CN110938884A - Wet spinning preparation method of bamboo fiber yarns - Google Patents

Wet spinning preparation method of bamboo fiber yarns Download PDF

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Publication number
CN110938884A
CN110938884A CN201911278658.8A CN201911278658A CN110938884A CN 110938884 A CN110938884 A CN 110938884A CN 201911278658 A CN201911278658 A CN 201911278658A CN 110938884 A CN110938884 A CN 110938884A
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China
Prior art keywords
bamboo
spinning
wet spinning
cellulose
alginate
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CN201911278658.8A
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Chinese (zh)
Inventor
杨双建
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JIESHOU SHUANGXIN TEXTILE Co Ltd
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JIESHOU SHUANGXIN TEXTILE Co Ltd
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Priority to CN201911278658.8A priority Critical patent/CN110938884A/en
Publication of CN110938884A publication Critical patent/CN110938884A/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/02—Preparation of spinning solutions
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/06—Feeding liquid to the spinning head
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/06—Wet spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Artificial Filaments (AREA)

Abstract

The invention discloses a wet spinning preparation method of bamboo fiber yarns, which comprises the following steps: (1) preparing a spinning solution; (2) metering the spinning stock solution by a metering pump, forming a spinning trickle through a spinning nozzle, feeding the spinning trickle into a coagulating bath, and carrying out coagulation treatment; (3) wet spinning is carried out under the conditions that the drafting is 5-10 percent and the circulation amount of a coagulating bath is 800-900L/h, and then the bamboo fiber yarns are obtained after water washing, water drafting, drying, sizing and winding; the bamboo fiber prepared by the wet spinning preparation method of the bamboo fiber yarn provided by the invention has excellent tearing resistance and surface smoothness.

