SI8812153A

SI8812153A - Security device inside paper

Info

Publication number: SI8812153A
Application number: SI8812153A
Authority: SI
Inventors: Raymond Joseph Melling; Malcolm Robert Knight
Original assignee: Portals Ltd
Priority date: 1988-11-23
Filing date: 1988-11-23
Publication date: 1997-04-30
Also published as: SI8812153B

Abstract

Izum se nanaša na varnostno napravo v papirju, obsegajočo nit (3), ki je zasnovana iz prosojnega brezbarvnega plastičnega filma (1), na katerem je deloma razporejen kovinski sloj (2), in ki je na vsaj eni strani zvezno oplaščen s slojem (5), ki vsebuje vsaj enobarvno barvilo ali fluorescenčni material. Film (1) je na svoji drugi strani lahko oplaščen z nadaljnjim slojem (6) enobarvnega barvila. Barvna sloja (5,6) sta lahko tudi večbarvna, sloj (5) pa celo integralen s filmom (1). Nit (3) je lahko razporejena znotraj vodnega znaka papirja (4) ali vsaj enega okna (9).The invention relates to a security device in paper, comprising a thread (3) formed from a transparent thread colorless plastic film (1) on which partly spaced metal layer (2), and which is at least one sides lined with a layer (5) containing at least monochrome dye or fluorescent material. Movie (1) it may, on the other hand, be lined with further layer (6) of monochrome dye. The color layers (5,6) are it can also be multi-colored, and the layer (5) is even integral with film (1). The thread (3) can be arranged inside watermark of paper (4) or at least one window (9).

Description

PORTALS LIMITEDPORTALS LIMITED

Varnostna naprava v papirjuPaper security device

PODROČJE TEHNIKETECHNICAL FIELD

Izum sodi na področje papirne industrije, konkretneje kartona in papirja, povsem konkretno pa na področje specialnih papirjev, prednostno varnostnega papirja.The invention falls within the field of the paper industry, more specifically cardboard and paper, and more specifically, the field of specialty papers, preferably security paper.

V MPK je predmet izuma uvrščen v razred D 21 H 5/10.In the MPK, the subject matter of the invention is classified in class D 21 H 5/10.

TEHNIČNI PROBLEMTECHNICAL PROBLEM

Izhajajoč iz varnostne naprave v papirju, obsegajoče fleksibilno vodo-neprepustno podlago s plastjo kovine na vsaj eni strani, pri čemer je na eni strani naprave predviden zvezen potek kovinskega nanosa vzdolž njene dolžine, in pri čemer je varnostna naprava vsaj delno razporejena med plastema papirja, obsegajočega nasprotni površini za omogočanje tiska za identifikacijo dokumenta, izdelanega iz omenjenega papirja, je predmet izuma zasnovan na problemu, kako izboljšati zaznavanje in prepoznavanje varnostne naprave z namenom javnega ugotavljanja avtentičnosti.Starting from a security device in paper, comprising a flexible water-impermeable substrate with a layer of metal on at least one side, provided on one side of the device a continuous path of metal deposition along its length, and wherein the security device is at least partially distributed between the layers of paper, The object of the invention is based on the problem of how to improve the detection and recognition of a security device for the purpose of public authentication.

STANJE TEHNIKEBACKGROUND OF THE INVENTION

Znano je, da se pri bankovcih uporablja varnostne naprave, zasnovane kot trakovi ali nitke, ki so izdelani iz prosojnega filma, opremljenega z nepretrgano plastjo odsevne kovine, pri čemer je najbolj pogost primer vakuumsko nanešen aluminij na poliestru. Bankovci, izdelani iz tovrstnega papirja, so v obtoku že vrsto let v mnogih državah. Glavna značilnost tovrstnih niti je v tem, da so nameščene v varnostnem papirju, le-ta pa se zatem potiska, da se dobi varnostni dokument-bankovec, pri čemer se niti ne da zlahka opaziti pri odsevani svetlobi, takoj pa je vidna, kadar se dokument pogleda pri propustni svetlobi, kajti varnostna nit daje temno senco. Tovrstne dobro uporabljene varnostne niti so enostavne v zasnovi, toda naprava je izjemno učinkovita, kajti optično spremenljivega učinka, ki ga pri tem dobimo, se ne da natančno simulirati, npr. s tiskanjem črte na papir. Nepretrgana in razširjena uporaba tovrstne varnostne značilnosti vrsto let po svoji prvi predstavitvi je močan pokazatelj njene učinkovitosti.Banknotes are known to use security devices designed as tapes or filaments made of a translucent film equipped with a continuous layer of reflective metal, the most common example being vacuum-applied aluminum on polyester. Banknotes made from this type of paper have been in circulation in many countries for many years. The main feature of such threads is that they are placed in security paper, which is then pushed to obtain a security document, not easily visible in reflected light, and is immediately visible when the document looks at the transmitted light because the security thread gives a dark shadow. Such well-used safety threads are easy to design, but the device is extremely efficient, because the optically variable effect obtained here cannot be accurately simulated, e.g. by printing a line on paper. The continued and widespread use of such a safety feature for many years after its first presentation is a strong indicator of its effectiveness.

Mnogo svetovnih vrednotnic ima vgrajeno mikrotiskano nit, ki obsega fino tiskane znake, toda ti so v glavnem premajhni, da bi se v tiskanem dokumentu prepoznali tudi z bolnim očesom.Many world-class securities have a built-in microprinting thread that contains fine print characters, but these are generally too small to identify with a sore eye in a printed document.

Znano je, da se metalizirane filme lahko izdeluje tako, da kovina ni prisotna v kontroliranih in točno določenih območjih. Tak delno metaliziran film se lahko izdela na več načinov. En način je, da se selektivno demetalizira območja z uporabo zaščitne plasti in jedkalne tehnike, kot je opisano v ameriškem patentu št. 465 2015. Za doseganje podobnih učinkov so znani tudi drugi postopki; možno je npr. vakuumsko nalagati aluminij preko maske, aluminij pa se lahko selektivno odstrani s sestavljenega traku iz plastične osnove in aluminija z uporabo ekscimerskega laserja.It is known that metallized films can be made in such a way that the metal is not present in controlled and well-defined areas. Such a partially metallized film can be produced in many ways. One way is to selectively demetalize areas using a protective layer and etching technique, as described in U.S. Pat. 465 2015. Other procedures are known to achieve similar effects; it is possible e.g. vacuum aluminum is applied over the mask, and aluminum can be selectively removed from the composite strip of plastic base and aluminum using an excimer laser.

Bankovec ali podobno, ki se ga izdeluje po poprej omenjenem ameriškem patentu, se da simulirati s tiskarsko tehniko, ki uporablja npr. neprosojno belo ali krem tinto na eni površini papirja; tovrstna simulacija je lahko nepopolna, toda izkušnje so pokazale, daje več kot ustrezna za goljufanje javnosti. Optično spremenljivi učinek kovinskih znakov, uporabljenih na nitkah po ameriškem patentu št. 465 2015, se ne da natančno simulirati, vendar, ker znaki zasedajo le manjši del področja nitke, se lahko kakršnekoli pomanjkljivosti v simulaciji hitro spregleda.A banknote or similar made according to the aforementioned US patent may be simulated by a printing technique using e.g. opaque white or cream ink on one surface of the paper; This kind of simulation may be incomplete, but experience has shown that it is more than adequate for cheating the public. Optically variable effect of metal signs used on filaments according to U.S. Pat. 465 2015, cannot be accurately simulated, but since the characters occupy only a small part of the thread area, any shortcomings in the simulation can be quickly overlooked.

