UV coating common faults and troubleshooting methods (5)

Five, after the glazing

1, the cause of the failure

1UV Varnish contains many slip-proof anti-sticking ingredients such as silicon and wax, which affects the adhesion of the electro-aluminum.

2 Electro-aluminum selected model is not suitable.

3 The temperature and pressure of hot aluminum are not suitable.

4 The surface of the ink does not dry, affecting the curing of the varnish bottom layer.

2, elimination method

1Select special UV varnish that can be hot aluminum.

2 use of aluminum can be hot stamping plastic.

3 Adjust the temperature and pressure of the hot stamping process accordingly.

4 For products that have been exposed to light, trace amounts of ethyl alcohol or wax that have migrated to the surface of the varnish coating can be wiped with a small amount of ethanol before hot stamping.