber coagulation; no additional auxiliary agents enter a solvent and coagulating bath system. The forming method is simple, flexible and efficient; the production of the functional regeneration cellulose fiber can be realized on the basis of the ordinary production line.

Description

technical field [0001] The invention relates to the field of regenerated fibers, in particular to a method for preparing functional regenerated cellulose fibers. Background technique [0002] Regenerated cellulose fiber is a cellulose fiber prepared by regeneration from natural cellulose. The raw material of regenerated cellulose fiber can be regenerated, has good hygroscopicity and high wearing comfort, and is the main type of chemical fiber. Since the melting point of cellulose is higher than the decomposition temperature, the production of regenerated cellulose fibers mainly adopts the method of wet spinning or dry spray wet spinning. According to the difference of production process, commercialized regenerated cellulose fibers mainly include viscose fiber, lyocell fiber, cupro fiber and so on. [0003] With the development of regenerated cellulose fiber technology, functional regenerated cellulose fiber has become a new development direction. Among them, adding functi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/02D01F2/00D01F1/10D01F1/07
CPCD01F1/07D01F1/103D01F2/00D01F8/02
Inventor 王华平张玉梅王朝生陈烨
Owner 山东银鹰化纤有限公司
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