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Mildew-resistant paperboard coating based on bentonite modification and a preparing method thereof

A technology of cardboard and soil reform, applied in the field of coatings, which can solve problems such as product quality degradation, damage to the waterproof effect of the coating layer, and reduction of the mechanical strength of the carton.

Inactive Publication Date: 2016-11-09
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

[0015] The invention provides a kind of preparation method based on bentonite-modified anti-mildew cardboard coating, comprising:

[0016] 1) The process of decocting Chinese herbal medicines in water to obtain Chinese herbal medicine extracts;

[0017] 2) In the presence of ultraviolet rays, the process of performing activation treatment with bentonite, plant ash, sodium chloroplatinate and molybdenum disulfide to obtain an activated product;

[0018] 3) Under acidic conditions, the process of mixing the activator with the amino acid and performing modification treatment to obtain the modified activator;

[0019] 4) Conduct a contact reaction of acrylic emulsion, polystyrene, dioctyl phthalate, aluminum oxide, boron nitride and sodium nitrite, and then add emulsifiers, modified activators, and Chinese herbal medicine extracts to the reaction system Liquid is mixed to make the process of anti-mold cardboard coating based on bentonite modification;

[0020] Among them, Chines...

Embodiment 1

[0033] 1) Put Artemisia argyi, Peucedanum, Campanulaceae, Fried Perilla, Chuanxiong, Codonopsis, Angelica, Pueraria, Golden Boil, Coptidis, and water according to 100:55:68:58:32:95:39:28:68:92: 500 weight ratio, and decocting at 160°C for 5 hours to obtain Chinese herbal medicine extract;

[0034] 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 14 hours to obtain an activated product;

[0035] 3) Under the condition of pH 5, the activated substance was mixed with amino acid (weight ratio 100:55) and modified at 55°C for 8 hours to obtain the modified activated substance;

[0036] 4) Mix acrylic emulsion, polystyrene (weight-average molecular weight: 5000), dioctyl phthalate, aluminum oxide, boron nitride and sodium nitrite, and mix them at 100°C and a vacuum of 8MPa The contact reaction was carried out at...

Embodiment 2

[0039] 1) Put Artemisia argyi, Peucedanum, Platycodon grandiflorum, Fried perilla, Chuanxiong, Codonopsis pilosula, Angelica, Pueraria lobata, Coptis chinensis, Coptis chinensis, water according to 100:48:62:55:24:80:36:22:55:88: 400 weight ratio mixed, and decocted at 150 ° C for 4 hours to obtain the Chinese herbal medicine extract;

[0040] 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 12 hours to obtain an activated product;

[0041] 3) Under the condition of pH 4, the activated substance was mixed with amino acid (weight ratio 100:47) and then modified at 50°C for 6 hours to obtain the modified activated substance;

[0042] 4) Mix acrylic emulsion, polystyrene (weight-average molecular weight: 3000), dioctyl phthalate, aluminum oxide, boron nitride and sodium nitrite, and mix them at 95°C and a vacuum...

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Abstract

Mildew-resistant paperboard coating based on bentonite modification and a preparing method thereof are disclosed. The method includes 1) adding Chinese herbal medicines into water, and decocting to prepare a Chinese herbal medicine extract, 2) activating bentonite, plant ash, sodium chloroplatinate and molybdenum disulfide under existence of ultraviolet ray to obtain activated compounds, 3) under an acidic condition, mixing the activated compounds with amino acids, and modifying to obtain modified activated compounds, and 4) subjecting acrylic acid emulsion, polystyrene, dicapryl phthalate, alumina, boron nitride and sodium nitrite to a contact reaction, adding an emulsifier, the modified activated compounds and the Chinese herbal medicine extract, and mixing to obtain the coating. The Chinese herbal medicines comprise argy wormwood leaves, hogfennel root, radix platycodonis, stir-fried perilla fruit, Sichuan lovage rhizome, tangshen, Chinese angelica, kudzu vine root, inula herb and rhizoma coptidis. The coating can be stably attached to the surface of paperboard bodies, and has excellent waterproof and antibacterial properties.

Description

technical field [0001] The invention relates to coatings, in particular to bentonite-based modified anti-mold cardboard coatings and a preparation method thereof. Background technique [0002] Carton is currently the most common form of outer packaging for most products, and it is the first line of defense to protect product appearance, function, integrity, etc., and because water is the biggest culprit that causes damage to the appearance and function of many products, consumers are very concerned about cartons. Water resistance has extremely high requirements. [0003] The method of enhancing the waterproofness of cartons is mainly to add a waterproof coating layer on the surface of the carton, and the method of adding coating is mainly organic printing, manual brushing, spraying, etc. Existing waterproof coatings for cartons generally contain a large amount of macromolecules. After the cartons are used for a long time, the coating layer on the surface of the cartons will...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D125/06C09D7/12C09D5/14
CPCC09D5/14C09D7/61C09D7/62C09D7/63C09D133/00C08L25/06C08K13/06C08K9/04C08K3/346C08K5/0058C08K5/12C08K2003/2227C08K2003/385
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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