EP1766138A1 - Structure tricotee destinee a etre incorporee dans un materiau en feuille - Google Patents
Structure tricotee destinee a etre incorporee dans un materiau en feuilleInfo
- Publication number
- EP1766138A1 EP1766138A1 EP05792022A EP05792022A EP1766138A1 EP 1766138 A1 EP1766138 A1 EP 1766138A1 EP 05792022 A EP05792022 A EP 05792022A EP 05792022 A EP05792022 A EP 05792022A EP 1766138 A1 EP1766138 A1 EP 1766138A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet material
- material according
- knitted
- knitted structure
- knit
- 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.)
- Granted
Links
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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
-
- 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
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/10—Patterned fabrics or articles
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/44—Watermarking devices
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/06—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type
- D21F11/08—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type paper or board consisting of two or more layers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F9/00—Complete machines for making continuous webs of paper
- D21F9/04—Complete machines for making continuous webs of paper of the cylinder type
- D21F9/043—Complete machines for making continuous webs of paper of the cylinder type with immersed cylinder
-
- 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
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
- B41M3/144—Security printing using fluorescent, luminescent or iridescent effects
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/01—Surface features
- D10B2403/012—Alike front and back faces
- D10B2403/0122—Smooth surfaces, e.g. laminated or coated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/2481—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including layer of mechanically interengaged strands, strand-portions or strand-like strips
- Y10T428/24818—Knitted, with particular or differential bond sites or intersections
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/40—Knit fabric [i.e., knit strand or strip material]
- Y10T442/425—Including strand which is of specific structural definition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/40—Knit fabric [i.e., knit strand or strip material]
- Y10T442/425—Including strand which is of specific structural definition
- Y10T442/438—Strand material formed of individual filaments having different chemical compositions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/40—Knit fabric [i.e., knit strand or strip material]
- Y10T442/45—Knit fabric is characterized by a particular or differential knit pattern other than open knit fabric or a fabric in which the strand denier is specified
Definitions
- Knitted structure to be incorporated in a sheet material
- the present invention particularly relates to a sheet material and a document or a printing medium comprising or consisting of such a sheet material. There is a need to further improve the protection of security or valuable documents against forgery.
- banknotes are often folded in use, which weakens them and can lead to rips after a certain period of use. There is thus also a need to mechanically reinforce security or value documents, especially banknotes.
- the present invention aims in particular to meet at least one of the aforementioned needs.
- the object of the invention is, according to one of its aspects, a sheet material whose particularity is to incorporate at least one knitted structure.
- sheet material may denote in the description and the claims a sheet of paper and / or plastic, having a monolayer or multilayer structure, composite or not.
- a sheet material may for example have a relatively small thickness, especially less than or equal to 3 mm, for example equal to about 100 microns, and be flexible.
- the sheet material can be packaged in a reel, especially before being cut to the desired format.
- the invention offers many advantages.
- the knitted structure can allow, if desired, depending for example on its positioning, its nature and its size, to mechanically reinforce the sheet material, and in particular to reduce the risk of tearing of the sheet material. this. This can be useful in particular to improve the mechanical strength of banknotes, for example.
- the fact that the structure is knitted allows to achieve it if desired with relatively wide meshes, which can facilitate its incorporation into a paper mass.
- the structure being knitted it may have a certain elongation in at least one direction, which may make it easier to incorporate in a paper, for example.
- the knitted structure for example by choosing the mesh pattern, the elongation that is desired, in particular to allow the incorporation of the structure within a fibrous layer during its manufacture on a paper machine.
- the elongation presented by the knitted structure will advantageously be sufficient to avoid the appearance of internal stresses likely to damage the fibrous layer or the knitted structure itself, especially during drying of the paper.
- the elongation may be, before incorporation of the structure into the sheet material, for example between about 1% and about 5%, especially at least about 1%, 2%, 3%, 4% or 5%. %, in a predetermined direction of elongation.
- the aforementioned elongation direction is advantageously parallel to the longitudinal direction of the strip, which may correspond to the direction of travel of the knitted structure in the paper machine.
- the knitted structure can be made, if desired, so as to be able to extend in two different directions, in particular two directions perpendicular to each other.
