glow in the dark film

Use white underlay in luminous where to buy glow powder or directly printed on a white substrate , can improve brightness and time printed pattern. If the underlying Color is dark , the light emission brightness to be reduced by 50 %.To get the desired brightness light-emitting pattern , glow in the dark film thickness of the luminescent ink should not be less than 100um.Since a lower mesh screen printing ink layer is thick, the effect can be obtained a light emitting pattern is preferable , and therefore it is preferable to use 80-120 mesh screen .