Durable antibacterial ivory board and production method thereof

Abstract

The invention relates to the technical field of durable ivory board processing, and concretely relates to a durable ivory board. The durable ivory board comprises raw paper and a coating layer, and the coating layer comprises, by weight, 50-80 parts of nanometer calcium carbonate, 1-5 parts of microcrystalline cellulose, 1-5 parts of silica gel powder, 25-45 parts of modified starch, 0.5-2 parts of grapefruit seed extract, 0.1-0.5 part of a dispersing agent and 1-3 parts of a defoaming agent. The invention also provides a production method of the durable ivory board. Pure natural plants are used as antibacterial components and are compounded to obtain the coating layer, and the surfaces of a surface layer and a bottom layer are coated with the coating layers, so the durable ivory board hasan antibacterial effect, is natural and pollution-free, and has no potential harm to human bodies; and the modified starch added into the coating layer has no corrosivity, improves the durability ofthe ivory board, and also improves the adhesiveness of the coating layer and the paper base.

Description

technical field [0001] The invention relates to the technical field of white cardboard processing, in particular to a durable antibacterial white cardboard and a preparation method thereof. Background technique [0002] White cardboard is a kind of white cardboard made of thick and strong pure high-quality wood pulp, after calendering or embossing treatment, it is mainly used for printing substrates for packaging and decoration. Classified by purpose, there are special special papers, such as single-sided coated white cardboard used for cigarette packaging called cigarette cards, uncoated base paper used for liquid food packaging called liquid food packaging paper, various anti-counterfeiting identification papers, etc. Others are coated white cardboard used for packaging various commodities, such as packaging wine bottles, cosmetics, medicines, health care products, chocolate or desserts, dry food, solidified or frozen food, tea, coffee, clothing, toys, calligraphy and pain...

AI Technical Summary

Problems solved by technology

Today, when green and environmental protection become the focus of attention, people realize that a large number of organic antibacterial materials are harmful to the human body and the environment. While using them as antibacterial agents, there is no guarantee that they will not harm human health, especially when they are applied to the human body. In products with frequent contact, more careful research is required, so the use of organic antibacterial agents is limited

[0004] The invention patent with the patent number of 200620113237.1 discloses an antibacterial paper coated with an antibacterial layer on the upper and lower surfaces of the paper fiber layer. The antibacterial layer is a hydroxyapatite inorganic antibacterial agent containing silver and zinc ions and surface sizing Agent mixed composition; due to the high oxidation activity of zinc ions, it is easy to chemically react with substances in the air and affect its antibacterial effect, and hydroxyapatite is used as the carrier of silver and zinc ions, because the specific gravity of hydroxyapatite is too large, reaching 3.2g / cm 3 , which increases the specific gravity of the paper, affects the printing activity of the paper base, and causes troubles in subsequent processing and use; and the inorganic antibacterial agent is coated on the surface of the paper base for a long time, which is potentially corrosive to the paper base, and has no effect in a short time , when the paper base is damp, the corrosivity increases, making the paper base moldy and poor in durability

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