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Apparatus and method for the production of filters for cigarettes or other smoking articles

A filter and equipment technology, applied in the direction of e-liquid filter elements, applications, tobacco, etc., can solve the problems of diameter reduction and cost increase

Inactive Publication Date: 2017-08-18
MONTRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of so-called "formed" type NWA filters (i.e. filters with a tubular shape with an inner cavity having a profile or filters with an external profile), the hardening and diameter The reduction causes problems and involves an increase in costs, since the ripening lasts several days

Method used

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  • Apparatus and method for the production of filters for cigarettes or other smoking articles
  • Apparatus and method for the production of filters for cigarettes or other smoking articles
  • Apparatus and method for the production of filters for cigarettes or other smoking articles

Examples

Experimental program
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Embodiment Construction

[0020] in the attached picture figure 1 , 2 Shows a production line for the production of filters for cigarettes or other smoking articles, comprising a first station 10 consisting of machines of known type containing fibers for the production of cellulose acetate with added plasticizers A filter making device that constitutes a filter. As already indicated, a machine of this type is described and shown, for example, in document EP 2 636 321 A1 of the same applicant. The machine shown in the drawings is that which has been placed on the market by the applicant under the name "MONO". However, also as already indicated, the invention is generally applicable to any type of machine for producing filters and to any type of filter.

[0021] In a special case of the above-mentioned known machine shown here, the machine comprises filter making means comprising: fiber bundles (which are selected from a large bundle of fibers) for processing and subsequent formation of cellulose acet...

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Abstract

An apparatus for the production of filters for cigarettes or other smoking articles, comprises filter making means (10) and conveyor means (40; 41, 42) for feeding the produced filters (F) to a drying chamber (30) adapted to cause accelerated aging of the filters (F). To the drying chamber (30) there is associated a radiofrequency generator device (50), for generating a high frequency oscillating electric field in which said filters are immersed. The apparatus further comprises means for varying the speed at which said filters goes through said drying chamber, on the basis of at least one detected parameter, which is indicative of the humidity contained within said filters, so that, for a given power of said radiofrequency generator device (50), the residence time of the filters within said drying chamber is adjusted so as to ensure a substantial elimination of the humidity content from the filters.

Description

technical field [0001] The present invention relates to methods and apparatus for producing filters for cigarettes or other smoking articles. Background technique [0002] Capable of producing filters made of cellulose acetate fibers bound together with the addition of a plasticizer, typically triacetin (glycerol triacetate), for the production of filters for cigarettes or other smoking articles The machine of the machine is old and well known. A machine of this type is disclosed, for example, in document EP 2 636 321 A1 of the same applicant. The addition of plasticizers is used for wrapped acetate filters (ie, filters wrapped in a web of paper or other material) and for non-wrapped acetate filters (NWA) (ie, without wrapped filter) both. [0003] In the production of filters of the type indicated above, the action of the plasticizer is accomplished over a given curing time, after which the filter passes from a relatively soft consistency to a relatively hardened state, ...

Claims

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Application Information

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IPC IPC(8): A24D3/02
CPCA24D3/025A24D3/0295A24D3/02
Inventor A.吉安尼尼A.蒙佐尼
Owner MONTRADE
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