Claims
- 1. A cigarette comprising:
- a shredded tobacco filler;
- a paper for wrapping said filler, said paper having a lap portion formed by both of the paper side edge portions to be lapped and bonded to each other; and
- a matrix of frusto-pyramidal formations on an interior surface area of said paper, the frusto-pyramidal formations increasing a coefficient of friction of said paper with respect to said filler.
- 2. The cigarette according to claim 1, wherein said frusto-pyramidal formations are formed at least at a paper portion corresponding to the cut end of cigarette.
- 3. The cigarette according to claim 1, wherein said frusto-pyramidal formations are formed on a surface area of said paper except on at least one side edge portion of said paper.
- 4. The cigarette according to claim 1, wherein said frusto-pyramidal formations are formed on an entire surface area of said paper.
- 5. The cigarette according to claim 1, wherein said frusto-pyramidal formations are obtained by embossing said paper.
- 6. The cigarette according to claim 5, wherein said frusto-pyramidal formations increase the permeability of said paper.
- 7. The cigarette as defined in claim 1, further comprising a filter.
- 8. The cigarette as defined in claim 1, wherein the frusto-pyramidal formations are formed as adjacent rows of frusto-pyramids.
- 9. The cigarette as defined in claim 8, wherein bases of at least two frusto-pyramidal formations are separated by a flat surface of said paper.
- 10. The cigarette as defined in claim 9, wherein said flat surface is formed along at least one tetragonal side of each frusto-pyramidal formation.
- 11. The cigarette as defined in claim 1, wherein an apex and at least one side of each of said frusto-pyramidal formations are formed along a line extending at an interior obtuse downward angle.
- 12. The cigarette as defined in claim 11, wherein each of said frusto-pyramidal formations has four sides extending downward to form a base.
- 13. The cigarette as defined in claim 12, wherein said apex of each of said frusto-pyramidal formations is flat, the flat surface of said apex is a plane in parallel with the surface of the paper.
- 14. The cigarette as defined in claim 13, wherein said apex has a surface area less than the surface area formed by said base of each of said frusto-pyramidal formations, said apex and said base formed in two parallel planes.
- 15. The cigarette as defined in claim 1, wherein the matrix of frusto-pyramidal formations is arranged at least 40.times.40 per 25.4 mm.sup.2 of paper.
- 16. The cigarette as defined in claim 1, wherein at least one frusto-pyramidal formation is separated from an adjacent frusto-pyramidal formation by a distance of at least 0.64 mm, the distance measured from a near proximity flat surface of an apex of said at least one frusto-pyramidal formation to a far proximity flat surface side apex of said adjacent frusto-pyramidal formation.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8-253353 |
Sep 1996 |
JPX |
|
Parent Case Info
This application is the national phase under 35 U.S.C. .sctn.371 of prior PCT International Application No. PCT/JP97/03383 which has an International filing date of Sep. 24, 1997 which designated the United States of America, the entire contents of which are hereby incorporated by reference.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
102e Date |
371c Date |
PCT/JP97/03383 |
9/24/1997 |
|
|
5/22/1998 |
5/22/1998 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO98/12939 |
4/2/1998 |
|
|
US Referenced Citations (3)
Foreign Referenced Citations (6)
Number |
Date |
Country |
46-27358 |
Aug 1971 |
JPX |
58-122994 |
Aug 1983 |
JPX |
5-35900 |
May 1993 |
JPX |
5-73000 |
Oct 1993 |
JPX |
5-96100 |
Dec 1993 |
JPX |
7-5397 |
Jan 1995 |
JPX |