- the elongation of the knitted structure may be at least 3% in a first direction and at least 1% in a second direction, perpendicular to the first, before incorporation of the knitted structure into the sheet material. .
- the structure is knitted with at least five threads, in particular at least ten threads, for example about twenty threads.
- the knitted structure may comprise for example at least one metal wire or a metal alloy, for example steel or Permalloy type alloy for antitheft detection.
- the structure may also, where appropriate, incorporate at least one wire used for authentication.
- the knitted structure can be made with various mesh shapes, which may allow for example to create specific patterns, which may contribute to make it more difficult to falsify and / or serve for the identification of a document or at the level of visual aspect, either to the touch, for example by the visually impaired.
- the knitted structure may also be made with a variable shape, for example a band having a non-constant width, which makes it possible to increase the aesthetic possibilities, identification and / or authentication, for example in combination with other authentication elements superimposed at least partially on the knitted structure or integrated therewith.
- the knitted structure may have a mechanical reinforcement function and an authentication and / or identification function.
- the knitted structure may comprise one or more son made of plastic, in particular polyamide, acrylic or polyester, based on mineral fibers, for example glass or carbon, or based on plant material (s) or animal (s). All the yarns of the knitted structure may be made of the same material, for example one of the abovementioned plastics or, alternatively, the knitted structure comprises at least two yarns made of different materials. All the son of the structure may for example be plastic, except one which is metallic. The higher the number of different wires, the more difficult the structure can be to reproduce and therefore to counterfeit.
- the knitted structure may be at least partially plain knit, knit 1/1 rib, English rib, half-English rib, variure, guilloche knit, knit "8 locks", interlock, knit-fabric, knit jacquard, knit returned, this list not being limiting.
- the knitted structure is configured to create on at least one outer face of the sheet material, in particular on two outer faces of the sheet material, a visually perceptible and / or tactile texture.
- the structure may comprise at least one authentication and / or identification element chosen for example from: an element for highlighting a falsification , in particular visible and / or detectable by means of a specific detection device, an element with variable and / or diffractive, interferential, iridescent or liquid crystal optical effect, a magnetic or crystalline coating, magnetic fibers, tracers detectable tracers by X-ray fluorescence, biomarkers, a varnish or an ink, luminescent or fluorescent tracers, photochromic, thermochromic, electroluminescent and / or piezochromic compounds and / or which change color in contact with a or several predetermined products.
- the authentication element and / or identification is carried by at least one wire of the knitted structure.
- the structure may comprise at least one of the following yarns, in particular a combination thereof: a fluorescent or phosphorescent yarn, a magnetic yarn having soft or hard magnetism properties, a yarn allowing detection by exposure to microorganisms, waves.
- a fluorescent or phosphorescent yarn a magnetic yarn having soft or hard magnetism properties
- a yarn allowing detection by exposure to microorganisms, waves.
- the multiplication of wires with different properties may enhance safety.
- the invention makes it possible, if necessary, to provide a better rendering, in particular a visual one, and to obtain a more homogeneous effect. stable, especially in the case where the authentication and / or identification elements, for example fibers or markers, would be dispersed in the mass of the fibrous layer.
- the knitted structure is made with metal wires having soft magnetism properties, for example of the type described with reference to the patent application EP 897 569.
- This knitted structure can, if it is desired to have a strip shape with a width less than or equal to 1 cm, the wires each having a diameter of, for example, between 20 ⁇ m and 30 ⁇ m.
- this strip-knitted structure makes it possible to obtain a strip-like zone on this material which is well defined, contrary in particular to a strip zone formed by incorporating fibers cut into the mass of the sheet material. .
- the knitted structure may comprise a combination of metal son having soft magnetism properties and one or more son, metal or not, of different nature, especially with different magnetic properties.
- the knitted structure may comprise all types of yarns, for example a flattened yarn, a yarn having a star-shaped section, a textured yarn, a twisted yarn, a single-stranded or multi-stranded yarn, for example a double yarn.
- One of the son of the structure may be composite, that is to say comprise at least two different materials, for example a core in a first material and a sheath in a second material.
