Currently, tattoos are often described on the mass media representing the transient or passionate ingredients of young people. But in fact, tattoos have existed for a long time from ancient times and their meaning also vary in each culture. Tattooing on the skin with the purpose of decoration has existed all over the world, the oldest is on the flamming skull Peruvian mummy with 6,000 BC.
Then, how does the tattoo not peel off with the skin?
The answer is that when tattooed
color pigments are inserted deeper inside instead of lying on the outer skin that can be peeled off. Throughout history, cultures use different tattoo methods. The tattoo machine used today has many small needles, is loaded with dyes, stabbed into the skin with a frequency of 50-3,000 times/minute. The needles pierced through the epidermis, allowing the ink to penetrate deeper into the dermis, where the collagen fibers, nerves, blood vessels.
Each time the needle stabbed into the skin, it created a wound, alarm the body that activated the anti -inflammatory process, calling for immune cells to move to the wound and heal the skin. And this has contributed to making the tattoo permanently exist.
First, the great macrophage will re -eat ink traces to prevent inflammation. The macrophages cannot digest or completely eliminate pigments out and so that the ink dyed cells are in the dermis, so they can still day of the dead be seen through the skin. Some squid seeds are suspended in the gel matrix of the dermis, while others blend into skin cells.
the ink also covered the epidermis, but when the skin was healed, the damaged epidermis was peeled off and replaced by new cells, so the amount of dye on this surface layer also peeled off. With professional tattoos, we do not see the phenomenon of blistering or peeling and takes 2-4 weeks to regenerate the epidermis, this time, it is necessary to avoid sun exposure or swimming because it can fade the tattoo.