JPH03290177A - Filter for tobacco smoke - Google Patents

Abstract

PURPOSE:To obtain the title filter capable of selectively adsorbing and removing nicotine in smoke of tobacco by adding glucose to a filter. CONSTITUTION:The aimed filter obtained by adding glucose to a filter, preferably at an amount of 10-100wt.% based on one filter.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a tobacco smoke filter,
More specifically, the present invention relates to a tobacco smoke filter characterized by containing glucose as a selective remover of nicotine components in tobacco smoke.

[Prior Art] Recent trends in cigarette consumption indicate that products with a light taste, low amounts of nicotine and tar, and a mild feel are preferred. In order to meet such consumer demands, various improvements have been made to cellulose acetate filters and paper filters that are currently widely used. A simple example is one that attempts to increase the filtration rate of nicotine◆cool by making the length of the filter longer than conventional products. Furthermore, in the case of cellulose acetate filters, measures have been taken to increase the filtration rate of nicotine tar by making the fibers finer in denier and by developing threads with various irregular cross-sections.

[Problems to be solved by the invention] As the debate on smoking and health issues increases, it is expected that the aforementioned trend toward milder smoking will continue, but uniformly filtering nicotine tar as in the past would result in poor smoke quality. There is a problem that the smoke volume cannot be satisfied. In order to achieve a satisfactory smoking taste and smoke volume, it is necessary to control the ratio of the amount of nicotine to the amount of tar in the smoke (hereinafter referred to as N/T) to a desired value. N/T in smoke can be adjusted by changing the composition of tobacco leaves or using tobacco substitutes. However, these methods have problems.

That is, there are restrictions on the cost of new leaves, the availability of leaves, etc. Furthermore, to date, there are no tobacco substitutes that are acceptable in terms of taste and are not yet at the stage of practical use.

In order to overcome these problems, research is being carried out on filter additives that change the nitrogen content in smoke, that is, filter additives that selectively adsorb and remove nicotine or tar in smoke. There is still nothing that has been put into practical use.

[Means for Solving the Problems] In view of the above circumstances, the present inventors have conducted intensive studies and research to find a substance that selectively adsorbs nicotine or tar in smoke, and as a result, they have found that glucose They discovered that the ability to selectively adsorb nicotine in cigarette smoke was extremely high, and completed a cigarette smoke filter that had the ability to selectively adsorb nicotine with added glucose.

That is, the present invention provides a tobacco smoke filter characterized by containing glucose.

The glucose used in the present invention may be one that satisfies either the Japanese Pharmacopoeia or the standards for cosmetic raw materials.

Since cigarettes are a luxury item, it is essential that additives for filters be substances that do not impair the original aroma and taste of cigarettes, but as long as they meet any of the standards listed above, Since glucose is odorless, even if it is included in a cigarette smoke filter, it will not have any adverse effect on the aroma and taste of cigarettes.

Glucose may be added to a tobacco smoke filter in powder form, or by impregnating or spraying an aqueous glucose solution into filter tow or filter paper.

It is generally preferable to manufacture the filter structure in the form of a dual structure or a triple structure in order to prevent glucose from flowing into the oral cavity during cigarette smoking. When used in a dual structure, one part of the filter is sprinkled with glucose powder or added with an aqueous glucose solution by impregnation or spraying, and the other part is connected to a part that does not contain glucose.

When using a triple structure, one part of the filter is structured so that glucose powder is directly inserted between the filters, or the filter is sprinkled with glucose powder, or a glucose aqueous solution is added by spraying and sandwiched between parts that do not contain glucose. and use it.

Filter materials for adding glucose include cellulose acetate filters, rayon filters,
There are polypropylene filters, paper filters, etc., and it is effective no matter which material is used.

The amount of glucose added varies depending on the tobacco leaf composition and filter material, but per tobacco smoke filter,
10 to 100% by weight (ratio of glucose weight to weight of filter material) is preferred. If the amount of glucose added is less than 10% by weight, the nicotine removal effect will be too small, while if it exceeds 100% by weight, the feeling of smoke volume during smoking will be significantly reduced, which is not preferable.

