EP1871952B1 - Papier haute sécurité et procédé de fabrication associé - Google Patents

Papier haute sécurité et procédé de fabrication associé Download PDF

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Publication number
EP1871952B1
EP1871952B1 EP06766259.3A EP06766259A EP1871952B1 EP 1871952 B1 EP1871952 B1 EP 1871952B1 EP 06766259 A EP06766259 A EP 06766259A EP 1871952 B1 EP1871952 B1 EP 1871952B1
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EP
European Patent Office
Prior art keywords
paper
film
security
polymeric film
security feature
Prior art date
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EP06766259.3A
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German (de)
English (en)
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EP1871952A2 (fr
Inventor
Shilpan Pravinchandra Patel
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Arrow Greentech Ltd
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Arrow Greentech Ltd
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Priority to SI200632208T priority Critical patent/SI1871952T1/sl
Priority to PL06766259T priority patent/PL1871952T3/pl
Publication of EP1871952A2 publication Critical patent/EP1871952A2/fr
Application granted granted Critical
Publication of EP1871952B1 publication Critical patent/EP1871952B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/32—Multi-ply with materials applied between the sheets
    • D21H27/34—Continuous materials, e.g. filaments, sheets, nets
    • D21H27/36—Films made from synthetic macromolecular compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • D21H21/48—Elements suited for physical verification, e.g. by irradiation

