What Are the Different Uses for Tar?

Smoke tar refers to a layer of brown oily substance accumulated in the mouthpiece used by smokers, commonly known as smoke oil. It is the product of incomplete combustion of organic matter under hypoxic conditions. It is an extremely complex mixture of many hydrocarbons and oxides, sulfides and nitrides of hydrocarbons, including benzopyrene, cadmium, arsenic, beta, amines, nitrosamines, and radioisotopes, a variety of carcinogens and phenol The characteristics of the role of carcinogens such as fumaric acid and fumaric acid, although the amount is very small, but it has a regular, repeated, long-term accumulation effect.

Tobacco itself contains only a small amount of polycyclic aromatic hydrocarbons, and most of the polycyclic aromatic hydrocarbons in tar are generated during smoking. Its generation, enrichment, and value-added are closely related to the local ignition temperature of the cigarette. When smoking, the local temperature of the paper cigarette can reach 600-900 ° C. At the time of smoking, the temperature of the red-red part can reach 980-1050 ° C. During the interval between smoking, the temperature drops by about 100-150 ° C. In the smoking process, except for the outer part of the cigarette, it is basically burned under insufficient oxygen supply conditions, not only generating a large amount of carbon monoxide, but also increasing the types of polycyclic aromatic hydrocarbons such as benzene as the coking temperature increases. Carcinogens such as syrup, tea, tincture, and phenol are mostly produced at 700-900 ° C, and

The smoke tar produced during smoking is about 1 to 6 of the weight of the original tobacco. The yield of tobacco tar has a certain relationship with the frequency of smoking. The more times a unit is sucked, the more tar is produced. The amount of tar produced by smoking 3 puffs per minute is almost double that of one puff per minute. The amount of tar production is also related to the length of the cigarette, which is conceivable, because the tobacco tar smoke generated at the place where the tobacco is lit, passes through the unburned part of the cigarette, and part of it is absorbed by the tobacco. When the ignition point is getting closer to the end, most of the tar generated enters the smoker's respiratory tract. The ratio of the amount of tar generated in the first half and the second half of a cigarette is about 1: 1.4.

In smoke tar

Jiangsu Province, China

No tar volume allowed for sale

In order to continue to promote the harm reduction and tar reduction of cigarettes, the State Tobacco Monopoly Administration issued a notice recently to adjust the maximum tar limit for cigarette boxes.

The notice states that cigarettes with a tar volume of 11 mg / piece or more produced from January 1, 2013

Cigarettes with tar above 15 mg are blocked from the market

Products are not allowed to be sold in the domestic market. From January 1, 2013, cigarette products with a tar volume of 11 mg / piece or more will not be imported.

The notice emphasized that all cigarette industrial enterprises should do a good job of adjusting the labeling of the tar quantity of cigarette boxes. In the quality supervision and inspection of cigarette products, cigarettes with a tar volume of more than 11 mg / piece produced after January 1, 2013 will be judged as unqualified products.

It is reported that in recent years, the National Bureau has continuously adjusted the maximum tar limit for cigarette boxes, from 17 mg / piece in 2001 to 12 mg / piece in 2011.

The cigarette tar content currently on the market is mostly 12 mg. Hong Kong urban residents have concentrated purchases of Taishan (Red General), Taishan (White General), Taishan (Hongtu), Hongta Mountain, etc., all with a tar content of 12 mg / branch. Su Yan (Golden Sand) and Soft Chinese were both 13 mg / branch. On many cigarette packages, especially women's cigarettes, "light cigarettes with low tar content" are marked, and the lowest tar content is 1 mg / piece in Zhongnanhai.

The notice of the State Tobacco Monopoly Administration also pointed out that from January 1, 2015, the amount of tar will be further reduced to not more than 10 mg / branch; key backbone brands must have more than 3 specifications of tar amount below 6 mg / branch. At the same time, a batch of products with a tar content of less than 3 mg / branch was reserved. ^[4]

It is understood that under the dual pressure of the government and the market, domestic tobacco companies have been actively engaged in technology development research in order to reduce coke and harm and meet the requirements. ^[5]