Method for gumming reconstituted tobacco sheets

Abstract

The method consists of the following stages: a) Immersion in water b) Pressing between rollers, controlling their attractive stress so as to obtain a moisture content 20% or more c) Depositing of adhesive in a quantity of 60 mg/m or less d) Drying In this way, the water contained in the sheets of reconstituted tobacco limits the amount of water that it may absorb during gumming, so that the linear weight of adhesive required for a satisfactory performance of the end product is reduced.

1 . Method for gumming reconstituted tobacco sheets characterised in that it comprises the following stages: 
 a) Immersion in water    b) Pressing between rollers, controlling their attractive stress so as to obtain a moisture content 20% or more    c) Depositing of adhesive in a quantity of 60 mg/m or less    d) Drying    
   
   
       2 . Method for gumming reconstituted tobacco sheets in accordance with  claim 1 , characterised in that after the pressing between rollers, the moisture content lies between 20-25%, the quantity of adhesive deposited being 45-60 mg/m.  
   
   
       3 . Method for gumming reconstituted tobacco sheets in accordance with  claim 1 , characterised in that the drying is done in a mixed radiation-convection oven 2-3 m in length, at a temperature of 45-55° C. and a humidity of 10-15%, with a process speed of 8-10 m/min.