Method for manufacturing reconstituted tobacco substrate by using dry method of paper making

Abstract

A method for manufacturing a reconstituted tobacco substrate by using a dry method of paper making comprises the following steps: after tobacco stems, plant fiber materials become short fibers by crushing and fiber dissolving, the short fibers are conveyed to forming head boxes to be broken up by wind, and the broken-up materials are evenly laid and adsorbed on a forming net of the dry method of paper making by the vacuumizing effect of an air suction device below the forming net to form a fiber film; an adhesive is added into the fiber film in a spraying manner, wherein a manner combining spraying through mist spray with vacuum suction on the back face of the spraying is adopted; and finally the reconstituted tobacco substrate with a dimensional lattice structure is obtained by oven-drying. Antistatic ropes are laid between the upper part of the forming net and the forming head boxes or between the forming net and openings of vacuum boxes, and / or antistatic nets are laid between the forming net and the openings of the vacuum boxes. According to the invention, dry method of paper making is firstly used successfully to manufacture the reconstituted tobacco substrate which has better wet strength, a stronger tensile capacity, a high load-carrying capacity, a high filling value and an excellent processing capability.

Description

technical field [0001] The invention relates to a tobacco product and its processing technology, in particular to a reconstituted tobacco leaf substrate prepared by a dry papermaking method. Background technique [0002] Reconstituted tobacco is also called reconstituted tobacco or homogeneous tobacco. It is mainly composed of tobacco powder fragments, tobacco stems or low-grade tobacco leaves, plus plant fibers, adhesives and other additives. Reconstituted tobacco leaves have been widely used as cigarette products as raw materials for tobacco products. Sheets made of low-grade tobacco raw materials have the characteristics of low cost, good filling performance, and can reduce the tar content in smoke. The manufacture began in the 1950s. The manufacturing methods mainly include three methods: papermaking method, thick stock method and roller pressing method. Due to the relatively backward technology of thick stock method and roller pressing method and many reasons in terms...

AI Technical Summary

Problems solved by technology

However, there are also several defects: one is the use of traditional papermaking technology, which produces a large amount of sewage during production, which is a production technology with serious pollution, and the pressure on sewage treatment and discharge is very high; The aroma loss is obvious, and the tobacco powder and tobacco fragments used need to be extracted in water. The water-soluble tobacco components in it are obviously lost during the concentration process, and the insoluble tobacco substances are also very obvious during the subsequent refining process. , the result is that the tobacco flakes produced have insufficient smoke flavor and aroma, prominent non-tobacco taste and miscellaneous gas, which affect the quality of smoking; third, the paper base structure produced by this method is hardened, the surface is smooth, and the load capacity is insufficient. The coating rate of the tobacco sheet (the added tobacco extract and other tobacco substances account for the mass percentage of the finished product) is generally about 40%, and the low content of the added tobacco substance and the high content of the paper base will inevitably lead to smoking quality defects of the tobacco sheet; the fourth is the traditional The structural force of the paper base manufactured by the papermaking method is provided by the hydrogen bonds between fibers. Although the structural strength is good, the wet strength is poor, and the tensile resistance of the paper base is weak, which limits the speed of the subsequent coating process. It is easy to break the paper and interrupt the production, and the tensile defects and wet strength defects not only affect the production capacity but also cause the production process to be unstable

[0007] At present, the base sheet of reconstituted tobacco leaf manufactured by traditional papermaking technology or the base sheet of reconstituted tobacco leaf mentioned in patent 200810030146.5 and patent ZL00808488.2 still has the defect of base sheet wet strength, the subsequent processing technology performance is poor, the filling capacity is insufficient, and the loaded tobacco The low potential of the substance, as well as smoking quality defects, limit the use of tobacco sheet in cigarettes

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