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Waterproof packing cardboard and producing method thereof

A technology for packaging cardboard and a production method, which is applied in the direction of wrapping paper, wrapping paper, packaging, etc., can solve problems affecting product packaging quality, rising packaging costs, deformation of plastic plates, etc., and achieves convenience for recycling and recycling, and is beneficial to environmental protection. The effect of stable packaging performance

Inactive Publication Date: 2007-09-19
武汉市江夏区江南实业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two packaging materials have been used in the steel industry for many years, but because steel and plastic are non-renewable resources, the price of these materials has increased significantly in recent years, resulting in a sharp increase in packaging costs
In addition, thin steel plates are used as product packaging materials, which are prone to rust after being stored for a certain period of time.
The plastic board is easily deformed and brittle due to the influence of the climate.
The existence of these problems directly affects the packaging quality of the product

Method used

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  • Waterproof packing cardboard and producing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take 6 parts of alkyl ketene dimer with a solid content of 12% and 1 part of polyamide epoxy resin with a solid content of 15% by weight, mix them evenly at room temperature, and prepare a composite water repellent for later use;

[0018] The composite water repellent of 3.0% by weight (that is, 3.0% of the pulp pulp) is added to the pulp in the papermaking process to prepare waterproof paper 2;

[0019] Take 3 layers of waterproof paper, glue them layer by layer with adhesive on the equipment, and dry them at 80-100℃ to make composite waterproof paperboard with a thickness of 1.5-2.0mm;

[0020] One side (outside) of the composite waterproof paperboard is coated with a layer of colored surface water repellent 1 (appropriate amount), and dried at 50-80°C;

[0021] A layer of vapor phase corrosion inhibitor 3 is coated on the other side (inner side) of the composite waterproof paperboard to prepare a waterproof and rust-proof packaging paperboard.

Embodiment 2

[0023] Take 5 parts of alkyl ketene dimer with a solid content of 15% and 1 part of polyamide epoxy resin with a solid content of 13% by weight, mix them evenly at room temperature, and prepare a composite water repellent for later use;

[0024] 2.25% of the composite water repellent is added to the pulp in the papermaking process to prepare waterproof paper 2 for later use;

[0025] Take 4 layers of waterproof paper, bond them layer by layer with adhesive on the equipment, and dry them at 80 to 100 °C to make composite waterproof paperboard with a thickness of 2.5 to 3.0 mm;

[0026] One side of the composite waterproof paperboard is coated with a layer of colored surface water repellent 1 (appropriate amount), and dried at 50-80°C.

[0027] A layer of vapor-phase corrosion inhibitor 3 can be coated on the other side of the composite waterproof paperboard to prepare a waterproof and rust-proof packaging paperboard.

Embodiment 3

[0029] Take 4 parts of alkyl ketene dimer with a solid content of 15% and 1 part of polyamide epoxy resin with a solid content of 15% by weight, mix them evenly at room temperature, and prepare a composite water repellent for later use;

[0030] 1.5% of the composite water repellent is added to the pulp in the papermaking process to prepare waterproof paper;

[0031] Take 6 layers of waterproof cardboard, glue them layer by layer with adhesive on the equipment, and dry them at a temperature of 80-100℃ to make a composite waterproof cardboard with a thickness of 3.5-4mm;

[0032] One side (outside) of the composite waterproof paperboard is coated with a layer of colored surface water repellent (appropriate amount), and dried at 50-80°C;

[0033] A layer of vapor phase corrosion inhibitor is coated on the other side (inner side) of the composite waterproof paperboard to prepare a waterproof and rust-proof packaging paperboard.

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Abstract

The present invention relates to a waterproof and antirust packaging paperboard and a manufacturing method thereof. Said method comprises coating one side of a waterproof paperboard with a layer of surface water-resistance agent, wherein said waterproof paperboard is made of a paper board containing a composite water-resistance agent prepared by mixing alkyl ketene dimmer and polyamide epoxy resin with a proportion of 4-6:1 by weight. The beneficial effects in accordance with the present invention are as follows: 1, the waterproof paperboard manufactured by a multi-layer recombination not only exhibit better intensity, tenacity and impact resistance, but also has excellent waterproof and damp proof insulation performances, and further exhibits better antirust performance after being coated with a vapor phase inhibitor, then said paperboard has excellent packaging performances which is stable, and the packaging requests and outdoor storage requests can be satisfied by packaging steel (coil) sheet materials with the waterproof paperboard in accordance with the present invention; 2, the manufacturing cost is low ans the source of the raw material is extensive; 3, said waterproof paperboard can be recovered and recycled easily, and is naturally degradable, and then is environment-friendly.

Description

technical field [0001] The invention relates to a packaging board with waterproof and rust-proof functions, in particular to a waterproof and rust-proof packaging board used for packaging metal materials such as steel sheet steel coils and a manufacturing method thereof. Background technique [0002] At present, most of the steel coil steel sheets produced in the steel industry are packed with thin steel sheets or plastic sheets. The above two packaging materials have been used in the steel industry for many years, but since steel and plastic are non-renewable resources, the prices of these materials have increased significantly in recent years, resulting in a sharp rise in packaging costs. In addition, thin steel plates are used as product packaging materials, which are prone to rust after being stored for a certain period of time. The plastic plate is susceptible to deformation and brittle cracking due to the influence of climate. The existence of these problems directly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/10D21H27/24D21H27/28D21H27/30B32B29/06B31F1/00
Inventor 杜兴初王菊珍刘雄文潘启顺潘启来
Owner 武汉市江夏区江南实业有限公司
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