WO2023208284A1 - Substrat de document de valeur biodégradable - Google Patents

Substrat de document de valeur biodégradable Download PDF

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Publication number
WO2023208284A1
WO2023208284A1 PCT/DE2023/100304 DE2023100304W WO2023208284A1 WO 2023208284 A1 WO2023208284 A1 WO 2023208284A1 DE 2023100304 W DE2023100304 W DE 2023100304W WO 2023208284 A1 WO2023208284 A1 WO 2023208284A1
Authority
WO
WIPO (PCT)
Prior art keywords
biodegradable
fibers
paper
document substrate
layer
Prior art date
Application number
PCT/DE2023/100304
Other languages
German (de)
English (en)
Inventor
Elisabeth WÄSCHE
Ronald Sigl
Rudolf Seidler
Matthias Pfeiffer
Christoph Mengel
Stefan Bichlmeier
Harald Lesch
Felix Ehrtmann
Astrid DREXLER
Original Assignee
Giesecke+Devrient Currency Technology Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Giesecke+Devrient Currency Technology Gmbh filed Critical Giesecke+Devrient Currency Technology Gmbh
Publication of WO2023208284A1 publication Critical patent/WO2023208284A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • 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
    • B42D25/333—Watermarks
    • 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
    • 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
    • B42D25/355—Security threads
    • 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
    • B42D25/45—Associating two or more layers
    • B42D25/465—Associating two or more layers using chemicals or adhesives
    • B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives
    • 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
    • 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

