HUE034690T2 - Fokozott biztonságú papír és az elõállítására szolgáló eljárás - Google Patents
Fokozott biztonságú papír és az elõállítására szolgáló eljárás Download PDFInfo
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- HUE034690T2 HUE034690T2 HUE06766259A HUE06766259A HUE034690T2 HU E034690 T2 HUE034690 T2 HU E034690T2 HU E06766259 A HUE06766259 A HU E06766259A HU E06766259 A HUE06766259 A HU E06766259A HU E034690 T2 HUE034690 T2 HU E034690T2
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- film
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- security
- soluble
- polymer
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Classifications
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- 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
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- 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
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- 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
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- Paper (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Credit Cards Or The Like (AREA)
Description
(12) EUROPEAN PATENT SPECIFICATION (45) Date of publication and mention (51) Int Cl.: of the grant of the patent: D21H 27136 <200601> D21H 21148 <2006 01> 13.09.2017 Bulletin 2017/37 D21H 21I40<2006 01> (21) Application number: 06766259.3 (86) International application number: PCT/IN2006/000100 (22) Date of filing: 22.03.2006 (87) International publication number: WO 2006/117804 (09.11.2006 Gazette 2006/45)
(54) HIGH SECURITY PAPER AND PROCESS OF MANUFACTURE
HOCHSICHERES PAPIER UND HERSTELLUNGSVERFAHREN PAPIER HAUTE SECURITE ET PROCEDE DE FABRICATION ASSOCIE (84) Designated Contracting States: (74) Representative: Kent, Josephine
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR Barker Brettell LLP HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI 100 Hagley Road SK TR Edgbaston
Birmingham B16 8QQ (GB) (30) Priority: 22.03.2005 IN MU03122005 (56) References cited: (43) Date of publication of application: EP-A1-0 019 191 EP-A2-1 365 069 02.01.2008 Bulletin 2008/01 WO-A-2004/076198 WO-A1-03/031637 WO-A1-2006/066431 DE-A1- 19 809 085 (73) Proprietor: Arrow Greentech Limited US-A- 4 552 617
Mumbai 400 093 (IN) (72) Inventor: PATEL, Shilpan Pravinchandra Mumbai 400 053,
Maharashtra State (IN)
Description FIELD OF INVENTION
[0001] This invention relates to high security paper and to a process for the manufacture of high security paper. BACKGROUND OF INVENTION
[0002] The technology of machine reading security features needs expensive chemicals, pigments and DNAs. Being machine readable and invisible to the naked eye, the security features need to be positioned discreetly so as to enable the reader to acceptor reject the final security documents or bank notes. Precise delivery of these expensive chemicals/ security features is needed to identify location and control final costs.
[0003] 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.
[0004] Several patents have been filed on delivering security features to the paper but the invention addresses the need for delivering several types of security features at precise location with minimum costs as well as give the combined strength of a paper plus film.
[0005] One such patent is US 4552617 wherein thin strips soluble in water are printed with security features and these individually printed strips are then acetylated or heat treated prior to locating on the paper web. The thin strips dissolve during the dewatering and drying stage and the microprinted indicia will remain in the paper. Problems arise for accurately locating individual strips on the paper web. Also, it is not possible to deliver security features of high dimension using very thin strips.
[0006] Accordingly, it is an object of the present invention to provide an improved method of producing high security paper with security features at precise locations.
[0007] According to a first aspect of the invention, there is provided a process of delivering one or more security features at precise places into security paper used for bank notes, passport paper, visa paper, security documents, etc. using polymeric film(s) as a carrier for the security feature(s).
[0008] By this invention, 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.
[0009] In preferred embodiments, the security features are printed on a continuous web of polymeric film that is incorporated in the paper during the papermaking process. In this way, 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.
[0010] In this way, the invention addresses the need for delivering several types of security features at precise location with minimum costs.
[0011] As used hereinafter in the description and claims, the following terms shall have the meaning defined [0012] WSF (water soluble film): By definition shall mean Water Soluble film(s) of all types. 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. For the purpose of this invention it is clarified that WSF encompass all types of WSF made from any of the above methods, including direct coating of WSF film forming resins.
[0013] For the purpose of this invention it is clarified that 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.
[0014] Similarly, for the purpose of this invention it is clarified that 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.
[0015] Similarly, for the purpose of this invention it is clarified that 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.
[0016] 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. 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.
[0017] Addition and inclusion of certain additives like ammonium chloride and other such alkaline chemicals will render the film to be non soluble hydrophilic film.
[0018] 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.
[0019] Film combinations: 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 ora combination of these films as mentioned below: 1. CWSF + HWSF: This is a combination of cold and hot water soluble films wherein the cold/hot water soluble is cast/coated/laminated onto the hot/cold water soluble film. 2. CWSF + HWSF + CWSF: This is a combination of water soluble films wherein the hot water soluble film will be between two cold water soluble films. 3. CWSF + NSHF: This is a combination of cold water soluble and non soluble hydrophilic films wherein the NSHF/CWSF is cast/coated/laminated on the CWSF/NSHF film. 4. CWSF + NSHF + CWSF: This is a combination of cold water soluble/ non soluble hydrophilic/cold water soluble films wherein the NSHF will be between two cold water soluble films. 5. CWSF + NSNHF: This is a combination of cold water soluble and non soluble non hydrophilic film wherein the NSNHF/CWSF is cast/coated/laminated on the CWSF/NSNHF film. 6. CWSF + NSNHF + CWSF: This is a combination of cold water soluble / non soluble non hydrophilic / cold water soluble films wherein the NSNHF will be between two cold water soluble films. 7. Machine direction strips matrix: Strips of polymeric films inserted/cast/ coated onto another polymeric film. This combination can be formed by zone coating or discreet printing or zone extrusion striping or formation of a film on another polymeric film which is then inserted into paper during the paper making process. 8. Woven tape matrix: Strips of polymeric films or PVA threads inter-woven by a warp and weft method. Here the polymeric film or its combination as described before, is slit into microtapes having width in the range of 3 mm to 15 mm, preferably 4 mm to 10 mm, more preferably 5 mm to 7 mm. However, this range is by no means limiting. However, this range is by no means limiting. The size of the PVA threads ranges from 50 deniers to 1000 deniers, preferably 150 deniers to 700 deniers, more preferably from 300 deniers to 500 deniers. However, this range is by no means limiting. These tapes or threads are woven offline into a warp and weft, as can be seen in a fabric making machine, and a continuous matrix is made in a roll form. These tapes can be inserted into a pulp-paper web in a combination of MD (machine direction) and CD (cross direction). 9. Films With Perforations: Any of the above mentioned films or combination of films could be perforated at random places, discreet places or all over..These perforations can be done by various methods like hot needles, mechanical /needle covered rollers, pneumatic/mechanical perforation machines etc. However, these methods are by no means limiting.
