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cigarette filter

A filter and cigarette technology, applied in the direction of e-liquid filter, tobacco, application, etc., can solve the problem of dirtying the appearance of the filter, and achieve the effect of avoiding production cost and complexity, high degree of freedom, and reducing pressure drop

Active Publication Date: 2016-03-02
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

However, the disadvantage of these filters is their higher degree of carbon carryover ('CCO') - that is, during the manufacturing process, discrete small particles of carbon may inadvertently transfer to the grooved area of ​​the inner package, where they May stain filter appearance

Method used

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  • cigarette filter
  • cigarette filter
  • cigarette filter

Examples

Experimental program
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Embodiment Construction

[0031] figure 1 , 2 and 3 show examples of "smooth core" CPF filters.

[0032] figure 1Shown is a single segment cigarette filter 1 having a length of 27mm and a circumference of 24.5mm, the cigarette filter 1 comprising a longitudinally extending core 2 of cigarette filter material in the form of a rod-shaped core of cellulose acetate filter material, the longitudinally extending core 2 resting on the core And the central part of the filter has "pods" or pockets 3 of additives in the form of particles 4 of activated carbon completely surrounded (embedded) therein. The core (pod filter element) 2 may eg be formed by the method disclosed in WO2006 / 059134. A first wrapper 5 of air permeable filter paper (or pleated cellulose acetate) is snugly wrapped around the core 2, the first wrapper 5 being in the unpleased circumferential portion of the filter 1 except in the middle portion or in the middle section 6 (i.e. the wrapper segment surrounding the portion of the core 2 conta...

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Abstract

A cigarette filter or filter element comprising: a longitudinally extending core of cigarette filter material including an additive spaced longitudinally from a first end of the core; a first wrapper surrounding the core; a second wrapper of a wrapper; the first wrapper at least with the second wrapper (for example between the first wrapper and the second wrapper) defines a rim extending longitudinally of the filter from at least one end of the filter At least one channel (eg, 5 to 23 channels).

Description

technical field [0001] The present invention relates to filters and filter elements for tobacco products such as cigarettes. Background technique [0002] Cigarette filters containing particulate additives, especially activated carbon, are well known in the tobacco industry. Most such filters comprise longitudinally adjoining sections wherein the mouth end section does not contain any particulate additions and thus presents an acceptable end appearance, while one or more of the upstream sections include or contain particulate additions. It is well known that the production of such multi-segment filters is much more expensive than a "single-segment" filter because it requires separate processes to manufacture the individual segments and then correctly arrange and splice the different segments to form a multi-segment filter strip. Forming one (unique) piece of filter material rather than from two or more pieces of filter material] is more complex and more costly; a single pie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24D3/04
CPCA24D3/043A24D3/048A24D3/063A24D3/10A24D3/12A24D3/163
Inventor 保罗·F·克拉克帕特里克·G·梅雷迪思
Owner 菲尔特隆纳过滤产品开发私人有限公司