Description

Wet spinning preparation method of bamboo fiber yarns
Technical Field
The invention belongs to the technical field of spinning, and particularly relates to a wet spinning preparation method of bamboo fiber yarns.
Background
Bamboo fiber is cellulose fiber extracted from naturally growing bamboo, and the fifth most natural fiber is cotton, hemp, wool and silk. The bamboo fiber has the characteristics of good air permeability, instant water absorption, strong wear resistance, good dyeing property and the like, and has the functions of natural antibiosis, bacteriostasis, mite removal, deodorization and ultraviolet resistance.
China is a large-population country, the demand for clothes is more and more, the clothes are more and more extensive, at present, various clothes in existence are various in styles, and the performance of the clothes is more and more required for people to wear comfortable clothes, so that the bamboo fiber clothes are more and more popular with people.
The bamboo fiber prepared by the existing process has a rough surface and general breaking strength, so that the bamboo fiber is easy to break in the spinning process, the rejection rate is increased, and the cost is increased.
Disclosure of Invention
The invention is realized by the following technical scheme.
A wet spinning preparation method of bamboo fiber yarns comprises the following steps:
(1) preparing a spinning solution: adding bamboo composite cellulose into alginate/N-methylmorpholine oxide solution with the mass 10 times of that of the bamboo composite cellulose, heating to 70-75 ℃, keeping the temperature and stirring for 30min, then adding an organic-inorganic compound, continuing to stir for 30-35min, then adding 1-ethyl-3-methylimidazole acetate with the mass 10-12% of that of the alginate/N-methylmorpholine oxide solution, adjusting the temperature to 60-65 ℃, keeping the temperature and stirring for 1 hour, and keeping the temperature to obtain the bamboo composite cellulose;
(2) metering the spinning stock solution by a metering pump, forming a spinning trickle through a spinning nozzle, feeding the spinning trickle into a coagulating bath, and carrying out coagulation treatment;
(3) wet spinning is carried out under the conditions that the drafting is 5-10 percent and the circulation amount of the coagulating bath is 800-900L/h, and then the bamboo fiber yarns are obtained after water washing, water drafting, drying, sizing and winding.
The bamboo composite cellulose in the step (1) is obtained by mixing bamboo cellulose and cellulose xanthate according to the mass ratio of 10: 1.
In the step (1), the alginate/N-methylmorpholine oxide solution contains 12.5% by mass of alginate, 55% by mass of N-methylmorpholine oxide and the balance of water.
The alginate is potassium alginate.
The organic-inorganic compound in the step (1) is obtained by compounding sodium maleate and stearic acid according to the mass ratio of 3: 1.
The adding amount of the organic-inorganic compound is 6.5 percent of the mass of the bamboo composite cellulose.
And (3) the spinning nozzle in the step (2) is 10000 holes.
The temperature of the coagulation bath in the step (2) is 40-45 ℃.
According to the technical scheme, the beneficial effects of the invention are as follows:
the invention provides a wet spinning preparation method of bamboo fiber, the prepared bamboo fiber has excellent tear resistance strength and surface smoothness, the bamboo composite cellulose is mixed with alginate/N-methylmorpholine oxide solution, the bamboo composite cellulose enters the alginate/N-methylmorpholine oxide solution, a complex can be formed in a non-crystalline area of the cellulose, the bamboo composite cellulose can more rapidly permeate into a crystalline area through the promoting combination effect of cellulose xanthate added in the bamboo composite cellulose, hydrogen bonds among bamboo cellulose macromolecules are destroyed, the aggregation state structure of the bamboo cellulose is destroyed, the bamboo cellulose is dissolved in the alginate/N-methylmorpholine oxide solution, potassium alginate and 1-ethyl-3-methylimidazole acetate are added to play a complexing role in a spinning solution system, the viscosity of the spinning solution can be adjusted, the spinning solution can be spun in the process, the yarn discharging speed is stable, the diffusion speed in a coagulating bath is well controlled, so that the regenerated fibers can be stably formed, the number of grooves is reduced, the smoothness of the surfaces of the regenerated fibers is greatly improved, and meanwhile, the density of the regenerated fibers can be promoted by a certain connecting and crosslinking effect of an inorganic-organic compound, the arrangement of micro fibers in the regenerated fibers is more compact, and the tearing resistance strength of the regenerated fibers is remarkably improved.
Detailed Description
The invention provides a wet spinning preparation method of bamboo fiber yarns, and a person skilled in the art can appropriately improve process parameters by referring to the content. It is expressly intended that all such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the scope of the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.
A wet spinning preparation method of bamboo fiber yarns comprises the following steps:
(1) preparing a spinning solution: adding bamboo composite cellulose into alginate/N-methylmorpholine oxide solution with the mass 10 times of that of the bamboo composite cellulose, heating to 70-75 ℃, keeping the temperature and stirring for 30min, then adding organic-inorganic compound, continuing to stir for 30-35min, then adding 1-ethyl-3-methylimidazole acetate with the mass 10-12% of that of the alginate/N-methylmorpholine oxide solution, adjusting the temperature to 60-65 ℃, keeping the temperature and stirring for 1 h, keeping the temperature, and obtaining the bamboo composite cellulose by mixing the bamboo composite cellulose with the alginate/N-methylmorpholine oxide solution, enabling the bamboo composite cellulose to enter the alginate/N-methylmorpholine oxide solution, forming a complex in a non-crystalline area of the cellulose, and promoting the binding effect of cellulose xanthate added into the bamboo composite cellulose, can more quickly permeate into a crystallization area to destroy hydrogen bonds among macromolecules of the bamboo cellulose, thereby destroying the aggregation structure of the bamboo cellulose, dissolving the bamboo cellulose into alginate/N-methylmorpholine oxide solution, regulating the viscosity of spinning solution by adding complexation of potassium alginate and 1-ethyl-3-methylimidazolium acetate in the spinning solution system, stabilizing the spinning solution in the spinning process, controlling the diffusion speed in a coagulation bath extremely well, stably forming regenerated fibers, reducing the number of grooves, greatly improving the smoothness of the surface of the regenerated fibers, and promoting the compactness of the regenerated fibers by certain connection crosslinking effect of an inorganic-organic compound, the arrangement of the micro-fibers in the regenerated fiber becomes more compact, and the tearing resistance strength of the regenerated fiber is obviously improved;
