JP3144438U - Tobacco filter using porous carbon fiber - Google Patents

Abstract

The present invention provides a tobacco filter that filters tobacco smoke and removes harmful components.
SOLUTION: Porous carbon fibers having an adsorption capacity higher than that of activated carbon are incorporated into an existing tobacco filter, and through this filter, harmful components contained in tobacco smoke can be removed without changing the taste of tobacco. It becomes a filter structure.
[Selection] Figure 1

Description

The present invention relates to a tobacco filter that filters tobacco smoke and removes harmful components.

In recent years, regulations on the sale of tobacco have progressed because harmful components such as nicotine and tar contained in tobacco have the potential to impair health. For this reason, various studies have been made such as improving the filter and using an adsorbent. A method of removing with orthodox activated carbon, a method of removing with coffee bean paste (for example, Japanese Patent Laid-Open No. 17-80641), and a method of sealing with nitrogen gas (for example, Japanese Patent Laid-Open No. 20-48715) have been proposed.

However, new technologies such as coffee bean cake and nitrogen gas are not widely used compared to existing activated carbon due to handling problems.

The present invention incorporates porous carbon fiber having higher adsorption ability than activated carbon into an existing tobacco filter, and through this filter, harmful components contained in tobacco smoke can be removed without changing the taste of tobacco. The purpose is to provide a filter.

The invention described in claim 1 is a tobacco filter using porous carbon fibers.

According to the first aspect of the invention, by using this tobacco filter, harmful components contained in tobacco smoke can be removed without changing the taste of tobacco.

The invention described in claim 2 is one in which porous carbon fiber is sandwiched between the cross sections of the filter.

According to the second aspect of the present invention, by making the structure in which the porous carbon fiber is sandwiched between the cross sections of the filter, harmful components contained in tobacco smoke and the like can be removed without changing the taste of tobacco.

According to the third aspect of the present invention, the porous carbon fiber is miniaturized and placed inside the filter.

In the invention according to claim 3, harmful carbon contained in tobacco smoke can be removed without changing the taste of tobacco by micronizing the porous carbon fiber and placing it inside the filter.

In the device according to claim 4, 1 to 3 mg of porous carbon fiber is added.

In the invention according to claim 4, by adding 1 to 3 mg of porous carbon fiber, harmful components contained in tobacco smoke and the like can be removed without changing the taste of tobacco.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. 1 and 2 are views of a cigarette 1 in which porous carbon fibers are placed in a filter cross section.

This filter is obtained by sandwiching porous carbon fibers 3 in the cross section of a filter 2 used in a normal cigarette 1. FIG. 1 is a cross-sectional view, and FIG. 2 is a vertical cross-section view. These cross sections may be those in which the entire surface is covered with porous carbon fibers, or the porous carbon fibers may be open or spaced apart. The form of the porous carbon fiber may be fibrous or may be processed into a nonwoven fabric.

FIG. 3 shows a porous carbon fiber that has been made fine and mixed in a filter. The dispersion may be uniform as shown in the figure, or the dispersion may be biased.

The amount of the porous carbon fiber 3 is preferably 1 to 3 mg, but is not limited to this because there is a difference in the amount of nicotine tar generated from tobacco.

Using a commercial tobacco hope, 1, 2, 3, 5 mg of porous carbon fiber was sandwiched between the cross sections of the filters, and the smoke was sucked by a regular smoker to evaluate the taste. The results are shown in FIG.

The taste of tobacco did not change the taste when the amount of porous carbon fiber was small, but it felt lighter as the amount increased. And when it increased more, bitter taste was felt and taste was worse. Therefore, in the case of the sampled tobacco hope, the range that can be used without changing the taste was 1 to 3 mg per cigarette.

Cigarettes with porous carbon fibers in the filter cross section 1 Cigarette with porous carbon fiber in the filter vertical section 1 Cigarette 1 with porous carbon fiber miniaturized and placed in a filter Tobacco taste test

Explanation of symbols

1 Cigarette 2 Filter 3 Porous Carbon Fiber 4 Miniaturized Porous Carbon Fiber

Claims (4)

Tobacco filter using porous carbon fiber. The tobacco filter according to claim 1, wherein porous carbon fibers are sandwiched between the filters. The tobacco filter according to claim 1, wherein the porous carbon fiber is miniaturized. The tobacco filter according to claims 1 to 3, wherein 1 to 3 mg of porous carbon fiber is added.

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