What is a cigarette?
There are many different sorts of cigarettes around the world. Smokers from different countries prefer cigarettes of different strength and with various smells and aromas.
Tobacco
As a rule, producers use various sorts of tobacco when they manufacture cigarettes. Tobacco is imported from different countries and it is combined in specified way in order to please different smell for smokers. The smell, aroma and taste of cigarettes depend on the kind of bag.
In the tobacco industry are used 3 main sorts of tobacco like: “Virginia”, “Barley” and Oriental.
The necessities of the smokers are different depending on in which country do they live. For example, in Great Britain, the smokers prefer cigarettes which are from English bag, which contain mainly the Virginia tobacco. In the USA, the smokers choose cigarettes from American bag, which composition includes all 3 sorts of tobacco.
Cigarettes Paper
It is used a special paper for cigarettes manufacturing. This special paper affects the stability of ashes forming and the level of smoking components which fall into the lungs of the smokers. This kind of paper is of high porosity, air permeability and it is used when are produced cigarettes with low content of gums.
Filter
Filter is destined to reduce the quantity of smoke and specified components which fall in smoker’s body. Majority of filters are made of organic fibers – cellulose. Cellulose doesn’t have it’s own taste and is sufficiently encrusted to hold the shape. Together with other elements of cigarettes construction, such as ventilation, filters usage with different efficiency of filtration permits to obtain various levels of content of smell and taste.
Ventilation
Cigarette is ventilated in order to lower the level of smoking components, first of all, gum, and nicotine and monoxide carbon. All cigarettes are ventilated at the expense of natural air permeability of cigarette’s paper. Moreover, many cigarettes are ventilated over perforation of filter’s fillet. In process of air inhaling, which enter over perforation, is combined with smoke which comes from decay zone of cigarette. Ventilation of the filter is the base and obligatory characteristics of cigarette with low content of gums.
Smoke
Tobacco’s smoke is the most complex and the most active studied mixture around the world. As many other natural substances, tobacco contains thousand components (at the moment are about 2500). During of tobacco burning depending on temperature and concentration of oxygen are generated about 4000 smoking substances. The concentration of many of them is extremely small.
The main plume - it is the smoke which falls into smokers’ respiratory system when he inhales, and secondary plume – the smoke which is exhaled from smolder end of cigarette.
The complex structure of cigarette smoke is one of difficulties which the scientists encounter when they decide to analyze the tobacco’s composition. So, in this case, they can’t decide which substances impact the health of the smokers, provoking lots of diseases related to smoking.
