METHOD AND APPARATUS FOR PRODUCING A COMPOSITE TOBACCO FILLER

摘要

A composite tobacco filler is formed in three stages by showering or otherwise depositing particles of a first tobacco type at one side of a first airpermeable suction conveyor to form a narrow core one surface of which contacts the first conveyor; by thereupon depositing on the first conveyor a first layer which consists of another type of tobacco, which overlies the core, and whose marginal portions extend laterally beyond the core; by thereupon transferring the core and the first layer onto a second air-permeable suction conveyor so that the one surface of the core becomes exposed and the first layer directly contacts one side of the second conveyor; and by thereafter showering a second tobacco layer of the other type onto the exposed surface of the core and onto the marginal portions of the first layer to thus complete the formation of a filler wherein the core is completely surrounded by the material of the two layers. The core can be trimmed prior to formation of the first layer, the first layer can be trimmed prior to transfer onto the second conveyor, and the second layer can be trimmed on the second conveyor.