Embossed cigarette wrapper with improved holding force

Details Embossed cigarette wrapper with improved holding force Embossed cigarette wrapper with improved holding force

1998-05-22

2000-02-01

Derrington, James

Tobacco

Tobacco or tobacco substitute product or component part thereof

Cigar or cigarette

162139, 131364, A24D 102, A24D 100, D21F 1100

Patent

active

060191066

DESCRIPTION:

BRIEF SUMMARY
TECHNICAL FIELD

The present invention relates to a cigarette whose quality can be improved and maintained at the time of manufacture and in the subsequent distribution process.


BACKGROUND ART

One of the most important factors in improving the quality of cigarette is to prevent shredded tobacco from dropping from the cut end of cigarette. Therefore, the filling density at the cut end portion of cigarette is increased as compared with that at other portions, whereby the shredded tobacco is prevented from dropping from the cut end. More specifically, although a cigarette is produced by cutting a tobacco rod as publicly known, the tobacco rod has, at fixed intervals, high-density portions in which the filling density of shredded tobacco is increased. The tobacco rod is cut at the high-density portions to obtain cigarettes or double cigarettes. The double cigarette having a length twice as long as that of cigarette which has a high-density portion remained at the center thereof.
However, even if the tobacco rod is cut at the high-density portions, shredded tobacco sometimes drops from the cut end of cigarette or double cigarette. Also, when the double cigarette is cut into two cigarettes to produce a filter cigarette from the double cigarette, shredded tobacco sometimes drops from the cut end of cigarette in the subsequent transportation process thereof.
Further, not only at the time of manufacture of cigarettes or filter cigarettes as described above, but also in the subsequent distribution process, shredded tobacco sometimes drops from the cut end of cigarette or filter cigarette.
Nowadays, a cigarette manufacturing machine for manufacturing a tobacco rod has a tendency toward higher speed, so that a slip between the paper and the stream of shredded tobacco increases. Such an increase in slip causes variations in formation and pitch of high-density portions in tobacco rod, and also causes the shredded tobacco to be broken. As a result, the filling density and holding force of shredded tobacco at the cut end of cigarette or double cigarette are decreased.


DISCLOSURE OF THE INVENTION

An object of the present invention is to provide a cigarette which can prevent shredded tobacco from dropping from the cut end thereof and is suitable for a higher-speed cigarette manufacturing machine.
To achieve the above object, a cigarette in accordance with the present invention comprises a shredded tobacco filler; a paper for wrapping the filler, the paper having lap portion formed by both of side edge portions to be lapped and bonded to each other; and means for increasing a coefficient of friction of the paper with respect to the filler.
According to the above-described cigarette, the inner surface of paper has a high coefficient of friction with respect to the shredded tobacco filler. Therefore, the paper firmly holds the shredded tobacco filler, so that the dropping of shredded tobacco from the cut end of cigarette is decreased. In the process of manufacture of cigarettes, before the shredded tobacco filler is wrapped with the paper, the slip between the paper and the filler is decreased. This decrease in slip inhibits variations in filling density in the tobacco rod, permits exact cutting of tobacco rod, and reduces the breakage of shredded tobacco. This greatly contributes to the prevention of dropping of shredded tobacco from the cut end of cigarette.
Specifically, the means for increasing the coefficient of friction includes frusto-pyramidal formulations or convex portions formed so as to be distributed on the inner surface of paper. These convex portions bite into the shredded tobacco filler, so that the paper firmly holds the filler. The convex portions are formed at least at the paper portion corresponding to the cut end portion of cigarette. Even in this case, the shredded tobacco is effectively prevented from dropping from the cut end of cigarette. The convex portions may be distributed in the whole area of the paper, or in the whole area of the paper except both the side edge portions of the paper. In the

REFERENCES:
patent: 2667170 (1954-01-01), Lebert
patent: 2981261 (1961-04-01), Rupert
patent: 3228402 (1966-01-01), Lebert

Affiliated with

Also associated with

Rating

Embossed cigarette wrapper with improved holding force does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Embossed cigarette wrapper with improved holding force, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Embossed cigarette wrapper with improved holding force will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-930430