EP3178659B1 - Procédé de fabrication de papier avec des sections transparentes, et papier avec des sections transparentes fabriqué selon ce procédé - Google Patents
Procédé de fabrication de papier avec des sections transparentes, et papier avec des sections transparentes fabriqué selon ce procédé Download PDFInfo
- Publication number
- EP3178659B1 EP3178659B1 EP15829700.2A EP15829700A EP3178659B1 EP 3178659 B1 EP3178659 B1 EP 3178659B1 EP 15829700 A EP15829700 A EP 15829700A EP 3178659 B1 EP3178659 B1 EP 3178659B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- paper
- transparent portions
- portions
- monohydric
- printing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 38
- 238000007639 printing Methods 0.000 claims description 26
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical class C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 claims description 17
- 150000005846 sugar alcohols Polymers 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 10
- 239000003960 organic solvent Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 125000003700 epoxy group Chemical group 0.000 claims description 5
- 238000005470 impregnation Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 41
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 16
- 239000000203 mixture Substances 0.000 description 14
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 9
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 239000003822 epoxy resin Substances 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- SEFYJVFBMNOLBK-UHFFFAOYSA-N 2-[2-[2-(oxiran-2-ylmethoxy)ethoxy]ethoxymethyl]oxirane Chemical compound C1OC1COCCOCCOCC1CO1 SEFYJVFBMNOLBK-UHFFFAOYSA-N 0.000 description 2
- GTACSIONMHMRPD-UHFFFAOYSA-N 2-[4-[2-(benzenesulfonamido)ethylsulfanyl]-2,6-difluorophenoxy]acetamide Chemical compound C1=C(F)C(OCC(=O)N)=C(F)C=C1SCCNS(=O)(=O)C1=CC=CC=C1 GTACSIONMHMRPD-UHFFFAOYSA-N 0.000 description 2
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 2
- 101710130081 Aspergillopepsin-1 Proteins 0.000 description 2
- 102100031007 Cytosolic non-specific dipeptidase Human genes 0.000 description 2
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- -1 alkyl phenol monoglycidyl ether Chemical compound 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- BBBUAWSVILPJLL-UHFFFAOYSA-N 2-(2-ethylhexoxymethyl)oxirane Chemical compound CCCCC(CC)COCC1CO1 BBBUAWSVILPJLL-UHFFFAOYSA-N 0.000 description 1
- YSUQLAYJZDEMOT-UHFFFAOYSA-N 2-(butoxymethyl)oxirane Chemical compound CCCCOCC1CO1 YSUQLAYJZDEMOT-UHFFFAOYSA-N 0.000 description 1
- UZYFEQIMORYGRW-UHFFFAOYSA-N 2-[(2-tert-butylphenoxy)methyl]oxirane Chemical compound CC(C)(C)C1=CC=CC=C1OCC1OC1 UZYFEQIMORYGRW-UHFFFAOYSA-N 0.000 description 1
- AOBIOSPNXBMOAT-UHFFFAOYSA-N 2-[2-(oxiran-2-ylmethoxy)ethoxymethyl]oxirane Chemical compound C1OC1COCCOCC1CO1 AOBIOSPNXBMOAT-UHFFFAOYSA-N 0.000 description 1
- SHKUUQIDMUMQQK-UHFFFAOYSA-N 2-[4-(oxiran-2-ylmethoxy)butoxymethyl]oxirane Chemical compound C1OC1COCCCCOCC1CO1 SHKUUQIDMUMQQK-UHFFFAOYSA-N 0.000 description 1
- KUAUJXBLDYVELT-UHFFFAOYSA-N 2-[[2,2-dimethyl-3-(oxiran-2-ylmethoxy)propoxy]methyl]oxirane Chemical compound C1OC1COCC(C)(C)COCC1CO1 KUAUJXBLDYVELT-UHFFFAOYSA-N 0.000 description 1
- BNCADMBVWNPPIZ-UHFFFAOYSA-N 2-n,2-n,4-n,4-n,6-n,6-n-hexakis(methoxymethyl)-1,3,5-triazine-2,4,6-triamine Chemical compound COCN(COC)C1=NC(N(COC)COC)=NC(N(COC)COC)=N1 BNCADMBVWNPPIZ-UHFFFAOYSA-N 0.000 description 1
- MECNWXGGNCJFQJ-UHFFFAOYSA-N 3-piperidin-1-ylpropane-1,2-diol Chemical compound OCC(O)CN1CCCCC1 MECNWXGGNCJFQJ-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229920006051 Capron® Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- SJEYSFABYSGQBG-UHFFFAOYSA-M Patent blue Chemical compound [Na+].C1=CC(N(CC)CC)=CC=C1C(C=1C(=CC(=CC=1)S([O-])(=O)=O)S([O-])(=O)=O)=C1C=CC(=[N+](CC)CC)C=C1 SJEYSFABYSGQBG-UHFFFAOYSA-M 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 239000000980 acid dye Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000007774 anilox coating Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 239000000982 direct dye Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/351—Translucent or partly translucent parts, e.g. windows
