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Method of preparing natural color pulp from dendrocalamus latiflorus

A technology of natural color and pulp, applied in pulp dehydration, washing/replacing pulp treatment liquid, papermaking, etc., to achieve the effect of good water drainage, high strength and simple process

Inactive Publication Date: 2017-08-25
广西金荣纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The invention provides a method for preparing uncolored pulp by using hemp bamboo to solve the problem of how to improve the yield and whiteness of hemp bamboo pulp

Method used

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  • Method of preparing natural color pulp from dendrocalamus latiflorus
  • Method of preparing natural color pulp from dendrocalamus latiflorus

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preparation example Construction

[0035] In an embodiment, the preparation method of described hemp bamboo natural color pulp comprises the following steps:

[0036] S1: Cut Mazhu into pieces with a size of 24-28×3-3.6mm×1.4-2mm, and transport them to the primary pretreatment infusion A, the weight of the hemp bamboo is equal to the volume of the primary pretreatment infusion A The ratio is 1:2-4, and the primary pretreatment immersion liquid A includes the following raw materials in parts by weight: 4-8 parts of alkylphenol polyoxyethylene ether, 0.3-0.6 parts of triethanolamine, 0.5-0.5 parts of stearic acid 1 part, 0.4-1.2 parts of oleic acid, 0.8-1.5 parts of lauric acid, 42-90 parts of water, soak for 30-45 minutes at an ultrasonic power of 30-50W and a temperature of 43-48°C, and then filter to obtain the soaking material A;

[0037] S2: Transport the soaking material A prepared in step S1 to the secondary pretreatment immersion liquid B, the ratio of the weight of the immersion material A to the volume...

Embodiment 1

[0042] A preparation method of hemp bamboo natural color pulp, comprising the following steps:

[0043] S1: Cut the bamboo into pieces with a size of 26×3.4mm×1.8mm, and transport them to the primary pretreatment infusion A, the ratio of the weight of the hemp bamboo to the volume of the primary pretreatment infusion A is 1:2 , the primary pretreatment immersion solution A is in parts by weight, including the following raw materials: 4.1 parts of alkylphenol polyoxyethylene ether, 0.3 part of triethanolamine, 0.5 part of stearic acid, 0.4 part of oleic acid, 0.8 part of lauric acid, 42 parts of water, soaked for 45 minutes at an ultrasonic power of 30W and a temperature of 44°C, and then filtered to obtain the impregnated material A;

[0044] S2: Transport the steeping material A prepared in step S1 to the secondary pretreatment immersion liquid B, the ratio of the weight of the steeping material A to the volume of the secondary pretreatment immersion liquid B is 1:6, and the ...

Embodiment 2

[0049] A preparation method of hemp bamboo natural color pulp, comprising the following steps:

[0050] S1: Cut Mazhu into pieces with a size of 24×3mm×1.4mm, and transport them to the primary pretreatment infusion A, the ratio of the weight of the hemp bamboo to the volume of the primary pretreatment infusion A is 1:4, The primary pretreatment immersion solution A is in parts by weight and includes the following raw materials: 8 parts of alkylphenol polyoxyethylene ether, 0.6 part of triethanolamine, 1 part of stearic acid, 1.2 parts of oleic acid, 1.5 parts of lauric acid, water 90 parts were soaked for 32 minutes at an ultrasonic power of 50W and a temperature of 48°C, and then filtered to obtain the impregnated material A;

[0051] S2: Transport the soaking material A prepared in step S1 to the secondary pretreatment immersion liquid B, the ratio of the weight of the immersion material A to the volume of the secondary pretreatment immersion liquid B is 1:13, and the second...

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Abstract

The invention discloses a method of preparing natural color pulp from dendrocalamus latiflorus, and belongs to the technical field of natural color pulp preparation. Dendrocalamus latiflorus is pretreated secondarily, washed, dewatered, ground, screened and purified to prepare the natural color pulp. The preparing process is simple, the yield and whiteness of the obtained pulp are remarkably higher than those of pulp prepared through the prior art, in addition, the pulp is high in drainability and strength, low in cost, low in energy consumption of the pulping process and suitable for manufacturing pulp molds and paper for daily use.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of natural-color paper preparation, and in particular relates to a method for preparing natural-color pulp by utilizing hemp bamboo. [0003] 【Background technique】 [0004] The current pulp production methods mainly include chemical, semi-chemical, mechanical and chemical-mechanical processes. Among them, chemical pulping occupies a dominant position among many pulping methods at present. The pulp prepared by chemical cooking is called natural pulp. The low brightness of natural pulp limits its application. Generally, natural pulp can only be produced after bleaching to produce higher-grade paper. If the whiteness of the natural pulp can be improved during the pulping process, the trouble of subsequent bleaching can be saved, the production process can be simplified, the production cost can be reduced, and the use value of the natural pulp can be increased. [0005] In the production process of na...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21B1/30D21C9/02D21D5/02D21C9/18
CPCD21B1/306D21C9/02D21C9/18D21D5/02
Inventor 古金荣古丰铭
Owner 广西金荣纸业有限公司
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