Definitions

  • the invention relates to a biodegradable value document substrate, in particular a banknote.
  • WO 2004/072378 A1 proposes providing security paper with a protective layer based on a varnish.
  • WO 2004/028825 A2 describes the provision of a security paper that is improved against contamination and has increased mechanical strength based on a multilayer substrate which comprises at least one paper layer and a film.
  • the present invention is based on the object of overcoming the disadvantages of the prior art and of providing an improved valuable document substrate.
  • the valuable document substrate should in particular ensure sustainable and environmentally friendly disposal and at the same time have a high circulation stability.
  • the task is solved by the combination of features defined in the independent claim. Further developments of the invention are the subject of the dependent claims.
  • Biodegradable value document substrate comprising a biodegradable paper substrate with sustainable fibers, the sustainable fibers being selected from the group consisting of natural fibers, regenerated cellulose fibers, bio-based plant polymer fibers, bio-based animal polymer fibers or a mixture of two or more of the above-mentioned elements.
  • Biodegradable value document substrate according to clause 1, whereby natural fibers are selected as sustainable fibers and the natural fibers are based on a mixture comprising cotton fibers and resistant fibers, the resistant fibers preferably being from plants, selected from the group consisting of hemp, flax , fines, abaca, nettle, ramie, hops, sisal or a mixture of two or more of the above-mentioned elements.
  • Biodegradable value document substrate according to clause 2, wherein the paper substrate additionally contains bio-based plant polymer fibers as sustainable fibers, the bio-based plant polymer fibers being bio-based polyamide fibers, beech wood fibers, Tencel fibers, castor fibers, polylactate fibers and/or protein fibers, whereby the protein fibers are obtained in particular from corn, peanuts, milk and/or soy.
  • bio-based plant polymer fibers being bio-based polyamide fibers, beech wood fibers, Tencel fibers, castor fibers, polylactate fibers and/or protein fibers, whereby the protein fibers are obtained in particular from corn, peanuts, milk and/or soy.
  • Biodegradable value document substrate according to clause 2 or 3, wherein the paper substrate additionally contains bio-based animal polymer fibers as sustainable fibers, the bio-based animal polymer fibers being based on sheep's wool, virgin Merino wool, fine cashmere goat hair and/or alpaca wool.
  • Biodegradable value document substrate according to clause 2, 3 or 4, wherein the paper substrate additionally contains regenerated cellulose fibers as sustainable fibers.
  • Biodegradable value document substrate according to one of clauses 2 to 5, wherein the cotton fibers have an average length and the resistant fibers have an average length, the average length of the resistant fibers being increased by an amount in a range of 10 % to 50% is higher than the average length of the cotton fibers.
  • Biodegradable value document substrate according to one of clauses 1 to 6, wherein the paper substrate is a two-layer paper substrate with a first paper layer and a second paper layer, the first paper layer being based on fibers with an average length and the second paper layer being based on fibers based on an average length, the average length of the fibers of the second paper layer being higher by a certain amount than the average length of the fibers of the first paper layer, the certain amount being in particular in a range of 10% to 50%.
  • Biodegradable valuable document substrate according to one of clauses 1 to 7, wherein the paper substrate additionally contains biodegradable stabilizers based on biopolymers, in particular chitosan, and/or biodegradable auxiliary substances.
  • Biodegradable value document substrate according to one of clauses 1 to 8, wherein the value document substrate is a multilayer value document substrate with polymer layer/paper substrate/polymer layer structure or paper substrate/polymer layer/paper substrate structure, the polymer layer being biodegradable and is selected in particular from the group consisting of cellulose, polybutylene adipate terephthalate (BTA copolyester), polylactide (PLA), in particular biaxially oriented polylactide, polyhydroxybutyrate (PHB), or a mixture of two or more of the above-mentioned elements.
  • BTA copolyester polybutylene adipate terephthalate
  • PLA polylactide
  • PHA polyhydroxybutyrate
  • PHB polyhydroxybutyrate
  • Biodegradable value document substrate according to clause 9, wherein the value document substrate is a multilayer value document substrate with a polymer layer/paper substrate/polymer layer structure and the polymer layer is in each case a film.
  • Biodegradable value document substrate according to one of clauses 1 to 8, wherein the biodegradable paper substrate is provided on its two main surfaces with a biodegradable lacquer layer, the biodegradable lacquer layer being in particular from the group consisting of polysugar, lignin, Shellac, tree resin, polyvinylpyrrolidone (PVP), polyalcohol (PVA) or a mixture of two or more of the above-mentioned elements is selected.
  • a biodegradable lacquer layer being in particular from the group consisting of polysugar, lignin, Shellac, tree resin, polyvinylpyrrolidone (PVP), polyalcohol (PVA) or a mixture of two or more of the above-mentioned elements is selected.
  • Biodegradable valuable document substrate according to one of clauses 1 to 11, wherein the valuable document substrate has a security thread and/or a security strip and/or a security patch based on a biodegradable material and/or mottled fibers based on natural fibers.
