Filter for cigarette and cigarette having same
A technology for filter tips and cigarettes, which is applied in the fields of e-liquid filter elements, tobacco, and cigar manufacturing, and can solve problems such as the inability to eliminate nitrogen oxides
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0019]
[0020] 10 mg, 30 mg, 50 mg and 100 mg of PTIO (available from Wako Pure Chemical Industries, Ltd.; CAS: 18390-00-6) were completely dissolved in 2490 mg, 2470 mg, 2450 mg and 2400 mg of ethanol, respectively In , the ethanol solutions of PTIO thus prepared had concentrations of 0.4 wt%, 1.2 wt%, 2 wt% and 4 wt%, respectively. For each of the ethanol solutions, add 1 gram of coconut shell activated carbon (available from Japan Envirochemicals Ltd., which is preliminarily vacuum-heated and dried at 200° C., specific surface area: approximately 1200 m 2 / g), and stirred for 60 minutes using a test tube mixer. Thereafter, the ethanol solvent was removed in a 50°C water bath while blowing nitrogen gas into the solution, and then the resulting material was dried under vacuum heating at 120°C. Thus, activated carbon impregnated with PTIO was obtained. It was measured that the PTIO-impregnated activated carbon obtained by impregnation with an ethanol solution having a con...
Embodiment 2
[0032] Hygroscopic treatment was performed on the PTIO-impregnated activated carbon II prepared in Example 1 until it reached equilibrium at a temperature of 22° C. and a relative humidity of 60%, thus obtaining hygroscopic PTIO-impregnated activated carbon III. Cigarettes were manufactured as in Example 1 except that the hygroscopic PTIO-impregnated activated carbon III was used, and the reduction rate of NO in the mainstream smoke was calculated. The results are shown in FIG. 2 . In Fig. 2, line a represents the results obtained in the case of using activated carbon III impregnated with PTIO that was hygroscopic, and line b represents the results obtained in the case of using activated carbon obtained by the same moisture absorption treatment except that PTIO was not impregnated . As can be seen from the results shown in Figure 2, when the moisture absorption treatment was carried out, the reduction rate of NO was slightly lower than in the case of dry impregnated PTIO acti...
Embodiment 3
[0034]The cigarette samples manufactured in Example 1 were burned under the same conditions as in Example 1 except that the puff volume was changed to 35 mL / puff. A cigarette sample using activated carbon not impregnated with PTIO was also burned under the condition of a smoking volume of 35 mL / puff. Calculate the reduction rate of nitric oxide in the mainstream smoke. The results are shown in Figure 3. In FIG. 3 , line a represents the results obtained in the case of using activated carbon III impregnated with PTIO, and line b represents the results obtained in the case of using activated carbon without PTIO. As can be seen from the results shown in Figure 3, when the smoking volume increased, although the reduction rate of NO decreased compared with Example 1; but the sample using the activated carbon III impregnated with PTIO showed a better performance than the cigarette test without PTIO activated carbon. The sample had a significantly higher nitric oxide reduction rate...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More