[0020] 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. However, these are by no means limiting.
[0021] Security Features: 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.
[0022] 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 ora 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.
[0023] Preferably, 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.
[0024] 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.
[0025] In another embodiment of the invention, 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.
[0026] In yet another embodiment of the invention, 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 hotwater 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.
[0027] In yet another embodiment of the invention, 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.
[0028] In yet another embodiment of the invention, 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.
[0029] In yet another embodiment of the invention, 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.
[0030] In yet another embodiment of the invention, 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.
[0031] In yet another embodiment of the invention, 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.
[0032] In yet another embodiment of the invention, 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.
[0033] In yet another embodiment of the invention, 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.
[0034] In yet another embodiment of the invention, 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.
[0035] In yet another embodiment of the invention, 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. E.g. 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.
[0036] In yet another embodiment of the invention, 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. E.g. 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.
[0037] According to a second aspect, the present invention provides security paper made by the method according to the first aspect of the invention.
[0038] Embodiments of the invention will now be described in more detail, by way of example with reference to the accompanying drawings, wherein:
Figure 1 shows a first process for the manufacture of high strength paper according to the invention; and Figure 2 shows a second process for the manufacture of high strength paper according to the invention.
[0039] Referring to Figure 1, the process of incorporating a polymeric film embedded/embossed/printed with security features into the paper during the paper making process by the cylinder mould method is as follows: 1. Filling the vat (2) with the pulp-water slurry entering at (3), the pulp content ranging from 5 to 7%. 2. Formation of the paper body on the outside of the rotating cylinder (1) covered with a wire cloth. As the cylinder rotates, water is removed from the inside of the cylinder and a layer of fibres is formed on the outside. This is consolidated by couch roll (7), which squeezes more water away. The couch roll also peels the wet paper cleanly off the cylinder mould and transfers it to the continuous moving belt (3). 3. Layering of a preformed polymeric film (8), which is embedded/embossed/printed with security features, onto the pulp fiber bed at the couch roll as shown in the figure. 4. Passing the construction through the vacuum boxes (9) to remove excess water from the pulp bed. The fiber content in the pulp increases to 30 to 40%. 5. Passing the construction through press roll (10) to remove excess water. 6. Sending the construction to dryers for further evaporating the moisture from the paper web.
[0040] Similarly, the polymeric film containing security features can also be incorporated during the fourdrinier process of paper making.
[0041] During 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.
[0042] If the film is a HWSF or NSHF or NSNFIF or any of the combination having atleast one layer or strip of FIWSF / NSFIF / 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. Hence, if 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.
[0043] As shown in figure 2, 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 to40°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 polymeric film or either a combination of polymeric films embedded/embossed/printed with security features, as unwound from the unwinder (15), is incorporated into the first ply of the wet paper web with the help of a guide roll (16) as shown in the figure. 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.
[0044] 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.
[0045] The following experiments were conducted in the lab to prove that a polymeric film when incorporated into the paper will increase the strength of the paper:
The following experiments were conducted in the lab to prove the invention:
Forming Paper: 1. We got some dehydrated virgin pulp from a paper mill and cut the pulp matrix into small pieces and soaked the pieces in warm water in the large tub overnight. 2. We filled the blender halfway with warm water, then added a handful of the soaked pulp pieces. We blended the pieces until no pieces of pulp sheet were seen. This formed into the pulp-water slurry. 3. We poured the blended mixture into the large tub and then filled the tub with warm water, mixing thoroughly until the ingredients were evenly dispersed. 4. We slide a screen/sieve into the tub and allowed some pulp to settle onto the screen and still holding the screen underwater, gently moved it back and forth to get an even layer of fibers on the screen. 5. We lifted the screen out of the slurry, keeping it flat and allowed it to drip over the tub until most of the water has drained through. 6. We dried the wet paper with the help of a hairdryer and then left it to dry for few hours to remove excess water. 7. When the paper was dry, we gently peeled it off from the screen to form a hand made paper. We weighed the paper which was 110 GSM. 8. We tested the tensile strength of this paper as per standard D 882 on a universal testing machine (UTM). Forming Paper incorporated with CWSF: 1. We dipped a screen into the tub containing pulp-water slurry as formed in the above process and allowed some pulp to settle onto the screen and still holding the screen underwater, gently moved it back and forth to get an even layer of fibers on the screen. 2. We lifted the screen out of the slurry, keeping it flat and allowed it to drip over the tub until most of the water has drained through and placed the screen on the floor. 3. We layered the top of the wet paper with 30 microns CWSF. As soon as the CWSF came in contact with wet paper, it started dissolving and after some time dissolved completely. 4. We dried the wet paper + CWSF with the help of a hair dryer and then left it to dry for few hours to remove excess water. 5. When the paper + CWSF was dry, we gently peeled it off from the screen to form a high strength paper. The thickness of this construction was 110 GSM. 6. We tested the tensile strength of this paper+ CWSF as per standard D 882 on a universal testing machine (UTM).
Forming paper incorporated with HWSF: 1. We dipped a screen into the tub containing pulp-water slurry as formed in the above process and allowed some pulp to settle onto the screen and still holding the screen underwater, gently moved it back and forth to get an even layer of fibers on the screen. 2. We lifted the screen out of the slurry, keeping it flat and allowed it to drip over the tub until most of the water has drained through and placed the screen on the floor. 3. We layered the top of the wet paper with 20 microns HWSF. As soon as the HWSF came in contact with wet paper, it became tacky but did not dissolve. 4. We formed another layer of wet pulp on another screen and let the water drip as explained above and we gently put this screen on top of the HWSF side of the wet paper as formed in step 3. 5. We dried the wet paper + HWSF + paper with the help of a hair dryer and then left it to dry overnight to remove excess water. 6. When the paper + HWSF + paper was dry, we gently peeled it off from the screen to form a high strength paper. 7. We tested the tensile strength of this paper + HWSF + paper as per standard D 882 on a universal testing machine (UTM).
[0046] Simila rly, a C -H combi nation of WSF (20 micro ns) was incorporated into the paper as per the above process.
[0047] Care was taken that the thickness of the paper incorporated with polymeric film was kept constant.
[0048] The strength comparison of paper, paper incorporated with CWSF, paper incorporated with HWSF and paper incorporated with C-H combination of WSF is shown table 1: [0049] Experiment were also done to 1. We cast a HWSF film and zone coated using CWSF formulation with security elements, like UV light visible security dyes, embedded within the batch mix, forming strips of coated and uncoated CWSF lines. 2. We inserted this matrix as formed in 1, into pulp mix by the paper making process as described in the experiments done earlier. 3. We inspected the sheet of paper and found that the security elements as mentioned in 1 were deposited at the same desired place and that strength had increased as an advantage to this method.
