MD278G2 - Method of tobacco manufacture - Google Patents

Abstract

The invention is related to the tobacco treatment after the harvest and might be used in the farms producers of tobacco for obtaining of tobacco raw-products, useful for the manufacture at the factory.The purpose achieved by this invention consists in the creation of an economical method that concerns energy consumption for tobacco leaves manufacture, which might give the possibility to obtain high quality raw-products, reducing the length of process.The method concordant to invention solves this purpose through the fact that it includes prefermentation, colour fixation, the drying of leaf's plate, the definitive drying of the principal nerve and petiole, the fermentation, the moistening and the assortment. The novelty of the method consists in the fact that the devinitive drying of the petiole is done at the temperature of drying agent at 85-90°C and of his complete recirculation with the intensity of fanning at 0,6-1,0 m3/kg of tobacco recently harvested per hour, the moistening and the fermentation are done simultaneously at the continous reduction of drying agent's temperature with the speed of 1,5-2,0°C per hour, delivering in the drying room a mixture of steams and water with the temperature of 15-25°C. At the reduction of drying agent's temperature until 40-45°C, the delivery of the mixture from steam and water being interrupted, the degree of recirculation is reduced until 50% and below and the manufacture continues at the natural reduction of temperature until the touching by tobacco leaves of final relative damp of 17-19%.