OPIS REŠITVE TEHNIČNEGA PROBLEMA S PRIMERI IZVEDBEDESCRIPTION OF THE TECHNICAL PROBLEM SOLUTION WITH EXAMPLES

Rešitev zastavljenega tehničnega problema se lahko doseže z vgradnjo vzorca znotraj varnostne naprave, ki ga javnost hitro prepozna, pri čemer obdrži širše sprejet optični spremenljiv učinek, ki se ga doseže z nepretrganim metaliziranim trakom. Če so tiskani znaki veliki, so zelo jasni, kadar se jih gleda z odsevano svetlobo, ponarejevalec pa ga lahko hitro simulira. Predloženi izum uporablja dovolj velik vzorec znakov, tako da se jih hitro zazna z golim očesom in so tvorjeni z delnim metaliziranim trakom tako, da se v bistvu obdrži močan optično spremenljivi učinek nepretrganega metaliziranega traku.The solution to the technical problem posed can be achieved by incorporating a pattern within a security device that is quickly recognized by the public, while retaining the widely accepted optically variable effect achieved by a continuous metallic strip. If the printed characters are large, they are very clear when viewed with reflected light and can be quickly simulated by the counterfeiter. The present invention employs a sufficiently large sample of characters so that they can be readily detected by the naked eye and are formed by a partially metallized strip such that substantially the strong optically variable effect of a continuous metallized strip is maintained.

Po predloženem izumu se predlaga varnostno napravo na papirju, obsegajočo fleksibilno vodo-neprepustno podlago s plastjo kovine na vsaj eni strani, pri čemer je na eni strani naprave predviden zvezen potek kovinskega nanosa vzdolž njene dolžine, in pri čemer je varnostna naprava vsaj delno razporejena med ploskvama papirja, obsegajočega nasprotni površini za pripravo tiska za identifikacijo dokumenta, izdelanega iz omenjenega papirja, pri čemer obsega omenjena naprava brezkovinske odseke med 10 in 50% področja naprave, omenjeni brezkovinski odseki vzdolž dolžine naprave pa so opremljeni s ponavljajočim se vzorcem, modelom, indikatorjem ali podobno z vsaj nekaj brezkovinskimi deli v prečni smeri naprave, ki so popolnoma obkroženi s kovino. Razume se, da brezkovinsko področje 10 do 50% zahteva pokrivanje s kovino od 90 do 50%, pri čemer je pokrivanje s kovino prednostno na eni strani varnostne naprave, lahko pa je prisotno na katerikoli strani z ali brez prekrivanja.According to the present invention it is proposed to provide a security device on paper comprising a flexible water-impermeable substrate with a layer of metal on at least one side, provided on one side of the device a continuous path of metal deposition along its length, and wherein the security device is at least partially arranged between sheets of paper comprising a counter-print surface for identifying a document made from said paper, wherein said device comprises metal-free sections between 10 and 50% of the area of the apparatus, said metal-free sections along the length of the apparatus provided with a repeating pattern, model, indicator or similar to at least a few non-metal parts in the transverse direction of the device completely surrounded by metal. It is understood that a non-metallic region of 10 to 50% requires metal coverage of 90 to 50%, with metal coverage being preferably on one side of the security device but may be present on either side with or without overlap.

Brezkovinski del prednostno obsega jezikovne znake, kot npr. črke angleške abecede; alternativno se lahko uporabi široko področje vzorcev ali modelov, ki vedno zagotavljajo, da ima naprava vsaj en nepretrgan kovinski potek. Slednji je lahko na enem ali obeh robovih naprave, lahko pa je razporejen znotraj robov ali pa se spreminja vzdolž dolžine naprave od roba do vmesne lokacije. Naprava ima lahko vzporedni stranici, ena ali obe stranici pa imata lahko pravilno ali nepravilno nelinearno konfiguracijo. Naprava je lahko iz plastične podlage z delnim prekritjem iz kovine na eni njenih strani. Nadalje, čeprav ne prednostno, ima lahko naprava kovino na obeh straneh plastične podlage, nemetalizirana področja pa se lahko prekrivajo, da se zagotovi ustrezno dimenzionirano brezkovinsko področje.The non-metal part preferably comprises language characters, such as e.g. letters of the English alphabet; alternatively, a wide range of patterns or models can be used to always ensure that the device has at least one continuous metal path. The latter may be at one or both edges of the device, or may be arranged within the edges or vary along the length of the device from the edge to the intermediate location. The device may have parallel sides, and one or both sides may have a correct or incorrect non-linear configuration. The device may be made of plastic substrate with partial metal cover on one side. Further, though not preferred, the device may have metal on both sides of the plastic substrate, and nonmetallized areas may overlap to provide a properly dimensioned non-metallic area.

Prednostno obsega kovinsko prekritje od 55% ali 60% do 90%, bolj prednostno pa od 60% do 85% območja naprave. V določenih želenih izvedbenih primerih izuma je naprava nameščena znotraj vodnega znaka, ali pa je izpostavljena tako, daje nameščena znotraj okna ali odprtine papirja, kjer papirna vlakna niso prisotna na napravi.Preferably, the metal coverage is from 55% or 60% to 90%, more preferably from 60% to 85% of the area of the device. In certain preferred embodiments of the invention, the device is located within the watermark, or is exposed to be positioned inside a window or aperture of paper where the paper fibers are not present on the device.

Po enem od izvedbenih primerov izuma je bodisi na eni ali obeh straneh varnostne naprave prisotno barvilo ali fluorescenčni material, ki je lahko enak ali pa različen, kadar je barvilo ali fluorescenčni material prisoten na obeh straneh traku ali niti. Razume se, da izraz barvilo sega do barvilnih materialov na splošno in vsebuje pigmente, ki obarvajo preneŠeno ali odbito svetlobo. Prav tako pa izraz fluorescenčni material sega do drugih materialov, ki, kadar so vzbujani s primernim sevanjem, oddajajo značilno sevanje; izraz vsebuje npr. fosforescenčne materiale in druge materiale, ki oddajajo značilno sevanje, kadar so vzbujani s sevanjem, drugačnim kot ultravijolično svetlobo. V nadaljnjem izvedbenem primeru po izumu obsega naprava plastično podlago s kovino na eni strani, barvilo ali fluorescenčni material pa je prisoten v plastični podlagi ali na površini omenjene podlage. Naprava lahko prav tako obsega plastično podlago s kovino na eni strani, barvilo ali fluorescenčni material pa je prisoten v nanosu na površini kovine. Barvilo ali fluorescenčni material ni nujno prisoten zvezno na eni strani varnostne naprave, čeprav je zaželena zvezna plast. Naprava lahko nadalje obsega plastično podlago s kovino na eni strani in dvobarvno plastjo, ki je prisotna na vsaj eni strani naprave.According to one embodiment of the invention, either a dye or a fluorescent material may be present on one or both sides of the security device, which may be the same or different when the dye or fluorescent material is present on either side of the strip or thread. It is understood that the term dye extends to coloring materials in general and contains pigments that color transmitted or reflected light. Likewise, the term fluorescent material extends to other materials which, when excited by appropriate radiation, emit typical radiation; the term contains e.g. phosphorescent materials and other materials which emit characteristic radiation when excited by radiation other than ultraviolet light. In a further embodiment of the invention, the device comprises a plastic substrate with metal on one side, and a dye or fluorescent material is present in the plastic substrate or on the surface of said substrate. The device may also comprise a plastic substrate with metal on one side, and a dye or fluorescent material is present in the coating on the metal surface. The dye or fluorescent material is not necessarily present continuously on one side of the security device, although a continuous layer is desirable. The device may further comprise a plastic base with metal on one side and a two-colored layer present on at least one side of the device.