To prove that we can now embed many visible and invisible security elements and ensure that the same are released at a desired location on the web of paper and therefore, in the final sheet of paper, for example a Bank Note. Experiment of Security element" Printed " on a zone cast film using combination of CWSF and HWSF methods. 4. We cast a HWSF film and zone coated using CWSF formulation with security elements, like UV light visible security dyes, embedded within the batch mix, forming strips of coated and uncoated CWSF lines. 5. We printed an indicia, using a secure gravure cylinder and security inks, on top of the CWSF areas, which may be optionally be identified using a UV lamp for facilitating print registration. 6. We inserted this matrix as formed in 1, into pulp mix as mentioned earlier. 7. We inspected the sheet of paper and found that the security elements as mentioned in 4 and 5 were deposited at the same desired place and that strength had increased as an advantage to this method.
Experiment of Security element" Printed " on a zone cast film using combination of CWSF and HWSF methods. 8. We cast a CWSF film, and coated a time delay tie coating, like a water based film forming acrylic coating, and zone coated using HWSF formulation with security elements, like UV light visible security dyes, embedded within the batch mix, forming strips of coated and uncoated HWSF lines. 9. We printed an indicia, using a secure another gravure cylinder station and security inks, on top of the HWSF areas, which may be optionally be identified using a UV lamp for facilitating print registration. It can be seen that using multiple station one can embed multiple security elements within paper as desired locations. 10. We inserted this matrix as formed in 1, into pulp mix as mentioned above. 11. We inspected the sheet of paper and found that the security elements as mentioned in 8 and 9 were registered at the same desired place and that the printed indicia was visible and intact as it was printed. There was noticeable addition to strength of paper, using this method.
[0050] Similarly, by varying combinations of Cold and Hot water soluble films and "Print Coating", or "Print Casting" or zone coating, desired areas to identify security elements can be produced. Subsequently, these areas can be identified as per the master art work, for searching the security elements in a particular sheet of paper, even after cutting them into small sheets like bank note paper.
[0051] This solves certain problems, like precision insertion of small, unmanageable threads into a master web of bed of pulp, or "floating" of indicia, leading to heavier rejections and subsequently paper manufacturing process.
[0052] As will be appreciated, 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.
[0053] 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.
[0054] 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. For example 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.
[0055] For the purpose of this specification, "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.
Claims 1. A method of making a security paper having one or more security features at precise locations within the paper by using polymeric film (8) as a carrier for the security feature(s) and incorporating the polymeric film (8) containing the security feature(s) during the paper making process characterised by providing a continuous web of polymeric film (8) with the security feature(s), wherein the polymeric film (8) is applied to the surface of a paper pulp web during a cylinder mould process of paper making comprising the following steps: a. filling a vat (2) with a pulp-water slurry; b. forming a wet paper pulp bed on an outer surface of a rotating cylinder (1) covered with a wire cloth; c. layering a continuous web of preformed polymericfilm (8) embedded/embossed/printed with security feature(s) onto the surface of the wet paper pulp bed at a couch roll (7); d. passing the construction through vacuum boxes (9) to remove excess water from the wet paper pulp bed; e. passing the construction through press roll (10) to remove excess water wand then to dryers for further evaporating the moisture from the paper web to produce a paper web containing the polymeric film with security feature(s). 2. A method of making a security paper having one or more security features at precise locations within the paper by using polymeric film (8) as a carrier for the security feature(s) and incorporating the polymeric film (8) containing the security feature(s) during the paper making process characterised by providing a continuous web of polymeric film (8) with the security feature(s), wherein the polymeric film is applied to the surface of a wet paper pulp web during a twin former process of paper making comprising the following steps: a. forming a first ply of wet paper web by a first former on a continuous moving belt (11); b. layering a continuous web of preformed polymeric film (8) embedded/embossed/printed with security feature^) onto the first ply of the wet paper web with the help of a guide roll (16); c. forming a second ply of wet paper web on the side of the polymeric film (8) remote from the first ply of wet paper web by a second former (14); d. passing the construction through a press section (19) to remove excess water and then to dryers for further evaporating the moisture from the paper web to produce a paper web containing the polymeric film with security feature(s). 3. A method according to claim 1 or claim 2 wherein the security feature(s) is/are provided by a polymeric film which is a cold water soluble film that dissolves and is absorbed into the pulp fibres of the paper web during the paper making process. 4. A method according to claim 1 or claim 2 wherein the security feature(s) is/are provided by a polymeric film which is a hot water soluble film that remains intact and adheres to the paper web during the paper making process. 5. A method according to claim 1 or claim 2 wherein the security feature(s) is/are provided by a polymeric film which is a non soluble hydrophilic film that remains intact and adheres to the paper web during the paper making process. 6. A method according to claim 1 or claim 2 wherein the security feature(s) is/are provided by a polymeric film which is a non soluble non hydrophilic film that remains intact in the paper web during the paper making process. 