1. The principle of tattooing is to pierce the dye into the dermis by hand or electroacupuncture (electroacupuncture will be introduced in detail below). When piercing into the dermis, some dermal cells are destroyed and the dye is mixed. The dye stays in a stable state around the damaged cells and settles on the paper like ink for writing calligraphy. As the body's immune system repairs itself, those tiny dye particles will be engulfed by large cells and stored in those cells for a long time, eventually transforming into a dye-colored, stable "fibroblast" that takes root in the epidermis and Between the leather. The dye particles only undergo physical changes during the entire process, but human tissue undergoes physical + biochemical changes during the entire process.

2. There are two types of tattoos: traditional and modern. Traditional ones are still like tattoo artists in Japan and the Pacific Islands stably "embedding" dye into your skin stitch by stitch. After all, the hands have to be inserted deeply or shallowly, so tattooing by hand is still quite painful. Modern tattoos use electroacupuncture that vibrates 80-150 times per second to inject into your skin, and the depth is kept relatively even. As the color changes, the tattoo master will change the same type of needle. Usually color tattoos include several important steps such as crocheting, edging, and coloring. Each step usually involves a different color. Tattoos of the same color are less likely to differentiate between these steps.

3. If you want to get your own tattoo, I can tell you for sure: this is a job that takes time and there is no crash course! Your question tells me that you don’t know how to get tattoos now. So I suggest you find an experienced tattoo artist!