Definitions

  • This invention relates to high security paper and to a process for the manufacture of high security paper.
  • the cost of currency notes includes the cost of the paper plus the cost of ink (60%) and other hidden costs (40%) like vending/distribution costs to the end user.
  • High strength currency paper is necessary and 100 % polymer currency, also known as "plastic” currency, has been in circulation in various countries.
  • This "plastic" currency has inherent disadvantages. For example they cannot have a security watermark. Deadfold is not like paper, special inks are needed to adhere to polymer substrate, security threads cannot be inserted/ embedded so surface security (like printing, embossing) is the only method of securing these kinds of "plastic” currency notes. This has been perceived by many countries to be a compromise, which many Reserve Banks are ready to accept in line of the phenomenal strength that this "plastic” currency can impart. Banknotes with lower denominations having lower working life are being promoted as targets for these "plastic” currency notes.
  • the security feature(s) is/are embedded/embossed/printed within/on the polymeric film and this pre-formed polymeric film containing the security feature(s) is incorporated into the security paper during the paper making process.
  • the security features are printed on a continuous web of polymeric film that is incorporated in the paper during the papermaking process.
  • the security features can be embedded/embossed/printed at precise locations onto the continuous web of polymeric film so as to accurately position the security features when the paper and polymeric film webs are brought together.
  • This method allows security features having a wide range of to be embedded in the finished paper. Also, multi-coloured multi security features can be incorporated in a reliable manner.
  • the invention addresses the need for delivering several types of security features at precise location with minimum costs.
  • WSF water soluble film
  • WSF water soluble film
  • WSF water soluble film
  • WSF water soluble film
  • WSF can be manufactured by process of direct casting on a conveyor, by casting on a detachable liner, by casting from a T-die casting, by blowing film on extrusion machines, or by extrusion via T-die extrusion.
  • the formulation of the WSF shall determine the temperature of water in which the WSF shall easily dissolve. This range of water temperature varies between 5°C to 100°C.
  • WSF encompass all types of WSF made from any of the above methods, including direct coating of WSF film forming resins.
  • CWSF means cold water soluble film, which becomes tacky, break and finally dissolve in temperature ranging from 5°C to 40°C, preferably from 10°C to 40°C, more preferably from 20°C to 40°C.
  • the time of tack, break and dissolution of the CWSF shall range between 1 second to 3 minutes upon contact with water/ water pulp slurry. However, this shall depend upon the CWSF formulation.
  • HWSF means hot water soluble film, which shall become tacky, break and finally dissolve in temperature ranging from 40°C to 100°C, preferably from 45°C to 90°C, more preferably from 50°C to 85°C.
  • the time of tack, break and dissolution of the HWSF shall range between 5 seconds to 5 minutes upon contact with hot water/ water pulp slurry. However, this shall depend upon the HWSF formulation.
  • NSHF means non soluble hydrophilic film, which shall become tacky and may break/crack at certain places but shall not dissolve on contact with water/water pulp slurry.
  • the tack and break time shall range between 7 seconds to 10 minutes, which can depend upon the formulation of the non soluble hydrophilic film and the temperature of water.
  • the water soluble films mentioned in this invention are made from materials selected from various film forming resins like polyvinyl alcohol copolymer ionomers, polyvinyl alcohol homopolymer, non - ionomeric poly vinyl alcohol polymer, polymethacrylate., polyvinyl alchohol, polyacrylamide, polymethacrylamide, polyacrylic acid, polymethacrylic acid, polyurethane, polyethyleneglycol, polyvinylpyrrolidone, proteinaceous binders such as gelatin, modified gelatins such as phthaloyl gelatin, polysaccharides such as starch, gum Arabic, pullulan and dextrin and water soluble cellulose derivatives or combination thereof.
  • various film forming resins like polyvinyl alcohol copolymer ionomers, polyvinyl alcohol homopolymer, non - ionomeric poly vinyl alcohol polymer, polymethacrylate., polyvinyl alchohol, polyacrylamide, polymethacrylamide, polyacrylic acid
  • the cellulose derivatives used are methyl cellulose, hydroxy propyl cellulose, hydroxy propyl methyl cellulose, hydroxy propyl ethyl cellulose, hydroxy ethyl cellulose, carboxy methyl cellulose. However, these are by no means limiting.
  • NSNHF This is a non soluble non hydrophilic type of film. This type of film is readily available in the market and can be selected from PP (Poly propylene), PE (Poly ethylene), LDPE (Low density poly ethylene), HDPE (high density polyethylene), LLDPE (Linear low density polyethylene), HIPS (High impact polystyrene), HMHDPE (High molecular high density polyethylene), BOPP (Biaxially oriented poly propylene). However, these are by no means limiting.
  • This non soluble non hydrophilic film can also be made out of biodegradable materials such as PLA (Poly Lactic Acid), PHA (polyhydroxyalkanoic acid) or thermoplastic starch materials or biodegradable polyesters such as ecoflex.
  • NSNHF is necessarily combined with a layer of CWSF polyme on one or both sides, depending upon its end use.
  • the films used for increasing the strength of the paper may be a cold or hot water soluble film or non soluble hydrophilic film or non soluble non hydrophilic film or a combination of these films as mentioned below:
  • Paper pulp The paper pulp used for manufacturing this high strength paper is selected from a mixture of fibers of hardwood and softwood, cotton fibres such as cotton linters and cotton rags, linen, flax, jute, hemp, kozo, mitsumata, gampi, grass fibres such as esparto, bamboo, giant nettle, rice straw and rattan; and wood pulp.
  • cotton fibres such as cotton linters and cotton rags
  • grass fibres such as esparto, bamboo, giant nettle, rice straw and rattan
  • wood pulp wood pulp
  • the security features embedded in the water soluble film may include although not limited to micro-printed text, logos, metallised/demetallised particles/fibres, bar-codes, watermarks, nano-particles which may be machine readable, micro-taggants, DNA (synthetic, natural), UV, PCR, computer, machine readable, RFID devices, etc.
