Method for manufacturing of valuable paper securities protected from counterfeit, and valuable paper securities

FIELD: valuable paper securities and method for manufacturing of valuable paper securities protected from counterfeit.

SUBSTANCE: method involves introducing protective member formed as figured metallized polymeric thread onto net of netted cylinder of papermaking machine; dehydrating while forming face layer from pulp; pressing. Thread has central core and wing-shaped side members. During pressing, protrusion of thread wing ends above net surface onto paper surface, along at least one edge of figured thread by means of said members is provided, so that intermittent line is formed with constant or varying intervals between ends of thread wings.

EFFECT: enhanced protection of valuable paper securities from counterfeit.

6 cl, 13 dwg

 



 

Same patents:

FIELD: manufacture of counterfeit-protected valuable securities, in particular, banknotes and documents.

SUBSTANCE: apparatus has lengthwise movable tubular channel formed by set of pipes coaxially arranged in gap-free manner. Thickness h of middle pipe of channel is determined from inequality s<h<0.5 Hmin, where s is thickness of shielding tape to be charged; Hmin is minimum width of shielding tape to be charged. Upper part of middle pipe is provided with longitudinal cut defining shielding tape transportation channel having width comparable with maximum width of shielding tape to be charged. Inlet end of internal pipe is connected through locking valve to compressed air source, and its outlet end is provided with ejector having circular nozzle enclosed in outer pipe. Tip provided at end of external pipe has elastic tab oriented at an acute angle to axis of pipe and provided with tape discharge window positioned above tab base.

EFFECT: increased efficiency by preventing shielding tape from twist.

2 cl, 3 dwg

FIELD: production of counterfeit-protected valuable papers, in particular, banknotes and documents.

SUBSTANCE: method involves bending end of protective tape having length exceeding that of guiding tube by predetermined value through 180 deg; introducing formed loop into inlet opening of guiding tube channel and fixing tape loop branch opposite to tape end with the result that, without changing the initial orientation, pneumatically movable tape "unrolls" protective tape within guiding tube channel to lead out tape end beyond tube outlet opening, and protective tape, without changing its initial orientation, is fixed on rotating cylindrical grid of papermaking machine and embedded into fibrous structure of paper-pulp in the process of paper formation.

EFFECT: increased efficiency by preventing protective tape from twisting during charging and, accordingly, reduced paper production wastes.

1 dwg

FIELD: pulp-and-paper industry, in particular, paper including wide elongated impermeable member, and method for manufacture of such paper, and documents produced thereon.

SUBSTANCE: method involves the stages involving introducing elongated flexible impermeable member into contact with two groups of portions which are raised from substrate surface relative to adjacent zones. First group of raised portions have width transverse to feeding direction of machine which is smaller than width of elongated member, and second group of raised portions have width at least equal to width of elongated member. Method further involves depositing filaments onto substrate for producing of paper, with endes of elongated member resting upon second group of raised portions during manufacturing of paper. Method allows paper to be manufactured, said paper including wide impermeable protective member with isolated transparent or semi-transparent windows, said windows having strictly delimited edges and being uniformly defined.

EFFECT: increased extent of protection of documents produced from this paper.

12 cl, 6 dwg, 5 ex

FIELD: production of paper for banknotes, valuable documents etc.

SUBSTANCE: method involves steps of introducing elongated flexible impermeable member into contact with window forming means provided on movable supporting surface; placing filaments onto supporting surface for formation of fibrous base. Filaments are deposited so that upon placing of filaments onto supporting surface, elongated member is introduced into base to thereby form first set of windows on one surface of substrate the moment said member comes into contact with window forming means. Elongated member is partly opened within said windows. Elongated member has a plurality of wide regions divided by narrow portion, with width of wide regions preventing deposition of filaments in these wide regions and formation of second set of windows on opposite surface of base, wherein elongated member is also at least partly open. Narrow portions are such that they allow filaments deposited thereon to cover narrow portions of opposite surface of fibrous base at a distance from supporting surface. Described in Specification are base manufactured by said method, protected member manufactured from said base, and paper including elongated impermeable member open at both sides of base in variable or coinciding manner to prevent said paper from counterfeit.

EFFECT: improved quality of paper base and enhanced reliability in protecting from counterfeit.

19 cl, 7 dwg

FIELD: graphic arts industry, in particular, processes for manufacture of protected graphic product with protected member for controlling authenticity of said product.

SUBSTANCE: method involves applying polymeric film material thread having central part and edge zones onto net of netted cylinder of papermaking machine; providing dehydration during forming of paper pulp layer and pressing thereof; before applying of thread onto netted cylinder net, deforming at least one edge zone of thread. Protective member for controlling authenticity of protected graphic products and paper with protective member are manufactured according to said method.

EFFECT: improved workability of protective member during introducing it into paper pulp and simplified process for manufacture of protective member and paper.

15 cl, 5 dwg

FIELD: printing industry.

