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Manufacturing method of high performance hollow cellulose fibre

A technology of cellulose fibers and manufacturing methods, which is applied in the manufacture of hollow filaments, single-component cellulose rayon, rayon, etc., can solve the problems of breathable and moisture permeability, thermal drape and wrinkle resistance, fiber elasticity, Poor thermal and antistatic performance, low hollowness and other problems, to achieve the effect of improved thermal and antistatic performance, poor sweat absorption and perspiration performance, and good air and moisture permeability

Active Publication Date: 2009-11-11
潍坊欣龙生物材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fiber holes in the current mesoporous fibers mostly extend along the fiber axis, the hollowness in the fiber is low, and the cross-sections of the fiber holes are also in various forms, such as round, flat, triangular, quadrangular, plum-shaped, etc. , and the number of holes on the cross-section is also four holes, seven holes, nine holes, etc., but the fiber holes in the fiber adopt such a fiber hole and distribution form, which is easy to cause the structure of the fiber hole distribution in the fiber to be single, and the strength is low. The wet modulus is low, the sweat-absorbing and sweat-wicking performance of the fiber is poor, and the elasticity, warmth and antistatic performance of the fiber are also poor, which leads to the breathability, moisture permeability, warmth retention, drape and The wrinkle resistance is poor, which affects people's use of it

Method used

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  • Manufacturing method of high performance hollow cellulose fibre

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] 1) Selection and configuration of blowing agent:

[0011] Foaming agent: Inorganic foaming agent Na 2 CO 3 ;

[0012] The configuration of the blowing agent solution: take Na 2 CO 3 Add 3Kg of solid to 30L of softened water, stir evenly to dissolve it for later use;

[0013] 2) Preparation of spun viscose: Alkali cellulose is prepared by using cellulose cotton pulp, and the prepared alkali cellulose is added to a yellowing machine for yellowing reaction, and after yellowing for 90 minutes, add 2% ( Relative to the weight of α-cellulose) the denaturant PEG-1500 reacts uniformly until the end of yellowing. After the yellowing is over, take the prepared inorganic foaming agent solution and add it to the yellowing machine with the foaming dose of 15% relative to the weight of α-cellulose and the yellowing dissolved water. After dissolving, mix, filter, and defoam , mature and make methyl fiber be 10.5% (mass), the spinning viscose of total alkali content (sodium hydro...

Embodiment 2

[0016] 1) Selection and configuration of blowing agent:

[0017] Foaming agent: Inorganic foaming agent NaHCO 3 ;

[0018] The configuration of the blowing agent solution: take NaHCO 3 Add 2.6Kg of solid to 30L of softened water, stir evenly to dissolve it for later use;

[0019] 2) Preparation of spinning viscose: Alkali cellulose is prepared by using cellulose cotton pulp and wood pulp, and the prepared alkali cellulose is added to a yellowing machine for yellowing reaction. After yellowing for 100 minutes, add 2.5 % (α-cellulose weight) denatured agent V32 reacted uniformly until the end of yellowing. After the yellowing is finished, the prepared inorganic foaming agent solution is added to the yellowing machine together with the yellowing dissolved water at a foaming dose of 20% relative to the weight of α-cellulose. After dissolving, it is mixed, filtered, and defoamed. , maturing and making methyl fiber 8.92% (mass), total alkali content (sodium hydroxide and sodium ...

Embodiment 3

[0022] 1) Selection and configuration of blowing agent:

[0023] Foaming agent: azodicarbonamide;

[0024] The configuration of the foaming agent solution: Take 2.0Kg of the foaming agent azodicarbonamide and add it to 30L of softened water, stir evenly to dissolve it for later use;

[0025] 2) Preparation of spinning viscose: use cellulose wood pulp to prepare alkali cellulose, take the prepared alkali cellulose and add it to a yellowing machine for yellowing reaction, after yellowing for 80 minutes, add 1.8% (relative to fiber prime weight) denaturant LV3 uniform reaction until the end of yellowing. After the yellowing is over, the prepared inorganic foaming agent solution is added to the yellowing machine with the foaming amount of 8.2% relative to the weight of α-cellulose and the yellowing dissolved water. After dissolving, it is mixed, filtered, and defoamed. , mature and make methyl fiber 9.02% (mass), the spinning viscose of sodium hydroxide content 6.94%;

[0026]3...

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Abstract

The invention discloses a high-performance hollow cellulose fiber manufacturing method, which is to use cellulose pulp to prepare spinning viscose through the steps of soaking, yellowing, dissolving, filtering, degassing, etc., and spinning and forming, and in the production Add 1-3% denaturant relative to the weight of α-cellulose in the yellowing step, and add 5-30% foaming agent relative to the weight of α-cellulose in the dissolving step. The invention is convenient for production and operation, and the produced hollow cellulose fiber not only has a higher hollowness, but also has strong strength and wet modulus, and the structure of the produced hollow cellulose fiber greatly improves the sweat-absorbing and sweat-wicking performance of the fiber. At the same time, the elasticity, warmth and antistatic properties of the fiber have also been greatly improved.

Description

technical field [0001] The invention relates to a fiber preparation method, in particular to a method for preparing high-strength hollow cellulose fibers from cellulose. Background technique Background technique [0002] Hollow fiber is an important special-shaped fiber with a cavity in the cross-section along the axial direction. The fiber with this hollow structure has specific properties and styles such as good warmth retention and bulkiness, so it has been widely used by people. From the beginning, it was mainly used as The wadding filler with warm and fluffy properties has been developed to be widely used as materials for membrane separation, filling, toy products, carpets, artificial fur, advanced wool-like fabrics, advanced non-woven products, etc., in industries such as textiles, clothing, medical treatment, and wastewater treatment Play an important role. The fiber holes in the current mesoporous fibers mostly extend along the fiber axis, the hollowness in the fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F2/08D01F2/10D01D5/24
Inventor 王乐军马君志马峰刚车红莲
Owner 潍坊欣龙生物材料有限公司
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