HOLOGRAM EMBOSSING
Embossing rolls
During the long-chain holograms production process, the quality of the holographic products depend of several key factors. One of them is quality of the embossing cylinders. Even having the best holographic master in the world and highest quality working shims, you can lose the brightness and visibility of the images after the embossing. Do not save money at the cost of quality!
Frequency asked question is: Which kind of rolls to order, hard or soft? The answer is: The both. Sometimes is reasonable soft, in other situation hard embossing.
Hard embossing rolls
In spite of the many advantages of the soft rolls, the hard ones are still in use in optical embossing. Some kind of originations, give not very good printable relief. In this cases the hard cylinders better transfer the image data from nickel shim to substrate.
Made from special, high-carbon, high-chromium tool steel, hard rolls possessing extremely high wear resisting properties. After air hardening we use high-precision grinding equipment for optical-quality surface and close-toleranced dimensions. Cylindricity deviation after finishing is within 1 micron.
Soft embossing rolls
They are also steel rolls, but have special plastic cover with unique mechanical properties. Combination of hardness and compliance provides the quality of hard with the versatility of soft embossing.
Features and advantages:
Temperature range up to 550°F/288°C
Much easier for maintenance
Much longer life of the working shims and the die roll
Using of flat embossing shims
Wide printing area
Manufacturing capability
Any type of rolls, hard or compliant
Standard, for our Embossing machine
Custom, according customer drawings
Length up to 1000 mm and weight 180 kg