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A kind of method for preparing bleached pulp from hemp bamboo

A technology of hemp bamboo and hemp bamboo chips, which is applied in the field of hemp bamboo to prepare bleached pulp, to achieve the effect of high softness

Active Publication Date: 2019-08-13
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

[0010] The invention provides a method for preparing bleached pulp from hemp bamboo to solve the problem of how to improve the yield and whiteness of hemp bamboo pulp

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] In an embodiment, the preparation method of the toilet paper prepared by bleaching process comprises the following steps:

[0032] S1: Cut Mazhu into pieces with a size of 20-30×2.8-3.7mm×1.2-2.5mm and pulverize them. The obtained pulverized product is transported to the primary pretreatment soaking solution A. The weight of the pulverized product is The ratio to the volume of the primary pretreatment immersion liquid A is 1:1.5-3.5, and the primary pretreatment immersion liquid A is in parts by weight, including the following raw materials: 4-8 parts of alkylphenol polyoxyethylene ether, 0.3 parts of triethanolamine -0.6 parts, 0.5-1 parts of stearic acid, 0.4-1.2 parts of oleic acid, 0.8-1.5 parts of lauric acid, 42-90 parts of water, soaking at 30-50W ultrasonic power and 43-48°C for 26 -40min, then filter to obtain steeping material A;

[0033] S2: Transport the steeping material A prepared in step S1 to the secondary pretreatment immersion liquid B, the ratio of t...

Embodiment 1

[0039] A preparation method of toilet paper prepared by bleaching process, comprising the following steps:

[0040] S1: Cut Mazhu into pieces with a size of 22×3.2mm×1.3mm and crush them. The obtained pulverized product is sent to the primary pretreatment infusion A. The volume ratio of A is 1:1.6, and the primary pretreatment immersion solution A is in parts by weight, including the following raw materials: 4 parts of alkylphenol polyoxyethylene ether, 0.3 part of triethanolamine, 0.5 part of stearic acid, oleic acid 0.4 parts, 0.8 parts of lauric acid, and 42 parts of water, soaked for 40 minutes at an ultrasonic power of 30W and a temperature of 43°C, and then filtered to obtain the soaking material A;

[0041] 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 1:5.6, and the secondary pretreatment The...

Embodiment 2

[0047] A preparation method of toilet paper prepared by bleaching process, comprising the following steps:

[0048] S1: Cut Mazhu into pieces with a size of 29×3.6mm×2.4mm and crush them. The obtained pulverized product is sent to the primary pretreatment infusion A. The volume ratio of A is 1:3.4, and the primary pretreatment immersion solution A is in parts by weight, including the following raw materials: 8 parts of alkylphenol polyoxyethylene ether, 0.6 part of triethanolamine, 1 part of stearic acid, oleic acid -1.2 parts, 1.5 parts of lauric acid, and 90 parts of water, soaked for 26 minutes at an ultrasonic power of 50W and a temperature of 48°C, and then filtered to obtain the soaking material A;

[0049] 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 1:12.3, and the secondary pretreatment The...

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PUM

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Abstract

The invention discloses a method for preparing bleached pulp through dendrocalamus latiflorus, and belongs to the technical field of papermaking. Unbleached pulp is prepared through the steps of secondary pretreatment, washing, screening, bleaching and the like. The prepared bleached pulp is high in yield and whiteness; the brightness, tensile index and softness of tissue produced subsequently are high, and the tissue has no stimulation or adverse reaction to human skin.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of papermaking, and in particular relates to a method for preparing bleached pulp from 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. [0005] Household paper, especially toilet paper, is a commonly used daily consumer product. However, due to the psychological need for whiteness and some physical indicators, it is usually made of pulp mainly made of bleached wood pulp. Even if all straw pulp is used to prepare toilet paper, bleached pulp is also used, but the yield a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21C1/10D21C3/00D21C3/22D21C9/02D21D5/02D21C9/10
CPCD21C1/10D21C3/00D21C3/222D21C9/02D21C9/10D21D5/02
Inventor 古金荣古丰铭
Owner 广西金荣纸业有限公司