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Process for the production of filters for cigarettes, process for the production of filters for cigarettes together for the achievement of the process.The filter prodconjunto for achievement of the process filter produced according to this process, and employment of the filter thus produced
Process for the production of filters for cigarettes, process for the production of filters for cigarettes together for the achievement of the process.The filter prodconjunto for achievement of the process filter produced according to this process, and employment of the filter thus produced
Cigarette filter units are made in a long strip with alternate portions of fibrous and pourable filter material. The fibrous portions are first attached at spaced intervals to a sheathing strip which is wrapped practically right around them to form a cylinder with regular empty spaces between the fibrous portions and openings into the spaces. In a special unit, air is extracted from these spaces so that when the spaces enter a chamber containing pourable filter material, they suck the material in to fully fill the spaces. Excess filter material is brushed off the filter unit, and a sealing strip is stuck over the openings.
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