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A kind of production method of low-quantity kraft linerboard

A liner cardboard and production method technology, applied in the field of papermaking, can solve the problems affecting paper quality, low paper weight, paper strength, opacity and stiffness performance decline, etc., to improve physical strength, improve dispersibility, improve The effect of intensity

Active Publication Date: 2020-05-19
JIANGSU LEE & MAN PAPER MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also many problems in the low weight of paper. With the reduction of weight, the strength, opacity, stiffness and other properties of paper will decrease, which will affect the quality of paper.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of production method of the low-quantity kraft liner board, comprises the following steps:

[0023] (1) Pulping: mix the waste paper and bagasse and place it in a pulper for beating, and obtain a slurry after screening; add a dry strength agent to the slurry and mix it, then add a dye, and mix it thoroughly for later use; Dry strength agent raw materials in the following parts by weight: 2 parts of nano ceramics, 6 parts of nano silicon dioxide, 5 parts of sodium carboxymethyl cellulose, 3 parts of chitosan and 15 parts of glass fiber; the dyestuffs are sunset yellow and rouge red mixture;

[0024] (2) Papermaking: Put the slurry in step (1) in a paper machine for papermaking to obtain base paper;

[0025] (3) Sizing: Spray and sizing the base paper to obtain the final finished cardboard.

[0026] Wherein, in step (1), the weight ratio of waste paper to bagasse is 6:1, and at the same time, biological enzymes are added to the pulper, and the biological enzymes ...

Embodiment 2

[0029] A kind of production method of the low-quantity kraft liner board, comprises the following steps:

[0030] (1) Pulping: mix the waste paper and bagasse and place it in a pulper for beating, and obtain a slurry after screening; add a dry strength agent to the slurry and mix it, then add a dye, and mix it thoroughly for later use; Dry strength agent raw materials in the following parts by weight: 6 parts of nano ceramics, 2 parts of nano silicon dioxide, 10 parts of sodium carboxymethyl cellulose, 1 part of chitosan and 10 parts of glass fiber; the dyestuff is sunset yellow and rouge red mixture;

[0031] (2) Papermaking: Put the slurry in step (1) in a paper machine for papermaking to obtain base paper;

[0032] (3) Sizing: Spray and sizing the base paper to obtain the final finished cardboard.

[0033] Wherein, in step (1), the weight ratio of waste paper to bagasse is 5:1, and at the same time, biological enzymes are added to the pulper, and the biological enzymes in...

Embodiment 3

[0036] A kind of production method of the low-quantity kraft liner board, comprises the following steps:

[0037] (1) Pulping: mix the waste paper and bagasse and place it in a pulper for beating, and obtain a slurry after screening; add a dry strength agent to the slurry and mix it, then add a dye, and mix it thoroughly for later use; Dry strength agent raw materials in the following parts by weight: 4 parts of nano-ceramic, 4 parts of nano-silica, 8 parts of sodium carboxymethylcellulose, 2 parts of chitosan and 12 parts of glass fiber; the dyestuff is sunset yellow and rouge red mixture;

[0038] (2) Papermaking: Put the slurry in step (1) in a paper machine for papermaking to obtain base paper;

[0039] (3) Sizing: Spray and sizing the base paper to obtain the final finished cardboard.

[0040] Wherein, in step (1), the weight ratio of waste paper to bagasse is 5:1, and at the same time, biological enzymes are added to the pulper, and the biological enzymes include the f...

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PUM

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Abstract

The invention discloses a method for producing lightweight kraft liner board paper. The method includes the following steps of (1) pulping: mixing waste paper and bagasse, conducting pulping in a pulper and conducting screening to obtain slurry; adding a dry strength agent to the slurry for mixing, adding a dye and fully mixing for standby use; (2) papermaking: placing the slurry obtained in the step (1) in a paper machine for papermaking to obtain base paper; (3) sizing: conducting surface sizing on the base paper to obtain a final finished board paper. The method has simple process, adopts the waste paper and the bagasse as raw materials, and is environmentally friendly. The dry strength agent and the dye are added to the slurry, and the slurry brightness is improved while the slurry strength is improved.

Description

technical field [0001] The invention relates to a production method of low-weight kraft liner board, which belongs to the technical field of papermaking. Background technique [0002] In recent years, the rapid development of my country's national economy has driven the rapid growth of the domestic packaging industry. As the main raw material for paper packaging, kraft linerboard is also increasing in market demand and output. Market competition has made carton manufacturers have higher and higher requirements for the appearance and color of containerboard, and the demand for kraft linerboard is gradually developing towards heavy dyeing. At present, there are rich and colorful containerboard colors, such as American Red, Japan Emperor, Huasong color, etc., the color index has become an important technical index of containerboard paper. In order to meet market demand, it is very necessary to develop heavy-dyed environmentally friendly kraft liner linerboard with high color b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21B1/34D21C5/00D21F11/00D21H21/16D21H27/00
CPCD21B1/345D21C5/005D21F11/00D21H21/16D21H27/00
Inventor 李文斌
Owner JIANGSU LEE & MAN PAPER MFG
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