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41D—APPARATUS FOR THE MECHANICAL REPRODUCTION OF PRINTING SURFACES FOR STEREOTYPE PRINTING; SHAPING ELASTIC OR DEFORMABLE MATERIAL TO FORM PRINTING SURFACES
- B41D3/00—Casting stereotype plates; Machines, moulds, or devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/24—Passports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/29—Securities; Bank notes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/405—Marking
- B42D25/415—Marking using chemicals
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/16—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising curable or polymerisable 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
- D21H21/26—Agents rendering paper transparent or translucent
-
- 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
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/50—Spraying or projecting
Definitions
- the invention relates to the pulp and paper industry, and particularly to the manufacture of paper for producing banknotes, checks, certificates, bills, passports, identity cards, fuel vouchers, entertainment tickets, and other documents requiring protection against counterfeit.
- a method is known ( JP2-127599, 16.05.1990 ) to obtain the imitation of watermarks on paper, in which a liquid composition obtained by mixing paraffin, oil and a saturated fatty acid with a resin solution in an organic solvent is applied onto the paper using a printing method.
- a method is known ( GB1139487, 08.01.1969 ) to obtain the imitation of watermarks, according to which method a composition comprising hexamethoxymethylmelamine, a curing agent and a colorless polar solvent is applied to the paper.
- thermosetting resin in an organic solvent in the presence of a curing agent. It was particularly suggested to use epoxy resins as the thermosetting resin. In this case, after evaporating the solvent and curing the thermosetting resin, transparent portions simulating the watermark are formed on the paper.
- a disadvantage of this technical solution is that the epoxy resins are characterized by a high dynamic viscosity at a temperature of 25°C and, therefore, prepared solutions based on the epoxy resins in organic solvents at a concentration of more than 50% penetrate poorly into the paper structure and, after curing, form a solid film on the surface of the paper, which film creates difficulties in the subsequent printing of these paper portions.
- use of solutions having a concentration of less than 50% does not allow to introduce into the paper a sufficient amount of the resin to provide a desired transparency.
- a problem to be solved by the invention is the preparation of transparent portions on paper without the formation, on a paper surface, of solid films hindering a subsequent printing process.
- the glycidyl ethers of monohydric and polyhydric alcohols are dissolved in an organic solvent in a mass ratio of from 30% to 90%.
- the solutions of the glycidyl ethers of monohydric and polyhydric alcohols in an organic solvent are applied by a printing method onto paper portions of a thickness no more than 80 ⁇ m, which have been produced in the paper during sheet formation on a paper making machine.
- the transparent portions have a shape of geometrical figures, symbols, letters or numbers that are visible in transmitted light.
- printing images are applied onto the paper having the transparent portions.
- printing images are preliminary applied onto the paper, and then the impregnation of the paper is performed to obtain the transparent portions.
- a paper having transparent portions, said paper being manufactured by the claimed method is defined in claim 7.
