The principle of laser packing
?Laser packing technology is also so, first with the laser etching technique of printing over text (but usually than laser etching 7building too shallow, in order to ensure the smooth surface), and then use the two printing ink printing
then use the paint filling, this color will penetrate the skin texture, then do not wash with water or wear off.
The principle of laser filling process is somewhat similar to "tattoo", is to use a pattern tattoo needle thin lines on the skin
