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Anti-mildew cardboard modified by bentonite and preparation method thereof

A cardboard and land reform technology, applied in the field of cardboard, can solve the problems of damaging the waterproof effect of the coating layer, reducing the mechanical strength of the carton, and reducing product quality.

Active Publication Date: 2018-03-30
铜陵锋帆彩色印务股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mildew will not only damage the waterproof effect of the paint layer and reduce the mechanical strength of the carton, but also cause a decline in the quality of the products inside the carton.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0016] The invention provides a method for preparing a bentonite-modified anti-mold paperboard, including:

[0017] 1) The process of decocting Chinese herbal medicines in water to prepare Chinese herbal medicine extracts;

[0018] 2) The process of activating bentonite, plant ash, sodium chloroplatinum and molybdenum disulfide in the presence of ultraviolet rays to obtain an activated product;

[0019] 3) Under acidic conditions, the process of mixing the activated substance with the amino acid and then undergoing modification treatment to obtain the modified activated substance;

[0020] 4) Perform contact reaction of acrylic emulsion, polystyrene, dioctyl phthalate, aluminum oxide, boron nitride and sodium nitrite, and then add emulsifier, modified activator, Chinese herbal medicine to the reaction system The process of mixing liquids to prepare anti-mold paint;

[0021] 5) The process of coating the anti-mold coating on the surface of the cardboard body and drying to prepare the be...

Embodiment 1

[0035] 1) Combine mugwort leaves, Qianhu, Platycodon grandiflorum, fried Suzi, Chuanxiong, Codonopsis, Angelica, Pueraria lobata, golden boiling grass, Coptis, and water according to 100:55:68:58:32:95:39:28:68:92: Mix at a weight ratio of 500, and decoct at 160°C for 5 hours to prepare a Chinese herbal medicine extract;

[0036] 2) In the presence of ultraviolet rays with a wavelength of 230nm, mix bentonite, plant ash, sodium chloroplatinate and molybdenum disulfide in a weight ratio of 100:59:22:35, and perform activation treatment at 80°C for 14h to obtain an activated product;

[0037] 3) Under the condition of pH 5, mix the activated product with amino acid (weight ratio 100:55) and modify it at 55°C for 8 hours to obtain a modified activated product;

[0038] 4) Mix acrylic emulsion, polystyrene (weight-average molecular weight of 5000), dioctyl phthalate, aluminum oxide, boron nitride and sodium nitrite, and mix them at 100°C and a vacuum of 8MPa The contact reaction is carr...

Embodiment 2

[0042] 1) Combine mugwort leaves, cephalopectin, platycodon, fried sesame seeds, chuanxiong, codonopsis, angelica, kudzu root, golden boiling grass, coptis, and water according to 100:48:62:55:24:80:36:22:55:88: Mix at a weight ratio of 400, and decoct at 150°C for 4 hours to prepare a Chinese herbal medicine extract;

[0043] 2) In the presence of ultraviolet light with a wavelength of 200nm, mix bentonite, plant ash, sodium chloroplatinate and molybdenum disulfide in a weight ratio of 100:55:14:32, and perform activation treatment at 75°C for 12h to obtain an activated product;

[0044] 3) Under the condition of pH 4, the activated product is mixed with amino acid (weight ratio 100:47) and then modified at 50°C for 6 hours to obtain a modified activated product;

[0045] 4) Mix acrylic emulsion, polystyrene (weight-average molecular weight of 3000), dioctyl phthalate, aluminum oxide, boron nitride and sodium nitrite, and mix them at 95°C and a vacuum of 5MPa The contact reaction i...

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Abstract

The invention discloses a bentonite-modified mould-proof cardboard and a preparation method thereof. The preparation method includes 1), decocting Chinese herbal medicines in water to obtain Chinese herbal medicine extract; 2), in the presence of ultraviolet rays, activating bentonite, plant ash, sodium chloroplatinate and molybdenum disulfide to obtain activators; 3), subjecting the activators and amino acids to modification under an acidic condition to obtain modified activators; 4), subjecting acrylic emulsion, polystyrene, dioctyl phthalate, aluminum oxide, boron nitride and sodium nitrite to contact reaction, and adding emulsifying agents, the modified activators and the Chinese herbal medicine extract into a reaction product with mixing to obtain a mould-proof coating; 5), applying the surfaces of a cardboard body with the mould-proof coating prior to drying so as to obtain the bentonite-modified mould-proof cardboard. The bentonite-modified mould-proof cardboard has the excellent mechanical, waterproof and antibacterial properties.

Description

Technical field [0001] The invention relates to paperboard, in particular to a bentonite-modified anti-mould paperboard and a preparation method thereof. Background technique [0002] Carton is the most common form of outer packaging for most products at present. It is the first line of defense to protect the appearance, function, and integrity of the product. Moreover, because water is the biggest culprit in the appearance and function of many products, the consumer The water resistance has extremely high requirements. [0003] The method to enhance the water resistance of the carton is mainly to apply a waterproof coating layer on the surface of the carton. The method of addition is mainly organic printing, manual painting, spraying, etc. Existing carton waterproof coatings generally contain a large amount of polymer. After the carton is used for a long time, the coating layer on the surface of the carton will become mildew. Due to mildew, it not only destroys the waterproof ef...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/10D21H21/14D21H19/64
CPCD21H19/64D21H21/14D21H27/10
Inventor 解和锋沐磊
Owner 铜陵锋帆彩色印务股份有限公司
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