- At least one yarn of the structure may in particular comprise a coating comprising an interferential multilayer, providing an effect of color, this coating comprising for example a succession of layers of high and low refractive indices.
- the knitted structure may comprise at least two yarns of different colors.
- the colors of the wires of the structure can thus be used for authentication and / or identification.
- all the son of the structure have the same color.
- the son of the structure have, for example in a transverse direction when the structure is in the form of a band, intersections forming a detectable code, possibly by a device of specific detection, especially optical.
- the structure is knitted so as to have at least one pattern, in particular a design, a logo or a text. The pattern, design, logo or text may, where appropriate, be repeated at regular intervals along the structure.
- the structure can be knitted, if necessary, by changing the type of mesh being knitted.
- the knitted structure may have a thickness less than or equal to 100 ⁇ m, in particular less than 70 ⁇ m, for example less than or equal to 50 ⁇ m, and have for example a strip shape, with in particular a width of less than 50 mm, in particular less than 20 mm, for example between 5 and 30 mm, for example between 5 and 15 mm, or between 10 and 20 mm, when it must be used as a "safety band".
- the knitted structure can still extend over the entire width of the sheet material, especially when the knitted structure is to strengthen it.
- the thickness of the sheet material may be greater than that of the structure.
- the structure when the nature of the son used allows it, the structure is heat-fixed at least partially, particularly hot by calendering, to improve its dimensional stability and / or reduce its thickness.
- the crisscrossing of yarns can in particular undergo a fusion which solidarises the son between them.
- the knitted structure may comprise a coating which covers it at least partially. This may comprise for example an adhesive for improving the anchoring of the structure within the sheet material, for example a heat-sealable varnish.
- the coating may further comprise, if desired, particles, for example for example, magnetic particles or pigments, for example iridescent pigments.
- the coating may also include an interferential multilayer structure, producing a color effect observed through a window of the sheet material for example.
- the coating comprises a metal, for example aluminum or copper.
- the knitted structure may also be at least partially coated with an ink, in particular an ink deposited by printing.
- the ink may contain at least one luminescent, fluorescent, photochromic, thermochromic, electroluminescent and / or piezochromic compound.
- the knitted structure may be at least partially embedded in a layer of the sheet material, this layer being especially non-textile.
- This layer may for example be fibrous in nature, and contain paper fibers, for example cellulosic and / or fibers of synthetic nature.
- the knitted structure When the knitted structure is embedded at least partially in a fibrous layer, it advantageously has meshes with a size chosen to allow the penetration of fibers through these meshes, so as to ensure a satisfactory cohesion of the fibrous layer and a good anchoring of the structure within the fibrous layer.
- the meshes of the structure may form, for example, voids having an area of at least 0.1 mm 2 , in particular at least 1 mm 2 , for example at least 5 mm 2 , for example at least about 9 mm 2 or 16 mm 2 or more, when the structure is flat and seen from above.
- the knitted structure comprises at least one portion embedded in at least one layer of sheet material and at least one uncovered portion, for example a succession of alternately embedded and uncovered portions.
- the knitted structure may, alternatively, be entirely embedded in the sheet material or come along its entire length flush with an outer face thereof.
- the knitted structure has a width less than that of the sheet material.
- the knitted structure may extend over the entire extent of the sheet material, on its surface or not.
- the structure can in particular extending from a first edge of the sheet material to a second edge, opposite the first.
- the invention also relates to a document, in particular security and / or value, comprising and / or constituted by a sheet material as defined above.
- the document can be chosen from: a bank note, an identity document such as an identity card, a driver's license or a pass, a passport slip or cover, a visa, a coupon, a valuable document other than a bank note, for example a check or a credit card, a protection and / or authentication label, a traceability label, an entry ticket for a cultural or sports event.
- the invention also relates to a printing medium comprising and / or constituted by a sheet material as mentioned above.
- This printing medium can be constituted for example by a letter paper, a paper for a printer, an envelope, a cardboard paper, this list not being limiting.
- the invention further relates, in another of its aspects, independently or in combination with the above, to a knitted structure intended to be incorporated at least partially in a sheet material, the knitted structure comprising at least one element of authentication and / or identification.
