Uncolored bamboo fiber with high antibacterial activity and processing method thereof

A technology of antibacterial activity and bamboo fiber, which is applied in fiber raw material processing, textiles and papermaking, etc., can solve the problems of not using consumers' health and residual sulfide, so as to avoid the possible harm of chemicals to the human body and reduce the consumption of raw materials , the effect of high flexibility

Active Publication Date: 2014-11-12
SICHUAN HUANLONG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of sulphides in cooking, sulphides remain in th

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Bamboo slices after wet material preparation are impregnated with an impregnation screw, mixed with potassium hydroxide solution with an amount of 8% relative to the absolute dry bamboo slices in the impregnation screw, and the ratio of solid to liquid is 1:4. Keep warm and mix in the spiral macerator for 60 minutes; then send it into the continuous cooking tube, add 8% potassium hydroxide solution to the absolute dry raw material in the bamboo plant raw material, and the ratio of solid to liquid is 1:4; pass steam Heating to 120° C. and maintaining this temperature condition; adjusting the operating speed of the continuous cooking tube so that the residence time of the bamboo chips in the continuous cooking tube is 60 minutes to obtain a bamboo fiber material. The bamboo chips in the continuous cooking tube enter the high-consistency mill through the discharge valve for refining treatment, and the black liquor produced is recycled. Adding molecular weight is 2,00...

Embodiment 2

[0040] Bamboo slices prepared by wet method are impregnated with impregnated auger, mixed with 10% potassium hydroxide solution relative to the dry bamboo slices in the impregnated auger, the ratio of solid to liquid is 1:4, at normal pressure, 90 ℃ Keep warm and mix in the spiral macerator for 80 minutes; then send it into the continuous cooking tube, add 10% potassium hydroxide solution to the absolute dry raw material in the bamboo plant raw material, the ratio of solid to liquid is 1:4, and steam Heating to 110° C., maintaining this temperature condition; adjusting the running speed of the continuous cooking tube so that the residence time of the bamboo slices in the continuous cooking tube is 55 minutes to obtain a bamboo fiber material. The bamboo chips in the continuous cooking tube enter the high-consistency mill through the discharge valve for refining treatment, and the black liquor produced is recycled. Adding molecular weight is 3,000,000 macromolecule chitosan...

Embodiment 3

[0042] Bamboo slices prepared by wet method are impregnated with impregnated auger, and impregnated with 12% absolute dry bamboo slices and potassium solution in the impregnated auger, with a solid-liquid ratio of 1:3. Insulated and mixed in the spiral macerator for 80 minutes; then sent to the continuous cooking tube, adding 9% potassium hydroxide solution to the absolute dry raw material in the bamboo plant raw material, the ratio of solid to liquid is 1:3, and heated to 125°C, keep this temperature condition; adjust the running speed of the continuous cooking tube, so that the residence time of the bamboo slices in the continuous cooking tube is 50 minutes, and obtain the bamboo fiber material. The bamboo chips in the continuous cooking tube enter the high-consistency mill through the discharge valve for refining treatment, and the black liquor produced is recycled. Adding molecular weight is 2,400,000 polymer chitosan in batching pool, and the addition is 0.012% of abs...

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Abstract

The invention discloses an uncolored bamboo fiber with high antibacterial activity. The beating degree of the fiber is 16-25 0SR, the fracture length ranges from 4 km to 6 km, the folding number ranges from 65 to 80, the whiteness is 22-25% ISO, the value of potassium permanganate ranges from 80 to 100, and the antibacterial rate is greater than or equal to 90%. A processing method of the uncolored bamboo fiber includes the steps that 1, materials are prepared, wherein bamboo plant raw materials are processed to be bamboo chips in a wet method; 2, cooking is carried out, wherein the bamboo chips are added into a potassium hydroxide solution and are heated to be at the temperature of 110-125 DEG C through steam, then the temperature is kept for 50-60 minutes, and a bamboo fiber material is obtained; 3, antibacterial treatment is carried out, wherein high molecular chitosan is added after the cooked bamboo fiber material is grinded into thick liquid. The uncolored bamboo fiber has the large fiber length, high flexibility and good water absorbing and water-retaining properties, and is soft in texture, fluffy and high in antibacterial property, the natural color of the bamboo fiber is kept, and the quality of down-stream products is improved remarkably. The processing method has the characteristics that operation is easy, production is convenient, the cost is low, and environmental protection is achieved.

Description

technical field [0001] The invention relates to a natural-color bamboo fiber with high antibacterial activity and a preparation method thereof. Background technique [0002] Due to the increasing shortage of wood resources in the world, it has become the goal pursued by various paper-making enterprises to produce pulp and paper without destroying forests and the environment. As a solution to this problem, the technology of making pulp from non-wood plant fibers using annual or biennial plants such as: farmland waste, bamboo, sugarcane stalks discarded after sugar production, rice and wheat straw, etc. as the main material has been attracting attention. [0003] Hygienic products are mainly used for women, children, the elderly, patients and disposable medical and sanitary products. Therefore, the requirements for hygiene are relatively high. But all there is following problem in the existing hygienic product preparation process: [0004] (1) The raw materials for the prepa...

Claims

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Application Information

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IPC IPC(8): D21C5/00
Inventor 沈根莲周骏朱清云范武毅
Owner SICHUAN HUANLONG NEW MATERIAL
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