Patent RU-2496653-C2 (RU)
Inventor: KHOFFMJULLER VINFRID
IPC: B44C1/17
Filed: 2009-08-04
Granted: 2013-10-27
Abstract: FIELD: printing. 
     SUBSTANCE: invention relates to a method of production of protective element with two or more image reproducing layers located with accurate register with respect to each other. The method of production of protective element (1) for a counterfeit-proof paper or valuable object (2) consists in the following steps: a) preparing of first separate part (10) of the protective element having a first substrate (11), the first functional layer (12) with first functional sections (13) and first non-image sections (14) and if necessary the layer (35) of photoresist adhesive on the first functional layer (12), combined with the first functional sections (13); b) preparing of second separate part (20) of the protective element having a second substrate (21) and the second functional layer (22) on the second base (21) or on the intermediate layer (25) between the second substrate and the second functional layer (22) which is made detachable from the second substrate (21) or the intermediate layer (25); c) on the first (10) or second (20) separate part of the protective element the adhesive layer (30) of radiation-conditioned adhesive is applied if on the first functional layer (12) of the first separate part (10) of the protective element a layer (35) of photoresist adhesive is not provided, c1) from the first functional layer (12) of the first separate part (10) of the protective element, or c2) from the first substrate (11) of the first separate part (10) of the protective element; or c3) from the second functional layer (22) of the second separate part (20) of the protective element; d) the first (10) and second (20) separate parts of the protective element are combined to each other to the consisting of them a multilayer structure (5) in such a manner that d1) in case when the adhesive is provided on the first separate part (10) of the protective element, the adhesive layer (30, 35) and the second functional layer (22) of the second separate part (20) of the protective element face each other, or d2) in case when the adhesive is provided on the second separate part (20) of the protective element or the adhesive layer (30) and the first functional layer (12) of the first separate part (10) of the protective element or the adhesive layer (30) and the first substrate (11) of the first separate part of the protective element (10) face each other; e) the adhesive layer (30) in cases when the radiation-conditioned adhesive is provided; e1) is irradiated after formation of the multilayer structure (5) through the first separate part (10) of the protective element or e2) in cases c1) and c2), when the radiation-conditioned adhesive is provided on the first separate part (10) of the protective element, is exposed alternately to form a multilayer structure (5) by irradiating the first separate part (10) of the protective element through its first functional layer (12), which serves as a mask for the exposure, whereby in the adhesive layer (30) the non-irradiated sections (33) are formed which are aligned with the first functional sections (13), as well as radiation-conditioned sections (34) aligned with the first non-image sections (14); f) the first (10) and second (20) separate parts of the protective element are glued together, preferably at increased pressure and increased temperature, at that glueing is provided by either the non-irradiated sections (33), or the conditioned sections (34) of the adhesive layer (30) or sections with photoresist adhesive (35); g) the second substrate (21) is separated from the glued multilayer structure (5), at that the second functional layer (22) to form second functional sections (23) or g1) remains adhered to the non-irradiated sections (33) of the adhesive layer (30) but does not stick to its conditioned sections (34) and is separated on them together with the second substrate (21) or g2) remains adhered to the conditioned sections (34) of the adhesive layer (30) but does not stick to its non-irradiated sections (33) and is separated on them together with the second substrate (21) or g3) remains adhered to the sections with the photoresist adhesive (35) but does not stick to the sections without it and is separated on them together with the second substrate (21). 
     EFFECT: development of the method that would enable to carry out pictures or images combined with each other with accurate contours and high register accuracy. 
     17 cl, 7 dwg