PCT Engineered Electron Beam Technology for Converting Applications - Manual (Page 7)

ELECTRON
BEAM
EMBOSSED
DRUM
COATER
REWIND
UNWIND
EMBOSSED
PATTERN
Figure 7. Backside Embossing
Backside Embossing
The process of EB backside embossing is shown in Figure 7. Many different types of
substrates including paper can be used. The voltage of the EB equipment should be
appropriate for penetration through the substrate. The pattern defined by the embossed
drum can produce almost any feature size ranging from on the order of 1 micron to more
than several inches. Pattern reproduction using EB technology is known to be more
accurate than thermal embossing. The resulting embossed coatings are highly
crosslinked which results in excellent chemical and thermal resistance properties.
Manufacturing of casting papers is an established application of this technology. The
casting papers are used for the subsequent production of textured vinyl and urethane
based films that are found in many consumer products. Patterns defined by EB casting
can also be used to produce wide array of unique tactile and optical effects including
reflective materials and lenticular or holographic images.