[Examples] Hereinafter, the present invention will be explained in detail with reference to Examples, but the present invention is not limited to these Examples at all.

In addition, the ventilation resistance measurement, smoking test, cochin, and tar filtration rate measurement described in the following Examples and Comparative Examples were performed as follows.

A: Ventilation resistance is the pressure loss expressed in water column when the flow rate of air passing through the filter plug or filter chip to be measured is 17.5 ml/sec.

B: The smoking test was conducted using a constant flow type automatic smoking machine with a flow rate of 17.5
ml/second, smoking time 2 seconds, smoking cycle 60 seconds, and smoking length 50 mm. The mainstream smoke was collected with a Cambridge filter, and the filtration rates of nicotine and tar were measured.

The nicotine and tar filtration rate is determined by the amount of nicotine and tar attached to the filter body (TN and TT, respectively) and the amount of nicotine and tar attached to the Cambridge filter for collecting smoke components of the smoker (CN and C, respectively) after smoking. □) was measured, and the filtration rate of each filter body was determined using the formula below.

The filter chip was made of crimped cellulose diacetate tow with a single fiber fineness of 3.3 denier, a Y-shaped cross section, and a total fineness of 46,000 denier, to which 6% by weight of triacetin was attached, a circumference of 24.4 mm, a length of 84 mm, A cigarette frame section is made by cutting a part of the filter from a commercially available cigarette "Peace Light" (manufactured by Japan Tobacco Inc.) by winding up a cigarette filter rod with ventilation resistance of 300 mm and cutting it into 17 mm filter chips. This was used as the Comparative Example 1 sample.

The same filter chip used for the comparison sample above was cut into lengths between 12mm and 5mm, and a 15% by weight aqueous glucose solution was added to the 12mm filter chip so that the amount of glucose added to the filter chip was within the tip. It was added using a syringe to give a concentration of 15% by weight, and then dried under vacuum at room temperature (20 to 25°C), and then connected to five filter chips for testing. Next, this filter chip was connected to the cigarette frame of "Peace Light" in the same manner as in Comparative Example 1 to obtain an Example 1 sample.

These samples were smoked using an automatic smoking machine and the filtration rates of nicotine, tar, and water were measured. Table 1 summarizes the results.

Table 1 Table 2 Filter chips were created in exactly the same manner as in Example 1, only changing the amount of the aqueous glucose solution so that the amount of glucose added to the filter chip was 35 and 45% by weight based on the tow weight in the chip. The samples of Examples 2 and 3 were then connected to the cigarette frame.

After smoking with an automatic smoking machine in the same manner as in Example 1, the filtration rates of nicotine, tar, and water were measured. The results are summarized in Table 2.

The same 84 mm long filter rod used in Example 1 was cut into 5 filter tips. Part 2
Arrange the pieces with a gap of 5 mm, and add 0.11 g of granulated glucose (100% by weight based on the weight of the filter material) with a particle size of 24 to 42 mesh separated using a JIS certified standard sieve. The triple filter was placed in the container, and the triple filter was connected to the cigarette frame of a "Peace Light" in the same manner as in Example 1. As a comparative example, the 84-meter long filter rod used in Examples 1 to 4 was cut into 17-open filter chips, and a cigarette frame was attached to the same filter tip as the triple filter of Example 4. A sample made by connecting was used. These samples were subjected to a smoking test in the same manner as in Example 1, and the filtration rates of nicotine, tar, and water were measured. The results are shown in Table 3.

According to Tarr, nicotine in cigarette smoke can be selectively adsorbed and removed.

Claims (1)

[Claims] 1. A filter for tobacco smoke, characterized in that it contains glucose. 2. The amount of glucose added is 10 to 1 per filter.
2. The tobacco smoke filter according to claim 1, wherein the tobacco smoke filter is 0.00% by weight.