- the invention further relates, in another of its aspects, independently or in combination with the foregoing, to a sheet material, characterized in that it comprises at least one knitted structure comprising at least two son having sizes and / or different optical, physical or chemical forms and / or properties, the knitted structure having, prior to incorporation into the sheet material, an elongation of at least about 3% in a predetermined direction.
- the invention further relates, in another of its aspects, independently or in combination with the foregoing, to a sheet material, characterized in that it incorporates at least one knitted structure made with at least two mesh shapes different.
- the invention further relates, in another of its aspects, independently or in combination with the foregoing, a sheet material, characterized in that it incorporates at least one knitted structure extending over the entire surface of the sheet material, the structure being knitted so as to form at least one pattern, this pattern having for example the appearance of a strip extending from a first edge of the sheet material to a second edge opposite the first edge.
- a sheet material having a substantially rectangular shape, characterized in that it incorporates at least one knitted structure extending along one side of the rectangle.
- the sheet material incorporates two knitted structures disposed respectively along two parallel sides of the rectangle.
- the invention thus makes it possible to reinforce, as the case may be, two or four corners of the sheet material.
- the invention further relates, in another of its aspects, independently or in combination with the foregoing, a sheet material comprising at least one intertwined son structure, in particular knitted, the structure having a width less than that of the material in sheet.
- a structure can be configured for example to create on at least one face of the sheet material, in particular on two sides, a visually perceptible and / or tactile texture and possibly comprise at least one authentication and / or identification element .
- the invention further relates, in another aspect, a sheet material having a crisscrossed son structure, in particular knitted, at least partially embedded in at least one layer, in particular a fibrous layer, sheet material.
- a structure advantageously has meshes having a size large enough to allow penetration of fibers through the structure.
- the meshes may form, for example, voids having an area of at least 0.1 mm 2 , in particular at least 1 mm 2 , for example at least 5 mm 2 , for example at least 9 mm 2 approximately or about 16 mm 2 , when the structure is observed flat from above.
- the structure may extend over substantially the entire extent of the sheet material, or alternatively only in a fold zone of the sheet material, especially in a middle region thereof.
- the structure extends along at least one edge of the sheet material.
- This can incorporate a single knitted structure or, alternatively, at least two knitted structures, for example a first knitted structure in a medial zone and second and third knitted structures substantially parallel to the first and extending along two opposite edges of the sheet material. In the case of a bank note, this can for example strengthen the corners.
- Another subject of the invention is a method of manufacturing a sheet material, comprising the following steps:
- forming at least one fibrous layer by a papermaking technique, for example by deposition of fibers on a surface immersed in a dispersion of fibrous material, bringing a cross-threaded structure, in particular knitted, in contact with the fibrous layer, during or after its formation, and possibly form at least one window, crossing or not, in which appears the knitted structure.
- the invention further relates, in another of its aspects, to a method of manufacturing a sheet material, comprising the following steps: - forming a first paper jet by deposition of fibers on a first surface immersed in a dispersion fibrous material,
- Another aspect of the invention is a method of manufacturing a knitted structure for incorporation into a sheet material, the method comprising the steps of:
- the structure is knitted with its final width, which makes it possible not to make cuts after knitting.
- the structure may be subjected to heat treatment, in particular heat-setting, for example hot calendering, before incorporation into the sheet material.
- a coating is deposited on the already knitted structure, especially after optional heat-fixing.
- a coating is deposited on at least one of the son of the structure, before knitting.
- the coating may be an ink deposited in particular by printing.
- the subject of the invention is also a method for authenticating and / or identifying a security and / or value document comprising a sheet material incorporating a knitted structure, the method comprising the following steps:
- the invention also relates to an authentication method in which at least one thread of the knitted structure is analyzed.
- the analysis may for example be an optical, chemical or mechanical analysis, or even an analysis of the biological, electrical or electromagnetic properties of at least one wire.
- FIG. schematically and partially, an example of a document produced according to the invention
- FIG. 2 represents in isolation, schematically and partially, in plan view, the structure incorporated in the document of FIG.