  • the polymeric film may be a cold water soluble film or hot water soluble film or water insoluble hydrophilic film or water insoluble non hydrophilic film or a combination of cold + hot + cold water soluble films or cold + hot water soluble films or cold + non soluble hydrophilic film or cold + non soluble hydrophilic + cold water soluble films or cold + non soluble non hydrophilic films or cold + non soluble non hydrophilic + cold films or slit strips of one or many of these combinations woven or intertwined offline or strips of polymeric films inserted/cast/coated onto another polymeric film and incorporated into the paper during the paper making process.
  • the term "polymeric film” is to be construed accordingly to include all of these for the purpose of this invention.
  • perforations are used for HWSF or NSHF or NSNHF types of polymeric films or their combinations, but this shall not be limiting as far as all types of polymeric films and their combinations are concerned.
  • the polymeric film may be plain or perforated wholly, partially or randomly.
  • One of the embodiment of the invention provides for strengthening the security paper by incorporating a water soluble film or non soluble hydrophilic film or non soluble non hydrophilic film or a combination of these films during the paper making process.
  • the security feature(s) is/are delivered through a cold water soluble film wherein the security feature(s) is/are embedded/printed within/on the cold water soluble film.
  • the cold water soluble film will solubilise within the pulp fibres and hence deliver the security features at the desired location.
  • the security feature(s) is/are delivered through a hot water soluble film, optionally perforated selectively, wherein the security features are embedded/printed within/on the hot water soluble film.
  • the hot water soluble film - carrying the security feature(s) - will remain intact due to the differential temperature of pulp + water slurry and deliver the security features at the desired location, thereby solving the problem of micro-text words or logos floating within the matrix of the paper pulp which may happen when using only a CWSF, or strips of CWSF. It will also give added strength to the final product.
  • the security feature(s) is/are delivered through a non soluble hydrophilic film, optionally perforated selectively, wherein the security feature(s) is/are embedded/printed within/on the non soluble hydrophilic film.
  • This film will not dissolve into the pulp fibres but will become tacky due to its hydrophilic nature and shall adhere to the partially formed bed of pulp. Hence the film will remain intact and deliver the security feature(s) at the desired location. It will also give added strength to the final product. This film can be used particularly when the water-pulp slurry temperature is a little higher. It will also give added strength to the final product.
  • the security feature(s) is/are delivered through a non soluble non hydrophilic film wherein the security features are embedded/printed within/on the NSNHF.
  • the non soluble non hydrophilic film will not dissolve into the pulp fibres and also will not become tacky but will be sucked inside as it is perforated, hence delivering the security features at precise place and increasing the strength of the paper.
  • the security feature(s) is/are delivered through a combination of cold + hot water soluble film, wherein the HWSF is optionally perforated selectively and the security feature(s) is/are embedded/embossed/printed within/on the hot water soluble film.
  • the cold water soluble film will solubilise into the pulp fibres increasing the strength of the paper while the hot water soluble film containing the security feature(s) will remain intact and hence deliver the security features at the desired place. It will also give added strength to the final product.
  • the security feature(s) is/are delivered through a combination of cold + hot + cold water soluble films, wherein the HWSF is optionally perforated selectively and security feature(s) is/are embedded/embossed/printed within/on the hot water soluble film.
  • the cold water soluble films will solubilise into the pulp fibres increasing the strength of the paper while the hot water soluble film consisting security features will remain intact due to the differential temperature of the pulp + water slurry, to locate the security feature(s) at the desired place and give added strength to the final produce.
  • the security feature(s) is/are delivered through a combination of cold + non soluble hydrophilic films, wherein the NSHF is optionally perforated selectively and the security feature(s) is/are embedded/embossed/printed within/on the non soluble hydrophilic film.
  • the cold water soluble film will solubilise into the pulp fibres increasing the strength of the paper while the non soluble hydrophilic film will not dissolve into the pulp fibres but will become tacky due to its hydrophilic nature and shall adhere to the partially formed bed of pulp. Hence the film will remain intact and deliver the security feature(s) at the desired place. It will also give added strength to the final product.
  • the security feature(s) is/are delivered through a combination of cold + non soluble hydrophilic + cold water soluble films, wherein the NSHF is optionally perforated selectively and the security feature(s) is/are embedded/embossed/printed within/on the non soluble hydrophilic film.
  • the cold water soluble films will solubilise into the pulp fibres increasing the strength of the paper while the non soluble hydrophilic film consisting security features will not dissolve into the pulp fibres but will become tacky due to its hydrophilic nature and shall adhere to the partially formed bed of pulp. Hence the film will remain intact and deliver the security feature(s) at the desired place. It will also give added strength to the final product.
  • the security feature(s) is/are delivered through a combination of cold + non soluble non hydrophilic films, wherein the NSNHF is optionally perforated selectively and the security feature(s) is/are embedded/embossed/printed within/on the non soluble non hydrophilic film.
  • the cold water soluble film will solubilise into the pulp fibres increasing the strength of the paper while the non soluble non hydrophilic film will not dissolve into the pulp fibres. Hence the film will remain intact and deliver the security feature(s) at the desired place. It will also give added strength to the final product.
