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Cigarette filter and filter-tipped cigarette

a filter and cigarette technology, applied in the field of filter cigarette filters and cigarette cigarette manufacturing, can solve the problems of increased cigarette manufacturing cost, inability to fully exert charcoal adsorption function, and interior of the cigarette package odor of acetic acid, and achieve the effect of satisfying hardness and ventilation ratio

Inactive Publication Date: 2010-09-30
JAPAN TOBACCO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013]It is an object of the present invention to provide a cigarette filter that can achieve satisfactory hardness and ventilation ratio even when the filter plug wrapper and shaping paper are not furnished with any ventilation hole and even when any hardness increasing agent is not used therein, and to provide a cigarette comprising such a cigarette filter.

Problems solved by technology

Thus, there would occur the problem that the interior of the cigarette package is filled with the odor of acetic acid.
Further, when a charcoal filter is employed, there would occur the problem that triacetin is adsorbed on the charcoal with the result that the function of the charcoal (adsorption of smoke components) cannot be fully exerted.
The ventilation holes would cause such problems that the cigarette manufacturing cost is increased, the versatility to a variety of cigarette products, including a low-tar cigarette or the like, is lowered, and the stability of product quality is poor.

Method used

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  • Cigarette filter and filter-tipped cigarette
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  • Cigarette filter and filter-tipped cigarette

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0052]Filter plugs were produced in accordance with the routine procedure using the papers indicated in Table 1 above as filter plug wrappers. The employed filter material consisted of a conventional cellulose acetate fiber tow having triacetin added thereto in an amount corresponding to 6% by weight based on the weight of the cellulose acetate fiber tow. Each of the filter plugs had a circumference of 24.5 mm and a length of 25 mm. Each of the filter plug wrappers covered the circumference of the filter material in just proportion. The hardness of each of the obtained filters was measured.

[0053]In nature, the hardness of each of the filters should be measured in the condition of the filter fitted to the cigarette. However, due to problems relating to measuring instruments, it is difficult to measure the hardness of each of the filters in the condition of the filter fitted to the cigarette. Therefore, the hardness of each of the filters was measured in the form of a filter plug befo...

example 2

[0057]Filter plugs with the same size as in Example 1 were produced using the conventional filter plug wrapper P and high-rigidity and high-permeability paper S4 indicated in Table 1. The filter material was the same conventional cellulose acetate fiber tow as in Example 1, but the amount of triacetin added to the tow was changed (amounts equivalent to 0 to 12% by weight based on the weight of cellulose acetate fiber). The hardness of each of the obtained filter plugs was measured in the same manner as in Example 1. The results are shown in FIG. 5. In FIG. 5, the line a indicates the results of the use of the filter plug wrapper P, and the line b indicates the results of the use of the high-rigidity and high-permeability paper S4.

[0058]It is apparent from FIG. 5 that when the high-rigidity and high-permeability paper S4 is used, regardless of the amount of triacetin added, the filter hardness is increased over that of the filter plug using the conventional filter plug wrapper P.

[005...

example 3

[0061]So-called paper filter plugs were produced using the papers indicated in Table 1. The filter material used was a creped pulp paper. The configuration of each of the obtained filter plugs was the same as in Example 1. All the filter plugs exhibited an air-flow resistance of 350 mm H2O / 120 mm. The hardness of each of the obtained filter plugs was measured in the same manner as in Example 1. The results are shown in FIG. 6.

[0062]It is apparent from FIG. 6 that the paper filter plugs wrapped with the high-rigidity and high-permeability papers according to the present invention exhibit the same satisfactorily increased hardness values as those of the cellulose acetate filter plugs of Example 1 wrapped with the high-rigidity and high-permeability papers according to the present invention. Further, an increase of filter hardness up to the level equivalent to the filter hardness exhibited by the cellulose acetate filter having triacetin added in an amount of 6% by weight can be achiev...

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Abstract

A single-segment filter having a filter plug uses a high-rigidity and high-permeability paper longitudinal rigidity of which is 30 or higher as measured in accordance with JIS P8143 and air permeability of which is 1000 CORESTA units or greater as a filter plug wrapper wrapping a filter material, and a multisegment filter having a plurality of filter plugs uses the high-rigidity and high-permeability paper as a filter plug wrapper wrapping a filter material and / or a shaping paper joining plurality of filter plugs. A cigarette comprises the particular filter.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This is a Continuation application of PCT Application No. PCT / JP2008 / 072074, filed Dec. 4, 2008, which was published under PCT Article 21(2) in Japanese.[0002]This application is based upon and claims the benefit of priority from prior Japanese Patent Application No. 2007-323802, filed Dec. 14, 2007, the entire contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0003]1. Field of the Invention[0004]The present invention relates to a cigarette filter and a filter-tipped cigarette.[0005]2. Description of the Related Art[0006]Filter-tipped cigarettes are developed and marketed to, for example, milden the smoking taste. The filter-tipped cigarette comprise a cigarette main body formed of a tobacco filler rod, such as one comprising cut tobacco having the circumference thereof wrapped with a cigarette paper, and a filter fitted to one end of the cigarette main body. The filter has at least one filter plug. In the ...

Claims

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Application Information

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IPC IPC(8): A24B15/30A24F1/20
CPCA24D1/02A24D1/04D21H27/16A24D3/163A24D3/14
Inventor TARORA, MASAFUMITORII, ATSUSITSUJIMOTO, TORU
Owner JAPAN TOBACCO INC
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