- FIG. 3 schematically and partially shows a knitted structure having patterns
- FIGS. 4 to 6 show, schematically and partially, in cross-section, documents corresponding respectively to other examples of implementation of FIG. invention
- FIGS. 7 to 9 illustrate, schematically and partially, the intercrossing of the stitches of different knitted structures
- FIG. 10 represents, schematically and partially, a detail of a woven structure
- FIGS. 11 to 13 show, schematically and partially, two documents in accordance with other examples of implementation of the invention.
- FIG. 14 schematically illustrates a step of a method of manufacturing the document of FIG. 1, according to an exemplary implementation of the invention
- FIG. 15 schematically illustrates a step of a method of manufacturing a document according to another exemplary implementation of the invention.
- FIG. 1 shows a document 1 forming a sheet material within the meaning of the invention, for example a bill, comprising a fibrous layer 2, in which a knitted structure 3 according to the invention is incorporated.
- Document 1 may still be a security document such as an identity document, a passport, a visa, a coupon, a valuable document other than a bank note, a trademark counterfeit protection label or a traceability label.
- the knitted structure 3 may be in the form of a longitudinal axis band X, with a width smaller than that of the document 1, being for example about 15 mm or less.
- the structure 3 can be knitted in different ways. This may for example be a plain knit, being knitted on a bed only of a knitting machine.
- the structure 3 may be a ribbed knit formed on two needle straps simultaneously of a knitting machine.
- the ribbed knit can still be a knitted mesh knit, also called knit knit.
- FIG. 7 shows a crisscross pattern of stitches of a knit double-stitch knit fabric.
- the ribbed knit can also be a half-English knit rib with 1/1 rib rows alternating with rows of English ribs.
- the structure 3 may alternatively be knitted to form a variure or a guilloche knit.
- the structure 3 forms a knit "8 locks", for example an interlock knit, making it possible to produce the structure 3 with stripe or checkerboard patterns.
- the structure 3 may also be formed by a knit-fabric having a mixture of rows in rib and rows in plain.
- the structure 3 can be knitted according to an intersia knit or a jacquard knit.
- the structure 3 can still be knitted in stitches, as illustrated in FIG. 9.
- the number of constituent yarns of the knitted structure 3 may depend, for example, on patterns or elements identification or authentication that you want to integrate.
- the knitted structure 3 may comprise for example at least five threads, especially at least ten threads, for example about twenty threads.
- the structure 3 can be knitted with its definitive width, so that it is not necessary to reduce its width before incorporation into the fibrous layer.
- the final structure 3 is obtained by cutting, in particular by ultrasound, a knitted sheet having a width greater than the definitive width of the structure 3.
- the knitted structure 3 may be subjected to a heat treatment, for example to be hot heat-set by calendering, in particular when the yarns used are made of thermoplastic material.
- the structure 3 may be coated, if necessary, with an adhesive, for example a heat-sealable varnish.
- the structure 3 can be knitted from yarns of the same nature as illustrated in FIG. 7, or, alternatively, from several yarns of different natures, for example to multiply the safeties.
- the structure 3 comprises for example at least one of the following son:
- a yarn made of plastic material in particular polyamide, acrylic or polyester,
- a wire in particular of steel, a wire based on glass or carbon fibers,
- the structure 3 may comprise only polyamide yarns 10, with the exception of a metal wire 11, made of steel, for example, in particular of a Permalloy type material, which may allow detection by certain anti-theft doors.
- the rows of meshes are substantially parallel to the axis X.
- the structure 3 may comprise son having all the same color or alternatively comprise at least two son of different colors. Depending on the desired level of security, the structure 3 may comprise at least one fluorescent or phosphorescent wire, a magnetic wire having properties of soft or hard magnetism and a wire compatible with microwave detection.
- the knitted structure 3 may be made for example from 19 polyester yarns and a fluorescent yarn, each yarn having for example a diameter of about 33 ⁇ m and the knitted structure a thickness substantially double of said diameter, that is to say - say neighbor of 66 ⁇ m.
