Porous wraps for smoking articles

Details Porous wraps for smoking articles Porous wraps for smoking articles

A - Human Necessities

24

B

131/80

A24B 5/00 (2006.01) A24C 5/47 (2006.01) B05C 1/00 (2006.01)

Patent

CA 1039606

A B S T R A C T The invention relates to a method and apparatus for treating porous wrapping material for a smoking article, for example a cigarette filter. According to the invention the porous material is provided, by coating with a film-forming substance, with an impervious region or regions positioned to coincide with a region or regions at which adhesive is to be applied, the said substance being dried or set before such adhesive is applied. Thus, a line or lines of the film-forming substance may be applied to the same face of the wrapping material as a line or lines of adhesive for sealing the wrap and/or anchoring filtering material thereto, namely to that face which will be on the inside of the wrap formed from the said material.

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