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Corrugated base paper moisture-proof process

A corrugated base paper and process technology, which is applied in the field of papermaking, can solve problems such as reduction of carton ring compression strength, quality accidents, and collapse of goods, and achieve the effects of reducing time waste, good water and moisture resistance, and improving the degree of gelatinization

Active Publication Date: 2019-10-18
TAIZHOU YONGFENG PAPER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Paper usually has a certain degree of water absorption, and the same is true for corrugated cartons. The process of cartons absorbing water vapor from the air is called dampness. The goods collapsed, causing quality accidents

Method used

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  • Corrugated base paper moisture-proof process
  • Corrugated base paper moisture-proof process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 Shown, a kind of corrugated base paper moisture-proof process, comprises the following steps:

[0039] S1 To make the gum base, first mix the starch with warm water at a ratio of 1:1. During the process of dissolving the starch, you need to add the starch while stirring to obtain a starch suspension solution, and then add glacial acetic acid to the starch solution to adjust the pH value to After 6-7, add ferrous sulfate of 15% starch weight to the starch suspension, and fully mix and stir.

[0040] After adding ferrous sulfate, the starch solution needs to be gelatinized. The specific operation method is: use steam as the heat source, first heat the starch solution to 65°C at a heating rate of 5°C / min, and then heat the starch solution at a heating rate of 3°C / min. Heat the starch solution to 90°C, then heat the starch solution to 95°C at a heating rate of 2°C / min, and keep it warm for 15 minutes to fully gelatinize the starch and obtain a gum base.

[...

Embodiment 3

[0050] A moisture-proof process for corrugated base paper, only adding polyvinyl alcohol accounting for 1% of the total weight of the diluted rubber base as a water-resistant agent, and the rest of the process conditions and steps are exactly the same as in Example 1.

Embodiment 4

[0052] A moisture-proof process for corrugated base paper, only adding phenolic resin accounting for 0.8% of the total weight of the diluted rubber base as a water-resistant agent, and the rest of the process conditions and steps are exactly the same as in Example 1.

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Abstract

The invention discloses a corrugated base paper moisture-proof process, relates to papermaking technology, and is used for solving the problem of high moisture regain rate of paper produced by a common process. The process comprises the following steps: preparing a glue dissolving starch and an iron ion salt in water, and performing heating gelatinization to obtain the glue base; diluting the glue diluting the glue base for standby application; preparing finished glue: adding a water-repellent agent to the diluted glue base to obtain the finished glue; and sizing pulp: spraying thefinished glue onto wet paper, and performing oven-drying to obtain corrugated base paper. The process has the following advantages and effects: the corrugated base paper produced by the process has better water-repellent and moisture-proof properties compared with ordinary corrugated paper because the corrugated base paper contains a water-repellent agent component, so that during the rainy season, the corrugated base paper is not easy to absorb moisture in air to generate softness, a corrugated carton is not easy to collapse, and thereby the purpose of reducing the incidence of quality accidents is achieved.

Description

technical field [0001] The invention relates to papermaking technology, in particular to a moisture-proof technique for corrugated base paper. Background technique [0002] Since the invention of papermaking, paper has played a revolutionary role in the progress of human civilization, and with the advancement of science and technology, the forms and uses of paper have become wider and wider. When used for printing, the smoothness and printability of the paper are generally required to be better. When used for packaging, there may be higher requirements for the strength and water resistance of the paper. [0003] According to the traditional process, the papermaking process is roughly as follows: first chop and boil the trees and grasses, and then grind the boiled plant fibers to fully disperse the fibers; then screen the pulp to remove impurities, bleach, and clean it. Pulping is carried out, that is, the fiber is picked up with a screen, and a thin layer of wet paper will ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F11/12D21H17/28D21H17/66D21H21/14D21H21/16
CPCD21F11/12D21H17/28D21H17/66D21H21/14D21H21/16
Inventor 周双
Owner TAIZHOU YONGFENG PAPER CO LTD
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