Short linen viscose fiber and preparation method thereof

A viscose staple fiber and viscose fiber technology is applied in the field of viscose fiber, which can solve the problems of high cooking strength, large material consumption, long time, etc., to solve the cumbersome cooking process, and solve the problems of high cooking strength and short production cycle. Effect

Active Publication Date: 2011-09-14
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

[0003] At present, there are some existing techniques for producing viscose fiber using hemp plants as raw materials, and the whiteness, strength and fiber elongation of the produced viscose fiber are not ideal; and its technology is also relatively complicated, and the production The consumption of materials in the fiber is relatively large, which affects people's utilization of hemp plants, and also affects the production and quality of viscose fibers to a certain extent.
For example, the Chinese patent No. ZL200410004397.8 discloses a method for preparing hemp viscose fiber pulp and functional fibers. The cooking strength is high, the cooking process is cumbersome, the time is long, and a large amount of black liquor is produced after cooking.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036]A preparation method of hemp viscose staple fiber, comprising: after the hemp material is prepared, it is pretreated, washed with water, cooked, washed, beaten, desanded, concentrated, refined with alkali, bleached, acid treated, washed, and finally selected Desanding, concentration, copying, impregnation, pressing, crushing, aging, yellowing, grinding, dissolution, filtration, degassing, filtration, spinning, drawing, cutting, post-processing, drying, and packaging to make finished products, specific processes as follows:

[0037] (1) Pretreatment: After cutting and washing the hemp material, add sulfuric acid in the pretreatment tower to adjust the pH value at 2, the amount of ozone added is 3% of the relative absolute dry raw material quality, the treatment time is 10min, the pressure is 0.5MPa, and the temperature 40°C.

[0038] (2) Washing: the temperature is 50° C., the pulp quality after washing: 81.2% by mass of total cellulose, 1.8% by mass of lignin, 0.41% by ...

Embodiment 2

[0058] A preparation method of hemp viscose staple fiber, comprising: after the hemp material is prepared, it is pretreated, washed with water, cooked, washed, beaten, desanded, concentrated, refined with alkali, bleached, acid treated, washed, and finally selected Desanding, concentration, copying, impregnation, pressing, crushing, aging, yellowing, grinding, dissolving, filtering, defoaming, filtering, spinning, drawing, cutting, post-processing, drying, and packaging to make finished products.

[0059] (1) Pretreatment: After cutting and washing the hemp material, add sulfuric acid in the pretreatment tower to adjust the pH value at 3, the amount of ozone added is 1% of the relative absolute dry raw material quality, the treatment time is 20min, the pressure is 0.8MPa, and the temperature 50°C.

[0060] (2) Washing: the temperature is 60°C, the pulp quality after washing: 82.2% by mass of total cellulose, 1.9% by mass of lignin, 0.51% by mass of pectin, and 0.51% by mass of...

Embodiment 3

[0080] A preparation method of hemp viscose staple fiber, comprising: after the hemp material is prepared, it is pretreated, washed with water, cooked, washed, beaten, desanded, concentrated, refined with alkali, bleached, acid treated, washed, and finally selected Desanding, concentration, copying, impregnation, pressing, crushing, aging, yellowing, grinding, dissolving, filtering, defoaming, filtering, spinning, drawing, cutting, post-processing, drying, and packaging to make finished products.

[0081] (1) Pretreatment: After cutting and washing the hemp material, add sulfuric acid in the pretreatment tower to adjust the pH value at 2, the amount of ozone added is 2% of the relative absolute dry raw material quality, the treatment time is 15min, the pressure is 0.7MPa, and the temperature 45°C.

[0082] (2) Washing: the temperature is 55°C, the pulp quality after washing: 81.2% by mass of total cellulose, 1.8% by mass of lignin, 0.41% by mass of pectin, and 0.41% by mass of...

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Abstract

The invention discloses short linen viscose fiber and a preparation method thereof. The viscose fiber is produced by preparing linen pulp from linen and then using the linen pulp. The preparation method comprises the following steps of: pre-processing, washing, digesting, washing, pulping, degritting, concentrating, alkali refining, whitening, performing acid treatment, washing, finely selecting, degritting, concentrating, papermaking, soaking, squeezing, smashing, aging, yellowing, grinding, dissolving, filtering, defoaming, filtering, spinning, drafting, cutting off, performing post treatment, drying, packaging and the like. The preparation method has the advantages that: the performance of bacterial resistance and bacterial resistance of the linen fiber can be kept better, a finished product has high whiteness, the production period is short, the problems of large digesting intensity, complicated digesting process and the like are solved, and the pollution generated during production is low.

Description

technical field [0001] The invention relates to a viscose fiber, in particular to a viscose staple fiber produced from hemp material and a preparation method thereof, belonging to the field of viscose fiber production. Background technique [0002] With the improvement of people's living standards, the requirements for fabrics are also getting higher and higher. Viscose fiber fabrics are recognized by consumers for their good moisture absorption, breathability, and comfortable wearing. In addition to the advantages of ordinary viscose fiber, functional viscose fiber is the biggest highlight of this type of fiber because of its unique functionality. In addition to better moisture absorption and air permeability than ordinary viscose fiber, hemp fiber fabric has outstanding antibacterial and antibacterial properties, and has obvious killing effects on Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, Candida albicans, etc. Killing effect. [0003] At present,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/06C08B9/00D21C1/04D21C9/16D21C9/18
Inventor 逄奉建王乐军刘建华秦翠梅姜明亮王东卢海蛟
Owner 潍坊欣龙生物材料有限公司
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