SUBSTANCE: member has strip having polymer film layer bearing at least one opaque layer of optical density greater than 1.5 having images and/or symbols and/or signs cut out and at least one semitransparent layer of optical density less than 1.5. The semitransparent layer has optical density varying in length and/or width according to a predefined rule to let optical density in opaque layer cuts vary.

EFFECT: enhanced effectiveness in protecting products against falsification.

14 cl, 2 dwg

FIELD: production of paper.

SUBSTANCE: surface element with a volumetric microstructure possessing an angular anisotropy of color and transparence, method for production of element for enhancing the quality contains the elements of microrelief with a coating from two sides differing in optical properties.

EFFECT: enhanced quality.

14 cl, 4 dwg

FIELD: special-purpose paper types.

SUBSTANCE: device has light guide manufactured from optically transparent polymers as ribbon.

EFFECT: high protection quality.

18 cl, 3 dwg

FIELD: printing engineering.

SUBSTANCE: device has ribbon manufactured from porous water-permeable material and having protection zones of various geometric forms.

EFFECT: high reliability of paper protection.

9 cl, 7 dwg

The invention relates to modified chemical fibres used in the production business, documentary and securities are protected against forgery, in particular, to a colored chemical fibers

FIELD: production of paper for banknotes, securities, identity certificates or other protected printed products.

SUBSTANCE: grid has filigree members fixed on grid and designed for local reducing of paper water loss for producing of filigree watermark on paper. Filigree members are made in the form of various figures, patterns, or text produced by shaped cutting from sheet material. There are through apertures and/or slots provided in body of filigree member, said apertures having cross size below 500 micron and being designed for creating zones with higher water loss. Method involves forming paper web on grid of round grid-type papermaking machine; dehydrating during pressing of paper web; forming paper on grid in order to produce filigree watermark having additional picture provided on the background of filigree watermark and having higher optical density as compared to optical density of filigree watermark.

EFFECT: increased degree of protecting paper from forgery.

4 cl, 3 dwg

FIELD: production of paper for banknotes, securities, identity certificates or other protected printed products.

SUBSTANCE: grid has filigree members fixed on grid and designed for local reducing of paper water loss for producing of filigree watermark on paper. Filigree members are made in the form of various figures, patterns, or text produced by shaped cutting from sheet material. There are through apertures and/or slots provided in body of filigree member, said apertures having cross size below 500 micron and being designed for creating zones with higher water loss. Method involves forming paper web on grid of round grid-type papermaking machine; dehydrating during pressing of paper web; forming paper on grid in order to produce filigree watermark having additional picture provided on the background of filigree watermark and having higher optical density as compared to optical density of filigree watermark.

EFFECT: increased degree of protecting paper from forgery.

4 cl, 3 dwg

FIELD: pulp-and-paper industry.

SUBSTANCE: invention relates to manufacture of cellulose from vegetable cellulose-containing raw material and can be used to manufacture cellulose from linen material, designed for chemical processing as well as for manufacturing cotton wool and paper. Cellulose-containing material is simultaneously loosened and cleaned and then subjected to alkali pulping and bleaching in solution containing NaOH, H2O2, and surfactant. After that, material is washed with water in two steps at water duty 1:(5-20), squeezed, and dried. According to this invention, before the washing step, material is acidified with nitric acid solution at 75-95°C for 1-2 h and, before drying, ground.

EFFECT: simplified process and improved environmental safety.

3 cl, 3 ex

FIELD: pulp-and-paper industry.

SUBSTANCE: invention relates to manufacture of cellulose from vegetable cellulose-containing raw material and can be used to manufacture cellulose from linen material, designed for chemical processing as well as for manufacturing cotton wool and paper. Cellulose-containing material is first loosened, then soaked in aqueous solution containing alkali, hydrogen peroxide, and surfactant. After that, material is pulped and simultaneously bleached, then washed with softened water in two steps at water duty 1:(5-20), squeezed to moisture content 60-80%, and dried. According to this invention, before the washing step, material is acidified with nitric acid solution and, before drying, ground.

EFFECT: improved economical efficiency of manufacturing cellulose suitable for chemical processing due to use of out-autoclave low-temperature alkali pulping and improved environmental safety of process.

3 cl, 3 ex

FIELD: processes and equipment for forming of foamed materials.

SUBSTANCE: method involves introducing foam suspension containing fibers from delivery box of commercial plant into web forming section; mixing at least one solid material with foam in delivery box by introducing therein of foam under high pressure through nozzles.

EFFECT: reduced maintenance costs, decreased power consumption, and provision for preventing of tender fibers from breakage and damage.

68 cl, 14 dwg

FIELD: manufacture of woven belt-type devices, such as endless sieve belt for papermaking and press-pate machines.

SUBSTANCE: woven belt-type device has connection part 7a', 7b' provided on at least one end of woven belt 20', 20" which may be connected through detachable connection means 9 to other connection part 7b', 7a' of the same or other woven belt. Certain number of predetermined longitudinal threads 2', 2" are extracted from web 20' along belt cut 4', 4" corresponding to respective end of woven belt. Cuts 4', 4" of longitudinal threads 2', 2" extracted from at least one side of woven belt 20', 20" adjoin to zone immediately before connection part 7a', 7b' so as to define support 10', 10" for protecting connection parts 7a', 7b' during movement of woven belt over working surface. Extracted cuts 4' of longitudinal threads 2' are unwoven around transverse threads 11', 12' and are inserted back into belt.

