Agent A+Agent B in Taiwan Province Province
This method has been used in the beauty industry for a long time. It corrodes the skin with dilute sulfuric acid, and the epidermis has no problem, but it will leave scars on the dermis. The principle is chemical cauterization.
Removing pigment by freezing method
When liquid nitrogen evaporates from "liquid" to "gas" at-169℃, part of the moisture in the skin is taken away, causing the skin to die and regain its weight. Its disadvantage is that liquid nitrogen ejects gas, the area is difficult to control, and it is easy to blister, infect and leave scars after freezing.
Heat transfer method in Shenzhen
Choose metal needles of different sizes and shapes and put them on the skin after heating with fire. Use the residual heat of metal to burn the skin, make it peel off and take away the color. Its disadvantage is that it is difficult to control the temperature, time and depth. Overheating can cause burns and scalds, and dermal injuries can leave scars, which are prone to blisters and infections.
Laser tattoo
Most people think that laser tattooing is fast and good, but those who have used it will know that there are many things that laser can't do, such as the green and non-chemical pigments of tattoos, which can't be washed off by laser, and the colors that laser can't wash off three times are also difficult to wash off.
Because the working principle of laser is to convert light energy into heat energy, chemically synthesized black and red dyes can absorb more energy of corresponding wavelength, so they are easy to be washed off, while other colors are difficult to absorb energy, so they cannot be washed off. Laser energy is not enough to affect non-compound pigments, so pigments containing metal atoms cannot be washed away.
Tattoos, as a part of human history and culture, have lasted for more than two thousand years. Most of the impressions of Chinese characters in life are incredible, and they are directly thought to be exclusive products of gangsters. In fact, this concept is not suitable for modern times. In recent years, with the increasingly open society, people have accepted a lot of cultural information from Europe, America, Japan and other countries.
Modern people are not as traditional as before. Tattoos are no longer taboo. Some tattoo workers are husband and wife, lovers, leaving each other's appearance on their bodies as a sign of love, while others are unclean. The first one was handed down by the Maori, tied with shark teeth and animal bone spurs, dipped in ink, and hammered into the skin with a small hammer. The second is to tie several needles together and tie them to a wooden stick, and then artificially pierce the skin.