Environment-friendly papermaking coating using biological latex

Abstract

The invention provides an environment-friendly papermaking coating using biological latex. The coating comprises the following components in percentage by weight: 10 to 20 percent of biological latex, 65 to 80 percent of heavy calcium carbonate and 1 to 15 percent of auxiliary material, wherein the biological latex is nanoscale modified starch, phosphate ester starch or modified soy protein. Paper produced by the environment-friendly papermaking coating using the biological latex has high printing surface intensity, high paper glossiness and printing glossiness and high food contact safety; by the produced environment-friendly papermaking coating, the cost of the papermaking coating is reduced, the quality of the paper can be improved when the coating is coated on the paper, the consumption of petroleum is reduced, the content of harmful substances in the coated paper is reduced, and the application of packaging paper is enlarged; and the coating is a real low-carbon environment-friendly papermaking coating.

Description

Technical field: [0001] The invention relates to a preparation method of an environment-friendly coating for papermaking. Background technique [0002] The existing market has higher and higher requirements for coated paper and cardboard. For packaging paper that is closely related to human life, it is required that it cannot contain harmful substances such as benzene series and other aromatic hydrocarbons. At present, most of the adhesives used for paper coating are based on Synthetic latex such as styrene-butadiene latex and styrene-acrylic latex are mainly used. The main raw materials of this synthetic latex are butadiene, acrylate and styrene. There are two disadvantages. One is that the raw material of synthetic latex is extracted from petroleum refining products. Petroleum is currently a relatively tense and important non-renewable resource in the world. With the rising price of petroleum, the price of synthetic latex for papermaking has gradually increased. Up to now,...

AI Technical Summary

Problems solved by technology

[0002] The existing market has higher and higher requirements for coated paper and cardboard. For packaging paper, which is closely related to human life, it is required not to contain harmful substances such as benzene series and other aromatic hydrocarbons. At present, most of the adhesives used for paper coating are based on Synthetic latex such as styrene-butadiene latex and styrene-acrylic latex are mainly used. The main raw materials of this synthetic latex are butadiene, acrylate and styrene. There are two disadvantages. One is that the raw material of synthetic latex is extracted from petroleum refining products. Petroleum is currently a relatively tense and important non-renewable resource in the world. With the rising price of petroleum, the price of synthetic latex for papermaking has gradually risen. Up to now, the price of synthetic carboxylated styrene-butadiene latex has risen to about 12,000 yuan per ton, resulting in coating The production cost of cloth paper has soared, which seriously restricts the development of coated paper; secondly, synthetic latex still contains toluene, ethylbenzene and other benzene series, which are volatilized during the papermaking and coating process, polluting the surrounding environment of the papermaking enterprise, and causing The formed paper causes pollution, and it is forbidden to package goods closely related to human beings such as clothing and cigarettes, which will also hinder the development of coated paper, so it is necessary to develop a low-cost and environmentally friendly coating for papermaking

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