- These compounds are colorless or pale yellow low-viscous liquids that contain epoxy groups in a mass fraction from 7.5% to 30%, and are well compatible with all known epoxy resin curing agents (hardeners).
- hardeners For example, aliphatic or aromatic polyamines, acid anhydrides, Lewis acids, etc. can be used for their curing. Isopropyl alcohol, ethyl acetate, propyl acetate, methyl ethyl ketone, methyl isobutyl ketone, dimethylformamide, and also their mixtures, etc. are used as the solvents for these compounds.
- a dynamic viscosity of the glycidyl ethers of monohydric and polyhydric alcohols at a temperature of 25°C has to be not more than 150 mPa ⁇ s, or, more preferably, not more than 50 mPa ⁇ s. If their dynamic viscosity at a temperature of 25°C exceeds 150 mPa ⁇ s, when the product is dissolved in an organic solvent in a mass ratio of more than 50%, problems associated with deterioration of penetration of the resulting solution into the paper structure are observed.
- Other compounds containing epoxy groups may be added to the solutions of the glycidyl ethers of monohydric and polyhydric alcohols.
- homooligomeric epichlorohydrin diglycidyl ether, alkyl phenol monoglycidyl ether, tert-butylphenol monoglycidyl ether can be used as these compounds.
- compounds which are soluble in organic solvents, which have luminescence properties when irradiated with UV radiation at an excitation wavelength of 365 nm or 254 nm, and which also have absorption properties in IR region of spectrum may be added to the solutions of the glycidyl ethers of monohydric and polyhydric alcohols.
- the solutions of glycidyl ethers of monohydric and polyhydric alcohols in organic solvents are applied onto predetermined portions of paper by printing methods.
- a deep printing, screen printing or flexographic printing method can be used.
- these solutions can be applied onto paper using anilox rolls having a screen ruling of 60-120 lines/cm 2 and an ink receptivity of 10-24 cm 3 /m 2 .
- the solution viscosity measured on a funnel with an opening diameter of 4 mm should be in the range of 10-35 seconds, or even more preferably, in the range of 10-15 seconds.
- the solutions can be applied onto predetermined portions simultaneously on both sides of the paper.
- Formation of transparent portions after applying the solutions onto the paper by printing methods is performed conventionally in two stages. At a first, shortest stage, evaporation of the solvent and also absorption of the solution into the paper occur. To speed up the process at this stage, it is advisable to heat the paper to a temperature of 85-140°C. In a second stage which is the most durable in time and is fully completed already on the reel or stack, the solution soaked into the paper undergoes a final curing. This stage normally lasts for 3-4 days after applying the solution onto the paper.
- the paper is manufactured on a cylinder paper making machine or a fourdrinier former. It may contain wood, cotton pulp, and also synthetic fibers (capron, polyester) in its composition. Furthermore, the paper composition may contain fillers (titanium dioxide), additives to enhance the strength of paper in a dry and wet state (sodium salt of carboxymethyl cellulose, polyamide(amine) epichlorohydrin resin), materials for paper sizing in mass (alkyl ketene dimers), dyes (direct dyes, acid dyes).
- fillers titanium dioxide
- additives to enhance the strength of paper in a dry and wet state sodium salt of carboxymethyl cellulose, polyamide(amine) epichlorohydrin resin
- materials for paper sizing in mass alkyl ketene dimers
- dyes direct dyes, acid dyes.
- the paper is sized from the surface with an aqueous solution of polyvinyl alcohol, and also, which is less preferable, with aqueous dispersions of polyurethane, acrylate, or styrene-acrylate copolymer. If necessary, the paper may contain watermarks, fibers, filaments, and other security features.
- the solutions are preferably applied onto the paper portions of a thickness not more than 80 ⁇ m. This enables to obtain transparent portions with a high transparency on the paper after infiltration of the solution and curing.
- the paper used for the production of banknotes has a thickness of 100-130 ⁇ m at a grammage of 90 g/m 2 .
- portions of a predetermined shape and size which have a smaller thickness as compared to the thickness of the paper, can be formed in the paper web during sheet formation.
