Apparatus for heating the adhesive-containing seams of wrappers of rods of the tobacco processing industry
AssigneeHauni Maschinenbau AG
InventorsKlaus-Jurgen Pohl, Alfred Drenguis
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Abstract
A sealer for the adhesive-containing seam of a tubular wrapper surrounding a running filler of tobacco or filter material for tobacco smoke has an at least partially ceramic heating device which contacts the moving seam and contains an electric conductor of ceramic material. The temperature of the heating device can be regulated to decrease, either stepwise or gradually, in the direction of movement of the seam. The heating device can consist of or contain silicon nitride and can be doped with titanium nitride to enhance its heat conductivity.
Claims14
Apparatus for conditioning an elongated adhesive-containing seam of a tubular wrapper for a filler containing a material of the tobacco processing industry and being advanced in a predetermined direction along a predetermined path, said seam having an exposed side and a concealed side confronting the filler, comprising a heating device positionable at the exposed side of the seam in said path and having a surface arranged to contact only the exposed side of the seam, at least a portion of said device consisting of a ceramic material and including at least a portion of said surface.
The apparatus of claim 13, wherein said dope includes titanium nitride.
Dependencies are inferred from the claim text.