7. A method according to claim 1 or claim 2 the security feature(s) is/are provided by a polymeric film which is a combination of cold and hot water soluble films wherein the cold water soluble film dissolves and is absorbed into the pulp fibres of the paper web and the hot water soluble film remains intact and adheres to the paper web. 8. A method according to claim 7 wherein the security feature(s) is/are contained in the hot water soluble film. 9. A method according to claim 1 or claim 2 wherein the security feature(s) is/are provided by a polymeric film which is a combination of cold and non soluble hydrophilic films wherein the cold water soluble film dissolves and is absorbed into the pulp fibres of the paper web and the non soluble hydrophilic film remains intact and adheres to the paper web. 10. A method according to claim 9 wherein the security feature(s) is/are contained in the non soluble hydrophilic film. 11. A method according to claim 1 or claim 2 wherein the security feature(s) is/are provided by a polymeric film which is a combination of cold and non soluble non hydrophilic films wherein the cold water soluble film dissolves and is absorbed into the pulp fibres of the paper web and the non soluble non hydrophilic film remains intact in the paper web. 12. A method according to claim 11 wherein the security feature(s) is/are contained in the non soluble non hydrophilicfilm. 13. A method according to claim 1 or claim 2 wherein the security feature(s) is/are provided by a polymeric film which is a cold water soluble film inserted/cast/coated with hot water soluble film strips or non soluble hydrophilicfilm strips or vice versa. 14. A method according to claim 1 or claim 2 wherein the security feature(s) is/are provided by a polymeric film which is in the form of a matrix wherein one or more polymeric films or PVA threads are inter-woven into a matrix by warp and weft method. 15. A method according to claim 1 or claim 2 wherein 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. 16. A method according to claim 13 or 14 or wherein the width/size of the polymeric film strips range from 3 mm to 15 mm, preferably from 4 mm to 10 mm, more preferably from 5 mm to 7 mm. 17. A method according to claim 14 wherein the size of the PVA thread range from 50deniersto 1000deniers, preferably 150 deniers to 700 deniers, more preferably from 300 deniers to 500 deniers. 18. A method according to claim 1 or 2 wherein the polymeric film includes at least one film containing the security feature(s) that remains intact between first and second paper webs during the paper making process. 19. A method according to claim 1 or 2 wherein the polymeric film includes at least one film that dissolves and is absorbed into the pulp fibres of the first and/or second paper webs. 20. A method according to claim 1 or 2 wherein the polymeric film comprises a combination of at least two films wherein at least one film is soluble at a lower temperature than the other film. 21. A method according to claim 1 or 2 wherein the water soluble film comprises at least one cold water soluble film and at least one hot water soluble film where the security feature(s) is/are provided by the hot water soluble film. 22. A method according to claims 1 to 20 wherein one or more polymeric films is perforated. 23. Security paper made by the method according to any preceding claim. 24. Security paper according to claim 23 wherein the carrier polymeric film is incorporated into the fibres of the paper during the cylinder mould process of paper making. 25. Security paper according to claim 23 wherein the carrier polymeric film is incorporated between two webs of the paper during the twin former process of paper making. 26. Security paper according to any of claims 22 to 25 wherein the polymeric film is a water soluble film made from materials selected from the group comprising polyvinyl alcohol copolymer ionomers, polyvinyl alcohol homopolymer, non - ionomeric poly vinyl alcohol polymer, polymethacrylate., polyvinyl alcohol, polyacrylamide, polymethacrylamide, polyacrylic acid, polymethacrylic acid, polyurethane and edible film forming materials like 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. The cellulose derivatives used are methyl cellulose, hydroxy propyl cellulose, hydroxy propyl methyl cellulose, hydroxy propyl ethyl cellulose, hydroxy ethyl cellulose, carboxy methyl cellulose. 27. Security paper according to any of the claims 23 to 25 wherein the polymeric film is a non soluble non hydrophilic film 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). 28. Security paper according to any of the claims 23 to 25 wherein the polymeric film is a non soluble non hydrophilic film made from biodegradable materials such as PLA (Poly Lactic Acid), PHA (polyhydroxyalkanoic acid), thermoplastic starch materials or biodegradable polyesters such as ecoflex. 29. Security paper according to any of claims 23 to 28 wherein the polymeric film has a thickness ranging from 5 microns to 150 microns, preferably from 10 microns 70 microns, more preferably from 15 microns to 35 microns. 30. Security paper according claim 25 wherein the paper comprises at least two plies. 31. Security paper according to claim 25 having a polymeric film containing the security feature(s) between the plies. 32. Security paper according to any of claims 23 to 31 wherein the security feature(s) are selected from the group comprising micro-printed text, logos, metallised/demetallised particles/fibres, bar-codes, watermarks, nano-parti- des, micro-taggants, DNA (synthetic, natural), UV, PCR, computer, machine readable, RFID devices.
Patentansprüche 1. Verfahren zur Herstellung eines Sicherheitspapiers, das ein oder mehrere Sicherheitsmerkmale an exakten Stellen innerhalb des Papiers aufweist, unter Verwendung einer Polymerfolie (8) als Träger für das (die) Sicherheitsmerk-mal(e), durch Einarbeiten der Polymerfolie (8), die das (die) Sicherheitsmerkmal(e) enthält, während des Papierherstellungsprozesses, dadurch gekennzeichnet, dass eine kontinuierliche Bahn aus einer Polymerfolie (8) mit dem (den) Sicherheitsmerkmal(en) bereitgestellt wird, wobei die Polymerfolie (8) während eines Rundsieb-Papier-herstellungsprozesses auf die Oberfläche einer Papierzellstoffbahn aufgetragen wird, die folgenden Schritte umfassend: a. Füllen eines Troges (2) mit einer Zellstoff-Wasser-Suspension; b. Ausbilden eines nassen Papierzellstoffbettes auf einer Außenfläche eines rotierenden Zylinders (1), das mit einem Drahtgewebe bedeckt ist; c. Schichten einer kontinuierlichen Bahn aus vorgeformter Polymerfolie (8), in bzw. auf die ein (mehrere) Si-cherheitsmerkmal(e) eingebettet/geprägt/gedruckt sind, auf die Oberfläche des nassen Papierzellstoffbettes an einer Gautschwalze (7); d. Leiten des Aufbaus durch Saugkästen (9), um überschüssiges Wasser aus dem nassen Papierzellstoffbett zu entfernen; e. Leiten des Aufbaus durch eine Presswalze (10), um überschüssiges Wasser zu entfernen, und dann zu Trocknern, um noch mehr Feuchtigkeit aus der Papierbahn zu entfernen, um eine Papierbahn zu erzeugen, welche die Polymerfolie mit einem (mehreren) Sicherheitsmerkmal(en) enthält. 