- a dandy roll or design cylinder having watertight elements (watermarks) which have the size and shape of these portions.
- the thickness of the paper can be varied by rasterization and by changing the thickness of these watertight elements.
- the portions of a smaller thickness can be formed on the paper by using a method described in US6402888, 11.06.2002 .
- the transparent portions obtained by applying the solutions onto paper by printing methods should have a shape and size envisaged by the design of a product.
- they may be located on a sheet of paper symmetrically to overlapping fragments of a watermark ( RU2475578, 20.02.2013 ).
- they are shaped and sized according to the overlapping fragments of the watermark.
- the transparent portions may have a square, circle, ellipse shape, etc.
- the transparent portions may be printed by conventional printing methods used for the production of valuable documents and, in particular, banknotes.
- the printing at the transparent portions can be carried out by a offset printing, metallographic printing, relief printing or screen printing method.
- the printing of predetermined portions of paper is performed firstly by the above-mentioned printing methods, and then the solution is applied onto these predetermined portions in order to obtain the transparent portions.
- a transparency level of the transparent portions was evaluated by measuring an optical density of the paper by means of an X-Rite transmission densitometer. Meanwhile, a decrease in optical density meant an increase in the transparency of the paper.
- a banknote paper having a grammage 90 g/m 2 was produced on a cylinder paper making machine according to a known technology, using a design cylinder having watertight elements fixed on a mesh in certain positions.
- the paper was sized in an impregnating bath with a 4% aqueous solution of PVA. At this time, symmetrically to an arrangement of the watertight elements on the mesh, portions whose thickness was less than the thickness of the paper (110 ⁇ m) and varied in the range of 60-96 ⁇ m were formed on the paper.
- the solution was applied onto both the paper portions of the thickness 110 ⁇ m and the thinner portions formed on the paper symmetrically to the arrangement of the watertight elements. After drying and full curing of the solution (after 72 hours), transparent portions visible in transmission mode were formed in those locations where the solution had been applied onto the paper.
- Example 2 The same as in Example 2, except that diethylene glycol diglycidyl ether (dynamic viscosity at 25°C is 38 mPa ⁇ s) was used in the solution composition instead of the polyoxypropylentriole triglycidyl ether.
- diethylene glycol diglycidyl ether dynamic viscosity at 25°C is 38 mPa ⁇ s
- Example 2 The same as in Example 2, except that butyl cellosolve monoglycidyl ether (dynamic viscosity at 25°C is 6 mPa ⁇ s) was used in the solution composition instead of the polyoxypropylentriole triglycidyl ether.
- butyl cellosolve monoglycidyl ether dynamic viscosity at 25°C is 6 mPa ⁇ s
- Example 2 The same as in Example 2, except that n-butanol monoglycidyl ether (dynamic viscosity at 25°C is 1.5 mPa ⁇ s) was used in the solution composition instead of the polyoxypropylentriole triglycidyl ether.
- n-butanol monoglycidyl ether dynamic viscosity at 25°C is 1.5 mPa ⁇ s
- Example 2 The same as in Example 2, except that a solution of the following composition was used for printing: Polyoxypropylentriole triglycidyl ether (dynamic viscosity at 25°C is 115 mPa ⁇ s) 25 parts Isopropyl alcohol 36 parts Curing agent PEPA 3 parts
- Example 2 The same as in Example 2, except that a solution of the following composition was used for printing: Polyoxypropylentriole triglycidyl ether (dynamic viscosity at 25°C is 115 mPa ⁇ s) 25 parts Isopropyl alcohol 31 parts Curing agent XT-116, component B ("CHIMEX Limited", CJSC) 8 parts
- Example 2 The same as in Example 2, except that a low-viscosity resin ELAD EDB (dynamic viscosity at 25°C is 950 mPa ⁇ s) was used in the solution composition instead of the polyoxypropylentriole triglycidyl ether.
- ELAD EDB dynamic viscosity at 25°C is 950 mPa ⁇ s
- the claimed method allows those portions to be obtained on the paper which have, as compared to the known prior art, a higher transparency without forming, on the surface of the paper, the films hindering the subsequent printing process.