Pomembna značilnost predloženega izuma je v tem, da ponarejevalec ni sposoben simulirati učinka nepretrganega metaliziranega dela ali dela naprave, ki se ga uporablja po tem izumu, le z enostavno risano ali tiskano črto. Da bi se ponarejalo varnostni papir, je potrebno izkušeno tiskanje, toda nikakršno tiskanje ne more ustrezno simulirati kontrast, ki se ga dobi, ko se dokument, narejen po tem izumu, preizkusi s prenešeno in odsevano svetlobo, kadar se označeni kontrast doseže s pravim dokumentom.An important feature of the present invention is that the forger is not capable of simulating the effect of a continuous metallized part or a portion of the device used according to the invention with only a simple line or a printed line. Forged security paper requires experienced printing, but no printing can adequately simulate the contrast obtained when a document made according to this invention is tested with transmitted and reflected light when the marked contrast is achieved with the right document .

Varnostna naprava po predloženem izumu je daleč najbolj primerna za preprečevanje ponarejanja in za preskrbovanje javnosti s hitro verificiranim varnostnim dokumentom, kajti naprava po predloženem izumu obdrži široko prepoznaven in zelo močan optično spremenljiv učinek nepretrgoma metaliziranega filma ob dejstvu, da je glavni del področja naprave metaliziran in daje kovina zvezo nanešena vzdolž dolžine le-te.The security device of the present invention is by far the most suitable for preventing counterfeiting and for providing the public with a quickly verified security document, since the device of the present invention retains the widely recognized and very strong optically variable effect of a continuously metallized film, given that the main part of the device's area is metallized and the metal is bonded along its length.

Nadalje se razume, da zveznost kovine vzdolž naprave po tem izumu znatno poveča sposobnost prepoznavanja bankovca ali drugega varnostnega dokumenta na napravah za sortiranje uporabljenih bankovcev.It is further understood that the continuity of the metal along the apparatus of the present invention significantly increases the ability to identify a banknote or other security document on the sorting machines of the used banknotes.

Razume se, da uporaba legend, znakov, geometrijskih vzorcev ipd. močno poveča varnost naprave, kdar se uporablja v oknasti ali odprti obliki. Okna se lahko izdela na znan a drugačen način od tistega, opisanega v specifikaciji EP 0059056. Alternativna tehnika je vležiščenje varnostne naprave med dve plasti vlaken, ki se ločeno tvorita na papirnem stroju in zatem dovajata skupaj, da se tvori enojni list, pri čemer vsaj eno od vlaken obsega niz lukenj, ki so izdelane z vodnim znakom ali drugim postopkom tako, da so te luknje (ki ne vsebujejo ali v bistvu ne vsebujejo vlaken) vsaj delno nameščene preko naprave, s čimer jo izpostavljajo. Če se luknje nahajajo le v eni plasti vlakna, bo varnostna naprava izpostavljena ali nameščena v oknu le na eni površini končnega lista. Če so luknje prisotne v obeh vlaknastih plasteh toda na različnih lokacijah, bo naprava izpostavljena ali postavljena v okno na obeh straneh končnega lista v različnih lokacijah. Če so luknje prisotne v obeh vlaknastih plasteh tako, da se vsaj deloma skladajo druga z drugo in napravo, je slednja hkrati izpostavljena na obeh straneh lista, da tvori odprtino.It is understood that the use of legends, signs, geometric patterns, etc. greatly enhances the security of the device when used in a windowed or open form. The windows may be made in a manner known in a manner different from that described in specification EP 0059056. An alternative technique is to attach a safety device between two layers of fibers, which are separately formed on a paper machine and then fed together to form a single sheet, with at least one of the fibers comprises a series of holes made by a watermark or other process such that those holes (which do not or do not substantially contain fibers) are at least partially located over the device, thereby exposing it. If the holes are located in only one layer of the fiber, then the safety device will be exposed or positioned in the window on only one surface of the end sheet. If holes are present in both fibrous layers but in different locations, the device will be exposed or placed in a window on either side of the end sheet in different locations. If holes are present in both fibrous layers so that they are at least partially aligned with each other and the device, the holes are simultaneously exposed on both sides of the sheet to form an opening.

Ena od najbolj pomembnih prednosti uporabe delno metaliziranih naprav, kadar je del le-teh izpostavljen, je v preprečevanju ponarejanja, kadar se ponaredki proizvajajo z uporabo barvnih fotokopirnih naprav ali žarkovnih tipalnikov.One of the most important advantages of using partially metallized devices when exposed to part of them is to prevent counterfeiting when counterfeits are manufactured using color photocopiers or beam sensors.

Bankovci in drugi varnostni dokumenti, izdelani’ iz varnostnega papirja obsegajo varnostno napravo, ki se jo v bistvu ne da odkriti pri odbiti svetlobi, toda ki, ko se papir pregleduje s prenešeno svetlobo brez pomoči leč ali drugega opazovalnega pripomočka, izkazuje kot močno odsevanje vzorec, obliko ali znak proti kovinskemu ozadju, ki je temnejše kakor papir v sosedščini naprave; tudi osvetljena področja, ki obsegajo vzorec, obliko, znak ali podobno, so lahko svetlejša kakor papir, ki je v sosedščini naprave; npr. kjer je sorazmerno širok trak vdelan v papir med nalaganjem vlaken.Banknotes and other security documents produced from 'security paper' include a security device that is essentially undetectable in reflected light, but which, when examined with transmitted light without the aid of lenses or other observing aids, shows a strong reflecting pattern , a shape or sign against a metal background that is darker than the paper in the machine's neighborhood; Also, illuminated areas that include a pattern, shape, sign, or the like may be brighter than paper adjacent to the machine; e.g. where a relatively wide strip is embedded in the paper during fiber loading.

Kadar se v plasti uporablja barvilo na eni strani varnostne naprave ali je en od teh posrednikov nameščen v plastični osnovi za kovino, takrat se osvetljena področja obarvajo kadar se jih osvetli s prenešeno svetlobo, barva pa je lahko bistveno drugačna od barve papirja, ki je v sosedščini naprave. Podobne učinke se lahko doseže, če dodatna plast obsega fluorescenčni material, osvetljevanje pa se doseže s prenešeno UV ali IR svetlobo ali drugim stimulativnim sevanjem; nadaljnje preverjanje avtentičnosti se lahko doseže na ustreznem varnostnem papirju z opazovanjem v prenešeni beli svetlobi in s primerjavo sence s tisto, ki jo dobimo pri opazovanju s prenešenim stimulacijskim sevanjem.When a dye is used in the layer on one side of a security device or one of these agents is mounted in a plastic base for metal, then the illuminated areas are colored when illuminated by transmitted light and the color may be substantially different from the color of the paper in neighborhood device. Similar effects can be achieved if the additional layer comprises fluorescent material and the illumination is achieved by transmitted UV or IR light or other stimulating radiation; further authentication can be achieved on the relevant security paper by observing in the transmitted white light and by comparing the shade with that obtained when observing the transmitted stimulus radiation.