EFFECT: increased strength of belt owing to reliable protection of connection part.

24 cl, 3 dwg

FIELD: pulp-and-paper industry, in particular, method for manufacture of paper with thread-marks, stencil and system for effectuating said method, netted web manufactured with the use of said equipment, and method for manufacture of high-grade paper or issue paper using netted web.

SUBSTANCE: netted web for papermaking machine has relief for creating of multiple-stepped thread-mark. Portions of said relief, preferably protruding portions, are embedded into filler compound or filler, with shape of netted web portion to be filled with said compound corresponding to thread-mark to be created. For applying of filler compound or filler onto individual precise portions of netted web and/or for hardening thereof only on predetermined portions of netted web, stencil is used having surface with relief structure which conforms in type of negative relief with embossed relief of netted web of papermaking machine.

EFFECT: precise positioning of means used for forming of thread-marks on relief portions of netted web, provision for withstanding of increased loading, simplified method for manufacture of said means and reduced production costs.

21 cl, 5 dwg

FIELD: pulp-and-paper industry, in particular, equipment for papermaking machine.

SUBSTANCE: belt for papermaking machine has end edges 6, 7 extending transverse to direction of movement and thread lap 2, 4 with longitudinal threads 3 extending in direction of movement and transverse threads 5 extending in direction transverse to direction of movement, and connection device 8 adapted for connecting of end edges 6, 7. Connection device 8 has connection members 9, 10 provided at both end edges 6, 7 and engageable with thread lap 2, 4. Connection members 9, 10 rest with their sides opposite to end edges 6, 7 upon transverse threads 5. Method allows joint to be created for connecting end edges of belt of papermaking machine.

EFFECT: increased efficiency in formation of joint capable of receiving and transmitting increased longitudinal force in papermaking machine belt.

34 cl, 20 dwg

FIELD: production of paper for banknotes, valuable documents etc.

SUBSTANCE: method involves steps of introducing elongated flexible impermeable member into contact with window forming means provided on movable supporting surface; placing filaments onto supporting surface for formation of fibrous base. Filaments are deposited so that upon placing of filaments onto supporting surface, elongated member is introduced into base to thereby form first set of windows on one surface of substrate the moment said member comes into contact with window forming means. Elongated member is partly opened within said windows. Elongated member has a plurality of wide regions divided by narrow portion, with width of wide regions preventing deposition of filaments in these wide regions and formation of second set of windows on opposite surface of base, wherein elongated member is also at least partly open. Narrow portions are such that they allow filaments deposited thereon to cover narrow portions of opposite surface of fibrous base at a distance from supporting surface. Described in Specification are base manufactured by said method, protected member manufactured from said base, and paper including elongated impermeable member open at both sides of base in variable or coinciding manner to prevent said paper from counterfeit.

EFFECT: improved quality of paper base and enhanced reliability in protecting from counterfeit.

19 cl, 7 dwg

Acceleration roll // 2295599

FIELD: pulp-and-paper industry, in particular, cloth shifting technique.

SUBSTANCE: acceleration roll has cloth guiding shaft mounted within bearings positioned at its both sides, said shaft being driven for rotation by means of cloth, and straightening mechanism comprising string positioned on shaft surface. One end of string is immovably fixed on shaft through spring and other end is movably fixed so that string may be shifted around shaft axis.

EFFECT: simplified construction.

1 dwg

FIELD: chemical industry; printing industry; other industries; methods of production of the composition of the paint including the optically changeable pigments.

SUBSTANCE: the invention may be used in production of the optically changeable pigments. The optically changeable pigment includes the stratified set composed of the different materials, in which, at least, one of the layers represents the reflecting layer and, at least, one of the other layers represents the dielectric layer. At least, one of the surfaces of the indicated layers is subjected to the chemical action. The indicated materials also include, at least, one of the layers, which represents the semitransparent metallic layer made out of chromium and also one or more metals and-or their inorganic compounds. At that the metal and-or its inorganic compound are subject to corrosion. The subjected to the chemical action surface of the reflecting and dielectric layer along the edge of the layering block of the edge structure of the pigment is coated with the passivating agent, which is selected from the group consisting of the organic esters and the fluorinated organic esters of the phosphoric acid, having the following structural formula: (Rf-CH2-CH2-O)xP(O)(OH)y, where Rf=F-(CF2-CF2)z, х=1 or 2, у=2 or 1, х+у=3, z=l-7. The composition of the printing paint includes the binding system, water and the optically changeable pigment. The invention allows to diminish oxidation of the metallic layers and dissolution of the dielectric layers of the optically changeable pigment and to use it in the compositions of the printing paint.

EFFECT: the invention allows to diminish oxidation of the metallic layers and dissolution of the dielectric layers of the optically changeable pigment and to use it in the compositions of the printing paint.

22 cl, 7 ex

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