  • Biodegradable value document substrate according to one of clauses 1 to 12, wherein the value document substrate is a banknote.
  • the invention is based on the finding that a sustainable value document substrate can be provided based on a biodegradable paper substrate containing sustainable fibers.
  • the valuable document substrate according to the invention preferably consists essentially of sustainable, i.e. biodegradable, components, it being particularly preferred that the valuable document substrate consists exclusively of sustainable components.
  • the biodegradable value document substrate according to the invention comprises a biodegradable paper substrate with sustainable fibers, the sustainable fibers being from the group consisting of natural fibers, regenerated cellulose fibers, bio-based plant polymer fibers, bio-based animal polymer fibers or a mixture of two or more rer of the above-mentioned elements are selected.
  • the valuable document substrate according to the invention can be disposed of in a sustainable and environmentally friendly manner at the end of the life cycle or recycled.
  • the biodegradable paper substrate comprises natural fibers as sustainable fibers, the natural fibers being based on a mixture comprising cotton fibers and resistant fibers and the resistant fibers preferably made from plants selected from the group consisting of hemp, flax, linen, abaca, stinging nettle, Ramie, hops, sisal or a mixture of two or more of the above-mentioned elements can be obtained. It is particularly preferred that the cotton fibers have an average length and the resistant fibers have an average length, the average length of the resistant fibers being higher than the average length of the cotton fibers is. In this way, a biodegradable valuable document substrate can be provided which is particularly advantageous compared to conventional valuable document substrates in terms of tear resistance and tear resistance.
  • the paper substrate contains bio-based plant polymer fibers as sustainable fibers, the bio-based plant polymer fibers being bio-based polyamide fibers, beech wood fibers, Tencel fibers, castor fibers, polylactate fibers and/or protein fibers, the protein fibers being made in particular from corn, peanuts, milk and / or soy can be obtained.
  • bio-based plant polymer fibers being bio-based polyamide fibers, beech wood fibers, Tencel fibers, castor fibers, polylactate fibers and/or protein fibers, the protein fibers being made in particular from corn, peanuts, milk and / or soy can be obtained.
  • the paper substrate contains bio-based animal polymer fibers as sustainable fibers, the bio-based animal polymer fibers being based on sheep's wool, Merino virgin wool, fine cashmere goat hair and/or alpaca wool.
  • biodegradable value document substrate can be provided which is particularly advantageous in terms of biodegradability compared to conventional value document substrates.
  • the paper substrate contains regenerated cellulose fibers as sustainable fibers, the paper substrate according to a particularly preferred variant consisting essentially or exclusively of regenerated cellulose fibers with regard to the cellulose fibers contained therein.
  • a biodegradable valuable document substrate can be provided which is particularly advantageous in terms of the ecological balance due to the use of recycled starting materials compared to conventional valuable document substrates.
  • the paper substrate is a two-layer paper substrate with a first paper layer and a second paper layer, the first paper layer being based on fibers with an average length and the second paper layer being based on fibers with an average length, the average length of the fibers being the second paper layer is higher by a certain amount than the average length of the fibers of the first paper layer, the certain amount being in particular re is in a range of 10% to 50%.
  • a biodegradable value document substrate with improved mechanical resistance can be provided, which can also be provided with areas with a watermark quality in which predominantly short fibers are contained compared to the remaining areas.
  • the multi-layer paper substrate can be provided, for example, according to the manufacturing process described in WO 2006/099971 A2. Alternatively, the production can be carried out in such a way that a paper layer based on long fibers is applied by spraying onto a paper layer based on short fibers.
  • the paper substrate additionally contains biodegradable stabilizers based on biopolymers, in particular chitosan, and/or biodegradable auxiliary substances.
  • biodegradable stabilizers based on biopolymers, in particular chitosan, and/or biodegradable auxiliary substances.
  • the valuable document substrate is a multilayer valuable document substrate with a polymer layer/paper substrate/polymer layer structure or paper substrate/polymer layer/paper substrate structure, the polymer layer being biodegradable and in particular from the group consisting of cellulose, polybutylene adipate terephthalate (BTA -copolyester), polylactide (PLA), in particular biaxially oriented polylactide, polyhydroxybutyrate (PHB), or a mixture of two or more of the above-mentioned elements.
  • BTA -copolyester polylactide
  • PHA polyhydroxybutyrate
  • the valuable document substrate has both improved mechanical strength and extremely advantageous resistance to contamination as well as environmentally friendly, biodegradability on.
  • the valuable document substrate is a multilayer valuable document substrate with a polymer layer/paper substrate/polymer layer structure, the polymer layer being a film in each case.
  • a valuable document substrate with a polymer layer/paper substrate/polymer layer structure, which is also referred to as a film composite substrate, is known from WO 2004/028825 A2.
