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A kind of high-yield and high-performance bamboo fiber material prepared by using bamboo as raw material and preparation method thereof

A bamboo fiber and high-performance technology, which is applied in the fields of cellulose raw material pulping, fiber raw material processing, papermaking, etc., can solve the problems of lack of high-yield and high-performance bamboo fiber technology, shorten cooking time, reduce production costs, Effect of reducing COD emissions

Active Publication Date: 2018-09-28
SICHUAN HUANLONG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But there is no technology related to the preparation of high-yield and high-performance bamboo fibers at present

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] Described a kind of preparation method of the high-yield high-performance bamboo fiber material prepared with bamboo as raw material comprises the following steps:

[0025] S1, adding 8-10% potassium hydroxide solution to the absolute dry raw material amount in the bamboo plant raw material, and its solid-liquid ratio is 1:3-4;

[0026] S2, heating by feeding steam, heating to a temperature of 110-125° C. and keeping it warm for 50-60 minutes to obtain a bamboo fiber material.

[0027] The cooking method uses less cooking liquid, does not contain sulfide, and takes a short time for cooking and heat preservation, and is an economical and environmentally friendly cooking method.

[0028] The cooking process is a key step in pulping. Due to the differences in the tissue structure, microstructure, chemical composition and lignin molecular structure of wood and bamboo raw materials, the delignification reaction process in the cooking process is also very different. For bamb...

Embodiment 1

[0041] Bamboo slices prepared by wet method are impregnated with an impregnation screw, mixed with a potassium hydroxide solution of 8% relative to the absolute dry bamboo slices in the impregnation screw, and the liquid ratio is 1:4. Insulate and mix for 60 minutes in the spiral macerator; 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; heat with steam to 120° C. and maintain 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 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. The yield of the prepared high-performance bamboo pulp was 65%. The bamboo plant...

Embodiment 2

[0043] Bamboo slices prepared by wet method are impregnated with impregnation screw, mixed with potassium hydroxide solution of 10% relative to absolute dry bamboo slices in the dipping screw, with a liquid ratio of 1:4, at normal pressure and 90°C Insulate 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 heat it with steam To 110°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 55 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. The yield of the prepared high-performance bamboo pulp was 67%. Th...

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Abstract

The invention discloses a high-yield high-performance bamboo fiber material prepared from bamboo used as a raw material. K value of the material is 80-100. A preparation method of the material comprises the following steps: S1, a potassium hydroxide solution which accounts for 8-10% of consumption of the absolute dry raw material is added into the bamboo plant raw material, and the solid-liquid ratio is 1:3-4; and S2, stream is blown in and heating is carried out, and thermal insulation is carried out for 50-60 min when temperature is rising to 110-125 by heating. The invention has the following beneficial effects: a bamboo plant is used as a raw material to prepare the high-performance fiber material by a method except a method of pulping with an organic solvent; and during the preparation process, dosage of a cooking liquor is reduced and cooking time is shortened to prepare the high-performance bamboo fiber material. By reducing the dosage of a chemical solution and shortening the cooking time, production cost of an enterprise will be decreased. Thus, the high-yield high-performance bamboo fiber material is obtained.

Description

technical field [0001] The invention relates to a high-yield and high-performance bamboo fiber material prepared from bamboo as a raw material and a preparation method thereof. Background technique [0002] It is generally believed that papermaking and dissolving pulp are produced by using wood, and the dissolving pulp refers to cellulose pulp, which refers to the pulp that can be made into fibers from the cellulose pulp in the future. However, with the shortage of wood resources, people try to use raw materials such as non-wood plant fibers to make pulp. [0003] The non-timber plants used include mulberry bast, hemp, cotton, Manila hemp, etc. At present, there are chemical methods, mechanical methods, and chemomechanical methods for producing pulp from plant fibers. Chemical pulping is the most widely used pulping method by removing certain components in the plant fiber raw material through chemical action to dissociate the raw material into pulp. In chemical cooking, i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21C5/00D21C3/22
Inventor 周骏刘建兵朱清云范武毅
Owner SICHUAN HUANLONG NEW MATERIAL
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