公开(公告)号：WO2007110650A1

公开(公告)日：2007-10-04

申请号：PCT/GB2007/001144

申请日：2007-03-28

Applicant: PHILIP MORRIS PRODUCTS S.A. ,  LI, San ,  OLEGARIO, Raquel ,  BRAUNSHTEYN, Mike ,  DWYER, Roland, W. ,  GARTHAFFNER, Martin ,  WILLIAMS, Dwight ,  JUPE, Richard ,  SNYDER, Tony

Inventor： LI, San ,  OLEGARIO, Raquel ,  BRAUNSHTEYN, Mike ,  DWYER, Roland, W. ,  GARTHAFFNER, Martin ,  WILLIAMS, Dwight ,  JUPE, Richard ,  SNYDER, Tony

IPC: A24D3/04

CPC classification number: A24D3/043 ,  A24D3/045

Abstract: A smoking article filter (114) according to the invention includes a flow restrictor (126) and a cavity (146) downstream of the flow restrictor. The flow restrictor includes an orifice (130) or flow channel for directing smoke into the cavity. The filter is attached to a tobacco rod (112) with tipping paper (116) and includes an air-admissible ventilating zone (140) at a location downstream of the restrictor. The invention also provides smoking articles including filters comprising restrictors and methods of making filters and smoking articles.

Abstract translation: 根据本发明的吸烟制品过滤器（114）包括限流器（126）和在限流器下游的空腔（146）。 限流器包括用于将烟雾引导到空腔中的孔口（130）或流动通道。 过滤器通过接头纸（116）连接到烟草杆（112），并且在节流器下游的位置处包括空气容许的通风区域（140）。 本发明还提供了包括限制器的过滤器和制造过滤器和吸烟制品的方法的吸烟制品。