2. Verfahren zur Herstellung eines Sicherheitspapiers, das ein oder mehrere Sicherheitsmerkmale an exakten Stellen innerhalb des Papiers aufweist, unter Verwendung einer Polymerfolie (8) als Träger für das (die) Sicherheitsmerk-mal(e), durch Einarbeiten der Polymerfolie (8), die das (die) Sicherheitsmerkmal(e) enthält, während des Papierherstellungsprozesses, dadurch gekennzeichnet, dass eine kontinuierliche Bahn aus einer Polymerfolie (8) mit dem (den) Sicherheitsmerkmal(en) bereitgestellt wird, wobei die Polymerfolie während eines Doppelsieb-Papier-herstellungsprozessesauf die Oberfläche einer nassen Papierzellstoffbahn aufgetragen wird, diefolgenden Schritte umfassend: a. Ausbilden einer ersten Lage aus einer nassen Papierbahn anhand eines ersten Formers auf einem Endlosförderband (11); b. Schichten einer kontinuierlichen Bahn aus vorgeformter Polymerfolie (8), in bzw. auf die ein (mehrere) Si-cherheitsmerkmal(e) eingebettet/geprägt/gedruckt sind, auf die erste Lage aus der nassen Papierbahn mithilfe einer Führungsrolle (16); c. Ausbilden einer zweiten Lage aus nasser Papierbahn auf der Seite der Polymerfolie (8), die der ersten Lage aus nasser Papierbahn entgegengesetzt ist, mit einem zweiten Former (14); e. Leiten des Aufbaus durch einen Pressenabschnitt (19), um überschüssiges Wasser zu entfernen, und dann zu Trocknern, um noch mehr Feuchtigkeit aus der Papierbahn zu entfernen, um eine Papierbahn zu erzeugen, welche die Polymerfolie mit einem (mehreren) Sicherheitsmerkmal(en) enthält. 3. Verfahren nach Anspruch 1 oder Anspruch 2, wobei das (die) Sicherheitsmerkmal(e) von einer Polymerfolie bereitgestellt wird (werden), bei der es sich um eine in kaltem Wasser lösliche Folie handelt, die sich während des Papierherstellungsprozesses auflöst und in den Zellstoffasern der Papierbahn absorbiert wird. 4. Verfahren nach Anspruch 1 oder Anspruch 2, wobei das (die) Sicherheitsmerkmal(e) von einer Polymerfolie bereitgestellt wird (werden), bei der es sich um eine in warmem Wasser lösliche Folie handelt, die während des Papierherstellungsprozesses intakt bleibt und an der Papierbahn haftet. 5. Verfahren nach Anspruch 1 oder Anspruch 2, wobei das (die) Sicherheitsmerkmal(e) von einer Polymerfolie bereitgestellt wird (werden), bei der es sich um eine in Wasser nicht lösliche hydrophile Folie handelt, die während des Papierherstellungsprozesses intakt bleibt und an der Papierbahn haftet. 6. Verfahren nach Anspruch 1 oder Anspruch 2, wobei das (die) Sicherheitsmerkmal(e) von einer Polymerfolie bereitgestellt wird (werden), bei der es sich um eine in Wasser nicht lösliche, nicht hydrophile Folie handelt, die während des Papierherstellungsprozesses in der Papierbahn intakt bleibt. 7. Verfahren nach Anspruch 1 oder Anspruch 2, wobei das (die) Sicherheitsmerkmal(e) von einer Polymerfolie bereitgestellt wird (werden), bei der es sich um eine Kombination aus in kaltem und in warmem Wasser löslichen Folien handelt, wobei sich die in kaltem Wasser lösliche Folie auflöst und in den ZellstoffFasern der Papierbahn absorbiert wird, und die in warmem Wasser lösliche Folie intakt bleibt und an der Papierbahn haftet. 8. Verfahren nach Anspruch 7, wobei das (die) Sicherheitsmerkmal(e) in der in warmem Wasser löslichen Folie enthalten ist (sind). 9. Verfahren nach Anspruch 1 oder Anspruch 2, wobei das (die) Sicherheitsmerkmal(e) von einer Polymerfolie bereitgestellt wird (werden), bei der es sich um eine Kombination aus in kaltem Wasser löslichen und nicht löslichen hydrophilen Folien handelt, wobei sich die in kaltem Wasser lösliche Folie auflöst und in den Zellstofffasern der Papierbahn absorbiert wird, und die nicht lösliche hydrophile Folie intakt bleibt und an der Papierbahn haftet. 10. Verfahren nach Anspruch 9, wobei das (die) Sicherheitsmerkmal(e) in der nicht löslichen hydrophilen Folie enthalten ist (sind). 11. Verfahren nach Anspruch 1 oder Anspruch 2, wobei das (die) Sicherheitsmerkmal(e) von einer Polymerfolie bereitgestellt wird (werden), bei der es sich um eine Kombination aus in kaltem Wasser löslichen und weder löslichen noch hydrophilen Folien handelt, wobei sich die in kaltem Wasser lösliche Folie auflöst und in den Zellstofffasern der Papierbahn absorbiert wird, und die weder lösliche noch hydrophile Folie in der Papierbahn intakt bleibt. 12. Verfahren nach Anspruch 11, wobei das (die) Sicherheitsmerkmal(e) in der weder löslichen noch hydrophilen Folie enthalten ist (sind). 13. Verfahren nach Anspruch 1 oder Anspruch 2, wobei das (die) Sicherheitsmerkmal(e) von einer Polymerfolie bereitgestellt wird (werden), bei der es sich um eine in kaltem Wasser lösliche Folie handelt, in bzw. auf die in warmem Wasser lösliche Folienstreifen oder nicht lösliche Folienstreifen eingefügt/gegossen/geschichtet sind oder umgekehrt. 14. Verfahren nach Anspruch 1 oder Anspruch 2, wobei das (die) Sicherheitsmerkmal(e) von einer Polymerfolie bereitgestellt wird (werden), die in Form einer Matrix vorliegt, bei der eine oder mehrere Polymerfolien oder PVA-Fäden anhand eines Kette-Schuss-Verfahrens zu einer Matrix verwoben sind. 15. Verfahren nach Anspruch 1 oder Anspruch 2, wobei das (die) Sicherheitsmerkmal(e) durch eine Kombination aus Polymerfolien, die Streifen aus Folien beinhalten, geliefert werden, wobei die Streifen in bzw. auf eine andere Folie eingefügt/gegossen/geschichtet sind, um Sicherheitsmerkmale zu liefern, die in/auf die Folienstreifen eingebet-tet/gedruckt sind. 16. Verfahren nach Anspruch 13 oder 14, wobei die Breite/Größe der Polymerfolienstreifen im Bereich von 3 mm bis 15 mm, vorzugsweise von 4 mm bis 10 mm, stärker bevorzugt von 5 mm bis 7 mm liegt. 17. Verfahren nach Anspruch 14, wobei die Größe des PVA-Fadens im Bereich von 50 Denier bis 1000 Denier, vorzugsweise 150 Denier bis 700 Denier, stärker bevorzugt von 300 Denier bis 500 Denier liegt. 18. Verfahren nach Anspruch 1 oder 2, wobei die Polymerfolie mindestens eine Folie beinhaltet, die das (die) Sicher-heitsmerkmal(e) enthält und die während des Papierherstellungsprozesses zwischen einer ersten und einer zweiten Papierbahn intakt bleibt. 19. Verfahren nach Anspruch 1 oder 2, wobei die Polymerfolie mindestens eine Folie beinhaltet, die sich auflöst und in den Zellstofffasern der ersten und/oder der zweiten Papierbahn auflöst. 20. Verfahren nach Anspruch 1 oder 2, wobei die Polymerfolie eine Kombination aus mindestens zwei Folien umfasst, wobei mindestens eine Folie bei einer niedrigeren Temperatur löslich ist als die andere Folie. 