Single row needle:
The combination of multiple needles into a single row of needles, mostly based on four to six needles, row needles have the advantage of combining single needles and round needles, easy to insert the needle, and the penetration of the penetration of the pigment is also sufficient, you can use the minimum number of "thorns" It produces more pigment than the round needle, but it is not suitable for piercing the color patches on the entire skin.
Double-row pin:
Combine multiple needles to form double-row needles, such as five-pin single-row needles, pick up two or four needles and fix them into two rows, double-row needles with more than five needles can be deduced by analogy. Disadvantages, because the needle is opened into scattered needle points, it can pierce the entire color block area on average than a single row of needles. This is the most commonly used needle type at present. It must be noted that usually there will be a force surface above 13 needles. When the skin is pricked, the skin will be pressed and formed into a concave shape. If the needle is too wide, it will only be forced on both sides of the needle, and the uneven color may be pierced. It sticks into a circular arc shape to fit the concave shape formed by the compression of the skin. If it does not stick into a circular arc shape, it can be the same, as long as the skin is leveled as much as possible.