  • the security feature(s) is/are delivered through a combination of cold + non soluble non hydrophilic + cold water soluble films, wherein the NSNHF is optionally perforated selectively and the security feature(s) is/are embedded/embossed/printed within/on the non soluble non hydrophilic film.
  • the cold water soluble films will solubilise into the pulp fibres increasing the strength of the paper while the non soluble non hydrophilic film consisting security features will not dissolve into the pulp fibres. Hence the film will remain intact and deliver the security feature(s) at the desired place. It will also give added strength to the final product.
  • the security feature(s) is/are delivered through a combination of polymeric films including strips of films wherein the strips are inserted/cast/coated onto another film, to deliver security features that are embedded/printed within/on the film strips.
  • strips of HWSF consisting security features are inserted/cast/coated on a cold water soluble film.
  • the cold water soluble film will solubilise into the pulp fibres increasing the strength of the paper while the hot water soluble film with security features will remain intact due to the differential temperature of pulp-water slurry, thus solving the problem of micro-text words or logos floating within the matrix of the paper pulp which may happen while only using only CWSF, or strips of CWSF.
  • the security feature(s) is/are delivered through a film matrix wherein the security features embedded/printed within/on the polymeric film strips or on the PVA threads are inter-woven by a warp and weft method.
  • the strips may be a combination of cold + hot water soluble films or only hot water soluble strips or non soluble hydrophilic strips or only cold water soluble strips, to deliver the security features that are embedded/printed within/on the hot water soluble film.
  • the HWSF or NSHF used are optionally perforated selectively The cold water soluble strips will solubilise into the pulp fibres increasing the strength of the paper while the hot water soluble strips containing the security feature(s) will remain intact and hence deliver the security features at the desired place. It will also give added strength to the final product.
  • the present invention provides security paper made by the method according to the first aspect of the invention.
  • polymeric film containing security features can also be incorporated during the fourdrinier process of paper making.
  • step 3 if the film is a CWSF embedded/embossed/printed with security features, then the film will start dissolving as soon as it comes in contact with the pulp bed and will be sucked into the paper when it passes through vacuum boxes and the security features will remain intact in the pulp bed.
  • the film is a HWSF or NSHF or NSNHF or any of the combination having atleast one layer or strip of HWSF / NSHF / NSNHF, then the film will not dissolve and will stay on the surface of the pulp bed due to lower capacity of the vacuum suction box.
  • a HWSF or NSHF or NSNHF or any other combinations of films consisting HWSF / NSHF / NSNHF have to be incorporated into the pulp bed, a Twin former process may be required, depending upon the needs and ultimate quality of paper required.
  • a first ply of wet paper is formed as the water-pulp slurry coming from the stock approach box (12) is dropped on a continuous moving belt (11) by the first former (13).
  • the temperature of the pulp water slurry in the stock approach box ranges 15°C to 40°C, more preferably from 25°C to 30°C.
  • the concentration of the pulp fibres in the pulp-water slurry in the stock approach box is 5% to 7%.
  • the first ply of wet paper formed by the first former constitutes of 80% of wt/thickness of the final paper.
  • a second ply of wet paper is formed on the polymeric film side of the first ply of wet paper by the second former (14).
  • the cylinder (14), covered with a wire cloth, rotates in the vat (17) containing pulp-water slurry. As the cylinder rotates, water is removed from the inside of the cylinder, while a layer of pulp fibres is formed on the outside. This is consolidated by the couch roll (18), which squeezes more water away.
  • the couch roll also peels the wet paper cleanly off the cylinder and transfers it to the moving continuous belt, which carries it to the press section.
  • the second ply of wet paper formed by the second former constitutes of 20% of wt/thickness of the final paper. More water is removed at the press section (19), and the two ply paper is further sent to dryers for further evaporating the moisture from the paper web.
  • the polymeric film or combination of polymeric films containing the security features may be any of the types previously described where the security features are incorporated during the paper making process at precise locations using the polymeric film as a carrier to position the security features precisely in the final paper.
  • the present invention provides a process for making security paper in which one or more security features is accurately positioned in the paper and the paper is optionally strengthened using polymeric film as the carrier for the security feature(s) during the manufacturing process.
  • the polymeric film may be a water soluble film selectively soluble at temperatures above or below the temperature of the water contained in the paper substrate to which it is applied during the process. In this way we includes water soluble films, non soluble hydrophilic films and non soluble non hydrophilic films.
  • the water soluble film may solubilise and be absorbed into the web leaving the security feature(s) at desired places on the web. Alternatively, the water soluble film may remain intact to position the security feature(s) at desired places on the web.
  • the carrier film may comprises two or more films having different solubilities where the differential solubilities of the films can be used to position the security feature(s) at desired locations during the paper making process and optionally to strengthen the paper.
  • the carrier film may comprise a combination of any two or more of could water soluble film, hot water soluble film, non soluble hydrophilic film and non soluble non hydrophilic film.
  • the security feature(s) may be incorporated in any one or more of the films making up the carrier film.
  • a polymeric article is regarded to comprise an article of matter made from a polymer in the form of a polymeric film, polymeric film strips inserted/cast/coated on a polymeric film, polymeric strips inter-woven into a matrix by warp and weft method, polymeric threads inter-woven into a matrix by warp and weft method and the like and combinations thereof.

