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WO2019038780A1 - Substrat destiné à être utilisé dans des applications de sécurité et son procédé de fabrication - Google Patents

Substrat destiné à être utilisé dans des applications de sécurité et son procédé de fabrication Download PDF

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Publication number
WO2019038780A1
WO2019038780A1 PCT/IN2018/050530 IN2018050530W WO2019038780A1 WO 2019038780 A1 WO2019038780 A1 WO 2019038780A1 IN 2018050530 W IN2018050530 W IN 2018050530W WO 2019038780 A1 WO2019038780 A1 WO 2019038780A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
substrate
black ink
coating
film
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.)
Ceased
Application number
PCT/IN2018/050530
Other languages
English (en)
Inventor
Raj Prehar
Vijay Raja
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2019038780A1 publication Critical patent/WO2019038780A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal 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
    • B42D25/20—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
    • B42D25/364—Liquid crystals
    • 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
    • B42D25/369—Magnetised or magnetisable 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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/373—Metallic 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

Definitions

  • the present invention relates to the field of substrates and method of manufacturing the substrates, which can be used in numerous validating and/or security applications.
  • the features that are included for validating and securing involve use of metal and de-metalized regions formed on the substrate (which can be for example a polymeric substrate or paper substrate) and liquid crystals that cannot be copied and/or incorporated into documents and/or currency notes using the available device.
  • the method for manufacturing such substrates which involve one or more additional features for prevention of counterfeiting are complex and involve complex method for manufacturing.
  • An object of the present invention is to solve one or more deficiencies encountered in the prior art or to at least deliver a beneficial substitute
  • Another object of the present invention is to provide a substrate with one or more validating and/or security features
  • Yet another object of the present invention is to provide a method for manufacturing a substrate with more validating and/or security features.
  • the present invention relates to the field of manufacturing substrates which can be used in numerous validating and/or security applications such as identity cards, passport and like.
  • a substrate is disclosed, which can be used in numerous validating and/or security applications.
  • a substrate (100) for security applications comprising:
  • LC liquid crystal
  • the layer of liquid crystal (LC) solution (106) is in monomer form/ state at the time of coating and said monomers are polymerized after coating;
  • polymeric material is polyethylene terephthalate (PET) in form of a Film and said PET film is transparent and non-metalized;
  • PET polyethylene terephthalate
  • the present disclosure relates to a substrate and a method of manufacturing the same.
  • a substrate (200) for security applications said substrate (200) comprising: a base layer (202) having a first operative surface (202a) and a second operative surface (202b), wherein said base layer (202) is a film of polymeric material; a layer of water washable solution (210) disposed or coated on the second operative surface of said base layer(202b); a layer of Aluminium (208) deposited on said layer of water washable solution (210), wherein said Aluminium is deposited by means of vacuum deposition method or vapour deposition method;
  • LC liquid crystal
  • said substrate can have different colour combination in colour change effect by changing composition of liquid crystal solution, wherein said color's in colour change effect, change according to change in composition of Liquid crystal solution (206), - wherein the colour change effect is based on optical properties of different materials used in the substrate,
  • second operative surface of the base layer be optionally used for additional security features like machine readable properties by coating of magnetic material.
  • Figure 1 illustrates a schematic cross-sectional view of one of the embodiments according to present invention, a substrate which is used in numerous validating and/or security applications;
  • Figure 2 illustrates a schematic cross-sectional view of one of the embodiment according to present invention, a substrate which is used in numerous validating and/or security applications.
  • the present invention relates to a substrate and a method of manufacturing said substrate.
  • the substrate may be used in various shape and sizes for different authenticating or security application.
  • the security applications, features are in the form of indicia formed on substrate in different sizes, shapes, text or pattern.
  • the indicia formed by metallization or de-metallization the metal used in substrate or by other process like coating of black ink at selected portion of the substrate.
  • the security features can be easily viewed by naked eyes.
  • Liquid crystal material exhibits different exhibits of optical properties of Liquid crystal material are well known in physics.
  • Liquid crystal (LC) exhibits difference in colour when viewed in transmission and reflection from differently angles.
  • Present invention shows a high degree of colour purity in the reflected waves for different viewing angle.
  • the present invention is based on the optical properties of light like absorption, reflection, refraction.
  • the present invention also includes application of magnetic properties for security applications which are machine readable.
  • the application/ use of magnetic material in the substrate gives security features which are machine readable but not viewed by the human eye.
  • the magnetic material placed at substrate in a specific pattern, shape as per requirement of use and applications of security features.
  • FIG. 1 illustrates a schematic cross-sectional view of a substrate (100) which can be used in numerous validating and/or security applications in accordance with one embodiment of the present invention.
  • a substrate (1 00) for security applications comprising: - a base layer (1 02) having a first operative surface (1 02a) and a second operative surface (102b), wherein the base layer is a film of polymeric material; - a layer of black ink (1 04) disposed on said first operative surface (1 02a) of said base layer (102), wherein said black ink disposed on the selected portion(s) of said first operative surface; wherein said blank ink function as absorber of light, and wherein said black ink is disposed by means of coating, or printing, or transfer, or lamination process; and
  • LC liquid crystal
  • polymeric material is polyethylene terephthalate (PET) in form of a Film and said PET film is transparent and non-metalized;
  • PET polyethylene terephthalate
  • said substrate shows a change in colour effect at the selected portion from different viewing angle by the human eye
  • colour change effect changes according to the change in composition of Liquid crystal solution (106), - wherein the colour change effect is based on optical properties of different materials used in the substrate;
  • a lamination or coating of a protective layer on the security substrate preferably on liquid crystal coated layer for anti-scratch, anti-wear.