- At least one authentication and / or identification element chosen from one of the following elements: a highlighting element of a falsification, in particular visible and / or detectable by means of a specific detection device, an element with variable and / or diffractive optical effect, iridescent or liquid crystal, a magnetic or crystalline coating, magnetic fibers, tracers detectable by magnetic resonance, detectable tracers by X-ray fluorescence, biomarkers, a varnish or an ink, luminescent or fluorescent tracers, photochromic, thermochromic, electroluminescent and / or piezochromic compounds and / or which change color in contact with one or more predetermined products .
- the aforementioned authentication and / or identification element may be incorporated in a coating deposited on the knitted structure 3, for example by coating or printing.
- the knitted structure 3 can be made in such a way that it is possible to authenticate and / or identify a document from a mesh parameter of the structure 3 and / or by detection of an authentication element and / or identification present on the structure 3.
- the knitted structure 3 can be completely embedded in the fibrous layer 2, as can be seen in FIG.
- the structure 3 comes at least partially flush with a face 4 of the document 1, for example in order to create a detectable relief to the touch or to make it possible to visually observe the structure 3, in order to for example to see the mesh or a surface coating deposited on at least one wire thereof.
- the structure 3 is partially embedded in the fibrous layer 2 so as to present alternately embedded and uncovered portions.
- the fibrous layer 2 may comprise zones 8 such as recesses forming windows leaving portions of the structure 3 discovered.
- the fibrous layer 2 may comprise, if appropriate, bosses 9, shown in dashed lines in FIG. 6, located between the zones 8.
- a first denomination of notes may comprise a knitted structure having a first stitch pattern, for example English-side, as illustrated in FIG. 7, and a second denomination comprises a structure with a second stitch pattern, different the first, for example with rolled ribs, as shown in Figure 9.
- the son of the structure 3 may further have intersections whose disposition forms a detectable code through a specific detection device, for example optical.
- the structure 3, once incorporated into the fibrous layer 2, can create on at least one outer face 4 of the document 1, in particular on two faces, an area 7 having a texture detectable visually and / or to the touch, as illustrated in FIG. 4.
- the texture in the zone 7 may be more or less pronounced depending on the thickness of the structure 3.
- the structure 3 may have, for example, a thickness of less than 50 ⁇ m, in particular between about 30 ⁇ m and 40 ⁇ m, for a thickness total of the upper sheet material for example.
- the structure 3 can still be used only to improve the mechanical strength of the fibrous layer 2 and do not comprise any specific authentication and / or identification element, in which case the structure 3 preferably extends over the entire length of the structure. 1, and if necessary without inducing detectable relief to the touch on the surface of the sheet material.
- the structure 3 is knitted. According to other aspects of the present invention, the structure 3 may be replaced by a structure 3 'which is woven, as illustrated in FIG. 10.
- the woven structure 3' may or may not comprise authentication elements and / or identification, being made from son of different natures or not.
- the structure 3 extends over a relatively small width, between two opposite edges 15 of the document 1.
- the structure 3 or 3 ' may extend over a larger width, as illustrated in FIG. 11, so as to cover in particular a folding zone of the document 1.
- the folding zone can be in a median zone.
- the structure 3 or 3 ' may extend over the entire surface of the document 1, as illustrated in FIG. 12, in order to mechanically reinforce the document over its entire surface.
- a sheet material according to the invention may comprise a number of structures 3 or 3 'greater than or equal to two.
- the document 1 may comprise three structures 3 or 3 ', a first extending in a median zone and the other two along two opposite edges of the document 1.
- the two structures situated at the edge may correspond for example each half of a larger structure cut in half when cutting the document 1 to its final format.
- a paper machine with round shape comprises a tank 15 containing a suspension 16 of fibers, for example of cellulose fibers and / or cotton linters and / or synthetic and / or artificial fibers, in which is partially immersed a rotating cylinder 17 defining a surface 18 in contact with which is formed continuously the fibrous layer 2.
- a suspension 16 of fibers for example of cellulose fibers and / or cotton linters and / or synthetic and / or artificial fibers
- the knitted structure 3 or woven 3 ' may comprise reliefs 13, shown in dashed lines in FIG. 14, these reliefs 13 being constituted for example by bosses on the cylinder 17 or by one or several masks.
- FIG. 15 illustrates a method for incorporating a knitted or woven structure into a sheet material according to another exemplary embodiment of the invention.
