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Paper pulp preparation method

A pulp and pulp technology, which is applied to non-woody plant/crop pulp, paper, textiles and papermaking, etc., can solve the problems of single raw material, consumption, production demand and production cost cannot be guaranteed, save wood, ensure Overall texture, loss-saving effect

Inactive Publication Date: 2020-06-02
江苏海派环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, based on the above research, there are still many deficiencies in the existing pulp blending and processing technology. The pulp on the existing market is basically produced from the same raw material, so that the production needs of paper are met, and the use needs of different environments are met. , but due to the single production of raw materials, the production demand and production cost cannot be guaranteed to be in a good demand range, which leads to the need for good paper to consume high-quality raw materials and economic costs, while low-cost raw materials cannot be better guaranteed Paper quality requirements, so it is necessary to improve the pulp blending process to meet the production requirements

Method used

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  • Paper pulp preparation method

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Embodiment 1

[0022] see figure 1 , the embodiment that the present invention provides: a kind of paper pulp preparation method, adopt bamboo raw material and sugarcane as raw material, and carry out the preparation of paper pulp by equipment operations such as peeling machine, cooker, pulp washing machine, screening equipment, constant temperature water bath, It is characterized in that: comprising the following five steps:

[0023] Step 1: be 50-70% bamboo raw material and 30-50% sugarcane to carry out material preparation operation with weight ratio, and carry out peeling processing to bamboo raw material and sugarcane by peeling machine; The peeling operation of peeling machine is to make follow-up The cooking process can be better carried out;

[0024] Step 2: Put the peeled bamboo raw materials and sugarcane into the cooking pot, and cook and degrade them to produce crude pulp; before 100°C, the concentration of the cooking liquid decreases, but the lignin basically does not dissolve...

Embodiment 2

[0033] 1. Beating

[0034] 1. Use physical and mechanical methods to process the pulp, and the operation can be completed through a disc refiner, so that the fibers are separated into single fibers by extrusion, friction, kneading, shearing, etc.

[0035] 2. The role of beating

[0036] (1) Displace and deform the cell wall;

[0037] (2) breaking the outer layer (S) of the primary wall (P) and the secondary wall;

[0038] (3) fine fibrillation (separation of fibrillation-fiber ends and fiber surface microfibers are scattered and fluffy);

[0039] The purpose of its operation is to increase the contact area between fibers and enhance the interweaving force between fibers.

[0040] Two, sizing

[0041] Sizing refers to adding water-resistant sizing agent to the pulp or applying sizing on the surface of the paper web to make the paper obtain

[0042] Ability to resist diffusion and penetration of liquids.

[0043] The purpose of sizing is to change the surface energy of fiber...

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Abstract

The invention discloses a paper pulp preparation method, which adopts a bamboo raw material and sugarcane as raw materials, and prepares paper pulp through operation of a peeler, a digester, a pulp washer, screening equipment, a constant-temperature water bath kettle and other equipment. The raw bamboo pulp and the sugarcane pulp are effectively prepared and mixed, and a reasonable blending proportion is adopted to ensure that the two do not react after being mixed, and the production and processing of paper pulp are ensured; meanwhile, the raw bamboo pulp and the sugarcane pulp are mixed andprocessed to ensure that the whole texture of the produced paper is guaranteed, the produced paper still has the advantages of the bamboo pulp paper, meanwhile, the loss of bamboo raw materials is further reduced; and the sugarcane achieves a good compensation effect, a large amount of wood is effectively saved, the national circular economy requirements and environmental protection policies are met, waste recycling is achieved, and good economic benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a pulp preparation method. Background technique [0002] Pulp is a fibrous substance made from plant fibers through different processing methods. It can be divided into mechanical pulp, chemical pulp and chemical mechanical pulp according to the processing method; it can also be divided into wood pulp, straw pulp and hemp pulp according to the fiber raw materials used. Pulp, reed pulp, sugarcane pulp, bamboo pulp, rag pulp, etc. can be divided into refined pulp, bleached pulp, unbleached pulp, high-yield pulp, semi-chemical pulp, etc. according to different purities, and are generally used to make paper and cardboard. In addition to being used for the manufacture of specialty paper, refined pulp is also often used as a raw material for the manufacture of cellulose derivatives such as cellulose esters and cellulose ethers, and is also used in the fields of artificial fibers, p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/12D21C3/02D21D5/16D21H21/16D21H21/28
CPCD21H11/12D21C3/02D21D5/16D21H21/16D21H21/28
Inventor 刘孝林邓新桥熊先道
Owner 江苏海派环保科技有限公司
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