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Method for making corrugated paper

A manufacturing method and technology of corrugated paper, which is applied in the field of corrugated paper manufacturing, can solve problems such as insufficient moisture resistance and reduced strength, and achieve the effects of good paper surface properties, moisture resistance and high strength

Inactive Publication Date: 2015-03-25
NINE DRAGONS PAPER TAICANG LTD
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Problems solved by technology

Therefore, the existing corrugated paper usually has insufficient moisture resistance due to raw materials, production processes, etc., and the strength drops sharply after absorbing moisture, which cannot meet the needs of various environments for corrugated paper. Therefore, a moisture-resistant paper is urgently needed in the existing market. , high-strength corrugated paper

Method used

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with specific embodiments, so that those skilled in the art can better understand the present invention, so as to define the protection scope of the present invention more clearly.

[0021] A method for manufacturing corrugated paper according to an embodiment of the present invention includes the following steps:

[0022] (1) Prepare raw materials: select waxy waste paper as the raw material for corrugated paper;

[0023] Specifically, waxy waste paper is selected from:

[0024] Waste paper bales with more wax content selected from imported American waste paper;

[0025] Waste paper bales with less office cultural paper content in European waste paper; and

[0026] Class A national waste paper package.

[0027] In the feeding workshop, select white paper such as newsprint, newspaper, book paper, offset paper and coated paper in waste paper bales.

[0028] (2) Pulping: the pulp will be sc...

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Abstract

The invention provides a method for making corrugated paper. The method includes the following steps that first, wax-bearing waste paper is selected to be used as a raw material for making the corrugated paper; second, the wax-bearing waste paper is pulped, pulp is subjected to screening, purifying and pulping treatment, the ash content of the pulp is made to be smaller than 8%, and the beating degree of fibers is 35-40 degrees SR; third, cation rosin size, aluminum sulfate and wet strength agents are added into the pulp to be evenly mixed; fourth, forming, dehydrating, squeezing and drying are conducted to obtain semi-finished corrugated paper; fifth, the semi-finished paper is subjected to surface sizing treatment, wherein the glue solution contains polyvinyl alcohol; sixth, drying is carried out, so that the finished corrugated paper is obtained. The corrugated paper produced through the manufacturing method is good in moisture resistance and high in strength and has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of papermaking, and more particularly to a method for manufacturing corrugated paper. Background technique [0002] The high-strength corrugated paper produced at present has the phenomenon of absorbing moisture and softening after being placed for a long time, resulting in a decrease in the strength index of the base paper and a decrease in the pressure resistance of the produced cartons. Therefore, the existing corrugated paper usually has insufficient moisture resistance due to raw materials, production processes, etc., and the strength drops sharply after absorbing moisture, which cannot meet the needs of various environments for corrugated paper. Therefore, a moisture-resistant paper is urgently needed in the existing market. , High-strength corrugated paper. Contents of the invention [0003] In order to overcome the above-mentioned problems in the prior art, the present invention provides a method ...

Claims

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Application Information

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IPC IPC(8): D21F11/12D21H11/14D21H17/62D21H21/20
CPCD21F11/12D21H11/14D21H17/62D21H21/16D21H21/20
Inventor 曹超金程
Owner NINE DRAGONS PAPER TAICANG LTD
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