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Method for improving ring crush compression resistance of corrugated paper

A corrugated paper ring and corrugated paper technology, which is applied in the field of corrugated paper processing, can solve the problems of limited strengthening effect, low ring sub-strength, and affecting normal use, and achieve the effects of expanding the scope of use, enhancing ring sub-strength, and improving stability

Inactive Publication Date: 2019-01-04
BENGBU AOTE CARTON MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Commonly used surface sizing agents are divided into natural polymer surface sizing agents and synthetic polymer surface sizing agents. Natural polymer surface sizing agents are mainly composed of starch, modified starch, modified cellulose, and proteins. Traditional The natural surface sizing agent has limited strengthening effect on cardboard, and its appearance performance is not good, and it is prone to lint and powder falling in printing, which limits its application range; synthetic polymer surface sizing agents mainly include styrene-mass There are four types of anhydride solution polymers (SMA), styrene-acrylic acid solution polymers (SAA), water-based polyurethane latex (PUD) and styrene-acrylic emulsion polymers (SAE), among which acrylate polymers are the most developed Fastest and most widely used product, because of its strong film-forming property, good oil resistance, good weather resistance, and the medium used is water, which meets the development requirements of today's green products; but there are still some products with low ring strength and certain water absorption Problems affect its normal use, therefore, further research and improvement are needed

Method used

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  • Method for improving ring crush compression resistance of corrugated paper

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Effect test

Embodiment 1

[0018] A method for improving the ring substrength of corrugated paper, applying surface reinforcing glue to the surface of corrugated paper, said surface strengthening glue comprising the following raw materials in parts by weight: 20 parts of modified starch, 5 parts of metakaolin-based oligomers stimulated by alkali, ( 4 parts of hydroxymethacrylate, 3 parts of 2-hydroxy-4-methoxybenzophenone, 1.2 parts of ethyl nicotinate, 8 parts of fatty alcohol polyoxyethylene ether, 4 parts of organic amine, 2 parts of additives, 16 parts of polycaprolactone polyol, 2.4 parts of sulfopropyl betaine, 200 parts of water;

[0019] Described additive is tributyl citrate;

[0020] The preparation method of described modified starch comprises the following steps:

[0021] (1) Mix the starch raw material with water equivalent to 7 times its weight, stir well to obtain a starch suspension, and then add 1.5% trichloroacetic acid and 0.2% dodecylphosphine to the starch raw material Acid, 0.55%...

Embodiment 2

[0028] A method for improving the ring substrength of corrugated paper, applying surface reinforcing glue to the surface of corrugated paper, said surface strengthening glue comprising the following raw materials in parts by weight: 18 parts of modified starch, 6 parts of metakaolin-based oligomers stimulated by alkali, ( 3 parts of hydroxymethacrylate, 4 parts of 2-hydroxy-4-methoxybenzophenone, 1.6 parts of ethyl nicotinate, 6 parts of fatty alcohol polyoxyethylene ether, 6 parts of organic amine, 1 part of additive, 18 parts of polycaprolactone polyol, 2.2 parts of sulfopropyl betaine, 200 parts of water;

[0029] The additive is trioctyl citrate;

[0030] The preparation method of described modified starch comprises the following steps:

[0031] (1) Mix the starch raw material with water equivalent to 8 times its weight, stir evenly to obtain a starch suspension, and then add 1.2% trichloroacetic acid and 0.3% dodecylphosphine to the starch raw material Acid, 0.7% dicumy...

Embodiment 3

[0038] A method for improving the ring substrength of corrugated paper, applying surface reinforcing glue to the surface of corrugated paper, said surface strengthening glue comprising the following raw materials in parts by weight: 22 parts of modified starch, 4 parts of metakaolin-based oligomers stimulated by alkali, ( 5 parts of hydroxymethacrylate, 2 parts of 2-hydroxy-4-methoxybenzophenone, 0.8 parts of ethyl nicotinate, 10 parts of fatty alcohol polyoxyethylene ether, 2 parts of organic amine, 3 parts of additives, 14 parts of polycaprolactone polyol, 2.6 parts of sulfopropyl betaine, 200 parts of water;

[0039] The additive is acetyl trioctyl citrate;

[0040] The preparation method of described modified starch comprises the following steps:

[0041](1) Mix the starch raw material with water equivalent to 6 times its weight, stir well to obtain a starch suspension, and then add 1.8% trichloroacetic acid and 0.1% dodecylphosphine to the starch raw material Acid, 0.4%...

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Abstract

The invention belongs to the technical field of corrugated paper, and particularly relates to a method for improving the ring crush compression resistance of corrugated paper. A surface reinforcing adhesive is applied to the surface of the corrugated paper, and the surface reinforcing adhesive comprises modified starch, alkali-activated metakaolin-based oligomer, (methyl)methacrylate, 2-hydroxyl-4-methoxyl benzophenone, ethyl nicotinate, fatty alcohol-polyoxyethylene ether, organic amine, an additive, polycaprolactone polyhydric alcohol, sulfopropyl glycine betaine and water. Compared with theprior art, the method has the advantages that the alkali-activated metakaolin-based oligomer and the modified starch cooperate, and the ring crush compression resistance of the corrugated paper can be effectively enhanced; ethyl nicotinate, fatty alcohol-polyoxyethylene ether, organic amine and polycaprolactone polyhydric alcohol cooperate, the stability of the surface reinforcing adhesive is improved, the water resistance of the corrugated paper is improved in cooperation with sulfopropyl glycine betaine and the additive, and the application range of the corrugated paper can be effectively widened.

Description

technical field [0001] The invention belongs to the technical field of corrugated paper processing, and in particular relates to a method for improving the ring substrength of corrugated paper. Background technique [0002] At present, most of the raw materials for domestic packaging paper are waste paper or mixed waste paper. Due to the poor quality of pulp raw materials and low mechanical strength, in order to expand the application range of packaging cardboard and reduce production costs, it is necessary to strengthen its mechanical properties. , to improve its mechanical strength, the surface sizing method is widely used in production. Surface sizing is a method of sizing the surface of paper or paperboard after the sheet is formed. The operation method of surface sizing is simple, which can not only improve the surface strength of the paper, but also improve the printing quality of the paper, and reduce the phenomenon of powder and slag falling off the paper during pri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/54D21H19/40D21H19/48D21H19/46D21H19/62D21H19/44D21H21/18D21H21/16
CPCD21H19/40D21H19/44D21H19/46D21H19/48D21H19/54D21H19/62D21H21/16D21H21/18
Inventor 赵斌
Owner BENGBU AOTE CARTON MACHINERY
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