公开(公告)号：EP3820309A1

公开(公告)日：2021-05-19

申请号：EP19744801.2

申请日：2019-07-10

申请人： British American Tobacco (Investments) Limited

发明人： FRANKE, Dietmar ,  PLUECKHAHN, Frank ,  LINK, Matthias ,  GRZONKA, Horst ,  LINDNER, Thomas

IPC分类号： A24B3/04 ,  A24B3/12

公开(公告)号：EP1528867B1

公开(公告)日：2006-12-27

申请号：EP03784260.6

申请日：2003-08-07

申请人： British American Tobacco (Investments) Limited

发明人： GRZONKA, Horst

IPC分类号： A24D3/04

CPC分类号： A24D3/04

摘要： The invention relates to a filter-tip cigarette with a tobacco rod (1) wrapped in a cigarette paper and a filter (6) wrapped along its length in tipping paper (4) or other wrapper being other than plugwrap, and a strip of material (5) fully covering the tipping paper of the filter and the cigarette paper of the wrapped tobacco rod in the region of the abutment between tobacco rod and filter bonds together the filter and tobacco rod. In addition, the invention relates to a process for the manufacture of such a filter, which may also be employed for the manufacture of 'double unit cigarettes'.

公开(公告)号：EP1458253A1

公开(公告)日：2004-09-22

申请号：EP02785645.9

申请日：2002-12-11

申请人： British American Tobacco (Investments) Limited

发明人： SCHLÜTER, Adolf ,  GRZONKA, Horst

IPC分类号： A24D3/04

CPC分类号： A24D3/043

摘要： The invention concerns a smoking article filter plug (16) for a cigarette, the filter plug being cylindrical and having a plug wrap (18), grooves (20) being impressed into the plug wrap, and a tipping paper (22) for the attachment of the filter plug to the tobacco rod (12). Some grooves are axially extending with respect to the axis of the filter plug and are open on the side of the tobacco rod and extend continuously only over a part of the length of the filter plug. All grooves are covered by a ventilated tipping paper, which allows ventilating air into the axially extending grooves only. In addition the invention concerns the use of such a filter for the reduction of the CO/tar ratio as a function of the filter ventilation.

公开(公告)号：EP1528867A1

公开(公告)日：2005-05-11

申请号：EP03784260.6

申请日：2003-08-07

申请人： British American Tobacco (Investments) Limited

发明人： GRZONKA, Horst

IPC分类号： A24D3/04

CPC分类号： A24D3/04

摘要： The invention relates to a filter-tip cigarette with a tobacco rod (1) wrapped in a cigarette paper and a filter (6) wrapped along its length in tipping paper (4) or other wrapper being other than plugwrap, and a strip of material (5) fully covering the tipping paper of the filter and the cigarette paper of the wrapped tobacco rod in the region of the abutment between tobacco rod and filter bonds together the filter and tobacco rod. In addition, the invention relates to a process for the manufacture of such a filter, which may also be employed for the manufacture of 'double unit cigarettes'.