Varnostni dokument, izdelan iz varnostnega papirja in naprave po tem izumu, je lahko izdelan iz dveh ali več varnostnih naprav opisanih v prijavi, varnostne naprave pa so lahko enake ali različne.A security document made from security paper and the apparatus of the present invention may be made from two or more security devices described in the application, and security devices may be the same or different.

V eni od prednostnih izvedbenih oblik po izumu so nemetalizirana območja, se pravi vzorec, oblika, znak, ali podobno, individualno popolnoma obkroženi s kovino, pri čemer je kovina prisotna vzdolž robov naprave. Slednja je nadalje zasnovana iz čistega plastičnega filma, ki je deloma metaliziran le na eni strani, zvezna kovinska plast pa sega med drugim vzdolž dveh robov plastične naprave vzporedno k vzdolžni osi slednje.In one of the preferred embodiments of the invention are nonmetallized areas, i.e., pattern, shape, sign, or the like, individually completely surrounded by metal, with the metal present along the edges of the device. The latter is further formed from a pure plastic film partially metallized on one side only, and the continuous metal layer extends, inter alia, along two edges of the plastic device parallel to the longitudinal axis of the latter.

Varnostna naprava ima zvezno širino ali pa se po širini spreminja, kot je to primer pri določenih znanih varnostnih nitih. Za niti enake širine lahko leži širina niti prednostno v območju od 0,5 mm do 2,0 mm, z znakom ali indikatorjem višine (se pravi dimenzijo prečno na širino niti) v območju od 0,3 mm do 1,5 mm. Vseeno pa se lahko uporablja širše naprave, kar je odvisno od postopka, ki se ga uporablja za vgradnjo naprave v varnostni papir. Naprave so lahko izdelane iz prosojnega brezbarvnega plastičnega filma z delno demetalizacijo, s katero se doseže vzorec, obliko, znak ali podobno, ta film pa se zatem razreže, da se dobi trakove ali niti ustrezne širine, npr. 1,2 mm.The security device has a continuous width or varies in width, as is the case with certain known security threads. For threads of equal width, the width of the threads may preferably be in the range of 0.5 mm to 2.0 mm, with a sign or height indicator (i.e. dimension transversely to the width of the thread) in the range of 0.3 mm to 1.5 mm. However, wider devices may be used, depending on the procedure used to install the device in security paper. The devices may be made of a translucent, colorless plastic film with partial demetallization to achieve a pattern, shape, sign or the like, and this film is then cut to obtain strips or threads of appropriate width, e.g. 1,2 mm.

Nadaljnje spremenljive vidne učinke se po tem izumu lahko doseže, če sta ena ali obe strani deloma metalizirane naprave opremljeni pred vstavljanjem v papir z zveznim nanosom dvobarvnega filma; zaznavanje barve metaliziranih in osvetljenih področij se zatem spremeni s kotom opazovanja in/ali glede na smer osvetljevanja. Vizualni učinki z dvobarvnim trakom ali nitjo se izboljšajo, če je dvobarvni material nameščen pod okno, ki je v papirju zasnovano tako, da je izpostavljen dvobarvni nanos varnostne naprave.Further variable visible effects according to the present invention can be achieved if one or both sides of the partially metallized device are equipped before being fed into paper with a continuous application of a two-color film; the color perception of metallized and illuminated areas is then changed by the angle of observation and / or by the direction of illumination. Visual effects with a two-color tape or thread are enhanced if the two-color material is placed under a window that is designed in paper to be exposed to the two-color application of the security device.

Bankovec ali drug varnostni dokument, izdelan iz varnostnega papirja in varnostne naprave po predloženem izumu, obsega trak ali nit, ki zagotavlja električno prevodno pot, ki sega vzdolž dolžine ali širine papirja; tak trak ali nit se zatem lahko odkrije z uporabo običajne opreme za odkrivanje kovinske niti npr. naprave za sortiranje uporabljenih bankovcev. Lastnost niti ali trakov po tem izumu, da se jih da odkriti z običajno opremo za odkrivanje kovinskih niti, je cenjena lastnost, ki ni prisotna v primeru bankovcev ali drugih varnostnih dokumentov, izdelanih po ameriškem patentu št. 465 2015. Nadalje se z uporabo primernega detektorja lahko določi porazdelitev kovine znotraj traku ali niti z električnim, optičnim ali drugim sredstvom, in primerja z referenčnim vzorcem, da se zagotovi nadaljnjo tehniko za ugotavljanje verodostojnosti osnovnega dokumenta, ki vsebuje trak ali nit.A note or other security document made from security paper and security device according to the present invention comprises a tape or thread that provides an electrical conductive path that extends along the length or width of the paper; such tape or thread can then be detected using conventional metal thread detection equipment e.g. apparatus for sorting used banknotes. The property of threads or tapes of the present invention to be detected by conventional metal thread detection equipment is a valued feature not present in the case of banknotes or other security documents produced under U.S. Pat. 465 2015. Furthermore, using a suitable detector, the distribution of the metal within the tape or thread by electrical, optical, or other means can be determined and compared with the reference sample to provide further technique for determining the authenticity of the basic document containing the tape or thread.

Kjer so kovinska in/ali osvetljena področja obarvana ali opremljena s fluorescenčnim nanosom po eni od že opisanih tehnik, tedaj se z uporabo primerne osvetlitve in sistema za odkrivanje obarvano kovino in/ali osvetljena področja dodatno lahko primerja z referenčnim vzorcem, kar je nadaljnja tehnika za ugotavljanje verodostojnosti osnovnega dokumenta, ki vsebuje trak ali nit.Where metallic and / or illuminated areas are colored or equipped with fluorescent coating according to one of the techniques described above, then using a suitable illumination and detection system the colored metal and / or illuminated areas can be further compared to the reference pattern, which is a further technique for determining the authenticity of a basic document that contains a ribbon or thread.

Izum je v nadaljnjem predstavljen na osnovi izvedbenih primerov, predstavljenih v priloženih načrtih, kjer kaže sl. 1 varnostni papir v tlorisu z vgrajeno varnostno napravo po izumu, sl. 2 prerez po črti Π-Π, sl. 3 detajlno sestavo naprave po izumu v prerezu prav tako po črti II-II, sl. 4 enako kot na sl. 3 le v modifikaciji I, sl. 5 enako kot na sl. 3 le v modifikaciji II, sl. 6 enako kot na sl. 3 le v modifikaciji ΠΙ, in sl. 7 do 14 vsebnost kovine na površini varnostne niti.The invention is further presented on the basis of the embodiments presented in the accompanying drawings, where FIG. 1 is a plan view of a security paper with a built-in security device according to the invention; 2 is a cross-sectional view taken along the line Π-Π; 3 is a cross-sectional view of the device of the invention according to the line II-II; 4 in the same way as in FIG. 3 only in modification I, FIG. 5 in the same way as in FIG. 3 only in modification II, FIG. 6 in the same way as in FIG. 3 only in modification ΠΙ, and FIG. 7 to 14 metal content on the surface of the safety thread.

