发明名称 CIGARETTE FILTER
摘要 A process of producing a cigarette filter comprises the steps of assembly a filter segment comprising a hollow tube with a filter plug 14 at one end thereof and a space 16 adjacent the plug. The filter segment is horizontally positioned, and the space is partially filled with a predetermined amount of particulate filter material 46 by applying vacuum 48 to the end filter plug to thereby drawn the particulate material into the space. An elongate filter plug is horizontally positioned in alignment with and adjacent to the filled filter segment, and the filled filter segment and the elongate filter plug are moved together until that plug abuts the particulate filter material to thereby seal the space and the particulate material therein. The formed filter is ultimately joined to a wrapped tobacco rod.
申请公布号 WO2009037568(A2) 申请公布日期 2009.03.26
申请号 WO2008IB03082 申请日期 2008.09.17
申请人 PHILIP MORRIS PRODUCTS S.A. 发明人
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