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Waterproof compression-resistant high-strength corrugated paper and preparation process thereof

A preparation process and technology of corrugated paper, applied in the field of corrugated cardboard, can solve problems such as unsatisfactory bonding strength, water resistance, difficulty in stacking, damage, etc.

Inactive Publication Date: 2018-08-14
陈良地
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The quality of corrugated cardboard directly affects the quality of corrugated boxes. The environmental protection of corrugated paper lies in its low cost, light weight, easy processing, high strength, excellent printing adaptability, convenient storage and transportation, etc., and it can be recycled and recycled. There are some defects. Corrugated cardboard boxes will be affected by external force and atmosphere during storage and transportation. Therefore, the requirements for the bonding strength and water resistance of corrugated cardboard are also high.
However, the strength of existing corrugated cardboard is not high, the damage resistance is poor, and it is not easy to stack, and the bonding strength and water resistance are not very satisfactory, which may easily cause the corrugated box to absorb moisture and become soft, the edge is degummed and warped, and deformed, resulting in product deterioration and damage.

Method used

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  • Waterproof compression-resistant high-strength corrugated paper and preparation process thereof
  • Waterproof compression-resistant high-strength corrugated paper and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A water-resistant and compression-resistant high-strength corrugated paper, which is provided with two or more layers of corrugated paper, and adjacent corrugated papers are bonded by an adhesive; the adhesive includes the following components in percentage: corn flour 24 %, stabilizer 9%, borax 14%, melamine 4%, activated magnesium oxide 14%, caustic soda 7%, antioxidant 2%, water-resistant additive 6%, and the balance is water.

[0025] Specifically, the bonding surface width of the adhesive is 0.5 mm.

[0026] Specifically, the water-resistant additive is phosphate.

[0027] A preparation process for water-resistant and compression-resistant high-strength corrugated paper, comprising the following steps:

[0028] 1) Add corn flour, melamine, antioxidant and 20% water into the No. 1 mixing drum and stir. The mixing temperature is 72°C. After stirring for 10 minutes, raise the temperature to 100°C at a heating rate of 8°C / min, and stir for 20 minutes. After cooling t...

Embodiment 2

[0035] A kind of water-resistant and compression-resistant high-strength corrugated paper and its preparation process as described in Example 1, wherein part of the process can also use the following steps:

[0036] The binder includes the following components by percentage: 30% corn flour, 10% stabilizer, 15% borax, 1% melamine, 16% active magnesium oxide, 5% caustic soda, 2% antioxidant, Water additive 10%, balance is water.

[0037] In step 1), the mixing temperature is 61° C., and the heating rate is 5° C. / min.

[0038] In step 2), the mixing temperature is 105° C., and the heating rate is 8° C. / min.

[0039] In step 3), the mixing temperature is 94°C.

[0040] In step 4), the mixing temperature is 110°C.

Embodiment 3

[0042] A kind of water-resistant and compression-resistant high-strength corrugated paper and its preparation process as described in Example 1, wherein part of the process can also use the following steps:

[0043] The binder includes the following components by percentage: corn flour 20%, stabilizer 2%, borax 10%, melamine 5%, activated magnesium oxide 10%, caustic soda 8%, antioxidant 2%, anti-oxidant Water additive 5%, balance is water.

[0044] In step 1), the mixing temperature is 80° C., and the heating rate is 5° C. / min.

[0045] In step 2), the mixing temperature is 90° C., and the heating rate is 10° C. / min.

[0046] In step 3), the mixing temperature is 98°C.

[0047] In step 4), the mixing temperature is 65°C.

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Abstract

The invention provides waterproof compression-resistant high-strength corrugated paper and a preparation process thereof. Borax, active magnesium oxide, sodium hydroxide, a water-resistant additive and the like are added in a binder; in preparation, at first, all the components are separately made into a first material, a second material, a third material and a fourth material, and then the fourthmaterial is baked to obtain the binder; in preparation, the proportion of all the components and the processing parameters (such as the mixing temperature and the heating speed) of all processes needto be strictly controlled, control of the heating speed is important especially so as to ensure that all the components can be subjected to mixed reaction sufficiently and improve the performance ofthe binder, and a bound corrugated paperboard has high compression strength and water resistance. Tests prove that the compression strength of four layers of corrugated paperboards is up to 86 kN / m, aproduct has high bearing capability, and the falling time of a weight is up to 242-253 h in testing the water resistance.

Description

technical field [0001] The invention relates to the field of corrugated cardboard, in particular to a water-resistant and compression-resistant high-strength corrugated cardboard and a preparation process thereof. Background technique [0002] The quality of corrugated cardboard directly affects the quality of corrugated boxes. The environmental protection of corrugated paper lies in its low cost, light weight, easy processing, high strength, excellent printing adaptability, convenient storage and transportation, etc., and it can be recycled and recycled. There are some defects. Corrugated cardboard boxes will be affected by external forces and atmosphere during storage and transportation. Therefore, the requirements for the bonding strength and water resistance of corrugated cardboard are also high. However, the strength of existing corrugated cardboard is not high, the damage resistance is poor, it is not easy to stack, and the bonding strength and water resistance are not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B31F1/20B31F5/04
CPCB31F1/20B31F5/04
Inventor 陈良地安祖国
Owner 陈良地