(2) metering the spinning stock solution by a metering pump, forming a spinning trickle through a spinning nozzle, feeding the spinning trickle into a coagulating bath, and carrying out coagulation treatment;
(3) wet spinning is carried out under the conditions that the drafting is 5-10 percent and the circulation amount of the coagulating bath is 800-900L/h, and then the bamboo fiber yarns are obtained after water washing, water drafting, drying, sizing and winding.
The bamboo composite cellulose in the step (1) is obtained by mixing bamboo cellulose and cellulose xanthate according to the mass ratio of 10: 1.
In the step (1), the alginate/N-methylmorpholine oxide solution contains 12.5% by mass of alginate, 55% by mass of N-methylmorpholine oxide and the balance of water.
The alginate is potassium alginate.
The organic-inorganic compound in the step (1) is obtained by compounding sodium maleate and stearic acid according to the mass ratio of 3: 1.
The adding amount of the organic-inorganic compound is 6.5 percent of the mass of the bamboo composite cellulose.
And (3) the spinning nozzle in the step (2) is 10000 holes.
The temperature of the coagulation bath in the step (2) is 40-45 ℃.
For further understanding of the present application, the following describes a method for preparing bamboo fiber filaments by wet spinning, which is provided by the present application, with reference to the following examples:
example 1
The wet spinning preparation method of the bamboo fiber comprises the following steps:
(1) preparing a spinning solution: adding bamboo composite cellulose into potassium alginate/N-methylmorpholine oxide solution with the mass 10 times of that of the bamboo composite cellulose, heating to 70 ℃, keeping the temperature and stirring for 30min, then adding an organic-inorganic compound, continuously stirring for 30min, then adding 1-ethyl-3-methylimidazolium acetate with the mass 10% of that of the alginate/N-methylmorpholine oxide solution, adjusting the temperature to 60 ℃, keeping the temperature and stirring for 1 h, and keeping the temperature to obtain the bamboo composite cellulose, wherein the bamboo composite cellulose is obtained by mixing bamboo cellulose and cellulose xanthate according to the mass ratio of 10:1, the alginate mass fraction in the potassium alginate/N-methylmorpholine oxide solution is 12.5%, the N-methylmorpholine oxide mass fraction is 55%, the balance is water, and the organic-inorganic compound is obtained by compounding sodium maleate and stearic acid according to the mass ratio of 3:1, the adding amount of the organic-inorganic compound is 6.5 percent of the mass of the bamboo composite cellulose;
(2) metering the spinning stock solution by a metering pump, forming spinning trickle through a 10000-hole spinning head, feeding the spinning trickle into a coagulation bath, and performing coagulation treatment, wherein the temperature of the coagulation bath is 40 ℃;
(3) wet spinning is carried out under the conditions that the drafting is 5 percent and the circulating amount of a coagulating bath is 800L/h, and then the bamboo fiber yarns are obtained after washing, water-drawing, drying, shaping and winding, wherein the drying temperature is 55 ℃.
The fiber fineness was 1.38.
Example 2
The wet spinning preparation method of the bamboo fiber comprises the following steps:
(1) preparing a spinning solution: adding bamboo composite cellulose into potassium alginate/N-methylmorpholine oxide solution with the mass 10 times of that of the bamboo composite cellulose, heating to 75 ℃, keeping the temperature and stirring for 30min, then adding an organic-inorganic compound, continuously stirring for 35min, then adding 1-ethyl-3-methylimidazolium acetate with the mass 12% of that of the alginate/N-methylmorpholine oxide solution, adjusting the temperature to 65 ℃, keeping the temperature and stirring for 1 h, and keeping the temperature to obtain the bamboo composite cellulose, wherein the bamboo composite cellulose is obtained by mixing bamboo cellulose and cellulose xanthate according to the mass ratio of 10:1, the alginate mass fraction in the potassium alginate/N-methylmorpholine oxide solution is 12.5%, the N-methylmorpholine oxide mass fraction is 55%, the balance is water, and the organic-inorganic compound is obtained by compounding sodium maleate and stearic acid according to the mass ratio of 3:1, the adding amount of the organic-inorganic compound is 6.5 percent of the mass of the bamboo composite cellulose;
(2) metering the spinning stock solution by a metering pump, forming spinning trickle through a 10000-hole spinning head, feeding the spinning trickle into a coagulation bath, and performing coagulation treatment, wherein the temperature of the coagulation bath is 45 ℃;
(3) wet spinning is carried out under the conditions that the drafting is 10 percent and the circulating amount of a coagulating bath is 900L/h, and then the bamboo fiber yarns are obtained after washing, water drawing, drying, shaping and winding, wherein the drying temperature is 55 ℃.
The fiber fineness was 1.38.
Example 3
The wet spinning preparation method of the bamboo fiber comprises the following steps:
(1) preparing a spinning solution: adding bamboo composite cellulose into potassium alginate/N-methylmorpholine oxide solution with the mass 10 times of that of the bamboo composite cellulose, heating to 72 ℃, keeping the temperature and stirring for 30min, then adding an organic-inorganic compound, continuously stirring for 31min, then adding 1-ethyl-3-methylimidazolium acetate with the mass 11% of that of the alginate/N-methylmorpholine oxide solution, adjusting the temperature to 62 ℃, keeping the temperature and stirring for 1 h, and keeping the temperature to obtain the bamboo composite cellulose, wherein the bamboo composite cellulose is obtained by mixing bamboo cellulose and cellulose xanthate according to the mass ratio of 10:1, the alginate mass fraction in the potassium alginate/N-methylmorpholine oxide solution is 12.5%, the N-methylmorpholine oxide mass fraction is 55%, the balance is water, and the organic-inorganic compound is obtained by compounding sodium maleate and stearic acid according to the mass ratio of 3:1, the adding amount of the organic-inorganic compound is 6.5 percent of the mass of the bamboo composite cellulose;
(2) metering the spinning stock solution by a metering pump, forming spinning trickle through a 10000-hole spinning nozzle, feeding the spinning trickle into a coagulation bath, and performing coagulation treatment, wherein the temperature of the coagulation bath is 44 ℃;
(3) wet spinning is carried out under the conditions that the drafting is 8 percent and the circulation amount of a coagulating bath is 850L/h, and then the bamboo fiber yarns are obtained after washing, water drawing, drying, shaping and winding, wherein the drying temperature is 55 ℃.
The fiber fineness was 1.38.
The bamboo fiber filaments of the examples were subjected to a strength test (model YG 023-II Strength tester);
TABLE 1
Breaking strength cN/tex Breaking strength cN
Example 1 14.08 208.6
Example 2 16.72 238.2
Example 3 14.67 219.1
As can be seen from Table 1, the bamboo fiber prepared by the method of the present invention has excellent mechanical properties.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should understand that they can make various changes, modifications, additions and substitutions within the spirit and scope of the present invention.