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  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Credit Cards Or The Like (AREA)

Claims (32)

  1. Procédé de fabrication d'un papier de sécurité doté d'une ou plusieurs caractéristiques de sécurité à des endroits précis dans le papier en utilisant du film polymérique (8) comme support pour la ou les caractéristiques de sécurité et en incorporant le film polymérique (8) contenant la ou les caractéristiques de sécurité pendant le processus de fabrication du papier, caractérisé par la fourniture d'une nappe continue de film polymérique (8) dotée de la ou des caractéristiques de sécurité,, dans lequel le film polymérique (8) est appliqué sur la surface d'une nappe de pâte à papier pendant un processus de moulage par cylindre de fabrication de papier, comprenant les étapes suivantes :
    a. remplissage d'une cuve (2) avec une bouillie composée de pâte et d'eau ;
    b. formage d'un lit de pâte à papier sur une surface extérieure d'un cylindre rotatif (1) recouvert d'une toile en fil de fer ;
    c. application en couche d'une nappe continue de film polymérique préformé (8) dans laquelle est ou sont noyées/gaufrées/imprimées une ou des caractéristiques de sécurité sur la surface du lit de pâte à papier humide au niveau d'un rouleau de couchage (7) ;
    d. passage de la structure dans des caissons sous vide (9) pour éliminer l'excédent d'eau dans le lit de pâte à papier humide ;
    e. passage de la structure dans un rouleau de compression (10) pour éliminer le rideau d'eau excédentaire puis dans des sécheurs pour continuer à faire évaporer l'humidité de la nappe de papier afin de produire une nappe de papier contenant le film polymérique doté d'une ou plusieurs caractéristiques de sécurité.
  2. Procédé de fabrication d'un papier de sécurité doté d'une ou plusieurs caractéristiques de sécurité à des endroits précis dans le papier en utilisant du film polymérique (8) comme support pour la ou les caractéristiques de sécurité et en incorporant le film polymérique (8) contenant la ou les caractéristiques de sécurité pendant le processus de fabrication du papier, caractérisé par la fourniture d'une nappe continue de film polymérique (8) dotée de la ou des caractéristiques de sécurité, dans lequel le film polymérique (8) est appliqué sur la surface d'une nappe de pâte à papier humide pendant un processus à double formeur de fabrication de papier, comprenant les étapes suivantes :
    a. formage d'un premier pli de la nappe de papier humide au moyen d'un premier formeur sur une bande se déplaçant en continu (11) ;
    b. application en couche d'une nappe continue de film polymérique préformé (8) noyée/gaufrée/imprimée de caractéristiques de sécurité sur le premier pli de la nappe de papier humide à l'aide d'un rouleau de guidage (16) ;
    c. formage d'un second pli de nappe de papier humide sur la face du film polymérique (8) distante du premier pli de nappe de papier humide par un second formeur (14) ;
    d. passage de la structure dans une section de presse (19) pour éliminer l'excès d'eau et ensuite vers des sécheurs pour continuer à faire évaporer l'humidité de la nappe de papier pour produire une nappe de papier contenant le film polymérique doté d'une ou plusieurs caractéristiques de sécurité.
  3. Procédé selon la revendication 1 ou la revendication 2, dans lequel la ou les caractéristiques de sécurité sont apportées par un film polymérique qui est un film soluble dans l'eau froide qui se dissout et est absorbé dans les fibres de la pâte de la nappe en papier pendant le processus de fabrication du papier.
  4. Procédé selon la revendication 1 ou la revendication 2, dans lequel la ou les caractéristiques de sécurité sont apportées par un film polymérique qui est un film soluble dans l'eau chaude qui reste intact et adhère à la nappe de papier pendant le processus de fabrication du papier.
  5. Procédé selon la revendication 1 ou la revendication 2, dans lequel la ou les caractéristiques de sécurité sont apportées par un film polymérique qui est un film hydrophile non soluble qui reste intact et adhère à la nappe de papier pendant le processus de fabrication du papier.
