a method and system referred to as palm with large reliefs exceeding 1 μm and being as large as 100 μm . the microstructures can be either deterministic , or random , the first obtained by copying an original supermaster , and latter obtained by copying a laser speckle pattern . the master process entails copying a supermaster into the form of the microstructure constituting a pattern on the patterning cylinder , to be then continuously multiplied in the palm system , in a continuous roll - to - roll web process . the latter method , together with the related system , is the subject of this invention . the rolls continuously repeat the master pattern , copying by adhesive with large viscosity on acrylic as well as by a monolithic process . the monolithic process can be accomplished using temperature and pressure , or by uv - cured polymerization . therefore , the invention comprises three alternative processes : one , hybrid , and two monolithic ones . in the palm process , an epoxy is wet - coated on film substrates such as polycarbonate , polyester , , or other flexible material . the adhesive , in liquid form , is applied to the substrate by a self - metered coating sub - process . in the present invention , the adhesive is used for forming the microstructure pattern . the microstructure pattern is replicated from a master roll or image drum onto a coating roll .