- the result is achieved by applying onto the paper the solutions of glycidyl ethers of monohydric and polyhydric alcohols which are well absorbed in the paper structure, even when a concentration of the glycidyl ethers of monohydric and polyhydric alcohols in the solution is more than 50%.
- the greatest effect of using the method of the invention is achieved for papers having a high degree of opacity, which are used for example for the production of banknotes or other valuable documents.
- the invention is industrially applicable in the pulp and paper industry, in particular, for the manufacture of paper for producing banknotes, checks, certificates, bills, passports, identity cards, fuel vouchers, entertainment tickets, and other documents requiring protection against counterfeit.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Paper (AREA)
- Credit Cards Or The Like (AREA)
Claims (7)
- Procédé de fabrication de papier présentant des parties transparentes d'une certaine forme, dans lequel les parties de papier sont imprégnées localement d'une solution de composés présentant des groupes époxy en présence d'un agent de durcissement, caractérisé par le fait que des éthers glycidyliques d'alcools monohydriques et polyhydriques présentant une viscosité dynamique de pas plus de 150 mPas à une température de 25°C sont utilisés comme composés présentant des groupes époxy.
- Procédé selon la revendication 1, caractérisé par le fait que les éthers glycidyliques d'alcools monohydriques et polyhydriques sont dissous dans un solvant organique selon un rapport de masse de 30% à 90%.
- Procédé selon la revendication 1 ou la revendication 2, caractérisé par le fait que les solutions des éthers glycidyliques d'alcools monohydriques et polyhydriques sont appliquées par un procédé d'impression sur les parties de papier d'une épaisseur de pas plus de 80 µm, qui ont été produites le dans papier pendant la formation de feuilles de papier sur une machine de fabrication de papier.
- Procédé selon l'une quelconque des revendications 1 à 3, caractérisé par le fait que les parties transparentes présentent une forme de figures géométriques, de symboles, de lettres ou de chiffres qui sont visibles dans la lumière transmise.
- Procédé selon l'une quelconque des revendications 1 à 4, caractérisé par le fait que les images d'impression sont appliquées sur le papier présentant les parties transparentes.
- Procédé selon l'une quelconque des revendications 1 à 4, caractérisé par le fait que les images d'impression sont préalablement appliquées sur le papier, et ensuite est réalisée l'imprégnation du papier pour obtenir les parties transparentes.
- Papier présentant des parties transparentes, fabriqué par le procédé selon l'une quelconque des revendications 1 à 6.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2014132441/12A RU2568398C1 (ru) | 2014-08-06 | 2014-08-06 | Способ изготовления бумаги с прозрачными участками и бумага с прозрачными участками, изготовленная с помощью этого способа |
PCT/RU2015/000477 WO2016022046A2 (fr) | 2014-08-06 | 2015-07-29 | Procédé de fabrication de papier avec des sections transparentes, et papier avec des sections transparentes fabriqué selon ce procédé |
Publications (3)
Publication Number | Publication Date |
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EP3178659A2 EP3178659A2 (fr) | 2017-06-14 |
EP3178659A4 EP3178659A4 (fr) | 2018-03-21 |
EP3178659B1 true EP3178659B1 (fr) | 2019-07-24 |
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EP15829700.2A Active EP3178659B1 (fr) | 2014-08-06 | 2015-07-29 | Procédé de fabrication de papier avec des sections transparentes, et papier avec des sections transparentes fabriqué selon ce procédé |
Country Status (4)