  6. Procédé selon la revendication 1 ou la revendication 2, dans lequel la ou les caractéristiques de sécurité sont apportées par un film polymérique qui est un film non hydrophile non soluble qui reste intact dans la nappe de papier pendant le processus de fabrication du papier.
  7. Procédé selon la revendication 1 ou la revendication 2, dans lequel la ou les caractéristiques de sécurité sont apportées par un film polymérique qui est une combinaison de films solubles dans l'eau froide et chaude, dans lequel le film soluble dans l'eau froide se dissout et est absorbé dans les fibres de la pâte de la nappe de papier et le film soluble dans l'eau chaude reste intact et adhère à la nappe de papier.
  8. Procédé selon la revendication 7, dans lequel la ou les caractéristiques de sécurité sont contenues dans le film soluble dans l'eau chaude.
  9. Procédé selon la revendication 1 ou la revendication 2, dans lequel la ou les caractéristiques de sécurité sont apportées par un film polymérique qui est une combinaison de film hydrophile soluble dans l'eau froide et de film hydrophile non soluble, dans lequel, le film soluble dans l'eau froide se dissout et est absorbé dans les fibres de la pâte de la nappe de papier et le film hydrophile non soluble reste intact et adhère à la nappe de papier.
  10. Procédé selon la revendication 9, dans lequel la ou les caractéristiques de sécurité sont contenues dans le film hydrophile non soluble.
  11. Procédé selon la revendication 1 ou 2, dans lequel la ou les caractéristiques de sécurité sont apportées par un film polymérique qui est une combinaison d'un film non hydrophile soluble dans l'eau froide et d'un film non hydrophile non soluble, dans lequel le film soluble dans l'eau froide se dissout et est absorbé dans les fibres de pâte de la nappe de papier et le film non hydrophile non soluble reste intact dans la nappe de papier.
  12. Procédé selon la revendication 11, dans lequel la ou les caractéristiques de sécurité sont contenues dans le film non hydrophile non soluble.
  13. Procédé selon la revendication 1 ou la revendication 2, dans lequel la ou les caractéristiques de sécurité sont apportées par un film polymérique qui est un film soluble dans l'eau froide inséré/coulé/plaqué avec des bandes de film soluble dans l'eau chaude ou des bandes de film hydrophile non soluble ou vice versa.
  14. Procédé selon la revendication 1 ou la revendication 2, dans lequel la ou les caractéristiques de sécurité sont apportées par un film polymérique qui prend la forme d'une matrice, dans lequel un ou plusieurs films polymériques ou fils de PVA sont entrelacés en une matrice par un procédé de chaîne et trame.
  15. Procédé selon la revendication 1 ou la revendication 2, dans lequel la ou les caractéristiques de sécurité sont apportées par une combinaison de films polymériques comprenant des bandes de films, dans lequel les bandes sont insérées/coulées/plaquées sur un autre film afin de créer des caractéristiques de sécurité qui sont noyées/imprimées dans/sur les bandes de films.
  16. Procédé selon la revendication 13 ou 14, dans lequel la largeur/taille des bandes de films polymériques va de 3 mm à 15 mm, de préférence de 4 mm à 10 mm, plus préférentiellement de 5 mm à 7 mm.
  17. Procédé selon la revendication 14, dans lequel la taille du fil de PVA va de 50 denier à 1000 deniers, de préférence de 150 deniers à 700 deniers, plus préférentiellement de 300 deniers à 500 deniers.
  18. Procédé selon la revendication 1 ou 2, dans lequel le film polymérique comprend au moins un film contenant la ou les caractéristiques de sécurité et qui reste intact entre les première et seconde nappes de papier pendant le processus de fabrication du papier.
  19. Procédé selon la revendication 1 ou 2, dans lequel le film polymérique comprend au moins un film polymérique qui se dissout et est absorbé dans les fibres de pâte des première et/ou seconde nappes de papier.
  20. Procédé selon la revendication 1 ou 2, dans lequel le film polymérique comprend une combinaison d'au moins deux films, dans lequel au moins un film est soluble à une température plus basse que l'autre film.
