Paper added with tobacco stalk and preparation method and device thereof

Abstract

The invention provides paper added with tobacco stalk and a preparation method and device thereof. The paper added with the tobacco stalk includes a body paper layer; the body paper layer includes a surface paper layer and a backing paper layer; at least one of the surface paper layer and the backing paper layer is prepared from tobacco stalk powder, and the mass percentage of the tobacco stalk powder is 0.01-30% of the raw materials of the layer where the tobacco stalk powder is located. According to the paper added with the tobacco stalk, a proper amount of tobacco stalk powder is added intopapermaking slurry, the paper loose depth is increased remarkably and the manufacturing cost is remarkably lowered on the condition that the paper strength is not changed greatly, the tobacco stalk does not need to be cooked in the preparation process, and chemical wastewater generated in the production process is reduced.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to paper added with tobacco stalks, a preparation method and a device thereof. Background technique [0002] At present, China is a big country in tobacco leaf planting and tobacco production, but there are not many ways to utilize non-tobacco leaf resources at this stage, and the conditions for industrialization have not yet been formed, resulting in a lot of waste of resources. Every year, 1.5 to 1.6 million tons of tobacco stalks have no way out. Tobacco stalks are rich in lignin, cellulose and nicotine. Tobacco stalks are burned by tobacco farmers as fuel. The burning of tobacco stalks is not only easy to spread poison, but also easy to pollute the air in rural areas and surrounding environments. [0003] In order to make full use of tobacco stalks, it has been proposed to use tobacco stalks for papermaking or fiberboard. For example, Chinese patent application CN1059946 di...

AI Technical Summary

Problems solved by technology

Tobacco stalks are rich in lignin, cellulose and nicotine. Tobacco stalks are burned by tobacco farmers as fuel. The burning of tobacco stalks is not only easy to spread poison, but also easy to pollute the air in rural areas and surrounding environments.

[0003] In order to make full use of tobacco stalks, it has been proposed to use tobacco stalks for papermaking or fiberboard. For example, Chinese patent application CN1059946 discloses a "process method for making pulp from whole tobacco stalks by ammonium method". Tobacco straw is used, and the preparation process includes material preparation process, cooking process, pulping process, washing process, and beating process. However, since the papermaking process usually needs to pulp the main raw material wood, the papermaking process with tobacco straw as the main papermaking raw material requires Cooking and pulping tobacco stalks not only requires a large amount of chemicals, but also produces a large amount of waste water, causing environmental pollution. For example, the disclosed patent uses the neutral imine method to cook tobacco stalks, which will produce a large amount of chemicals. waste water, environmental damage

In addition, compared with the paper with ordinary wood pulp as the main raw material, the paper strength of the all-tobacco straw paper with tobacco straw as the main raw material will be significantly reduced, which will affect the performance of the paper.

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