Forming method and forming equipment for ternary composite reconstituted tobacco sheets

Abstract

The invention relates to a forming method and forming equipment for ternary composite reconstituted tobacco sheets. The equipment comprises a primary coating composite device, a primary stripping conveying device, a secondary coating composite device and a secondary stripping conveying device. The method comprises the following steps of: coating a tobacco mixture on a first conveying surface in acoating and compounding manner to form a strip-shaped slurry sheet, and coating a fiber net-shaped base material on the surface of the strip-shaped slurry sheet under the condition of smaller tensionto form a strip-shaped binary compound reconstituted tobacco sheet, coating the secondary conveying surface with the tobacco mixture, and coating the surface of the strip-shaped slurry sheet with thestrip-shaped binary composite reconstituted tobacco sheet under the condition of small tension to form the ternary composite reconstituted tobacco sheet. The middle layer of the produced reconstitutedtobacco sheet is a prefabricated strip-shaped fiber net base material, the upper layer and the lower layer are tobacco powder mixtures, the coating rate can be increased, the cigarette smell can be improved, the consistency of finished products can be improved, the tensile strength can be improved, the thickness can be reduced, and the processability can be enhanced.

Description

technical field [0001] The present invention relates to a molding method and molding equipment for composite reconstituted tobacco sheet processing, especially a molding method for processing a ternary composite reconstituted tobacco sheet with no strict boundaries between layers, mutual inclusion and mutual penetration and molding equipment. Background technique [0002] In tobacco production enterprises, the existing production methods of reconstituted tobacco sheet mainly include papermaking method, rolling method and thick pulp method. At the same time, some enterprises have also carried out technical research on the production of reconstituted tobacco sheets by spray coating, the production of reconstituted tobacco sheets by roller coating, and the production of reconstituted tobacco sheets by doctor blade coating. [0003] The papermaking method is to separate tobacco raw materials into tobacco solid fibers and water-soluble separating liquid through defibration, soak...

AI Technical Summary

Problems solved by technology

When the smoke slurry is in contact with the prefabricated base material, the prefabricated base material will be squeezed by the scraper and the smoke slurry material. Because the prefabricated base material absorbs water, the strength will drop rapidly, and the original characteristics of the base material cannot be effectively maintained. Under the action of the substrate, there are problems such as substrate fracture and damage

In order to ensure the strength and shape of the sheet, the prefabricated substrate needs to have high tensile strength and wet strength, which will lead to thick prefabricated substrate, complex prefabrication process of substrate, high cost, low coating amount, and low coating Inhomogeneity often affects the taste of reconstituted tobacco sheets, affects the quality of reconstituted tobacco sheets and the application range of back-end processes

[0009] The production methods of the above-mentioned reconstituted tobacco sheets have been popularized and applied to varying degrees. However, in the actual application process, there are usually various degrees of insufficient smoke flavor, poor consistency of finished products, low tensile strength, poor processing resistance, low production capacity, Many deficiencies such as large equipment investment, low production efficiency, and high cost of three wastes treatment

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