Varnostna naprava po izumu (sl. 4) je zasnovana iz prosojnega brezbarvnega plastičnega filma 1, na katerem je deloma razporejen kovinski sloj 2. Slednji je razrezan na niti 3 tipične širine 1,2 mm, pri čemer obsega kovina 67% površine niti 3. Slednja je vstavljena v papir 4 npr. na stroju za papir po postopku valjčnega ulivanja tako, da je celotna gramatura papirja 4 nad in pod nitjo 3 bistveno manjša kot gramatura papirja 4, ki leži v bližini niti 3. V omenjenem papiiju 4 so osvetljena področja, ki so zasnovana z demetaliziranim delom niti 3, pri gledanju v prenešeni svetlobi, svetlejša kakor papir 4, ki leži v bližini niti 3.The security device according to the invention (Fig. 4) is made of a transparent colorless plastic film 1, on which the metal layer 2 is partly arranged. The latter is cut into threads 3 of a typical width of 1.2 mm, with the metal comprising 67% of the surface of the thread 3. The latter is inserted into paper 4 e.g. on a paper machine by a roll-casting process such that the total grammar of the paper 4 above and below the thread 3 is substantially smaller than that of the paper 4 adjacent to the thread 3. In said paper 4, illuminated areas are formed, which are formed by a demetalized thread portion 3, when viewed in transmitted light, brighter than paper 4 adjacent to the filament 3.

Varnostna naprava po izumu in v modifikaciji I (sl. 5) obsega prosojen brezbarven plastični film 1, na katerem je deloma razporejen kovinski sloj 2, na brezkovimski strani pa je film 1 zvezno prekrit z barvilo ali fluorescenčni material vsebujočim slojem 5. Film 1 se zatem razreže v niti 3 in vstavi v papir 4. Ko se slednjega opazuje v ustrezni odbiti svetlobi (bodisi vidni, UV ali IR), se prekrita stran niti 3 prikaže zvezno obarvana, pri čemer se na neprekriti strani obarvajo le osvetljena področja. V prenešeni svetlobi se obarvajo le osvetljena področja ne glede na to, s katere strani gleda opazovalec. Tudi druga stran filma 1 je lahko oplaščena s slojem 6 barvila, pri čemer sta barvi slojev 5, 6 med seboj različni. V tem primeru oddaja v odbiti svetlobi vsaka stran svojo lastno določeno barvo bolj ali manj zvezno, čeprav lahko pride do mešanja barv v osvetljenem področju. V prenešeni svetlobi pa se osvetljena področja zaznavajo kot tretja barva, kije mešanica drugi dveh in je od slednjih bistveno distinktivna. Sloja 5, 6 barvila sta lahko tudi dvobarvna, pri čemer se barvno zaznavanje metaliziranih in osvetljenih področij zatem spreminja glede na kot opazovanja in/ali smer osvetlitve.The security device according to the invention and in modification I (Fig. 5) comprises a transparent colorless plastic film 1, on which the metal layer 2 is partially arranged, and on the birch-free side, the film 1 is continuously coated with a dye or fluorescent material containing layer 5. Film 1 se it is then cut into strands 3 and inserted into paper 4. When the latter is observed in the appropriate reflected light (either visible, UV or IR), the covered side of thread 3 appears federally colored, leaving only the illuminated areas on the uncovered side. In transmitted light, only illuminated areas are colored, regardless of which side the observer is viewing. The other side of the film 1 may also be coated with a dye layer 6, the colors of the layers 5, 6 being different from one another. In this case, in the reflected light, each page emits its own particular color more or less continuous, although color mixing in the illuminated area may occur. In the transmitted light, however, the illuminated areas are perceived as a third color, which is a mixture of the other two and is significantly distinctive from the latter. Layers 5, 6 of the dye may also be bi-color, with color perception of metallized and illuminated areas subsequently varying according to the viewing angle and / or direction of illumination.

Naslednji izvedbeni primer-modifikacija II- (sl. 6) je v bistvu enak izvedbenemu primeru v prvi modifikaciji, le da se v danem primeru sloj 5 barvila ali fluorescenčnega materiala vgradi v oz. na plastični film 1 pred nanosom kovinskega sloja 2. Vizualne učinke, podobne tistim iz prve modifikacije, se doseže, ko se deloma demetalizirane niti 3, ki imajo barvilo ali fluorescenčni material v plastičnem filmu 1, vgradi v papir 4.The following embodiment-modification II- (Fig. 6) is essentially the same as the embodiment in the first modification, except that in the present case, a layer 5 of the dye or fluorescent material is incorporated into or. on plastic film 1 prior to application of metal layer 2. Visual effects similar to those of the first modification are achieved when partially demetallized filaments 3 having a dye or fluorescent material in plastic film 1 are embedded in the paper 4.

Varnostna naprava po izumu in v modifikaciji III (sl. 7) obsega na neprosojnem brezbarvnem elastičnem filmu 1 deloma razporejen kovinski sloj 2, ki se ga dobi s pomočjo kemičnega postopka zaščite in jedkanja, pri čemer je lahko zaščita, ki je nameščena preko kovinskega sloja 2 in kjer je to zaželeno, zasnovana iz barvilo ali fluorescenčni material vsebujočega sloja 5, s čimer se tudi obdrži kovino na filmu 1. Film 1 se zatem razreže v niti 3 in vstavi v papir 4. Kadar se slednjega opazuje v ustrezni odbiti svetlobi na metalizirani strani, se kovinska področja obarvajo; osvetljena področja se ne obarvajo. Kadar se papir 4 opazuje na nemetalizirani strani niti 3, se barva ne pojavi. Tudi pri tem izvedbenem primeru je tako kot pri prvi modifikaciji nemetalizirana stran filma 1 zvezno prekrita s slojem 6, ki vsebuje barvilo ali fluorescenčni material drugačne barve od sloja 5. Ko se tako zasnovan varnostni papir opazuje v odbiti svetlobi na nemetalizirani strani, se vidi enako barvo. Ko se papir 4 opazuje v odbiti svetlobi na nemetalizirani strani, se kovinska področja pojavijo v eni barvi, osvetljena področja pa v drugi. Ko se papir 4 opazuje v preneseni svetlobi, se le osvetljena področja vidi v barvi prekritja na nemetalizirani strani, ne glede na to, katera stran niti 3 je obrnjena k opazovalcu.The security device of the invention and in modification III (Fig. 7) comprises, on an opaque, colorless elastic film 1, a partially arranged metal layer 2, which is obtained by means of a chemical protection and etching process, whereby the protection provided over the metal layer can be 2 and, where desired, formed from a dye or fluorescent material containing layer 5, thereby also retaining the metal on film 1. The film 1 is then cut into threads 3 and inserted into the paper 4. When the latter is observed in the corresponding reflected light at metallized sides, metallic areas are colored; illuminated areas do not stain. When paper 4 is observed on the non-metallized side of thread 3, no color appears. In this embodiment, as in the first modification, the nonmetallized side of film 1 is continuously coated with a layer 6 containing a dye or fluorescent material of a different color from layer 5. When the security paper so designed is viewed in reflected light on the nonmetallized side, the same is seen color. When paper 4 is observed in reflected light on a nonmetallized side, the metal areas appear in one color and the illuminated areas appear in another. When paper 4 is viewed in transmitted light, only the illuminated areas are visible in the color of the overlay on the nonmetallized side, regardless of which side of thread 3 faces the observer.