  • the valuable document substrate according to the invention is designed in such a way that the biodegradable paper substrate is provided with a biodegradable lacquer layer on its two main surfaces, the biodegradable lacquer layer being in particular from the group consisting of polysugar, lignin, shellac, tree resin, polyvinylpyrrolidone (PVP), polyalcohol (PVA) or a mixture of two or more of the above-mentioned elements.
  • PVP polyvinylpyrrolidone
  • PVA polyalcohol
  • the valuable document substrate according to the invention is designed such that it has a security thread and/or a security strip and/or a security patch based on a biodegradable material and/or mottled fibers based on natural fibers. In this way, a valuable document substrate that is particularly advantageous in terms of recyclability can be provided.
  • the valuable document substrate according to the invention is in particular a banknote or a security paper suitable for the production of banknotes. Further exemplary embodiments and advantages of the invention are explained below with reference to the figures, in the representation of which a reproduction true to scale and proportion was omitted in order to increase clarity.
  • Figure 1 shows a value document substrate according to a first exemplary embodiment in a top view
  • Figure 2 shows a value document substrate according to a second exemplary embodiment in a top view
  • Figure 3 shows a section along the line A-B of the value document substrate shown in Figure 2;
  • Figure 4 shows a value document substrate according to a third exemplary embodiment in a top view
  • Figure 5 shows a section along line AB of the value document substrate shown in Figure 4.
  • Figure 6 shows a value document substrate according to a fourth exemplary embodiment in a top view
  • Figure 7 shows a section along line AB of the value document substrate shown in Figure 6;
  • Figure 8 shows a value document substrate according to a fifth exemplary embodiment in a top view;
  • Figure 9 shows a section along line AB of the value document substrate shown in Figure 8.
  • Figure 10 shows a value document substrate according to a sixth exemplary embodiment in a top view
  • Figure 11 is a side view of the value document substrate shown in Figure 10.
  • Figure 12 shows a cross section through a valuable document substrate according to the invention.
  • FIG. 1 illustrates a biodegradable value document substrate 0 according to the invention, in the example a banknote with the denomination 20, according to a first exemplary embodiment in a top view.
  • Banknote 0 contains a biodegradable paper substrate based on natural fibers as sustainable fibers.
  • the sustainable fibers are a mixture comprising cotton fibers and resistant fibers, namely abaca fibers, with the average length of the abaca fibers being 20% higher than the average length of the cotton fibers.
  • Banknote 0 also includes a polylactide (PLA)-based, metallized security thread (indicated by a black, solid line in the figure) and a polylactide (PLA)-based security patch (indicated by a gray area in the figure).
  • FIG. 2 shows a document of value 1 according to the invention, in the example a banknote, according to a second exemplary embodiment in a top view.
  • the paper layer consists of a mixture based on cotton fibers and fibers from the hemp plant as resistant fibers.
  • individual security elements are already embedded in the paper, namely a portrait watermark 2 and a window security thread 3.
  • the polylactide (PLA)-based, metallized security thread 3 is, so to speak, woven into the paper so that it is in the areas 3a comes directly to the surface of the paper, while it is completely embedded in the paper mass in the areas shown in dashed lines.
  • PLA polylactide
  • the paper layer is covered on both sides with a polylactide (PLA)-based film, with a polylactide (PLA)-based hologram strip 8 being applied to one side, namely on the inner side of the film.
  • PLA polylactide
  • PLA polylactide
  • FIG 3 shows a section through the banknote 1 according to the invention along the dash-dotted line AB shown in Figure 2.
  • the banknote 1 according to the invention consists of biodegradable paper 4 and biodegradable films 6, which, according to the embodiment shown, were laminated over the entire surface of the surface of the paper 4 using wet adhesive 5. Alternatively, only a film 6 can be applied to one side of the paper 4.
  • the upper film 6 was equipped with a holgram strip 8 before being laminated.
  • the upper film 6 was laminated onto the paper 4 in such a way that the strip 8 comes to rest inside the substrate composite.
  • the imprint 7 was printed using the intaglio printing process.
  • Figures 4 and 5 show a value document substrate 9 according to the invention, in the example a banknote, according to a third exemplary embodiment. 5 shows a section through the banknote 9 along the line AB drawn in dash-dotted lines in FIG. 4.
  • the banknote 9 consists of a divided, biodegradable paper web 10, the edges 12 of which are preferably designed as deckle edges.
  • Biodegradable films 13 were applied to both sides of the paper web using cold lamination and water-crosslinking adhesive.
  • area 11 there is no paper layer, but only the adhesive 5 and the foils 13.
  • a foil layer is equipped with a highly reflective metal strip 14 on one side.
  • the feature substance can be, for example, a luminescent substance that is transparent under normal lighting and which, when irradiated with UV light, emits in the visual spectral range and thus shows an intense color.
  • feature substances can also be provided that can be detected individually. Additional coding can be generated via the mixing ratio of the feature substances.