  21. Procédé selon la revendication 1 ou 2, dans lequel le film soluble dans l'eau comprend au moins un film soluble dans l'eau froide et au moins un film soluble dans l'eau chaude, où la ou les caractéristiques de sécurité sont apportées par le film soluble dans l'eau chaude.
  22. Procédé selon les revendications 1 à 20, dans lequel un ou plusieurs films polymériques sont perforés.
  23. Papier de sécurité fabriqué par le procédé selon l'une quelconque des revendications précédentes.
  24. Papier de sécurité selon la revendication 23, dans lequel le film polymérique support est incorporé dans les fibres du papier pendant le processus de moulage par cylindre de la fabrication du papier.
  25. Papier de sécurité selon la revendication 23, dans lequel le film polymérique support est incorporé entre deux nappes du papier pendant le processus à double formeur de la fabrication du papier.
  26. Papier de sécurité selon l'une quelconque des revendications 22 à 25, dans lequel le film polymérique est un film soluble dans l'eau composé de matériaux sélectionnés dans le groupe comprenant les ionomères de copolymère d'alcool de polyvinyle, l'homopolymère d'alcool de polyvinyle, le polymère d'alcool de polyvinyle non ionomérique, l'alcool de polyvinyle, le polyméthacrylate, l'alcool de polyvinyle, la polyacrylamide, le polyméthylacrylamide, l'acide polyacrylique, l'acide polyméthacrylique, le polyuréthane et les matériaux de formage de film comestibles comme le polyéthylène glycol, le polyvinyle pyrrolidone, les liants protéiques comme la gélatine, les gélatines modifiées comme la phthaloyle gélatine, les polysaccharides comme l'amidon, la gomme arabique, le pullulane et la dextrine et les dérivés de cellulose solubles dans l'eau ou leurs combinaisons. Les dérivés de cellulose utilisés sont la méthyle cellulose, l'hydroxy propyle cellulose, l'hydroxy propyle méthyle cellulose, l'hydroxy propyle éthyle cellulose, l'hydroxy éthyle cellulose, la carboxy méthyle cellulose.
  27. Papier de sécurité selon l'une quelconque des revendications 23 à 25, dans lequel le film polymérique est un film non hydrophile non soluble sélectionné parmi le PP (polypropylène), PE (polyéthylène), LDPE (polyéthylène à basse densité), HDPE (polyéthylène à haute densité), LLDPE (polyéthylène linéaire à basse densité), HIPS (polystyrène à haut impact), HMHDPE (polyéthylène densité hautement moléculaire), BOPP (polypropylène à orientation biaxiale).
  28. Papier de sécurité selon l'une quelconque des revendications 23 à 25, dans lequel le film polymérique est un film non hydrophile non soluble composé de matériaux biodégradables comme le PLA (acide polylactique), PHA (acide polyhydroxyalkanoïque), matériaux thermoplastiques à base d'amidon ou les polyesters biodégradables comme l'ecoflex.
  29. Papier de sécurité selon l'une quelconque des revendications 23 à 28, dans lequel le film polymérique a une épaisseur allant de 5 microns à 150 microns, de préférence de 10 microns à 70 microns, plus préférentiellement de 15 microns à 35 microns.
  30. Papier de sécurité selon la revendication 25, dans lequel le papier comprend au moins deux plis.
  31. Papier de sécurité selon la revendication 25 comportant un film polymérique contenant la ou les caractéristiques de sécurité entre les plis.
  32. Papier de sécurité selon l'une quelconque des revendications 23 à 31, dans lequel la ou les caractéristiques de sécurité sont sélectionnées dans le groupe comprenant un micro-texte imprimé, des logos, des particules/fibres métallisées/démétallisées, des codes-barres, des marques à l'eau, des nanoparticules, des micros marqueurs, l'ADN (synthétique, naturel), des UV, PCR, des dispositifs RFID lisibles par UV, PCR, ordinateur ou machine.
EP06766259.3A 2005-03-22 2006-03-22 Papier haute sécurité et procédé de fabrication associé Active EP1871952B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200632208T SI1871952T1 (sl) 2005-03-22 2006-03-22 Papir z visokimi varnostnimi standardi in postopek proizvodnje
PL06766259T PL1871952T3 (pl) 2005-03-22 2006-03-22 Wysoce zabezpieczony papier i proces wytwarzania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN312MU2005 2005-03-22
PCT/IN2006/000100 WO2006117804A2 (fr) 2005-03-22 2006-03-22 Papier haute sécurité et procédé de fabrication associé