Varnostna naprava po izumu, zasnovana po kateremkoli od opisanih izvedbenih primerov, je lahko v obliki niti 3 vstavljena v papir tako, da je na preddoločenih intervalih vzdolž niti 3 izpostavljena na površini na vsaj eni strani papirnega lista (sl. 2), po tehniki, opisani v EP-B-0059 056. Prisotnost osvetljenih področij delno metalizirane niti 3 v področjih papirja 4, kjer je nit 3 izpostavljena ali nameščena v okno 7 na površini papirja 4, močno oteži simulacijo pojavljanja teh slednjih območij in izboljša celotno varnost dokumenta. V prenešeni svetlobi je zelo jasno vidno, daje pretežno kovinska nit 3 kontinuirana, toda, ko je prednja, tj. v okno 7 postavljena površina papirja 4 opazovana v odbiti svetlobi, se pojavi zelo oster kontrast med močno odbijajočimi izpostavljenimi območji metalizirane niti 3 in istimi metaliziranimi območji, nameščenimi v vlaknast mostič 8 med dvema oknoma 7, pri čemer je nit 3 v bistvu nevidna. V primeru vgradnje varnostne naprave po izumu v okna 7 pridejo do popolne veljave barvni ali fluorescenčni posredniki, kot je opisano v izvedbenih primerih. Prednost uporabe delno metalizirane niti 3 na poprej omenjeni način je velikega pomena glede zaščite pred ponarejevalci. Kadar se bankovce ali druge dokumente, ki vsebujejo varnostno nit 3 razporejeno v oknih 7, reproducira na barvnem fotokopirnem stroju ali laserskem žarkovnem tipalniku, se metalizirana področja varnostne niti 3 v izpostavljenih področjih reproducirajo kot črna ali temna področja, osvetljena področja pa kot bela ali svetla področja. Da bi simuliral pojav originalnega dokumenta, mora ponarejevalec na nek način zagotoviti pojav kovine v ustreznem področju, pri čemer morajo osvetljena področja ostati čista. To pa je kompliciran in dolgotrajen postopek ter težavnejši kot simulacija prisotnosti v celoti metalizirane varnostne niti 3. Na tak način se izboljša varnost proti ponarejanju z barvnimi fotokopirnimi stroji ali laserskimi žarkovnimi tipalniki.The security device according to the invention, designed according to any of the described embodiments, may be in the form of thread 3 inserted into the paper so that at predetermined intervals along the thread 3 it is exposed on the surface on at least one side of the paper sheet (Fig. 2), described in EP-B-0059 056. The presence of illuminated areas of partially metallized filament 3 in areas of paper 4, where filament 3 is exposed or placed in a window 7 on the surface of paper 4, greatly complicates the simulation of the appearance of these latter areas and improves overall document security. In the light transmitted, it is very clearly seen that the predominantly metallic filament 3 is continuous, but when the front, i.e. placed in the window 7 the surface of the paper 4 observed in reflected light, a very sharp contrast occurs between the strongly reflecting exposed areas of metallized filament 3 and the same metallized areas placed in the fibrous bridge 8 between the two windows 7, leaving thread 3 essentially invisible. In the case of the installation of the security device of the invention in windows 7, color or fluorescence agents, as described in the embodiments, will come into full effect. The advantage of using partially metallized thread 3 in the aforementioned manner is of great importance with regard to protection against counterfeiters. When banknotes or other documents containing security thread 3 arranged in windows 7 are reproduced on a color photocopier or laser beam sensor, metallized security thread 3 areas in the exposed areas are reproduced as black or dark areas and the illuminated areas are white or light. areas. In order to simulate the appearance of the original document, the forger must in some way ensure the appearance of the metal in the appropriate area, while keeping the illuminated areas clean. This is a complicated and time-consuming process and more difficult than simulating the presence of a fully metallized security thread 3. This improves the security against counterfeiting by using color copiers or laser beam sensors.

Varnostna naprava po izumu, zasnovana po kateremkoli od opisanih izvedbenih primerov, je lahko v obliki niti 3 vstavljena med dve plasti vlaken, ki se neodvisno tvorita na papirnem stroju, in sicer pred združitvijo teh plasti. Za zagotovitev področij v eni od plasti, kjer je debelina vlaken lokalno zmanjšana na zelo tanek sloj ali pa da vlakna sploh niso prisotna, npr. luknja 9 (sl. 3), se uporablja postopek vodnega označevanja. Alternativno se lahko izvede niz lukenj 9 v eni od plasti z vodnim curkom ali kakim drugim sredstvom. Nit 3 je pri tem nameščena tako, da teče preko teh lukenj 9 ali tankih področij tako, da je deloma ali popolnoma izpostavljena na vsaj eni površini končnega izdelka in to v preddoločnih lokacijah. Luknje 9 ali področja prekritja s tankimi vlakni v dveh plasteh so lahko vsaj deloma skladne druga z drugo in nitjo 3 tako, da je slednja hkrati izpostavljena na obeh straneh lista v preddoločenih lokacijah, se pravi, da nit 3 poteka skozi eno ali več lukenj 9.The security device of the invention, designed according to any one of the described embodiments, may be inserted in the form of a thread 3 between two layers of fibers that form independently on a paper machine, prior to joining these layers. To provide areas in one of the layers where the fiber thickness is locally reduced to a very thin layer or that the fibers are not present at all, e.g. hole 9 (Fig. 3), the water marking process is used. Alternatively, a series of holes 9 may be made in one of the layers by water jet or other means. The thread 3 is then arranged to run through these holes 9 or thin areas so that it is partially or fully exposed on at least one surface of the finished product in predetermined locations. Holes 9 or thin-fiber overlays in two layers may be at least partially consistent with each other and thread 3 such that the latter is exposed simultaneously on both sides of the sheet in predetermined locations, i.e., thread 3 runs through one or more holes 9 .