21. Verfahren nach Anspruch 1 oder 2, wobei die in Wasser lösliche Folie mindestens eine in kaltem Wasser lösliche Folie und mindestens eine in warmem Wasser lösliche Folie umfasst, wobei das (die) Sicherheitsmerkmal(e) von der in warmem Wasser löslichen Folie bereitgestellt wird (werden). 22. Verfahren nach Anspruch 1 bis 20, wobei eine oder mehrere Polymerfolien perforiert sind. 23. Sicherheitspapier, das anhand des Verfahrens nach einem der vorangehenden Ansprüche hergestellt worden ist. 24. Sicherheitspapier nach Anspruch 23, wobei der Träger aus Polymerfolie während des Rundsieb-Papierherstellungsprozesses in die Fasern des Papiers eingearbeitet worden ist. 25. Sicherheitspapier nach Anspruch 23, wobei der Träger aus Polymerfolie während des Doppelsieb-Papierherstellungsprozesses zwischen zwei Bahnen des Papiers eingearbeitet worden ist. 26. Sicherheitspapier nach einem der Ansprüche 22 bis 25, wobei die Polymerfolie eine in Wasser lösliche Folie ist, die aus Materialien besteht, die ausgewählt sind aus der Gruppe bestehend aus Polyvinylalkoholcopolymeriono-meren, Polyvinylalkoholhomopolymer, nichtionomerem Polyvinylalkoholpolymer, Polymethacrylat, Polyvinylalkohol, Polyacrylamid, Polymethacrylamid, Polyacrylsäure, Polymethacrylsäure, Polyurethan und Materialien, die essbare Folien bilden, wie Polyethylenglycol, Polyvinylpyrrolidon, proteinhaltigen Bindemitteln wie Gelatine, modifizierten Gelatinen wie Phthaloylgelatine, Polysacchariden wie Stärke, Gummi arabicum, Pullulan und Dextrin und wasserlöslichen Cellulosederivaten oder Kombinationen davon. Die verwendeten Cellulosederivate sind Methylcellulose, Hydroxypropylcellulose, Hydroxypropylmethylcellulose, Hydroxypropylethylcellulose, Hydroxyethylcellulose, Carb-oxymethylcellulose. 27. Sicherheitspapier nach einem der Ansprüche 23 bis 25, wobei die Polymerfolie eine nicht lösliche, nicht hydrophile Folie ist, die ausgewählt ist aus PP (Polypropylen), PE (Polyethylen), LDPE (Polyethylen niedriger Dichte), HDPE (Polyethylen hoher Dichte), LLDPE (linearem Polyethylen niedriger Dichte), HIPS (schlagfestem Polystyrol), HM-HDPE (hochmolekularem Polyethylen hoher Dichte), BOPP (biaxial orientiertem Polypropylen). 28. Sicherheitspapier nach einem der Ansprüche 23 bis 25, wobei die Polymerfolie eine nicht lösliche, nicht hydrophile Folie ist, die aus biologisch abbaubaren Materialien wie PLA (Polymilchsäure); PHA (Polyhydroxyalkansäure), thermoplastischen Stärkematerialien oder biologisch abbaubaren Polyestern wie Ecoflex besteht. 29. Sicherheitspapier nach einem der Ansprüche 23 bis 28, wobei die Polymerfolie eine Dicke im Bereich von 5 Mikrometern bis 150 Mikrometern, vorzugsweise von 10 Mikrometern bis 70 Mikrometern, stärker bevorzugt von 15 Mikrometern bis 35 Mikrometern aufweist. 30. Sicherheitspapier nach Anspruch 25, wobei das Papier mindestens zwei Lagen umfasst. 31. Sicherheitspapier nach Anspruch 25, mit einer Polymerfolie, die das (die) Sicherheitsmerkmal(e) zwischen den Lagen enthält. 32. Sicherheitspapier nach einem der Ansprüche 23 bis 31, wobei das (die) Sicherheitsmerkmal(e) ausgewählt ist (sind) aus der Gruppe bestehend aus mikrogedrucktem Text, Logos, metallisierten/demetallisierten Teilchen/Fasern, Strichcodes, Wasserzeichen, Nanoteilchen, Mikrotaggants, DNA (synthetisch, natürlich), UV-, PCR-, computer-, maschinenlesbaren, RFID-Vorrichtungen.
Revendications 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/im primées 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/im-primées 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.
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader’s convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.
Patent documents cited in the description • US 4552617 A [0005]
Claims (9)
- FOKöZ0TT':prm^iÁQÚ papír és az szelei mmmmM isénysontsk t* kijárás a papíron MŰ pontos helyeken ágy vagy több biztonsági jellemzővel mndelkező biztonsági papír gyártására oly módon, hogy a biztonsági jeííémzőCk) számára: hordozóként polimer Ilimet (8) alkalmaznék,: és a biztonsági )eHemz6(ke)t tartalmazó polimer filmet (8) a papírgyártási eljárás során bedolgozzuk, azzal jellemezve,, hogy rend el kezesre bocsátjuk a biztonsági jellemzővel (jellemzőkkel) ellátott polimer film (8) egy folytonos szalagját, amely polimer filmet (8) felvisszük egy papirpépuszalag felületére hengerazitls papirgyártásí eljárás során, amely a következő lépéseket fegíafja magában; a) feltöltünk egy kádat (2) pépvizes zaggyal; b) léfrebpzunk egy nedves paplrpép ágyat egy széaszovettel borított, forgó henger (i) külső felületén; c) rárétegezzűk egy belgyazotfdombornyomótt/nyömtafött biztonsági jellemzővel (jellemzőkkel) ellátott előformázott polimer fflm (8) egy folytonos szalagját a nedves pápirpép ágy felületére egy gancshédgernél (7); d| átengedjük; a konstrukciót szívoszekrényeken ff ja felesleges víznek a nedves papírpép ágyról való eltávolítása:céljából; e) átengedjük a konstrukciót egy préshengeren (10) a felesleges víz eltávolítása céljából, majd szárítókhoz továbbítjuk a nedvosségnek: * papírszalagból való további eipirpiogtatásá: céljából, hogy olyan papírszalagot állítsunk elő, amely tartalmazza a biztonsági jellemzővel {jellemzőkkel) ellátott polimer filmet, p. Eljárás a: papíron belüli pontos helyeken egy vagy több biztonsági jellemzővel rendéikező biztonsági papír gyártására oly módod) bogy a biztonsági jellemzőik) számára íhordd^SkÉPt polimér fűmet ($) alkalmazunk, és a biztonsági jeilemzö(ke)t tartalmazó polimer Ümet (ij a papírgyártási eljárás során bedolgozzuk, azzal 'Jellemezve, hogy réndelkezésm: bocsátjuk á: biztonsági jéllemzivol (jellemzőkkel) eíSátott polimer film (8)¾ egy folytonos szalagját, amely ipóllmér iflimét felvísszük egy paplrpép-szaiag feiüfetére ikerszltas papírgyártási: eljárás:során, amely a kővetkező lépéseket flglaija magában; a) létrehozunk egy első réteg nedves papírszalagot egy első japképzoyaj: egy végtelenített száíiltőhevederen (11); b) rárétegezzűk egy ibeágyazett/dpmpornyomotf^^nyomtatott biztonsági jelfomzdveí (jellemzőkké!) éíl atőtt előformázott pofi mer film (8) egy folytonos szalagját a nedves papírszalag első rétégére egy vazetoheager (ló) segítségivei; :£§ iétf®ihözu«k:' lÉgy wétódík. réteg mimé- papirszaíagot a polimer fiimnvk (Bj m első réteg nedves psprsMfegtél távolpbb eső gidaién egy második IPpMpiovéí d) átengedjük a konstrukciót egy présszakaszon (ii) a; felesleges víznek az eitáveiítisa oéíjibok r^Jdi máríWUftm to#feÉÉ$$c :¾ nedvességnek a eapítszélághól való további el párolog tatása céljából, hogy olyan papimai aget állítsunk elő, amely tárná imaóra a biztonsági jellemzővel (jellemzőkkel) ellátott polimer filmet.
