Pulping method for reconstituted tobacco, pulp, reconstituted tobacco and application

Abstract

The invention belongs to the field of tobacco products, and relates to a pulping method for reconstituted tobacco, which comprises the following steps of: (1) performing extraction and solid-liquid separation on a tobacco raw material to obtain a solid-phase substance, and grinding the solid-phase substance into pulp by using a high-concentration disc mill, wherein the content of absolutely dry substances in the solid-phase substance is 15-21%, and the gap of a grinding disc is 0.5-1 mm; (2) at the pH value of 3-7 and at the temperature of 20-43 DEG C, using an activated pectinase preparation to perform enzymolysis on the pulp for 0.5-5 hours to obtain an enzymolysis product, wherein 500-6000 u of enzyme activity is adopted for each kilogram of absolutely dry pulp; (3) grinding the enzymolysis product into thick liquid by a high-concentration disc mill, wherein the gap of a grinding disc is 0.3-0.45 mm; and (4) diluting the obtained pulp until the concentration is 0.8%-3.5%, and grinding the pulp by using a low-concentration refiner, wherein the gap of a grinding disc is 0.1-0.25 mm. The invention further relates to the prepared pulp, reconstituted tobacco and application. According to the method, the fiber yield, the beating degree and the fiber crimp rate of the tobacco pulp are improved, and the pectin content of the tobacco pulp is reduced.

Description

technical field [0001] The invention belongs to the field of tobacco products, and in particular relates to a pulping method for reconstituted tobacco leaves, and also relates to the prepared slurry, reconstituted tobacco leaves and applications. Background technique [0002] Papermaking reconstituted tobacco is a reconstituted tobacco product that uses tobacco stems, shredded tobacco pieces, tobacco powder, etc. as tobacco raw materials, and draws on traditional pulping and papermaking techniques. Usually, the preparation process of reconstituted tobacco leaves by the papermaking method includes: adding water to extract the tobacco raw materials, and then separating the solid and liquid from the extracted mixture, and the separated liquid phase is concentrated and prepared as a coating liquid, and the separated solid The phase is pulped into tobacco slurry, and the tobacco slurry is made into a base sheet, and then coated with a coating solution on the surface of the base s...

AI Technical Summary

Problems solved by technology

The impact of pectin on the pulping process is mainly in the following three aspects: one, pectin will increase the bonding strength of fibers in the tobacco pulp, reduce the dispersion of fibers in the raw material pulping process, and is not conducive to improving the fiber yield; , after pulping, pectin will still adhere to the fibers and bundled fibers, maintaining the inherent shape of the fibers, which is not conducive to improving the curling rate of the fibers; third, pectin has high water absorption and swelling properties and elasticity. This is very unfavorable for the realization of fiberization of high-consistency pulping and fiber cutting of low-consistency pulping, which limits the improvement of beating degree of tobacco pulp as a whole

For the above-mentioned problems caused by pectin, the general solution is to add pectinase before pulping, but the fiber yield, fiber crimp and beating degree of the tobacco pulp obtained in this way are still low

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