- a first paper stream 20 is formed in contact with a first surface 21 of a cylinder 22 immersed in a fibrous dispersion.
- the first jet 20 is driven towards a second cylinder 24 immersed in a second fibrous dispersion, a second paper jet 20 being formed in contact with a surface 25 of the second cylinder 24.
- a knitted structure 3 or woven 3 ' is fed between the first and second jets of paper between the cylinder 24 and a drive cylinder 27 so as to allow the incorporation of the structure within the two jets of paper.
- the structure 3 or 3 ' may for example be embedded in the fibrous layer 2 without creating texture on the surface of the sheet material.
- the structure 3 may be knitted so as to form on a portion of its surface a pattern 40, for example a pattern having the appearance of a strip, as illustrated in FIG. 17.
- the structure 3 extends over the entire surface of the document 1. In a variant, the structure 3 extends over only a portion of the surface of the document.
- the yarn or yarns for knitting the pattern 40 may be of a nature and / or aspect, for example of color, different from the yarn (s) used to knit the parts of the structure 3 outside the pattern 40.
- the pattern 40 may for example be knitted according to a mesh different from that of the parts of the structure 3 outside the pattern 40.
- the document 1, in particular of rectangular shape may comprise a striped knitted structure 3 extending along a long side of the rectangle (FIG. 18) or a short side (FIG. 19).
- the document 1 comprises two striped knitted structures 3 extending respectively along the two long sides of the rectangle ( Figure 20) or two short sides of the rectangle ( Figure 21).
Landscapes
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Of Fabric (AREA)
- Laminated Bodies (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0451539A FR2873134B1 (fr) | 2004-07-15 | 2004-07-15 | Structure tricotee destinee a etre incorporee dans un materiau en feuille et materiau en feuille incorporant une telle structure |
PCT/FR2005/050577 WO2006016088A1 (fr) | 2004-07-15 | 2005-07-12 | Structure tricotee destinee a etre incorporee dans un materiau en feuille |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1766138A1 true EP1766138A1 (fr) | 2007-03-28 |
EP1766138B1 EP1766138B1 (fr) | 2009-10-21 |
Family
ID=34950224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05792022A Not-in-force EP1766138B1 (fr) | 2004-07-15 | 2005-07-12 | Structure tricotee destinee a etre incorporee dans un materiau en feuille |
Country Status (9)
Country | Link |
---|---|
US (1) | US8445392B2 (fr) |
EP (1) | EP1766138B1 (fr) |
AT (1) | ATE446413T1 (fr) |
BR (1) | BRPI0513376A (fr) |
CA (1) | CA2573770C (fr) |
DE (1) | DE602005017271D1 (fr) |
ES (1) | ES2334247T3 (fr) |
FR (1) | FR2873134B1 (fr) |
WO (1) | WO2006016088A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014033658A1 (fr) | 2012-09-03 | 2014-03-06 | Arjowiggins Security | Procédé d'authentification a partir de la teneur en matière bio-sourcée |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2839917B1 (fr) * | 2002-05-22 | 2004-10-08 | Arjo Wiggins | Article forme a partir d'au moins un jet de matiere fibreuse comportant au moins une zone d'epaisseur nulle et procede de fabrication dudit article |
GB0525888D0 (en) * | 2005-12-20 | 2006-02-01 | Rue De Int Ltd | Improvements in methods of manufacturing security substrates |
FR2907808B1 (fr) * | 2006-10-31 | 2009-01-16 | Arjowiggins Soc Par Actions Si | Feuille presentant un effet tactile et un effet interferentiel et document de securite la comportant |
