TOBACCO SMOKE FILTER

A tobacco smoke filter or filter element, a filter cigarette, or a multi-sectional bar, comprising a stiff outer wrapper engaged around a downstream thermoformed core of tobacco smoke filtering material and a further core longitudinally aligned therewith; the downstream thermoformed core having a profiled outer surface which defines with the stiff outer wrapper at least one longitudinally extending channel which extends the length of the downstream core. The invention improving a poor smoking taste due to the effect of air and smoke when a filter is lack in mixing of air and smoke. 本发明涉及烟草烟雾过滤器或过滤器元件、过滤器香烟、或多节棒，包含围绕烟草烟雾过滤材料的下游热成型芯接合的硬质外包装物和与其纵向对齐的另外的芯；下游热成型芯具有异形的外表面，其与硬质外包装物一起限定了至少一个纵向延伸的通道，所述通道沿下游芯的长度延伸。本发明允许改善在过滤器中缺少空气和烟雾的混合而引起的所谓"空气和烟雾"效应导致的较差的口感。