- 3. Az 1, vagy a 2, igénypont szerinti eljárás, amelynél a biztonság; jeilemzé(ke)t olyan polimer líra bíztosíip, amely égy hideg vízben oldódó film, amely a paprgyérilsi eljárás során féíoidédík, és abszorbeálodIk a paplrsxaiai: péprdstjaibav
- 4, Az 1. vagy a 2, igénypont szerinti eljárás, amelynél a biztonsági jellemzői kéjt olyan polimer film biztosítja, amely egy forrd vízben oldódd tiím, amely a papírgyártási: eijátéSidórin ép marad, és; hpxxátapad a papírszalaghoz. f, Az l. vagy a 2, Igénypont szerinti eljárás, amelynél á biztonsági jeiíomzö{:kejt olpb ípollmpr film biztosítja,: amely egy nem oldódó, hidrofil fiira, amely a papírgyártási dijirlsgorán ép marad:, és hozzátapad a. papírszalaghoz, i: Az 1, vagya 2. igénypont szeriéi eljárás, amelynél a biztonsági jellemzői kéjt olyan polimer film hizfosíéiaj amely egy: nem oidódd, nem hidrofil film, amely a papírgyártási elárás aorán ép marad a papírszalagban,:2, Az I, vagy a 2> igéiíypont szerinti eljárás, amelynél a liztonságí pllemzd|kejí olyan polimer film biztosítja, amely egy biieg is egy forró vízben oldódó fim kombinációja, amelyek közül a hideg vízben oldódd film feloldódik, ás abszofbeáfódlk a papírszalag péprostjaiba, a forró vízben oldódó film pedig ép marad, és hozzátapad a papírszalaghoz, 8. A % igénypont szerinti eljárás, amelynél a biztonsági jellemző(ke)t a forró vízben oldódó film tartalmazza magában,
- 9. Az 1, vagy a 2. igénypont szerinti eljárás, amelynél a biztonsági fpíiemzőfkejt olyan polimer film biztosítja, amely egy hideg és egy nem Oldódó, hidrofil film kombinációja, amelyek közül a hideg vízben oldódó film feloldódik, és ahszorbeákkiík a papírszalag péprostjaiba, a nem oldódó, hidrofil film pedig ép marad, és hozzátapad a papírszalaghoz, j;ö, A f, Igénypont szerinti: eljárás* amelynél a biztonsági jeíiemzo(kejf á nem oldódó, hidrofil film tartalmazza magiban, ií, Az vagy a: 2> igénypont szerlntf éSjiris, ameíynéí a biztonsági jéílemzó(kejt olyan polimer Ifm biztosítja, amely egy hideg vízben oldódó és egy nem oldódó, nem ihidrohi ,f|:im kombinációja, amelyek közül a hideg vízben oldódó film feloldódik, ás aPszorbéáiÓdlk a papírszalag péprostjaiba, a nem oldódó, nem hidrofil film pedig ép marad a papírszalagban,
- 12. A ÍL jgénypoéf: szerinti eljárás, amelynél: a·. biztonsági jellemzó(ke)t a nem oldódó, nem hidrofil film MftéMm-m magában, :;t3,::fe 1» vagy 3 2, tgénypmt sserindéiiirás,. ameslyplíifi· &iiti?t§lfi jeliemzICkejt egy polimer film blztosílp,: amely egy Hűti vízben oldódó: fiin% vízben: oldódó ilmesíkok vagy nem oldódó* hidrofil iímesikok mnmk vice Versá:. όΑ,,Αζ1, vagy a: 2. igénypont szedni eljárás, amelynél a biztonsági jeMemzö{ke)t: egy olyan mátrix formájában lévő polimer óim biztosítja:, amelyben agy vagy több polimer film vagy faszái Mm és yettpk: eljárással mátrixsM: van szőve:,: IS, Az t, vagy a 2, igénypaní szaridfi ilpras, amelynél á biztonsági::je!lemzö{ke)t polimer filmek kömbináeloja nyújtja:, amelyek mapukbám amely himesikok Polliesztéssoí^öntéssoiyrétegzéssoi vannak, felhordva egy másik filmre a fitaösikokba beágyazött / a fltecslkakra nyomtatott biztonsági jeílenMÓk biztosítása cipfeiL lé, A 13, vagy a 14. igénypont szerinti eljárás, amelynél a polimer filmcsíkok szélessége/mérete 3 mm-töi 15 mm~igf előnyös módon 4 mm-tol iö mm io, még előnyösebb módon S mm-toi ? rnm~ig terjed. 17. A 14, igénypont szerinti eljárás, amelynél a PVA-szál mérete 50 denlertől liQÖ denlerig, előnyös módon ISO elemértől 700 deníertg, még előnyösebb módon 300 deniertői 500 danierig terjedi
- 18. Az 1, vagy a 2> igénypont szerinti eljárás, amelynél a polimer film magában foglal legalább egy,. a biztonsági jeliemz|(kejt tarbáimazó filmet, amely a papírgyártási eljárás során egy első és egy második papírszalag
- 19. Az 1. vagy a 2, igénypont: szerinti eljárás, amelynél; a polimer óim magában foglal legalább egy filmet, amely fébldödik> és abszorbeálódlk az első ésfyagy a második pa pl rszaiag péprést)a i ba. 20< Az 1, vagy a I, igéoyppnt szerinti eljárás:, amelynél a polimer film legalább kit film kombinációját foglalja magáiban, amelyek közűi legalább egy film alacsonyabb hőmámékleten oldódik mint a másik iilffk
- 21, Az :L vagy a 2, igénypont szerinti eljárás, amelynél a vízben oldódó Óim legalább egy hideg vízben tet «te: óf.d#fíő ilmei legiat magiban, ahol a biztonsági jelláfT^CN^ »:^ró vitte oldódó fíím biztosítja.