Prosojni brezbarvni film 1 je lahko deloma metaliziran z zaščitno plastjo, ki vsebuje barvilo ali fluorescenčni material, nemetalizirana stran pa obsega zvezni nanos z materialom, ki vsebuje barvilo ali fluorescenčni material drugačne barve. Film 1, razrezan v niti 3, se vstavi v papir po postopku, opisanem v EP-B-0059056, tako da so območja niti 3 izpostavljena na eni strani lista. Kjer je metalizirana stran niti 3 izpostavljena v oknih 9 papirja 4, je zelo močan kontrast med metaliziranim območjem, ki se obarva zaradi barvnega posrednika v sloju 5, in osvetljenimi območji, ki se obarvajo zaradi barvnega posrednika v zveznem sloju 6, ko se papir 4 opazuje v ustrezni odbiti svetlobi na taisti strani lista; kontrast je močnejši kakor za taista območja med okni 9, kjer je nit prekrita z vlakni z obeh strani. V preneseni svetlobi se opazuje le osvetljena območja, ki se obarvajo zaradi barvnega posrednika v sloju 6, in se zdijo svetlejša v tistih območjih okna 9, kjer je nit 3 izpostavljena na eni strani, kakor med okni 9, kjer je nit 3 pokrita z vlakni na obeh straneh.The translucent colorless film 1 may be partially metallized with a protective layer containing a dye or a fluorescent material, and the nonmetallized side comprises a continuous coating with a material containing a dye or a fluorescent material of a different color. Film 1 cut into thread 3 is inserted into the paper according to the procedure described in EP-B-0059056 so that the areas of thread 3 are exposed on one side of the sheet. Where the metallized side of thread 3 is exposed in the windows 9 of the paper 4, there is a very strong contrast between the metallized area that stains due to the color mediator in layer 5 and the illuminated areas that stain due to the color mediator in continuous layer 6 when the paper 4 observes in the corresponding reflected light on the wrong side of the leaf; the contrast is stronger than for those areas between windows 9 where the thread is covered with fibers on both sides. In transmitted light, only illuminated areas are observed which are colored by the color mediator in layer 6 and appear brighter in those areas of window 9 where the thread 3 is exposed on one side than between windows 9 where the thread 3 is covered by fibers on both sides.

Kjer je nemetalizirana stran niti 3 izpostavljena v oknih 9 papirja 4 in je slednji opazovan na isti strani v ustrezni odsevajoči svetlobi, ima nit 3 skoraj zvezno barvo, ki je svetlješa v območjih okna 9 kakor med okni 9, kjer je nit 3 prekrita z vlakni. V prenešeni svetlobi se ponovno obarvajo le osvetljena območja zaradi barvnega posrednika v zveznem nanosu ter se zdijo svetlejša v območjih okna 9 kakor med okni 9. Kot alternativa uporabi zveznega nanosa na nemetalizirani strani niti 3 se lahko za dosego enakih učinkov vgradi barvilo ali flourescenčni posrednik v plastični film. Ti izraziti učinki opozarjajo na prisotnost osvetljenih območij v deloma metalizirani niti 3 in znatno otežijo simuliranje metalizirane varnostne niti 3 v papirju 4 z nitjo 3 v oknu 9.Where the nonmetallized side of thread 3 is exposed in the windows 9 of the paper 4 and the latter is observed on the same page in the corresponding reflecting light, the thread 3 has an almost continuous color, which is brighter in the areas of the window 9 than between the windows 9, where the thread 3 is covered with fibers . In transmitted light, only illuminated areas are re-colored due to the color agent in the continuous coating and appear brighter in the areas of window 9 than between windows 9. As an alternative to using continuous coating on the nonmetallized side of thread 3, a dye or fluorescent agent can be installed to achieve the same effects. plastic film. These pronounced effects point to the presence of illuminated areas in partially metallized thread 3 and make it difficult to simulate metallized security thread 3 in paper 4 with thread 3 in window 9.

Navedba najboljšega, prijavitelju znanega načina za gospodarsko izkoriščanje izumaAn indication of the best method known to the applicant for the economic exploitation of the invention

Varnostna naprava po izumu je lahko trak ali nit, Širine 0,5 do 5 mm, prednostno 1 do 3 mm, npr. 1,6 mm. Nit je zasnovana z demetalizacijo vakuumsko nanešenega aluminija, ki je nameščen na poliestrskem filmu. Aluminij se odstrani z uporabo zaščitne plasti in jedkalne tehnike. Količina kovine, prisotne na površini podloge, je prikazana v načrtih, kjer kažeThe security device of the invention may be a strip or a thread, 0.5 to 5 mm wide, preferably 1 to 3 mm wide, e.g. 1.6 mm. The thread is designed by demetalizing vacuum-applied aluminum that is mounted on a polyester film. Aluminum is removed using a protective layer and etching technique. The amount of metal present on the surface of the liner is shown in the plans where it shows

slika picture 7 7 84% 84% slika picture 8 8 67% 67% slika picture 9 9 55% 55% slika picture 10 10 63% 63% slika picture 11 11 84% 84% slika picture 12 12 79% 79% slika picture 13 13 89% 89% slika picture 14 14 61%. 61%.

Bankovci, zasnovani z nitmi, prikazanimi v slikah 8 do 15 načrtov, zagotavljajo izvrstno varnost in zagotavljajo (kadar so vstavljene v papir za bankovce) javno varnostno značilnost, kajti niti so zlasti čitljive z opazovanjem s prenešeno svetlobo brez pomoči leč ali drugih opazovalnih pripomočkov. Niti so skoraj nevidne, če se jih opazuje z odbito svetlobo. Slika 15 opisuje nit z geometričnim profilom. Le-ta se lahko izdela z mehanskim izsekovalnim/rezalnim strojem ali z laserjem, npr. ekscimerskim ali CO₂laserjem. Kot alternativa rezanju demetaliziranega filma se film lahko najprej rezreže na ustrezne oblike, zatem pa demetalizira z ekscimerskim laserjem, ki deluje na razrezano nit (to tehniko se lahko uporablja tudi z vzporedno položeno nitjo). Vzorec, obliko, znak ali podobno varnostnih naprav lahko javnost zazna brez uporabe posebne opazovalne naprave, kot povečevalno steklo, dokument, ki obsega tovrstno napravo, pa se lahko ustrezno spozna kot prvotni dokument.The banknotes designed with the threads shown in Figures 8 to 15 of the plans provide excellent security and (when inserted in banknote paper) a public security feature, since the threads are particularly readable by transmitted light observation without the aid of lenses or other observing devices. Neither are nearly invisible when viewed with reflected light. Figure 15 describes a thread with a geometric profile. It can be made with a mechanical punching / cutting machine or with a laser, e.g. excimer or CO ₂ laser. As an alternative to cutting a demetallized film, the film may first be cut into suitable shapes, and then demetallized with an excimer laser acting on the cut thread (this technique can also be used with a parallel laid thread). The pattern, shape, sign or the like of security devices may be perceived by the public without the use of a special observation device, such as a magnifying glass, and the document comprising such a device may be properly recognized as the original document.

Zaželeno je, da so niti znotraj bankovcev po predloženem izumu za vse smotre in namene identični in da so zato bankovci identični za podano varednost ali izdajo. To bo predmet normalnih izdelovalnih toleranc in za npr. napis kot PORTALS se razume, da je v odsotnosti strojno usmerjene označevalne tehnologije, lahko katerikoli del tega sporočila prisoten glede na vrh ali dnu bankovca; t.j. zlasti dosledno pri prakticiranju z mikrotiskanimi nitmi, ki so splošno uporabne.It is desirable that the threads inside the banknotes of the present invention be identical for all purposes and purposes and that the banknotes are therefore identical for the given security or issue. This will be subject to normal manufacturing tolerances and for e.g. the inscription as PORTALS is understood to mean that in the absence of machine-directed marking technology, any part of this message may be present with respect to the top or bottom of the banknote; i.e. especially consistently when practicing with micro-print threads that are generally applicable.

