Wet film cold stamping process

After the UV adhesive is applied, the adhesive is first hot stamped and then the UV adhesive is cured. The main process steps are as follows:

(1) Print free radical UV adhesive on web printing materials.

(2) Composite cold stamping foils on printing materials.

(3) Curing free radical type UV adhesives, since the adhesive is sandwiched between the cold stamping foil and the printing material, the UV light must pass through the hot stamping foil.

Adhesive layer.

(4) The hot stamp foil is peeled off from the printing material, and a stamping graphic is formed on the printing material.

It should be noted:

For one, the wet film-covering cold stamping process replaces the traditional cationic UV adhesive with a radical UV adhesive.

Second, the initial viscosity of the UV adhesive is stronger, and it can no longer be viscous after curing.

Thirdly, the aluminum layer of the hot stamping foil should have a certain light transmission, so as to ensure that the UV light can pass through and initiate the UV adhesive curing reaction.

The wet film-covering cold stamping process can connect hot stamping metal foils or holographic foils on a printing press, and its application range is also becoming wider and wider.