Patent RU-2718932-C2 (RU)
Title: Method of creating surface effects in coating, in particular in uv-curable layers, device for hardening coating fluids, device for applying coating fluid medium, coating fluid medium, article
Inventor: RYUEDI ROLAND
IPC: B05D3/02
Filed: 2016-11-02
Granted: 2020-04-15
Abstract: FIELD: chemistry. 
     SUBSTANCE: invention relates to a method of creating surface effects in a coating which is hardened by energy-intensive corpuscular radiation, particularly UV radiation. Method of creating surface effects in a coating which is capable of solidification by energy-intensive corpuscular radiation, in particular UV radiation, involves depositing a coating onto a base of a fluid, for example a radically curable, particularly a UV-curable lacquer. Coating fluid medium is designed so that the reactivity on the surface of the deposited coating film is purposefully different from the reactivity in the volume of the applied coating film. Method also includes irradiation of coating with energy-intensive corpuscular radiation, thus at first stage only surface coating layer is processed, wherein said surface layer has thickness of 10 nm to 1 mcm, and at second step coating is cured throughout its thickness. Device for hardening coating fluids, which are capable of hardening with energy-intensive corpuscular radiation, in particular UV radiation, in which curing is carried out in two steps. Power introduced by means of the device into the coating for its hardening can be controlled so that at the first stage only the surface layer of the coating is treated, and at the second stage the coating is cured along the whole thickness, and the above surface layer has thickness from 10 nm to 1 mcm. Device for creating surface effects on at least one portion of base coated with coating, made with possibility of hardening by energy-intensive corpuscular radiation, in particular UV radiation, comprises mainly device for location of base, facility for transportation of base between separate working positions, device for application of coating fluid medium on base. Device can be made with the possibility of application of the fluid medium of the coating along the whole area of the base surface or only in its one section. Device for creation also includes device for hardening of coating. Hardening is carried out in two steps. Power introduced by means of the device into the coating for its curing can be adjusted mainly with the possibility of processing at the first stage only the surface layer of the coating. Surface layer has thickness from 10 nm to 1 mcm, and at second stage - curing of coating throughout thickness. Besides, the device for creation includes mainly the device for removal of the base, and also mainly the device of the plant control. Fluid medium of coating is made with possibility of hardening by energy-intensive corpuscular radiation, in particular UV radiation, in particular due to radical polymerisation, and also available to micro-folding process. Micro-folding occurs due to irradiation of surface layer of applied coating, for example due to exposure to UV-C-radiation with wave length of more than 240 nm, thus, at first stage only surface coating layer is treated. Surface layer has thickness of 10 nm to 1 mcm, and at the second stage, the coating is cured over its entire thickness. Article for use in printing industry, and/or for aviation, and/or for water transport includes a base and a coating applied thereon. Coating in at least one area includes a surface layer with micro folding, having thickness from 10 nm to 1 mcm. 
     EFFECT: technical result of group of inventions is simplification and cost reduction when creating surface effects with provision of various optical and/or tactile-sensor effects. 
     33 cl, 13 dwg