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Lightweight printing paper and preparation method thereof

A printing paper and light technology, applied in the field of light printing paper and its preparation, can solve the problems of low smoothness, high roughness of light printing paper, large difference between two sides, etc. performance, reducing production costs

Pending Publication Date: 2022-03-01
GOLD EAST PAPER JIANGSU
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a light printing paper and its preparation method to solve the problems in the prior art that the light printing paper has high surface roughness, low smoothness and large difference between two sides

Method used

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  • Lightweight printing paper and preparation method thereof
  • Lightweight printing paper and preparation method thereof
  • Lightweight printing paper and preparation method thereof

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preparation example Construction

[0021] see figure 1 , figure 1 It is a schematic flow diagram of an embodiment of the preparation method of light printing paper of the present invention, and the preparation method of light printing paper of this embodiment comprises the following steps:

[0022] Step S11: Obtain the sedimentation tank sludge in the coated paper production wastewater treatment system, pretreat the sedimentation tank sludge, and obtain recycled sludge from the coated paper system.

[0023] In the wastewater treatment system of coated paper production, the sludge from the settling tank is collected and pretreated to obtain the recycled slurry from the coated paper system.

[0024] Wherein, due to the particle size of the sedimentation tank slurry in the coated paper production wastewater treatment system is small, this step is by reclaiming the sedimentation tank slurry in the coated paper production wastewater treatment system, and the obtained coated paper system reclaims the slurry. Act as...

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Abstract

The invention discloses light-weight printing paper and a preparation method thereof.The preparation method of the light-weight printing paper comprises the steps that settling tank slurry in a coated paper production wastewater treatment system is obtained, the settling tank slurry is pretreated, and coated paper system recycled slurry is obtained; the method comprises the following steps: obtaining coating broke, and pretreating the coating broke to obtain coating broke paper pulp; the method comprises the following steps: carrying out raw paper making on mixed pulp comprising pulp recycled by a coated paper system, coating waste paper pulp, chemimechanical pulp, needlebush chemical pulp, filler and a chemical additive to obtain raw paper; and the base paper is coated with the coating, so that the light printing paper is obtained. Through the preparation method of the light paper, the smoothness of the light paper can be improved under the condition that the bulk of the light paper is guaranteed, and then the surface feeling and the printing performance of the light paper are improved.

Description

technical field [0001] The invention relates to the technical field of paper preparation, in particular to a light printing paper and a preparation method thereof. Background technique [0002] Light weight printing paper, referred to as light weight paper or Monken paper, is a kind of offset printing paper, which has high thickness, stiffness and opacity, soft color, rich in natural characteristics, can protect eyesight, is light in weight, saves materials and At the same time, it has good printability and can well meet the printing requirements of high-speed rotary machines. Therefore, light printing paper has become a paper type with rapid development in my country. As a new type of printing paper, lightweight printing paper has been used more and more widely. [0003] Lightweight printing paper has the following characteristics: First, high bulkiness, light printing paper of the same weight has a larger printing area than general offset printing paper. Second, the col...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H11/14D21H11/10D21H17/01D21H17/67D21H19/38D21H19/40D21H19/84D21F11/00
CPCD21H27/00D21H11/14D21H11/10D21H17/01D21H17/675D21H19/385D21H19/40D21H19/84D21F11/00
Inventor 闫培养於旺盛朱叶峰芦海刘志军
Owner GOLD EAST PAPER JIANGSU
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