Method for preparing tobacco sheets through tobacco waste materials by papermaking method

Abstract

The invention provides a method for preparing tobacco sheets through tobacco waste materials by a papermaking method, which comprises the following steps of: respectively soaking tobacco powder and mixtures of washed tobacco stems and crumbled tobacco leaves into water, carrying out extraction, respectively obtaining solid tobacco stems, tobacco leaf mixtures, solid smoke powder and two kinds of extraction liquid through solid and liquid separation, and combining two kinds of extraction liquid; regulating the tobacco stem and tobacco leaf mixtures obtained through extraction into the materialconcentration being 15 to 30 percent, and then carrying out defibering; regulating the defibered materials into the concentration being 6 to 12 percent and carrying out pulping treatment; diluting the solid smoke powder and the pulped pulp materials to the required concentration after mixing, and making the materials into substrates by a papermaking method after sieving; and concentrating the combined extraction liquid, using the concentrated extraction liquid as coating liquid to be coated on the substrates, and drying and cutting the substrates into tobacco sheet products. The preparation method provided by the invention has the advantages that the damage to material tissue structures in the preparation process is effectively reduced, the physical performance of the tobacco sheets is improved, the yield is high, and the energy consumption is low.

Description

technical field [0001] The invention relates to the production of tobacco sheets in the tobacco industry, in particular to a method for preparing tobacco sheets by papermaking using tobacco material waste. Background technique [0002] Tobacco sheet, also known as reconstituted tobacco leaf, is made of waste (including tobacco stems, tobacco dust and shredded tobacco leaves) produced during the cigarette making process, and processed by different processing methods to prepare thin sheets close to tobacco leaves, which can be reused in the production of cigarettes. The use of tobacco waste to produce tobacco sheets, on the one hand, can maximize the use of tobacco raw materials, reduce the consumption of raw materials in the tobacco industry, thereby reducing costs; Quality of products. Therefore, the development of tobacco sheets has practical significance for the tobacco industry. [0003] The production techniques of tobacco flakes mainly include rolling method, thick p...

AI Technical Summary

Problems solved by technology

Because the tobacco waste has short fibers and high content of miscellaneous cells, low-concentration beating has caused severe cutting and damage of fibers and miscellaneous cells. Poor, low filling value and high energy consumption during beating

However, if high-consistency refining is adopted to make the pulp meet the beating degree required by the paper machine, there are disadvantages such as large equipment investment and high energy consumption.

On the other hand, mixing fine tobacco powder with tobacco stems and tobacco leaves for soaking, extraction, and beating brings problems such as difficulty in material concentration and serious loss of tobacco powder.