Method of forming hidden patterns in porous substrate

FIELD: manufacturing technology.

SUBSTANCE: invention relates to production of porous substrate with textured image comprising hidden colour images, by forming hydrophobic images on a hydrophilic surface, characterised by that in a porous substrate, structural channels are formed in form of an image, using hydrophobic solution for printing, which does not contain a dye, wherein coloured area is applied on back surface of porous substrate. Furthermore, present invention relates to said porous substrate with textured image and to a method of transforming said image into visible state.

EFFECT: disclosed is a method of producing porous substrate with textured image.

20 cl, 7 dwg

 



 

Same patents:

FIELD: printing industry.

SUBSTANCE: data protection device comprises an optically variable diffraction structure coated with scratch layers, lying above the data to be protected. Besides, the device comprises at least the first and the second non-transparent metal layers separated with a flexible light-absorbing separation layer. Invention also relates to a scratch card, which comprises such a device.

EFFECT: group of inventions provides for development of such a data protection device, which guarantees high non-transparency, even when a scratch foil is weakened.

11 cl, 5 dwg

FIELD: printing industry.

SUBSTANCE: carton box stock has a hologram, contains substrate material with inner surface and outer surface. Outer surface has coating with metal particles, and also from zero to one or more paint coating applied above part of metal surface and a coating that is substantially transparent and cured as exposed to radiation, applied above paint coating. At the same time the hologram is formed in a coating cured as exposed to radiation in area of exposed underlying metal coating as a cured coating to be cured as exposed to radiation. Proposed holographic image on package is provided exclusively by printing stage.

EFFECT: improved efficiency and speed of hologram formation, and also reduced cost of its production.

21 cl

FIELD: metallurgy.

SUBSTANCE: invention relates to field of mechanical treatment of sheet or roll or laminated material, particularly to methods and facilities of mechanical deformation without removing of the material, for instance for stamping, at implementation of claimed image embossing method, creating image of copied original (pictures, photographies) with transfer of halftones, on to strip or belt made of foil or laminated material with metallic external layer, image is embossed with usage of calender, allowing driving and at least one driven shafts, on working surface of one or on working surfaces of both shafts there are implemented projection lines, herewith at one shaft by means of engraving with removing of projection materials (by curved surface or planes) in the range of its height it is implemented embossed surface, shape and variable depth of which is defined according to copied image original additionally depth of embossed surface in places of projection materials removing, is located depending on transmission density of corresponding sections of copied image and is situated in the range of value, corresponding the location of projection foundation, up to the zero value, corresponding the location of projection vertex, with implementation on treated material of stamping variable depth, providing the effect of imitation of different levels of grey, corresponding to darker or lighter sections of original of copied image, with creation of image, similar to photography, differently ("negative" or "positive") interpreted depending on observation angle, and/or of kind, and/or of light source location. It is described also the other version of method, calenders for method implementation and stamped material, made of described methods with usage of declared calenders versions.

EFFECT: creation of method and calender, providing receiving on foil or metallise material of image like a photo, allowing high degree of protection against imitation.

FIELD: polygraphy.

SUBSTANCE: method includes applying a protective element in form of micro-perforation to each unit of polygraphic product. Protection element is made in form of thematic image, which is producing using a stamp with linear knives 75 micrometers thick to produce perforation in form of lines using linear micro-notching of sheet carrier within limits of contour of thematic image for visualization of this image made in form of mark micro-perforation when the sheet is illuminated.

EFFECT: increased degree of protection of sheet carrier from forgery.

1 dwg

FIELD: controlling elements for printed objects, in particular, securities and their analogs.

SUBSTANCE: control element contains first pattern, which is imprinted on first side of object and contains at least a first set of geometric shapes, and also second pattern, imprinted on second side of object. Second pattern is imprinted oppositely to first pattern with maintenance of register, while second pattern contains at least a second set of geometric shapes, matching first bitmap. At least one of series of geometric shapes contains portions positioned so, that in register of correct installation of two-sided printing register control element contains zones of varying density, browsed during show through and formed by given shifted portions.

EFFECT: increased level of protection of printed objects from forgery, with use of control element.

3 cl, 39 dwg

The invention relates to printing tools and equipment, and in particular to methods and means of die stamping and woodblock character set on the payment documents, goods receipts, accounts, etc

The invention relates to a material for painting, which prevents the emergence of random colored marks on other than designated surfaces

The invention relates to the design of the production line to get colourful printed products and is used for the manufacture of lottery tickets of various types

FIELD: controlling elements for printed objects, in particular, securities and their analogs.

SUBSTANCE: control element contains first pattern, which is imprinted on first side of object and contains at least a first set of geometric shapes, and also second pattern, imprinted on second side of object. Second pattern is imprinted oppositely to first pattern with maintenance of register, while second pattern contains at least a second set of geometric shapes, matching first bitmap. At least one of series of geometric shapes contains portions positioned so, that in register of correct installation of two-sided printing register control element contains zones of varying density, browsed during show through and formed by given shifted portions.

EFFECT: increased level of protection of printed objects from forgery, with use of control element.

3 cl, 39 dwg

FIELD: polygraphy.

SUBSTANCE: method includes applying a protective element in form of micro-perforation to each unit of polygraphic product. Protection element is made in form of thematic image, which is producing using a stamp with linear knives 75 micrometers thick to produce perforation in form of lines using linear micro-notching of sheet carrier within limits of contour of thematic image for visualization of this image made in form of mark micro-perforation when the sheet is illuminated.

