Hot stamping involves the transfer of a lacquer package onto a substrate by means of pressure and temperature. In the process a hot-melt adhesive already located on the foil is activated and produces the bond to the part being stamped. The carrier (as a rule, polyester) serves as a transport medium for the diffractive structures and is pulled off after the stamping operation.

In the case of laminating foils the carrier and its lacquer layers are laminated onto the full surface of the substrate and remain there. The adhesive is applied in the machine during the laminating process. KURZ has available laminating foils with a PET carrier and an OPP carrier.

A transparent diffractive foil, in contrast to a silver LIGHT LINE-foil, is provided with a highly refractive layer (HRI High Reflex Index Coating) in a special process. Without this layer the holographic structure would no longer be able to be seen.

Hot stamping foils can be processed with all commercially available vertical or rotating hot stamping machines.

Laminating foils can be used in all commonly available laminating machines. As a rule, these are processed in widths of between 500 and 1000 mm. When inquiring about these foils, please specify the processing width.

In principle, yes. Depending on the application, we have available a large selection of hot stamping foil types (commonly referred to as "qualities") tailored to a large variety of substrates, machines, and stamping geometries.

For production technical reasons, fine shim lines will be evident on Laser Multi 8 accross the web at approx every 750 mm. If required, these can eliminated by further processing using precise registration.  In the case of widths above 620 mm a fine seam will be evident in the running direction of the foil.

In the ordinary way along with household or left-over waste. Waste incineration plants are particularly interested in combusting stamping foil waste on account of the good energy balance involved.

In conditions where exposure to direct sunlight is avoided and normal storage temperatures are adhered to (40%-60% relative humidity, 10°- 35° C), a storage life of 12 month should be possible.  

a) Avoid varnished foundation
b) Convex setting (pyramid upside down)

a) perfect, sellotape-strength adhesion of the foil to the substrate
b) contour-sharp, glimmer-free stamping
c) suitable printing ink systems (foil colors that dry well and adhere to plastic surfaces)
d) close cooperation between the processor, foil and color/lacquer supplier
e) surface tension of the foil to be printed (ideally 40-48 dyn/cm)