摘要:
The invention relates to a multilayered protected composition, in particular to multilayered paper products having special properties which protect securities or valuable documents from counterfeit. The multilayered protected composition is formed with an additional multilayered element, which is formed on the surface of paper and includes a multicolor coating in the form of a periodic raster made by at least two inks of different colors which are contrasted relative to the surface of the paper and lie outside of the range of the color coverage of the CMYK system. The inks comprise luminescent compounds having daytime luminescence in the visible spectrum of light under the natural light. Combinations of inks are such that the cumulative color of the additional protection element is perceived visually as being unsaturated and close to achromatic. The multilayered protection element can form a graphical figure or be part of a figure which changes its visual image by virtue of changing its color gamut, optical density and/or saturation when a document is copied on a printer operating using CMYK color system.
摘要:
The invention relates to the field of counterfeit protection of products made on a paper carrier or on a polymer carrier, and is intended for visual verification of the authenticity of protected printed products. A product, for instance, a valuable document, comprises a carrier and a multilayer security element containing a latent image. The security element is indiscernible when the document is viewed at the right angle to the surface thereof, but becomes visible when the angle of viewing changes. The latent image is comprised of two identical graphical elements of different color, which are formed by means of mutual offset of portions of a three-dimensional raster and of a raster of a multicolor cover by a distance multiple of half the period of the raster, and which are positioned in a single plane relative to each other. The elements are disposed at a distance which allows for viewing a stereoscopic image thereof by using anaglyph glasses and/or color filters. The technical result is an increased level of protection of a valuable document.
摘要:
The invention relates to the field of counterfeit protection of products made on a paper carrier or on a polymer carrier, and is intended for visual verification of the authenticity of protected printed products. A product, for instance, a valuable document, comprises a carrier and a multilayer security element containing a latent image. The security element is indiscernible when the document is viewed at the right angle to the surface thereof, but becomes visible when the angle of viewing changes. The latent image is comprised of two identical graphical elements of different color, which are formed by means of mutual offset of portions of a three-dimensional raster and of a raster of a multicolor cover by a distance multiple of half the period of the raster, and which are positioned in a single plane relative to each other. The elements are disposed at a distance which allows for viewing a stereoscopic image thereof by using anaglyph glasses and/or color filters. The technical result is an increased level of protection of a valuable document.
摘要:
The claimed group of inventions discloses a layered product on a paper or polymer substrate with an optically variable structure, and also a method for manufacturing same. The layered product comprises a coating in the form of a printed screen, and a three-dimensional screen. The three-dimensional screen is made in the form of elements with a symmetrical and/or asymmetrical profile to form a relief on both sides of the substrate, and is so arranged in respect to the printed screen that the three-dimensional screen is at least partially located above the printed screen. The width of lines, the distance between lines of the printed and three-dimensional screens and the mutual orientation of the screens are selected such that they form a moire image which is hidden, when the data carrier is viewed at a right angle, and becomes visible when the data carrier is viewed at an acute angle. The present invention provides an increase in the security of products, and also an increase in the technological effectiveness and a reduction in the cost of the security element owing to the reduction of passes in a printing machine.
摘要:
The invention relates to counterfeit-protected data carriers and methods for protecting printed products against counterfeit. Data carrier has a transparent portion with graphic elements disposed on both sides thereof in the form of a high resolution line screen, said graphic elements forming a periodic structure, wherein the elements are mutually arranged such that they form an image which is hidden when viewed in reflected light and visible when viewed in transmitted light; furthermore, when viewed from a different direction in transmitted light the image changes from positive to negative and vice versa, and/or the color of the image changes completely or partially, and/or the effect of motion of monochrome or multi-colored moire fringes appears. Method for manufacturing the data carrier comprises applying graphic elements to both sides of a transparent portion of the carrier by printing. The data carrier retains its flatness after printing. The invention enhances the security of products, provides a novel optically variable effect and/or a motion effect, as well as improves the production effectiveness and reduces the cost of the security element.