Tobacco smoke filter

A smoke filter and filter technology, which is applied in tobacco, smoke oil filter elements, and cigar manufacturing, etc., can solve the problems of increasing the complexity and manufacturing cost of carbon groove filters, and unsatisfactory smoke characteristics, etc. Achieve the effect of maintaining smoking experience and maintaining pressure drop

Inactive Publication Date: 2016-04-13
菲尔特隆纳过滤产品开发私人有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The requirement to use at least two segments to incorporate particulate additives into the fluted filter increases the complexity and manufacturing cost of the carbon fluted filter
Additionally, there have been hints for, for example, conventional dual-segment ultra-slim (e.g., 16 mm in circumference) activated carbon-containing fluted filters, since the carbon content in the carbon-containing segments that can be incorporated into such dual-segment filters There is a weight limit beyond which increased filter pressure drop can lead to unsatisfactory smoke characteristics

Method used

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  • Tobacco smoke filter
  • Tobacco smoke filter
  • Tobacco smoke filter

Examples

Experimental program
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Embodiment Construction

[0025] figure 1 Shown is an 'Active Patch' fluted filter 1 comprising an outer wrapper 3 having a basis weight of 100 g / m 2 The wrapping paper is attached around a single longitudinally extending inner core 5 of tobacco smoke filtering material. The first end 3a of the outer wrapper is substantially flush with the first end 5a of the inner core 5 to which it is attached, and the second end 3b of the outer wrapper extends beyond the second end 5b of the inner core 5 to which it is attached , to define a cavity 6 (groove) at the second (mouth) end of the filter. It will be appreciated that it is the radially inner surface of the outer wrapper 3 that extends beyond the second end 5b of the inner core at which the filter second end, together with the second end 5b of the longitudinally extending inner core, delimits a tubular cavity (recessed slot) 6. The single longitudinally extending core 5 of tobacco smoke filtering material is an "active patch" filter element, as is well k...

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Abstract

A tobacco smoke filter or filter element comprising an outer wrapper engaged around a single longitudinal extending core of tobacco smoke filtering material, wherein a first end of the outer wrapper is substantially flush with a first end of the core around which it is engaged, and a second end of the outer wrapper extends beyond a second end of the core around which is engaged, to define a cavity at the second end of the filter; the filter or filter element further comprising an additive distanced from the second end of the outer wrapper and / or core.

Description

[0001] This application is a divisional application of the PCT application whose application number is 201180015524.2 and the invention name is "tobacco smoke filter". technical field [0002] The present invention relates to filters and filter elements for smoking articles such as cigarettes. Background technique [0003] Fluted filters are well known in the tobacco industry for giving cigarettes a distinctive end appearance. They are generally manufactured by wrapping a continuous stream of filter segments in a stiffer plugwrappaper at spaced intervals. Fluted filters are obtained by cutting the filter stream in areas where there are no filter segments (elements) - the hard wrap provides sufficient stiffness to allow the final cigarette to be manufactured and used without crushing the filter Exposed paper ends. [0004] A groove filter may comprise one, two or more filter segments. If it is desired to incorporate activated carbon or other particulate additives within th...

Claims

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Application Information

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IPC IPC(8): A24D3/04A24D3/02
CPCA24D3/0291A24D3/048A24D1/045A24D3/061A24D3/063A24D3/10
Inventor P.F.克拉克J.P.艾姆森
Owner 菲尔特隆纳过滤产品开发私人有限公司
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