  • Figures 6 and 7 show a fourth exemplary embodiment of a banknote 16 according to the invention.
  • Figure 7 shows a section through the banknote 16 according to the invention along the line AB drawn in dash-dotted lines in Figure 6.
  • Figure 6 shows a top view of three wide strips 17, 18, 19, each of which has a different visual appearance and is incorporated in different layers of the film/paper/film composite substrate.
  • FIG. 7 shows the cross section of the banknote 16.
  • the biodegradable paper layer 21 is conventionally printed with steel intaglio printing in the form of the strip 17.
  • a transparent adhesive layer 20 was applied over this.
  • a second, colored layer of adhesive was applied, which results in strip 18.
  • the adhesive layers 18, 20 are in turn covered with a biodegradable film 22, on the inside of which there is a hologram strip 19.
  • Another biodegradable film 23 was laminated on the back using the transparent adhesive 20.
  • Figure 8 shows a section of the banknote 24 according to the invention, with different security features being arranged in register in different layers and resulting in the overall information “PATTERN” in combination with a two-color metallic circular ring.
  • the circular ring is divided into four segments, with segments 25a being gold-colored and segments 25b being silver-colored.
  • the gold and silver color is achieved, for example, by vacuum vapor deposition with copper and aluminum.
  • recesses were incorporated into the metal layer in the segments 25b, namely the letter "U” on the one hand and the letter "E” on the other.
  • FIG. 9 shows the section of the banknote 24 according to the invention shown in Figure 8 in cross section.
  • the banknote is composed of a biodegradable paper layer 28 and two biodegradable film layers 27a, 27b, each of which is laminated on one side of the paper layer.
  • a luminescent substance 29 has been introduced into the paper layer 28 in the circular area 26.
  • the letters “S” and “T” were printed on the paper layer using intaglio printing, and these are located above area 26.
  • the film 27b is also equipped with security features.
  • the foil On the side that lies inside the layer structure, the foil was designed with gold and silver-colored metallization, for example made of aluminum and copper, in the form of a segmented circular ring. Cutouts in the shape of the letters “U” and “E” were incorporated into the silver-colored area 25b.
  • the letters “M” and “R” were printed on the outer surfaces of the film 27b using the intaglio printing process.
  • FIG 10 shows a banknote 30 according to the invention in a top view.
  • the banknote is composed of a biodegradable paper layer 31 and two biodegradable film layers 32a, 32b, each of which is laminated on one side of the paper layer.
  • FIG 11 shows the banknote 30 shown in Figure 10 in cross section.
  • the foils 32a and 32b are designed to be transparent over the entire surface.
  • the paper layer 31 has two recesses 33,34 in the form of circles. Of course, any other form is also conceivable.
  • the film 32a is printed with the letters “A”, “L” and “V”, which appear as mirror images when viewed from above according to FIG.
  • the letters “I” and “D” are printed on the paper layer 31 approximately in the middle of the banknote.
  • the printed letters complement each other to form the font "VALID".
  • the fields to be placed one above the other in Figure 10 are marked with circles (solid line or dashed line).
  • the complementary prints can also be more complex in nature or, with appropriate design, create moire effects and the like.
  • Figure 12 shows a banknote 40 according to the invention in cross section.
  • the banknote consists of a biodegradable paper layer 41 and a biodegradable film 42, which are laminated together with three different adhesives 43, 44, 45.
  • the adhesives may be of different colors or of different types.
  • the adhesives 43, 44, 45 have different adhesion properties to one another, so that predetermined breaking points can be specifically incorporated into the composite and manipulations due to irreversible changes can be easily recognized.
  • Biodegradable value document substrate comprising a biodegradable paper substrate with sustainable fibers, the sustainable fibers being selected from the group consisting of natural fibers, regenerated cellulose fibers, bio-based plant polymer fibers, bio-based animal polymer fibers or a mixture of two or more of the above-mentioned elements.
  • Biodegradable value document substrate wherein natural fibers are selected as sustainable fibers and the natural fibers are based on a mixture comprising cotton fibers and resistant fibers, the resistant fibers preferably being made from plants, selected from the group consisting of hemp, flax, linen, abaca , nettle, ramie, hops, sisal or a mixture of two or more of the above-mentioned elements.
  • Biodegradable valuable document substrate according to claim 2 wherein the paper substrate additionally contains bio-based plant polymer fibers as sustainable fibers, the bio-based plant polymer fibers being bio-based polyamide fibers, beech wood fibers, Tencel fibers, castor fibers, polylactate fibers and / or protein fibers, the protein fibers being in particular from corn, Peanut, milk and/or soy are obtained.
  • bio-based plant polymer fibers being bio-based polyamide fibers, beech wood fibers, Tencel fibers, castor fibers, polylactate fibers and / or protein fibers, the protein fibers being in particular from corn, Peanut, milk and/or soy are obtained.
  • Biodegradable value document substrate according to claim 2 or 3 wherein the paper substrate additionally contains bio-based animal polymer fibers as sustainable fibers, the bio-based animal poly-

