Filters for Cigarettes, Pipes, and Cigars and Related Products

[0032]Cigarette attachments were obtained from Zhejiang Sanda Smoking Sets Co. Ltd. A Marlboro Medium cigarette was inserted into the cigarette attachment and a smoking machine was used to do the smoking test. The weights of the cigarette attachment before and after the smoke test were 0.9026 g and 0.9278 g, respectively. The weight gain of the cigarette attachment (mainly tar) is 0.0252 g.

[0033]A cigarette filter containing four layers of nanofiber coated fabrics in accordance with the teachings found herein was then prepared. The prepared filter was then inserted into the cavity of the cigarette attachment. Smoking was performed using the same kind of cigarette, cigarette attachment, and smoking machine. The weight gain of the cigarette attachment was 0.8654 g and 0.9086 g, respectively. The weight gain of the cigarette attachment with the instant filter is 0.0432 g. which is 71.4% higher than the one without our filter. Thus, the instant filter for cigarette attachment with four ...

[0035]A pipe manufactured by Missouri Meerschaum Co. and pipe tobacco were purchased for testing. The pipe, as purchased, had a paper type filter wrapped with a plastic film. The weight of the tobacco used for each test was 0.7057 g. The weights of the filter before and after the smoking test using our smoking machine were 0.4727 g and 0.4984 g, respectively. The weight gain was 0.0257 which included tars and some moisture (contained in the tobacco).

[0036]Referring now to FIG. 4, a pipe filter in cylindrical form, which had the same length and diameter as the original filter which came with the pipe, was prepared in accordance with teachings found herein. The same amount of tobacco and same smoking machine were used for a subsequent test. Following a second smoking test, the weights of the nanocomposite filter before and after the smoking test using the smoking machine were 0.1643 g and 0.3790 g, respectively. The weight gain was 0.3091 g which, again, included tar and some moisture...

[0038]A pack of Dutch Masters cigars was purchased for testing. These cigars typical in that they do not contain any filter. However, a filter was prepared containing four layers of nanofiber coated fabric as shown in FIG. 3 and attached to a Dutch Master cigar. The cigar and filter were placed in the cavity of a smoking machine. The weights of the prepared filter before and after the smoking test using our smoking machine were 0.1196 g and 0.2838 g, respectively. The weight gain of the filter was 0.1642 g, which is mainly tar.