Preparation method of heat-not-burn dry reconstituted tobacco

Abstract

The invention discloses a preparation method of heat-not-burn dry reconstituted tobacco. The preparation method comprises the steps of substrate preparation, coating and drying, and further comprisesthe step of drying and calendering treatment. By adjusting the proper calendering pressure and calendering temperature, the physical properties of the heat-not-burn dry reconstituted tobacco are improved, and the processing requirements of the forming process are met; the deformation coefficient of a formed material rod is small, a smoke producing agent is formed by adding coating liquid to be combined with added glycerol, and the drying temperature is adjusted so that it can be guaranteed that the content of glycerol in a product can reach the standard, and processing adaptability indexes such as tensile strength of the heat-not-burn dry reconstituted tobacco can also be met. The smoke producing agent content of the prepared dry reconstituted tobacco can reach 19.53%, the tensile strengthof reconstituted tobacco before calendering is 0.315 KN/m, the tensile elongation of reconstituted tobacco before calendering is 6.05%, the tensile strength of the dry reconstituted tobacco after calendering reaches 0.5337 KN/m, and the tensile elongation of the dry reconstituted tobacco after calendering is 11.13%.

Description

technical field [0001] The invention relates to the technical field of tobacco production, in particular to a method for preparing heat-not-burn reconstituted tobacco leaves. Background technique [0002] The basic process of dry reconstituted tobacco leaves is to mechanically crush coniferous wood pulp, unbleached hemp pulp and other external fiber pulp sheets to a certain size, and then transport them to the molding equipment through air, where the fibers are dispersed in the molding equipment and then suspended in the air In the process, under the combined action of air supply and negative pressure, the directional sedimentation will form a thin layer of fibers on the moving forming net, and then the dry-process reconstituted tobacco leaf substrate will be formed after the adhesive is sprayed on the front side, and then the tobacco powder and adhesive after mechanical crushing , coating materials, smoking agents, etc. are blended into a coating liquid and sprayed on the s...

AI Technical Summary

Problems solved by technology

In the current production method of dry reconstituted tobacco leaves, the smoking agent is usually added to the coating solution, and part of the glycerol is lost during the preparation process, resulting in a low content of smoking agent in the final product, which cannot meet the sensory quality requirements

Adding too much fuming agent to the coating liquid will damage the tensile strength and tensile elongation of the paper web, which will affect the processing adaptability of the product.

In addition, due to the better filling value and lower tensile strength of dry-process reconstituted tobacco leaf products, when the dry-process reconstituted tobacco leaves without pretreatment are directly used in the molding process, some samples have paper breaks

The current dry reconstituted tobacco leaves cannot solve the above problems well

The prior art CN108451001A discloses a dry-process reconstituted tobacco leaf used for heat-not-burn cigarettes and its preparation method. Although low-temperature drying and calendering processes are also disclosed in this technology, the mechanical processing performance of shaped tobacco leaves is limited.

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