Identifying the authenticity of cigarettes is an important skill in daily operations. The following eight elements should be mastered to identify the authenticity of cigarettes:

First, the appearance: the packaging of real cigarettes is square, flat, and the openings are neat; the packaging of fake cigarettes is irregular and the openings are rough. Transparent paper for real cigarettes is generally made of BOPP material. Its characteristics are: good surface gloss, low friction coefficient, high transparency, toughness, crisp sound, tight and neat after packaging, and no wrinkles that cannot be stretched; the transparent paper used for counterfeit cigarettes Generally thick, dull, poor transparency, loose after packaging, and the surface is unclean.

The second is printing: the printing technologies for cigarette label paper mainly include gravure printing, offset printing, screen printing, and flexo printing. Currently, gravure printing and offset printing are most widely used in cigarette trademark production. The biggest difference between gravure printing and offset printing is that offset printing solid text does not require dots, so its edges are smooth; gravure printing must have mesh under any circumstances, so the outline edges of its solid text are jagged.

In addition, the printing color of real cigarettes is pure, uniform, complete and shiny, the printed text is clear, the edges are complete, the color registration is uniform, and there is no leakage; the printing of fake cigarettes is turbid, lackluster, and has serious leakage. , the printing is rough and the edges are blurry.

The third is anti-counterfeiting: Currently, the most widely used anti-counterfeiting technologies include laser holographic anti-counterfeiting, color-changing inks, watermarks, colored fibers, etc. The common ones are mainly colored fiber and laser holographic anti-counterfeiting:

(1) Colored fiber: For example, many products of Hongta Group add colored fiber filaments to the label paper of the box, and some foreign cigarette tax stamps also add There are colorful fiber filaments. This fiber is added during the papermaking process. Before opening the package, you can see a few faint fibers. After opening the package and tearing the paper, the red fibers in the pulp layer are more obvious, and you can take out the colored fibers one by one. . The colored fibers of fake cigarettes are usually painted by hand and can only be seen on the surface of the trademark paper. After the paper is torn apart, there are no colored fibers in the pulp.

(2) Laser holographic anti-counterfeiting: It is mainly used for trademark anti-counterfeiting of high-end cigarettes. It has the characteristics of high resolution, high brightness and high definition. Different levels of patterns can be clearly seen by turning at different angles. The patterns at each level will not overlap. The laser holographic pattern on the counterfeit cigarette trademark cannot be clearly distinguished between the different layers of the pattern when it swings, making it appear blurry.

The fourth is the steel seal: the letters or numbers of the real cigarette steel seal are generally arranged in high and low levels, uneven, and the spacing between each letter or number is not equal, especially the spacing between letters and numbers is generally longer. big. And each letter or number has different depths, and the same letter or number also has different depths. For example, the cigarette stamps of Hubei China Tobacco Company are generally darker at both ends of the letters or numbers and lighter in the middle; counterfeit cigarette stamps are generally More neat and consistent, with equal spacing and consistent depth.

Extended information

The effects of tobacco on the brain: Nicotine diffuses throughout the body through the lung mucosa and oral mucosa. After entering the brain, nicotine can imitate the effects of acetylcholine, a central neurotransmitter. Nicotine receptors on the surface of many neurons bind together. Nicotine has a stimulating effect on the central nervous system, especially within the "reward circuit".

It releases more dopamine by activating related nerves. The halamine and norhalamine contained in tobacco can maintain high concentrations of dopamine, serotonin and norepinephrine in nerve synapses by inhibiting the activity of catabolic enzymes.

As the maintenance effects of dopamine, serotonin and norepinephrine are strengthened, the person becomes more alert and focused, making it easier to relieve worries and endure hunger. Tobacco can cause nausea, dizziness, and headaches.

Tolerance and Dependence: Regular smoking keeps nicotine levels in the brain at high levels. Neurogenic receptors are becoming less and less sensitive to nicotine, and the stimulating effect on dopamine release is also weakened. The original amount of cigarettes can no longer satisfy the smoker's pleasure, and the smoker develops tolerance to nicotine.

When a smoker stops smoking for several hours (sleep time), the nicotine content in the body decreases and the neuronal receptors become extremely sensitive. At this time, the activity of acetylcholine exceeds the normal level, making the smoker become irritable. , and wanted to smoke.

If you can smoke a cigarette at this time, it can over-stimulate the neurogen receptors and promote the release of large amounts of dopamine.

Through this phenomenon, we can understand why the first cigarette of the day can bring great pleasure to "old smokers", and smokers are therefore trapped in a vicious cycle of increasing addiction.

Baidu Encyclopedia - Cigarettes

Baidu Encyclopedia - Cigarettes