Claims (8)

1. The wet spinning preparation method of the bamboo fiber yarn is characterized by comprising the following steps:
(1) preparing a spinning solution: adding bamboo composite cellulose into alginate/N-methylmorpholine oxide solution with the mass 10 times of that of the bamboo composite cellulose, heating to 70-75 ℃, keeping the temperature and stirring for 30min, then adding an organic-inorganic compound, continuing to stir for 30-35min, then adding 1-ethyl-3-methylimidazole acetate with the mass 10-12% of that of the alginate/N-methylmorpholine oxide solution, adjusting the temperature to 60-65 ℃, keeping the temperature and stirring for 1 hour, and keeping the temperature to obtain the bamboo composite cellulose;
(2) metering the spinning stock solution by a metering pump, forming a spinning trickle through a spinning nozzle, feeding the spinning trickle into a coagulating bath, and carrying out coagulation treatment;
(3) wet spinning is carried out under the conditions that the drafting is 5-10 percent and the circulation amount of the coagulating bath is 800-900L/h, and then the bamboo fiber yarns are obtained after water washing, water drafting, drying, sizing and winding.
2. The wet spinning preparation method of bamboo filaments according to claim 1, wherein the bamboo composite cellulose in the step (1) is obtained by mixing bamboo cellulose and cellulose xanthate in a mass ratio of 10: 1.
3. The wet spinning preparation method of bamboo filaments according to claim 1, wherein the alginate/N-methylmorpholine oxide solution in step (1) contains 12.5% by mass of alginate, 55% by mass of N-methylmorpholine oxide and the balance of water.
4. The wet spinning preparation method of bamboo filaments according to claim 1 or 3, wherein the alginate is potassium alginate.
5. The wet spinning preparation method of bamboo filaments according to claim 1, wherein the organic-inorganic composite in step (1) is prepared by compounding sodium maleate and stearic acid in a mass ratio of 3: 1.
6. The wet spinning preparation method of bamboo filaments as claimed in claim 5, wherein the amount of the organic-inorganic composite added is 6.5% of the mass of the bamboo composite cellulose.
7. The method for preparing bamboo filaments by wet spinning according to claim 1, wherein the spinneret in the step (2) is 10000 holes.
8. The wet spinning preparation method of bamboo filaments according to claim 1, wherein the coagulation bath temperature in step (2) is 40-45 ℃.
CN201911278658.8A 2019-12-13 2019-12-13 Wet spinning preparation method of bamboo fiber yarns Withdrawn CN110938884A (en)

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Application Number Priority Date Filing Date Title
CN201911278658.8A CN110938884A (en) 2019-12-13 2019-12-13 Wet spinning preparation method of bamboo fiber yarns

Publications (1)

Publication Number Publication Date
CN110938884A true CN110938884A (en) 2020-03-31

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Country Status (1)

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Application publication date: 20200331