The label will discolor evidently once liquid water intrusion and could not be retrieved.
The label could be designed that discolor at pre-set relative humidity or completely immerse.
How it works?
Diffusing: the pre-set graphic will diffuse speedily once contact water
Discoloring: once the liquid water intrusion, the origin color will discolor speedily and the pre-set color will reveal evidently
The water sensitive labels are widely used in marking warranty for mobile, cellphone, batteries, electronic products, electrical appliances, LCD. To provide specific evidence for maintenance services which aim at the hard or wrong identification after the damage by water or the control not accord with standards
The water sensitive labels are also applied as water-proof labels of ocean-going cargoes, which can provide the legitimate identification for water intrusion and the legal evidence for claiming compensation