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Mildew-proof and fresh-keeping corrugated cardboard and preparation method thereof

A technology of corrugated cardboard and corrugated core paper, which is applied in the field of mildew-proof and fresh-keeping corrugated cardboard and its preparation, can solve the problems of poor preservation effect and short storage time of fruits and vegetables, improve reaction efficiency and raw material utilization rate, shorten fresh-keeping time, high The effect of specific surface area

Active Publication Date: 2020-07-21
常德市德源招商投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, general corrugated cardboard has poor preservation effect on fruits and vegetables, and the preservation time is short

Method used

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  • Mildew-proof and fresh-keeping corrugated cardboard and preparation method thereof

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preparation example Construction

[0031] The method for preparing the above mildew-resistant and fresh-keeping corrugated cardboard according to an embodiment of the present invention includes the following steps S1-S3:

[0032] S1. Form an anti-mildew coating on one side of the corrugated medium paper.

[0033] Specifically, the raw materials of each component are weighed according to the above ratio, mixed with water and pulped to obtain an anti-mold coating, and then coated on one side of the corrugated medium paper to form an anti-mold coating after drying.

[0034] S2. Coating the ethanol solution of hollow porous polymer microspheres on the side of the corrugated core paper away from the anti-mold coating, coating the slurry obtained by mixing the adsorbent with water on the side of the corrugated core paper away from the anti-mold coating, and drying Finally, a fresh-keeping coating is formed.

[0035] Thus, the fresh-keeping coating is composed of hollow porous polymer microspheres loaded with adsorbe...

Embodiment 1

[0044] One side of the corrugated core paper is coated with an anti-mold coating to form an anti-mold coating. The anti-mold coating includes 78% water-absorbing resin and 22% anti-mold agent, wherein the water-absorbing resin is composed of 7% polyvinyl alcohol 1788, 6% polyvinyl alcohol Vinyl alcohol 2488 and 87% methyl methacrylate - butyl acrylate - acrylic acid copolymer, antifungal agent is composed of 25% sodium ascorbate, 25% salicylamine and 50% carson.

[0045] Coating the ethanol solution of hollow porous polymer microspheres on the side of the corrugated core paper away from the anti-mildew coating, the hollow porous polymer microspheres are made of acrylic ester copolymer. The adsorbent was obtained by weighing each component according to the following mass percentages: 62% potassium permanganate, 27% methylcyclopropene, 8% chromium trioxide, 2% activated carbon and 1% montmorillonite. Mix the adsorbent with water to obtain a slurry, the mass percent concentration...

Embodiment 2

[0047] One side of the corrugated core paper is coated with an anti-mold coating to form an anti-mold coating. The anti-mold coating includes 78% water-absorbing resin and 22% anti-mold agent, wherein the water-absorbing resin is composed of 7% polyvinyl alcohol 1788, 6% polyvinyl alcohol Vinyl alcohol 2488 and 87% methyl methacrylate - butyl acrylate - acrylic acid copolymer, antifungal agent is composed of 25% sodium ascorbate, 25% salicylamine and 50% carson.

[0048] Coating the ethanol solution of hollow porous polymer microspheres on the side of the corrugated core paper away from the anti-mildew coating, the hollow porous polymer microspheres are made of acrylic ester copolymer. Mix potassium permanganate with water to obtain slurry, the mass percentage concentration of potassium permanganate is 0.5%, apply the slurry on the side of the corrugated core paper away from the anti-mildew coating, and then put it in an environment of 20°C for slow drying After 5 hours, put i...

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Abstract

The invention relates to a mold-proof refreshing corrugated paperboard and a preparation method thereof. The mold-proof refreshing corrugated paperboard comprises a corrugated inner paper, a corrugated core paper and a corrugated surface paper; one side close to the corrugated inner paper of the corrugated core paper is provided with a mold-proof coating; one side close to the corrugated surface paper of the corrugated core paper is provided with a refreshing coating; the refreshing coating is prepared from hollow porous polymer microspheres loaded with an absorbent; the absorbent comprises potassium permanganate; at least a part of absorbent is loaded inside the hollow porous polymer microspheres. The mold-proof coating of the mold-proof refreshing corrugated paperboard can be used for restraining growth of mold in a package; on the premise that fruits and vegetables are not pretreated, the fruits and vegetables can be prevented from molding, the refreshing coating can be used for effectively removing ethylene, meanwhile, the photosynthesis of the fruits and vegetables are not influenced, the preservation effect is enhanced, and the preservation time is prolonged.

Description

technical field [0001] The invention relates to the field of mildew-proof and fresh-keeping technology, in particular to a mildew-proof and fresh-keeping corrugated cardboard and a preparation method thereof. Background technique [0002] Fresh fruits and vegetables are important sources of daily vitamins, minerals and dietary fiber, and have unique shapes, colors, aromas and tastes. The tissues of fruits and vegetables have high water content and are soft and tender, but they are perishable and degenerate, and they are not resistant to storage. After harvesting, they are prone to water and lose their freshness, resulting in reduced quality and even loss of commodity value and nutritional value. The demand for fruits and vegetables is second only to grain in the world. After years of development, my country has become the largest producer of fruits and vegetables in the world. With abundant germplasm resources and a long history of cultivation, it is the birthplace of many k...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B29/00B32B29/08A23B7/152
CPCA23B7/152B32B29/005B32B29/08B32B2250/26B32B2255/12
Inventor 余赞钟文张勇军田璐韦雪雪罗臻杜建军
Owner 常德市德源招商投资有限公司
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