- 22, Az 1-20. igény pontok szerinti elírás, amelynél egy vagy tdbb polimer §lm perforálva van. 23< Biztonsági papír, amely az előző igénypontok bármelyike szerinti eljárással kerül előállításra, 24, A 2.3. igénypont szerinti biztonsági papír, amelyben a hordozó polimer film bongerszltás papírgyártási eljárás sorén kerül bedolgozásra a papír rostjaiba, 25, A 23; igénypont szerinti biztonsági papír, amelyben a borddzo polimer film íkerszitás papírgyártási eljárás során kerül bedolgozásra a papír kit ázsiaija közé. I|:> A 22 -25, igénypontok bármelyike szerinti biztonság* papír, amelyben a polimer film egy vízben oldódó film, amely az álibbiakból készük a polKvmijyaíkohbíf· kopolimec ionomerek, poíí(ytni!-alkohoi) hömópóimer, nem lonomer poíí(víml-a!kohoí) polimer, poiimétakrilit, polivmihalkohol, pllakriiamíd, poilmetokniamid, poiíakrlisav, gollmetakfílsav, pgiíuretán által alkotott csoportból kiválasztott anyagok és étkezési ilmképzo anyagok, mint például polietilén-glikoí, póllviniíspífrolidom feherjeszerö kotőanyagök, úgymint zselatin, módosítói; zselatinok, úgymint; ftaioil-zseiatin, pöilszédhanpok, úgymint keményítő, gumiárábikumf puliuián Is öextrsn, valamint vízoldható celíuíőzszáfmazékok vagy ezek kombinációja, az alkalmazott csifuiózszármazékok pedig: metii-cellulóz, hidroxi-propü-ceíiuicz, hidroxs-propil-metii-cellulóz, hidroxl-propíi·efibceikvőz, hidroxl-etíi-cellulóz, és karboxi-metíl-ceíkilöz. 27, A 273-25. Igénypontok bármelyike szerinti biztonsági papír, amelyben a polimer film egy nem oldódó, nem hidrofil film, amely a PP (polipropilén), a Pb (polietilén), az LDPE (kis sűrűségű polietilén), a HDPE (nagy sűrűségű polietilén), az ILOPE (lineáris, k-s sűrűségű polietilén), a HIPS (ütésálló polisztircl), a HMHDFE (nagy molekuiat.Ornegű, nagy sűrűségű polietilén) és a 80PP (bsaxiáissnn orientált polipropilén) közül kerül kiválasztásra. 2β, A 23-25, igénypontok bármelyike szerinti biztonsági papír, amelyben a polimer film egy nem oldható, nem hidrofil film, amely biológiailag lebontható anyagokból készük úgymint PIA -(polltejsav), PHA (polihidraxt-aíkánsav),. hőre iJgyaío keményítő anyagik: vagy biológiailag lebopthatá poliészterek, úgymint ecotiék. 29, & 23-28, igényppntok bármelyike szerinti biztonsági papír, amilyben a polimer film vastagsága S mikrontól ISO mikronig, előnyős módon 10 miktonfil 78 mikronig, még előnyösebb módon 18 mikrontól 35 mikronig terjed. 30. A 25, Igénypont szerinti biztonsági papír, amely papír legalább két rétegét foglal magában, 31, A 25. igénypont szerinti biztonsági papír, amely rendelkezik egy, a biztonsági jeiiemzö{ke)t a rétegek között tartalmazó polimer fűmmel, 32. A 23-31. igénypontok bármelyike szerinti biztonsági papír, amelyben a biztonság! jeliemzŐ(k) mikronyormatoit szöveg,, lógók, fémbevonatú/fémmentesített szemosék/szálak, vonalkódok, vízjelek, nanoszemcsék, rnikrojeiolők, DNS (szintetikus, természetes), UV, PCR (polimeréi láncreakció), számítógéppel, géppel olvasható és RHD elemek által alkotott csoportból kerül(nek) kiválasztásra:,
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US (1) | US20100193146A1 (hu) |
EP (1) | EP1871952B1 (hu) |
AP (1) | AP2007004187A0 (hu) |
HU (1) | HUE034690T2 (hu) |
PL (1) | PL1871952T3 (hu) |
RU (1) | RU2409473C2 (hu) |
SI (1) | SI1871952T1 (hu) |
WO (1) | WO2006117804A2 (hu) |
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AP2007004222A0 (en) | 2005-04-15 | 2007-10-31 | Arrow Coated Products Ltd | Self destructive irreversible security packaging film |
WO2007138614A1 (en) * | 2006-05-25 | 2007-12-06 | Arrow Coated Products Ltd | A water soluble film based matrix to collect samples extracted from living species |
ES2826438T3 (es) | 2009-06-26 | 2021-05-18 | Cj Cheiljedang Corp | Composiciones de PHA que comprenden PBS y PBSA y método para producir las composiciones |
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 |
ES2879250T3 (es) | 2012-06-05 | 2021-11-22 | Cj Cheiljedang Corp | Mezclas poliméricas biodegradables |
IN2012MU02939A (hu) * | 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 |
US11091632B2 (en) | 2015-11-17 | 2021-08-17 | Cj Cheiljedang Corporation | Polymer blends with controllable biodegradation rates |
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 |
ES2344407T3 (es) * | 2001-10-09 | 2010-08-26 | Arrow Coated Products Limited | Procedimiento de fabricacion de un sistema de pelicula soluble en el agua embebida. |
WO2004076198A1 (de) * | 2003-02-27 | 2004-09-10 | Landqart | Mehrschichtlaminat |
DE502005008885D1 (de) * | 2004-12-23 | 2010-03-04 | Landqart | N zu dessen herstellung |
-
2006
- 2006-03-22 PL PL06766259T patent/PL1871952T3/pl unknown
- 2006-03-22 AP AP2007004187A patent/AP2007004187A0/xx unknown
- 2006-03-22 RU RU2007135130/12A patent/RU2409473C2/ru not_active IP Right Cessation
- 2006-03-22 SI SI200632208T patent/SI1871952T1/sl unknown
- 2006-03-22 HU HUE06766259A patent/HUE034690T2/hu unknown
- 2006-03-22 US US11/886,990 patent/US20100193146A1/en not_active Abandoned
- 2006-03-22 EP EP06766259.3A patent/EP1871952B1/en active Active
- 2006-03-22 WO PCT/IN2006/000100 patent/WO2006117804A2/en active Application Filing
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WO2006117804B1 (en) | 2007-02-22 |
EP1871952B1 (en) | 2017-09-13 |
PL1871952T3 (pl) | 2018-02-28 |
WO2006117804A3 (en) | 2007-01-11 |
SI1871952T1 (sl) | 2017-12-29 |
WO2006117804A2 (en) | 2006-11-09 |
US20100193146A1 (en) | 2010-08-05 |
AP2007004187A0 (en) | 2007-10-31 |
RU2409473C2 (ru) | 2011-01-20 |
RU2007135130A (ru) | 2009-04-27 |
EP1871952A2 (en) | 2008-01-02 |
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