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Abstract

L'invention concerne un substrat de document de valeur biodégradable comprenant un substrat de papier biodégradable ayant des fibres durables, les fibres durables étant choisies dans le groupe constitué par des fibres naturelles, des fibres de cellulose régénérée, des fibres polymères végétales d'origine biologique, des fibres polymères animales d'origine biologique, ou un mélange d'au moins deux des éléments susmentionnés.
PCT/DE2023/100304 2022-04-29 2023-04-27 Substrat de document de valeur biodégradable WO2023208284A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022001505.6 2022-04-29
DE102022001505.6A DE102022001505A1 (de) 2022-04-29 2022-04-29 Biologisch abbaubares Wertdokumentsubstrat

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WO2023208284A1 true WO2023208284A1 (fr) 2023-11-02

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WO (1) WO2023208284A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023110082A1 (de) 2023-04-20 2024-10-24 Giesecke+Devrient Currency Technology Gmbh Biologisch abbaubares Wertdokumentsubstrat

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004028825A2 (fr) 2002-09-19 2004-04-08 Giesecke & Devrient Gmbh Papier de securite
WO2004072378A1 (fr) 2003-02-11 2004-08-26 Giesecke & Devrient Gmbh Papier de securite et procede de production associe
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WO2020050971A2 (fr) * 2018-08-23 2020-03-12 Eastman Chemical Company Articles obtenus par voie humide compostables comprenant de la cellulose et des esters de cellulose

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DE102016015546A1 (de) 2016-12-27 2018-06-28 Giesecke+Devrient Currency Technology Gmbh Mehrlagiges Wertdokumentsubstrat

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WO2004072378A1 (fr) 2003-02-11 2004-08-26 Giesecke & Devrient Gmbh Papier de securite et procede de production associe
WO2006099971A2 (fr) 2005-03-23 2006-09-28 Giesecke & Devrient Gmbh Papier securise a plusieurs couches
WO2016034687A1 (fr) * 2014-09-05 2016-03-10 Oberthur Fiduciaire Sas Support papier, son procédé de fabrication et document de sécurité fabriqué avec celui-ci
US20200063368A1 (en) * 2018-08-23 2020-02-27 Eastman Chemical Company Paper composition cellulose and cellulose ester for improved texturing
WO2020050971A2 (fr) * 2018-08-23 2020-03-12 Eastman Chemical Company Articles obtenus par voie humide compostables comprenant de la cellulose et des esters de cellulose

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