Production method of dampproof copy paper

A production method and technology of copy paper, which are applied in the fields of pulp beating method, pulp beating/refining method, special paper, etc., can solve the problems of easy moisture absorption, lint and powder loss, and poor sizing effect of copy paper, and achieve Improve stiffness and moisture resistance, enhance sizing effect, and improve surface smoothness

Inactive Publication Date: 2019-03-01
福建省晋江优兰发纸业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Therefore, in view of the above content, the present invention provides a production method of moisture-proof copy paper, which solves the defects of copy paper in the prior art that are easy to absorb moisture, low in strength, poor in sizing effect, and easy to shed hair and powder.

Method used

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  • Production method of dampproof copy paper

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Effect test

Embodiment 1

[0034] A method for producing moisture-proof copy paper includes the following processing steps: (1) Preparation of raw materials: stainless steel liner waste paper, softwood pulp, deinked pulp, starch modified talc, cationic rosin glue, AKD sizing agent, Coniferous wood pulp: stainless steel lined paper, waste paper: weight ratio of deinked pulp = 1:4:5; (2) Beating and refining: coniferous wood pulp fiber is longer, choose Dandong Refining Mill Cutting Fin series grinding discs, using " “Strike fast” method, control the beating degree 35°SR, the wet weight is 4.0g, the stainless steel liner waste paper and the deinked pulp fiber are shorter, and the fibers are deflated and mixed and refined according to the ratio. The soft fin series of Dandong Mill Refining sheet adopts the method of "light knife and slow beating" to reduce fiber cutting, control the beating degree to 30°SR, and the wet weight is 2.5g; (3) Paper machine papermaking: send the slurry after refining and beating ...

Embodiment 2

[0037] A method for producing moisture-proof copy paper includes the following processing steps: (1) Preparation of raw materials: stainless steel liner waste paper, softwood pulp, deinked pulp, starch modified talc, cationic rosin glue, AKD sizing agent, Coniferous wood pulp: stainless steel lined paper, waste paper: weight ratio of deinked pulp = 1:4:5; (2) Beating and refining: coniferous wood pulp fiber is longer, choose Dandong Refining Mill Cutting Fin series grinding discs, using " The method of "heavy knife quick hit", control the beating degree 40°SR, the wet weight is 5.0g, the stainless steel lining paper waste paper and the deinked pulp fiber are shorter, and the fibers are deflated and mixed and refined according to the ratio. The soft fin series of Dandong Refining Mill is selected. Refining sheet adopts the method of "light knife and slow beating" to reduce fiber cutting, control the beating degree of 35°SR, and the wet weight is 3.0g; (3) Paper machine papermakin...

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Abstract

The invention relates to the field of papermaking, provides a production method of dampproof copy paper and solves the problem that the copy paper absorbs moisture easily and is low in strength, poorin glue applying effect and prone to linting and powder falling in the prior art. The method comprises the following processing steps: (1) raw material preparation; (2) beating and grinding into pulp;(3) papermaking by a paper making machine: the pulp obtained after beating and grinding is fed into a pulp blending tank for pulp blending, and then the pulp is processed by a pre-papermaking tank, aslushing tank, a high box, a headbox, a mesh, a squeezing part and a drying cylinder and subjected to calendering processing.

Description

Technical field [0001] The invention relates to the field of papermaking, in particular to a method for producing moisture-proof copy paper. Background technique [0002] With the improvement of office automation, electrostatic photocopying technology has been popularized and promoted throughout the country. The demand for copy paper is increasing. The demand range is not only as special paper for document copying and data file storage, but also for product promotion and advertising. Design and many other aspects are widely used. In the rainy season in southern my country and the high humidity environment in summer, electrostatic copy paper is not easy to store for a long time, it is easy to absorb moisture, and the strength is reduced. The stiffness decreases quickly, which also makes it easy to fold in the printing with faster printing speed, especially when it is glued to the photoconductor (rotating drum) and cannot be separated, resulting in light images and handwriting, la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21D1/02D21D1/34D21F11/00D21F5/04D21H21/16D21H21/14
CPCD21D1/02D21D1/34D21F5/04D21F11/00D21H21/14D21H21/16D21H27/00
Inventor 赖代钾王远远肖应龙
Owner 福建省晋江优兰发纸业有限公司
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