CPC A24B 3/14 (2013.01) [A24C 5/005 (2013.01); A24D 3/0204 (2013.01)] | 18 Claims |
1. A method for crimping a web of material for the tobacco industry, comprising the following steps:
feeding a web of material for the tobacco industry along a feed path;
crimping the web between two crimping rollers operatively coupled to make a plurality of longitudinal easy folding lines on the web;
measuring with at least one sensor a value of a thickness of the web before the step of crimping;
wherein the step of crimping the web is adjusted during crimping as a function of variations of the measured value of the thickness along the web measured with the at least one sensor; and
wherein the two crimping rollers are mounted on a supporting element and wherein the method comprises varying at least one chosen from a position and an orientation of the supporting element to vary an orientation of the web being fed to the two crimping rollers relative to the two crimping rollers.
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