Production technology for producing high-strength corrugated paper by using wastepaper

A production process and corrugated paper technology, applied in the processing of waste paper, pulp by-product recycling, paper, etc., can solve the problems of fiber physical performance reduction, reduce investment and additives, and improve the quality of paper

Active Publication Date: 2019-03-29
东莞顺裕纸业有限公司
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Problems solved by technology

[0003] However, since the recovered waste paper may be waste cartons or waste cardboards produced through secondary papermaking or tertiary papermaking, the physical properties of fibers in waste paper will be greatly reduced. When using waste paper to produce corrugated paper, it must be Various chemicals are added in the su

Method used

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  • Production technology for producing high-strength corrugated paper by using wastepaper
  • Production technology for producing high-strength corrugated paper by using wastepaper
  • Production technology for producing high-strength corrugated paper by using wastepaper

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Embodiment Construction

[0058] The following are only preferred embodiments of the present invention, and therefore do not limit the protection scope of the present invention.

[0059] A production process for producing high-strength corrugated paper using waste paper, comprising the following steps,

[0060] In the pulping step, the recovered waste paper is put into the pulping bucket. The pulping bucket is preferably a double-D pulping bucket. The double-D pulping bucket has two plane-shaped sides to improve paper shredding efficiency and reduce fiber loss. Damage rate, inject the recycling water of the papermaking enterprise into the pulping bucket, and shred the strip-shaped waste paper into a slurry, and divide the slurry in the pulping bucket to obtain the waste paper slurry;

[0061] In the sludge sewage treatment step, the heavy slag is removed from the bottom of the crushing tank, the sewage and sludge in the heavy slag are separated through the mud-water separation equipment, the sludge is ...

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Abstract

The invention discloses a production technology for producing a high-strength corrugated paper by using wastepaper. The production technology comprises the following steps: re-pulping; low-concentration deslagging; low-concentration filter pressing; high-concentration deslagging; high-concentration filter pressing; grinding; screening; blending; paper manufacturing with pulp and molding; corona ionizing enhanced treatment; wet-paper drying and squeezing; first vacuum suction moving; secondary drying; surface corona sizing; surface sizing; third drying; rolling, thereby acquiring the end product of corrugated paper.

Description

technical field [0001] The invention relates to the technical field of using waste paper to produce corrugated paper, in particular to a production process for using waste paper to produce high-strength corrugated paper. Background technique [0002] It is of great significance to use waste paper to produce corrugated paper and recycle waste paper to reduce the production cost of corrugated paper while protecting the ecological environment. [0003] However, since the recovered waste paper may be waste cartons or waste cardboards produced through secondary papermaking or tertiary papermaking, the physical properties of fibers in waste paper will be greatly reduced. When using waste paper to produce corrugated paper, it must be Various chemicals are added in the subsequent papermaking process. The surface sizing process in the papermaking process is also one of the main links to improve the physical properties of the paper. Various chemicals are added to the surface sizing so...

Claims

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Application Information

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IPC IPC(8): D21F11/12D21H11/14D21C5/02D21H23/50D21H17/52D21H21/16D21C11/00
CPCD21C5/02D21C11/0007D21C11/0021D21F11/12D21H11/14D21H17/52D21H21/16D21H23/50Y02W30/64
Inventor 刘伟锋赖耀康刘志锋
Owner 东莞顺裕纸业有限公司
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