  • a magnetic material layer coating be applied on the layer of black ink coating at selected, pre-defined locations to enable machine readable magnetic properties of the substrate.
  • the reflected waves of light are seen as a colour.
  • the reflected colour wave length depends on composition of liquid crystal material and changes according to change in composition of Liquid crystal.
  • a method for manufacturing a substrate (100) for security applications is disclosed.
  • a method of manufacturing a substrate as claimed in Claim 1 comprising the following steps:
  • said polymeric material preferably a polyethylene terephthalate (PET) film and said film used as base layer;
  • the polymeric material layer is not limited to polyethylene terephthalate (PET).
  • the substrate as per one of the embodiment of the present invention, wherein said selected portion(s) forms a indicia in a forms of an image(s), letter's, mark's or combination of anyone on the substrate at the pre-defined places/location as per the user requirement.
  • the substrate as per one of the embodiments of the present invention, wherein optionally magnetic material layer coating be applied on the any operative surface of base layer, or any surface of finished substrate at selected, pre-defined locations to enable machine readable magnetic properties.
  • the substrate in accordance with present invention inserted in the document of value.
  • the security features of the substrate can be identified to know the genuiness of the product or identify the counterfeit product.
  • the substrate shows the colour change effect when viewed from different angle by the human eye.
  • the substrate changes the colour from one colour to another colour when viewed from different view angles.
  • the change in colour depends on the composition of liquid Crystal.
  • the coating of black ink on selected portion gives the shape of indices used to identify the security features.
  • the colour change from one colour to another colour provides one of the safety feature.
  • the shape pattern of indices provides another safety feature.
  • the location of coating of black ink on a substrate provides still another safety feature.
  • substrate (200) for security applications comprising: a base layer (202) having a first operative surface (202a) and a second operative surface (202b), wherein said base layer (202) is a film of polymeric material; a layer of water washable solution (21 0) disposed or coated on the second operative surface of said base layer(202b); a layer of Aluminium (208) deposited on said layer of water washable solution (210), wherein said Aluminium is deposited by means of vacuum deposition method or vapour deposition method;
  • PET polyethylene terephthalate
  • the security features are viewed from the liquid crystal (LC) (106) side, wherein said substrate shows a change in colour effect at the selected portion from different viewing angle by the human eye;
  • LC liquid crystal
  • said substrate can have different colour combination in colour change effect by changing composition by liquid crystal solution.
  • said color's in colour change effect change according to change in composition of Liquid crystal solution (206), - wherein the colour change effect is based on optical properties of different materials used in the substrate;
  • second operative surface of the base layer is optionally used for additional security features like machine readable properties by coating of magnetic material.
  • the substrate as per one of the embodiment of the present invention, wherein said selected portion(s) forms a indicia in a forms of an image(s), letter's, mark's or combination of anyone on the substrate at the pre-defined places/location as per the user requirement.
  • the substrate as per one of the embodiments of the present invention, wherein optionally layer of magnetic material coating is applied on the any operative surface of base layer, or any surface of finished substrate at selected, predefined locations to enable machine readable magnetic properties.
  • phosphorescent, luminescent, fluorescent material be used as addition material, which is read or identify through the machine.
  • PET polyethylene terephthalate
  • the layer of Aluminium (208) selectively de-metalized by etching means at selected portion's corresponding to remaining portion unmasked by black ink layer (204) coating by suitable chemical, wherein one of the suitable chemical is Sodium hydroxide NaoH solution;
  • the use of water washable solution coating as one layer in the substrate as per one of the embodiment gives better and additional cleaning and better results of the substrate for security features.
  • the removal of Aluminium is done by the etching process.
  • the sodium hydroxide preferably used as etching medium.
  • the removal of Aluminium gives shape/ pattern of indices.
  • the indices are one of the security features.
  • black coating is done on the selected portion of Aluminium layer, that portion become un-etched and the un-remained black ink coated portion is exposed of Aluminium and the same is etched by Sodium hydroxide (NaoH) solution.
  • NaoH Sodium hydroxide
  • the substrate in accordance with present invention inserted in the document of value.
  • the security features of the substrate can be identified to know the genuiness of the product or identify the counterfeit product.
  • the substrate inserted in the document of vale in such a way so that Liquid crystal coating should be viewable on the surface.
  • the substrate shows the colour change effect when view from different angle by the human eye.
  • the substrate changes the colour from one colour to another colour when looked from different view angles.
  • the change in colour depends on the composition of liquid Crystal.
  • the coating of black ink on selected portion gives the shape of indices used to identify the security features.
  • the colour change from one colour to another colour provides one of the safety feature.
  • the shape pattern of indices provides another safety feature.
  • the location of coating of black ink on a substrate provides another safety feature.
  • the black ink absorbs the light and reflects the light as per the law of physics.
  • the whole substrate is invented on the basis of law of physics.
  • the black ink layer is based on copolymers and terpolymers of vinyl chloride or from similar polymers.
  • the metal layer is not limited to Aluminium but may be selected from the group consisting of Aluminium, copper, gold, and silver.
  • the liquid crystal solution may be selected from the known liquid crystal solution used in the industry.
  • the liquid crystal material may be polymeric crystal material.
  • the liquid crystal solution used is in monomer for coating purpose and then polymerised for better quality of optical effects in change of colour or shift of colour.
  • the water washable solution for water soluble coating is made from polyvinyl alcohol or from polyesters or from polyvinyl pyrrolidone or from any suitable chemicals.
  • the polymeric material layer is not limited to polyethylene terephthalate (PET).
  • one of the etching medium is sodium hydroxide.
  • an indicia may be in a form of image(s), letter's, mark's or combination of anyone on the substrate at the pre-defined places/location as per the user requirement, and wherein said indicia be positive or negative.
  • the document of value includes paper currency note, passport, stamp paper etc.
  • the presently disclosed invention provides several advances including, but not limited to, substrates and a method for manufacturing the substrates, which can be used in numerous validating and/or security applications, wherein
  • the substrates have a design that is simple to manufacture

