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CORESTA Congress, Shanghai, 2008, SSPT 25

Production of LIP cigarettes using the rod method

MÜLLER H.H.; MÖLLER H.; KARGER E.
Hauni Maschinenbau AG, Hamburg, Germany.

As a result of legal regulations, the percentage of cigarettes with self-extinguishing properties is increasing worldwide. Special materials are used, in particular modified papers for the cigarette's tobacco rod, so that the LIP cigarette (Low Ignition Propensity) goes out automatically in a few minutes if not puffed on. This is primarily designed to reduce the penetration of oxygen through the cigarette paper and so stop the cigarette's tobacco rod from burning independently. However, the changes made to the cigarette paper also have a big impact on the production process of the cigarette itself. The effects of different cigarette papers on the production process on a cigarette maker are tested and described on a classification basis. The following will be addressed: the generation of dust in the rod formation unit, glue application when the cigarette seam is closed, as well as joining the cigarette paper using splice patches or embossing during bobbin changeover. The quality of the printmark, cut quality, seam seal and the attachment of the filter to the tobacco rod will be tested on the finished cigarette. Based on the test results, the links between the material properties of the paper and its processing properties as well as the effects on the cigarette quality will be discussed. The aim of these tests is to identify how to produce a high-quality cigarette on the one hand, and to achieve stable and reliable production on the other. In particular, a production speed comparable to that known to date using standard papers should be obtained.