Publications (2)

Publication Number Publication Date
EP1871952A2 EP1871952A2 (fr) 2008-01-02
EP1871952B1 true EP1871952B1 (fr) 2017-09-13

Family

ID=37074621

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06766259.3A Active EP1871952B1 (fr) 2005-03-22 2006-03-22 Papier haute sécurité et procédé de fabrication associé

Country Status (8)

Country Link
US (1) US20100193146A1 (fr)
EP (1) EP1871952B1 (fr)
AP (1) AP2007004187A0 (fr)
HU (1) HUE034690T2 (fr)
PL (1) PL1871952T3 (fr)
RU (1) RU2409473C2 (fr)
SI (1) SI1871952T1 (fr)
WO (1) WO2006117804A2 (fr)

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DE602006014116D1 (de) 2005-04-15 2010-06-17 Arrow Coated Products Ltd Selbstzerstörende, irreversible sicherheitsverpackungsfolie
US8673236B2 (en) 2006-05-25 2014-03-18 Arrow Coated Products, Ltd. Water soluble film based matrix to collect samples extracted from living species
EP3360927B1 (fr) 2009-06-26 2020-09-09 CJ CheilJedang Corporation Compositions de pha comprenant du pbs et du pbsa et leur procédé de production
CN102589262B (zh) * 2011-12-28 2014-04-02 浙江工贸职业技术学院 纸币烘干装置、纸币消毒机和纸币处理方法
US9353258B2 (en) 2012-06-05 2016-05-31 Metabolix, Inc. Low glass transition polyhydroxyalkanoates for modification of biodegradable polymers
IN2012MU02939A (fr) * 2013-04-08 2015-07-10 Shilpan Pravinchandra Patel
DE102013014309A1 (de) * 2013-08-29 2015-03-05 Bundesdruckerei Gmbh Datenblatt für ein Sicherheits- und/oder Wertdokument
EP3377579A1 (fr) 2015-11-17 2018-09-26 CJ Cheiljedang Corporation Mélanges polymères à vitesses de biodégradation pouvant être régulées
US10391805B2 (en) 2017-09-25 2019-08-27 International Business Machines Corporation Electrical component assembly on flexible materials

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US1748360A (en) * 1926-04-16 1930-02-25 Paper & Textile Machinery Co Manufacture of reenforced paper and the like
US1731754A (en) * 1928-05-11 1929-10-15 Dispersions Process Inc Artificial leather sheeting and method of making the same
US1887143A (en) * 1930-04-05 1932-11-08 William A N Spencer Paper making apparatus
US3867252A (en) * 1966-04-20 1975-02-18 Michal Skrabak Twin-wire multi-ply paper making machine
DE2919649A1 (de) * 1979-05-16 1980-11-20 Bbc Brown Boveri & Cie Sicherheitspapier
US4552617A (en) * 1984-06-13 1985-11-12 Crane & Co. Security features in paper
DE4036637A1 (de) * 1990-11-16 1992-05-21 Gao Ges Automation Org Wertpapier und verfahren zu seiner herstellung
DE19809085A1 (de) * 1998-02-25 1999-08-26 Paugstadt Optisches Sicherheitsmerkmal und Verfahren zu dessen Herstellung
DE19829004A1 (de) * 1998-06-30 2000-01-05 Giesecke & Devrient Gmbh Sicherheitspapier
US20040253434A1 (en) * 2001-10-09 2004-12-16 Patel Shilpan Pravinchandra Method of manufacturing embedded water soluble film carrier
EP1599346B2 (fr) * 2003-02-27 2018-02-21 Landqart AG Stratifie multicouche
ES2339369T3 (es) * 2004-12-23 2010-05-19 Landqart Estructura multicapa como substrato de impresion asi como procedimiento para su fabricacion.

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Also Published As

Publication number Publication date
PL1871952T3 (pl) 2018-02-28
EP1871952A2 (fr) 2008-01-02
RU2007135130A (ru) 2009-04-27
AP2007004187A0 (en) 2007-10-31
US20100193146A1 (en) 2010-08-05
WO2006117804A2 (fr) 2006-11-09
RU2409473C2 (ru) 2011-01-20
WO2006117804A3 (fr) 2007-01-11
WO2006117804B1 (fr) 2007-02-22
HUE034690T2 (hu) 2018-02-28
SI1871952T1 (sl) 2017-12-29

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