Razume se, da so varnostni papir, varnostni dokument in bankovec po tej prijavi izdelani popolnoma iz naravnih vlaken (npr. bombaž ali les), deloma iz naravnih in deloma iz umetnih vlaken (npr. nylon, polivinil alkohol, viskoza), in popolnoma iz umetnih materialov (npr. premreženi poliolefin, polipropilen).According to this application, it is understood that the security paper, security document and banknote are made entirely of natural fibers (eg cotton or wood), partly of natural and partly of man-made fibers (eg nylon, polyvinyl alcohol, viscose), and entirely of man-made materials (eg cross-linked polyolefin, polypropylene).

Varnostni dokumenti, ki obsegajo deloma naravna in deloma umetna vlakna, se lahko izdela iz papirja, izdelanega s pripravljanjem vodne mešane disperzije takšnih vlaken za uporabo na običajnih napravah za izdelovanje papirja, npr. na napravah za cilindrično ulivanje ali napravi z dolžinsko intenzivnim sitom, pri čemer je varnostni trak ali druga varnostna naprava vključena po znanem postopku. Papir se lahko alternativno izdela na večplastnem oblikovnem stroju, pri čemer se eno ali več plasti oblikuje celotno iz naravnih ali sintetičnih vlaken; varnostna naprava je uležiščena med plasti na točki, kjer se spajata. Nadaljnja alternativa je laminiranje suhega lista, ki ga tvori popolnoma ali deloma ena vrsta vlakna (npr. umetno) na drug suh list, ki ga tvori drug tip (npr. naravno), pri čemer je varnostna naprava vležiščena na točki laminacije.Security documents covering partly natural and partly man-made fibers may be made from paper made by preparing an aqueous mixed dispersion of such fibers for use on conventional paper-making devices, e.g. on cylindrical casting devices or long-screened sieves, the safety tape or other safety device being incorporated by known procedure. Alternatively, the paper may be produced on a multi-layer forming machine, one or more layers being formed entirely of natural or synthetic fibers; the safety device is suspended between the layers at the point where they merge. A further alternative is to laminate a dry sheet formed entirely or partially by one type of fiber (e.g., artificial) onto another dry sheet formed by another type (e.g., natural), with the security device suspended at the lamination point.

Varnostni dokumenti po izumu, ki obsegajo popolnoma umetne materiale, so lahko zasnovani iz umetnih vlaken na način, ki je analogen običajnim postopkom za izdelavo papirja. Alternativno se lahko npr. list ali tkanino umetnega materiala, npr. polipropilena, laminira z uporabo ustreznega lepila na drug list ali tkanino iz enakega ali različnega umetnega materiala, varnostna naprava, npr. trak, pa je vležiščena znotraj končnega laminata z vgradnjo na točki laminacije. Nadaljnji primerni postopki so strokovnjakom popolnoma jasni.Security documents of the invention comprising fully synthetic materials may be constructed of man-made fibers in a manner analogous to conventional paper-making processes. Alternatively, e.g. sheet or fabric of plastic material, e.g. polypropylene, laminated using suitable adhesive to another sheet or fabric of the same or different plastic material, safety device, e.g. The tape is then sealed inside the final laminate by mounting at the lamination point. Further appropriate procedures are absolutely clear to those skilled in the art.

Prednostno delno metalizirani filmi, na katere se sklicujemo v tej prijavi, so izdelani z vakuumskim nanašanjem aluminija ali druge kovine na plastični film. Vseeno pa je možno uporabljati plastične podlage, ki so prekrite ali tiskane s posebnimi kovinskimi tintami, npr. Metasheen, firme Johnson & Bloy Ltd, Crawley, Sussex, V.Britanija, kije na razpolago pod tintno oznako SLS 34. Slednja se odlikuje po površinsko visoki zrcalni odsevnosti in je tudi prevodna. Barvilo ali fluorescenčni material se lahko vgradi v tinto tako, da se, kadar se varnostni trak osvetli z ustreznim stimulativnim sevanjem, metalizirana območja odražajo kot obarvana območja v popolnem skladju s tiskanimi metaliziranimi območju, ki se jih dobi z omenjeno tinto. Razume se, da se po tem izumu lahko uporablja druge tinte, ki dajejo kovinski videz in zagotavljajo prevodno plast.Preferably the partially metallized films referred to in this application are made by vacuum deposition of aluminum or other metal on a plastic film. However, it is possible to use plastic liners that are covered or printed with special metal inks, e.g. Metasheen, Johnson & Bloy Ltd, Crawley, Sussex, UK, available under SLS 34 ink. The latter is characterized by surface-high reflectivity and is also conductive. The dye or fluorescent material may be incorporated into the ink such that, when the backing tape is illuminated with appropriate stimulating radiation, the metallized areas are reflected as colored areas in perfect harmony with the printed metallized areas obtained by said ink. It is understood that other inks that give a metallic appearance and provide a conductive layer may be used according to the present invention.

Claims

Patent claims

1. A security device in paper comprising a flexible water-impermeable substrate with a layer of metal on at least one side, provided on one side of the device a continuous path of metal deposition along its length, and wherein the security device is at least partially distributed between the layers of paper, comprising a counter face to enable printing to identify a document made from said paper, characterized in that it is between 1 and 3 mm wide thread (3) formed from a transparent plastic film (1) on which a metal layer (2 is partially arranged) ) mounted on paper (4), wherein the non-metal sections of the layer (2) represent from 10% to 50%, preferably from 15% to 40% of the surface of the thread (3), mentioned, signs of the language, preferably letters of the English alphabet comprising non-metal sections, along the thread (3) they represent repeating patterns with at least a few metal-free sections transversely to the thread (3), which are completely surrounded by metal.

Paper security device according to claim 1, characterized in that the thread (3) is arranged within the watermark of the paper (4).

A paper security device according to claims 1 and 2, characterized in that the thread (3) is partially arranged in at least one paper window (9), where substantially no paper fibers are present on the thread (3), the part of the thread (3) is arranged in the area of the two windows (9), which are at least partially stacked.

A paper security device according to claim 1 and in modification I, characterized in that at least one side of the security thread (3) is coated with a dye or a fluorescent material containing a layer (5), wherein the dye and the fluorescent material are the same as also different when contained in layers (5,6) on either side of the thread (3).

5. Paper security device according to claim 1 and in modification II, characterized in that the security thread (3) comprises on one side of the plastic film (1) a metal layer (2) arranged and a layer (5) of dye or fluorescent material is arranged on the surface of the plastic film (1).

Paper security device according to claim 5, characterized in that the color or fluorescence layer (5) is arranged in a plastic film (1).

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Ί. Paper security device according to claim 1 and in modification III, characterized in that the metal layer (2) is disposed on one side of the plastic film (1), with a dye or fluorescent material comprising a protective layer arranged over the metal layer (2). layer (5).

Paper security device according to any one of claims 1 to 7, characterized in that the security thread (3) comprises on one side of the plastic film (1) a metal layer (2) and a two-color layer (5) arranged at least one side of the thread (3).

Paper security device according to any one of the preceding claims, characterized in that the paper (4) is made of man-made fibers or man-made fibers by laminating or otherwise combining at least two sheets of plastic material with a security thread (3) inserted into it. ).