Multi-segment filter tube
AssigneePhilip Morris Products S.A.
InventorsLuca Risso, Alberto Bonici
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Abstract
The present invention relates to a filter tube, the filter tube comprising an empty paper tube and a filter attached to the empty paper tube, wherein the filter comprises a first filter segment, a second filter segment and a third filter segment, wherein the first filter segment is located at the mouth end of the filter tube, the second filter segment is located upstream of the second filter segment and the third filter segment is located upstream of the second filter segment. The invention further concerns a method of making such a filter tube. The filter tube is suitable for make-your-own cigarettes.
Claims20
A filter tube comprising an empty paper tube and a filter attached to the empty paper tube, wherein the filter comprises a first filter segment, a second filter segment and a third filter segment, wherein the first filter segment is located at the mouth end of the filter tube, the second filter segment is located upstream of the first filter segment and the third filter segment is located upstream of the second filter segment.
A method of making a filter tube comprising the steps of
- providing a first filter segment;
- providing a second filter segment;
- forming a multi-segment filter with three, four or five segments, wherein the forming step comprises combining the first filter segment and the second filter segment;
- wrapping the filter with cigarette paper, thereby creating an empty paper tube.
Dependencies are inferred from the claim text.