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EP (1) | EP3178659B1 (fr) |
KR (1) | KR102185111B1 (fr) |
RU (1) | RU2568398C1 (fr) |
WO (1) | WO2016022046A2 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020108080A1 (de) | 2020-03-24 | 2021-09-30 | Koenig & Bauer Ag | Verfahren zur Herstellung eines als Durchsichtsregister auf einem Sicherheitsdokument wirksamen Sicherheitsmerkmals, Verfahren zum Herstellen von Sicherheitsdokumenten sowie Sicherheitsdokument |
DE102020108081A1 (de) | 2020-03-24 | 2021-09-30 | Koenig & Bauer Ag | Verfahren zur Herstellung eines als Durchsichtsregister auf einem Sicherheitsdokument wirksamen Sicherheitsmerkmals sowie Sicherheitsdokument mit einem als Durchsichtsregister auf einem Sicherheitsdokument wirksamen Sicherheitsmerkmal |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2639809C1 (ru) * | 2017-04-20 | 2017-12-22 | Акционерное общество "ГОЗНАК" | Способ изготовления бумаги с прозрачными участками и бумага с прозрачными участками, изготовленная с помощью этого способа |
SE2050456A1 (en) * | 2020-04-21 | 2021-10-22 | Rise Innventia Ab | Transparent paper or cardboard substrate and method for its production |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
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BE656943A (fr) * | 1960-12-27 | |||
US3985927A (en) * | 1975-02-24 | 1976-10-12 | Nekoosa Edwards Paper Company, Inc. | Compositions and method for producing a chemical watermark on finished paper products |
US5334455A (en) * | 1988-08-12 | 1994-08-02 | Stamicarbon B.V. | Free-radical curable compositions |
US6334678B1 (en) * | 1999-09-01 | 2002-01-01 | International Paper Company | Method for applying chemical watermarks on substrate |
FR2945551B1 (fr) * | 2009-05-13 | 2011-08-26 | Oberthur Technologies | Procede de fabrication d'un element de securite pour document de securite. |
EP2450188A4 (fr) * | 2009-07-01 | 2013-03-20 | Mitsubishi Plastics Inc | Film polyester stratifié |
JP5349172B2 (ja) * | 2009-07-01 | 2013-11-20 | 三菱樹脂株式会社 | 積層ポリエステルフィルム |
JP5626222B2 (ja) * | 2009-12-10 | 2014-11-19 | 王子ホールディングス株式会社 | 微細繊維状セルロースシートの製造方法および前記微細繊維状セルロースシートに樹脂含浸した複合体 |
RU2475578C1 (ru) * | 2011-12-23 | 2013-02-20 | Федеральное Государственное Унитарное Предприятие "Гознак" (Фгуп "Гознак") | Защищенная бумага с водяным знаком (варианты) и способ ее изготовления (варианты) |
-
2014
- 2014-08-06 RU RU2014132441/12A patent/RU2568398C1/ru active
-
2015
- 2015-07-29 WO PCT/RU2015/000477 patent/WO2016022046A2/fr active Application Filing
- 2015-07-29 KR KR1020177006296A patent/KR102185111B1/ko active IP Right Grant
- 2015-07-29 EP EP15829700.2A patent/EP3178659B1/fr active Active
Non-Patent Citations (1)
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None * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020108080A1 (de) | 2020-03-24 | 2021-09-30 | Koenig & Bauer Ag | Verfahren zur Herstellung eines als Durchsichtsregister auf einem Sicherheitsdokument wirksamen Sicherheitsmerkmals, Verfahren zum Herstellen von Sicherheitsdokumenten sowie Sicherheitsdokument |
DE102020108081A1 (de) | 2020-03-24 | 2021-09-30 | Koenig & Bauer Ag | Verfahren zur Herstellung eines als Durchsichtsregister auf einem Sicherheitsdokument wirksamen Sicherheitsmerkmals sowie Sicherheitsdokument mit einem als Durchsichtsregister auf einem Sicherheitsdokument wirksamen Sicherheitsmerkmal |
Also Published As
Publication number | Publication date |
---|---|
EP3178659A2 (fr) | 2017-06-14 |
WO2016022046A3 (fr) | 2016-03-17 |
KR20170041818A (ko) | 2017-04-17 |
EP3178659A4 (fr) | 2018-03-21 |
KR102185111B1 (ko) | 2020-12-02 |
WO2016022046A2 (fr) | 2016-02-11 |
RU2568398C1 (ru) | 2015-11-20 |
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