EFFECT: increased degree of protection of sheet carrier from forgery.

1 dwg

FIELD: metallurgy.

SUBSTANCE: invention relates to field of mechanical treatment of sheet or roll or laminated material, particularly to methods and facilities of mechanical deformation without removing of the material, for instance for stamping, at implementation of claimed image embossing method, creating image of copied original (pictures, photographies) with transfer of halftones, on to strip or belt made of foil or laminated material with metallic external layer, image is embossed with usage of calender, allowing driving and at least one driven shafts, on working surface of one or on working surfaces of both shafts there are implemented projection lines, herewith at one shaft by means of engraving with removing of projection materials (by curved surface or planes) in the range of its height it is implemented embossed surface, shape and variable depth of which is defined according to copied image original additionally depth of embossed surface in places of projection materials removing, is located depending on transmission density of corresponding sections of copied image and is situated in the range of value, corresponding the location of projection foundation, up to the zero value, corresponding the location of projection vertex, with implementation on treated material of stamping variable depth, providing the effect of imitation of different levels of grey, corresponding to darker or lighter sections of original of copied image, with creation of image, similar to photography, differently ("negative" or "positive") interpreted depending on observation angle, and/or of kind, and/or of light source location. It is described also the other version of method, calenders for method implementation and stamped material, made of described methods with usage of declared calenders versions.

EFFECT: creation of method and calender, providing receiving on foil or metallise material of image like a photo, allowing high degree of protection against imitation.

FIELD: printing industry.

SUBSTANCE: carton box stock has a hologram, contains substrate material with inner surface and outer surface. Outer surface has coating with metal particles, and also from zero to one or more paint coating applied above part of metal surface and a coating that is substantially transparent and cured as exposed to radiation, applied above paint coating. At the same time the hologram is formed in a coating cured as exposed to radiation in area of exposed underlying metal coating as a cured coating to be cured as exposed to radiation. Proposed holographic image on package is provided exclusively by printing stage.

EFFECT: improved efficiency and speed of hologram formation, and also reduced cost of its production.

21 cl

FIELD: printing industry.

SUBSTANCE: data protection device comprises an optically variable diffraction structure coated with scratch layers, lying above the data to be protected. Besides, the device comprises at least the first and the second non-transparent metal layers separated with a flexible light-absorbing separation layer. Invention also relates to a scratch card, which comprises such a device.

EFFECT: group of inventions provides for development of such a data protection device, which guarantees high non-transparency, even when a scratch foil is weakened.

11 cl, 5 dwg

FIELD: textiles, paper.

SUBSTANCE: method comprises the local impregnation of paper sections of a certain shape with solution of compounds with epoxy groups in the presence of a curing agent. In accordance with the invention the compounds with epoxy groups are used as glycidyl esters of mono- and polyatomic alcohols with the dynamic viscosity at a temperature of 25C with not more than 150 mPas.

EFFECT: obtaining on paper of transparent sections without forming on the paper surface of solid films that prevent the subsequent sealing process.

7 cl, 8 ex

FIELD: printing.

SUBSTANCE: invention discloses a valuable document comprising a sheet-substrate, at least one side of which comprises at least on a part of its surface a transparent or translucent protective layer called "the first layer", with a matte visual aspect, at that this layer is partially covered with a second protective transparent or translucent layer having a glossy visual aspect. The document is a bank note and comprises a protective element which is a deformation of the said sheet, at that the protective element comprises two adjacent areas with different texture that imparts the said areas the matte aspect and the glossy aspect, respectively, in the mirror reflection, and the said second protective layer covers completely and is aligned with the said area with a glossy aspect.

EFFECT: increase in protection.

12 cl, 4 dwg

FIELD: printing.

SUBSTANCE: article includes a substrate and a graphical component forming an image and an optical component which includes magnetic pigment flakes aligned so as to form a frame pattern which surrounds image. When light is incident upon pigment flakes from a light source, light reflected from frame pattern forms a dynamic frame which surrounds image and appears to move as substrate is tilted with respect to light source.

EFFECT: image appears to be stationary when dynamic frame appears to move.

27 cl, 89 dwg

FIELD: manufacturing technology.

SUBSTANCE: invention relates to production of porous substrate with textured image comprising hidden colour images, by forming hydrophobic images on a hydrophilic surface, characterised by that in a porous substrate, structural channels are formed in form of an image, using hydrophobic solution for printing, which does not contain a dye, wherein coloured area is applied on back surface of porous substrate. Furthermore, present invention relates to said porous substrate with textured image and to a method of transforming said image into visible state.

EFFECT: disclosed is a method of producing porous substrate with textured image.

20 cl, 7 dwg

FIELD: chemistry.

SUBSTANCE: composition of the paint includes particles of optically variable pigment and thermally expandable spheres containing propellant. The pigment can be a thin-film interference, interference coated, cholesteric liquid crystal, or a mixture thereof. To produce tags for detecting adulteration, an optically variable paint is applied on a substrate by printing. The application can be carried out by screen printing, flexographic or rotational gravure. Adulteration of the tag on the substrate is detected by the irreversible colour change and/or the tag structure when exposed to a temperature of at least 35C. The product on which the optically variable paint is applied represent valuable documents: a stamp on the tax payment, an excise stamp; or valuable products: cosmetic, nutraceutical, pharmaceutical, alcoholic beverages, beverages or food, electrical/electronic products, fabrics, and jewellery.

EFFECT: ability to prove the adulteration by applying optically variable paint.

22 cl, 1 dwg, 2 tbl, 2 ex

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