*Why is the coloring effect bad? The reasons are as follows: 1. The frequency of operating the machine is too high;
2. The needle is too deep, causing bleeding or excessive tissue fluid;
3. The needle angle is not vertical;
4. The needle sucks blood or tissue fluid mixture into the needle during operation, resulting in poor coloring effect;
5. Chemicals encountered during the post-repair period;
6. Wipe the cotton sheet without wringing out the moisture or excessive moisture;
7. The skin is not tight during operation, which causes the skin to become loose and unable to be colored;
*How to avoid the above problems? Methods as below:
1. Do not operate too fast, operate carefully and patiently, and master the operation techniques;
2. Do not insert the needle too deep during the operation. Generally, the first operation is recommended to be shallow rather than deep. If the operation is shallow, you can replenish the color after repair. If the operation is too deep, it will cause bleeding or the skin tissue fluid will penetrate too much, which will easily cause the color to appear. When the mixed color material enters the skin, it will cause problems such as discoloration together with the color material when the blood scabs.