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

La présente invention concerne le domaine des substrats et un procédé de fabrication de substrats pouvant servir dans de nombreuses applications de validation et/ou de sécurité. Plus précisément, la présente invention concerne un nouveau substrat comportant un revêtement de différentes couches disposées de manière nouvelle. Le nouveau substrat est simple à fabriquer, et le procédé de fabrication des substrats est simple et moins fastidieux.
PCT/IN2018/050530 2017-08-19 2018-08-15 Substrat destiné à être utilisé dans des applications de sécurité et son procédé de fabrication Ceased WO2019038780A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201721024159 2017-08-19
IN201721024159 2017-08-19

Publications (1)

Publication Number Publication Date
WO2019038780A1 true WO2019038780A1 (fr) 2019-02-28

Family

ID=65439986

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2018/050530 Ceased WO2019038780A1 (fr) 2017-08-19 2018-08-15 Substrat destiné à être utilisé dans des applications de sécurité et son procédé de fabrication

Country Status (1)

Country Link
WO (1) WO2019038780A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8490879B2 (en) * 2008-07-09 2013-07-23 Giesecke & Devrient Gmbh Security element
US8622435B2 (en) * 2004-08-12 2014-01-07 Giesecke & Devrient Gmbh Security element and method for producing the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8622435B2 (en) * 2004-08-12 2014-01-07 Giesecke & Devrient Gmbh Security element and method for producing the same
US8490879B2 (en) * 2008-07-09 2013-07-23 Giesecke & Devrient Gmbh Security element

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