FR2907947B1 (fr) * | 2006-10-31 | 2009-03-20 | Arjowiggins Soc Par Actions Si | Procede d'authentification et/ou d'identification d'un document de securite et/ou de valeur |
FR2909703B1 (fr) * | 2006-12-12 | 2009-03-06 | Hexcel Reinforcements Soc Par | Reseau, destine a la constitution d'un ecran attenuateur de lumiere, assurant une auto-regulation de la lumiere transmise |
GB2457666B (en) * | 2008-02-19 | 2012-09-12 | Dw Spinks Embossing Ltd | Thin film display |
FR2929962B1 (fr) * | 2008-04-11 | 2021-06-25 | Arjowiggins Licensing Sas | Procede de fabrication d'une feuille comportant une sous- epaisseur ou une sur-epaisseur au niveau d'un ruban et feuille associee. |
JP2013525613A (ja) * | 2010-03-26 | 2013-06-20 | ナムローゼ・フェンノートシャップ・ベーカート・ソシエテ・アノニム | 鋼繊維の編布 |
CN102277797A (zh) * | 2011-08-22 | 2011-12-14 | 保定钞票纸业有限公司 | 防伪布纸及其制备方法 |
CN103541263B (zh) * | 2012-07-10 | 2016-06-08 | 昆山钞票纸业有限公司 | 防伪纸及其制造方法 |
FR3011011B1 (fr) | 2013-09-23 | 2016-04-29 | Arjowiggins Security | Papier comportant des fibres synthetiques fibrillees. |
FR3018085A1 (fr) | 2014-02-28 | 2015-09-04 | Arjowiggins Security | Element de securite tactile |
FR3034110B1 (fr) | 2015-03-23 | 2017-04-21 | Arjowiggins Security | Papier comportant des fibres synthetiques |
CN105113312A (zh) * | 2015-08-28 | 2015-12-02 | 天津中钞纸业有限公司 | 超宽安全线防伪纸的加工装置及制作方法 |
US11702775B2 (en) * | 2020-10-08 | 2023-07-18 | Heng Sheng Investment Ltd. | Method for forming anti-counterfeiting feature during knitting of fabric and fabric thereof |
Family Cites Families (21)
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FR646709A (fr) * | 1927-01-06 | 1928-11-15 | Matériel pour l'emballage et son procédé de fabrication | |
US1921504A (en) * | 1928-04-27 | 1933-08-08 | Brown Co | Composite web and method of making the same |
FR1263931A (fr) * | 1960-05-03 | 1961-06-19 | C T A Cie Ind De Textiles Arti | Feutres filtrants à haute résistance mécanique |
DE1560872A1 (de) * | 1964-06-16 | 1970-06-11 | Kalle Ag | Verfahren zur Herstellung von Wirrfaservliesen |
GB1365876A (en) | 1970-10-20 | 1974-09-04 | Portals Ltd | Security paper |
IT944921B (it) * | 1970-11-16 | 1973-04-20 | Gordon W | Perfezionamento nella carta di sicurezza in particolare carta valuta e simili |
GB1585533A (en) * | 1976-12-07 | 1981-03-04 | Portals Ltd | Security papers |
DE2856833A1 (de) * | 1978-12-30 | 1980-07-17 | Hoechst Ag | Identifikationskarte und verfahren zu ihrer herstellung |
IN157644B (fr) | 1981-02-19 | 1986-05-10 | Portals Ltd | |
EP0070172B1 (fr) * | 1981-07-13 | 1985-08-14 | Portals Limited | Papier comprenant un ruban partiellement incorporé, méthode de fabrication du papier et papier de sécurité |
DE3333387A1 (de) * | 1983-09-15 | 1985-04-11 | Huckfeldt & Thorlichen, 2082 Tornesch | Kuenstliche wursthuelle |
DE3601114A1 (de) * | 1986-01-16 | 1987-07-23 | Gao Ges Automation Org | Verfahren zur herstellung von sichrheitspapier mit eingelagertem sicherheitsfaden |
US4863777A (en) * | 1987-05-04 | 1989-09-05 | Milliken Research Corporation | Wallcovering |
GB8912750D0 (en) * | 1989-06-02 | 1989-07-19 | Portals Ltd | Security paper |
ES2023617A6 (es) * | 1991-01-10 | 1992-01-16 | Nacional Moneda Timbre | Papel de seguridad para billetes y otros documentos. |
GB9209368D0 (en) * | 1992-04-30 | 1992-06-17 | Wolf Adrian F | A method of making a flexible closure incorporating an alarm system |
US5992741A (en) | 1996-12-12 | 1999-11-30 | Robertson; Paul Andrew | Magnetic detection of security articles |
EP0857433B1 (fr) * | 1997-01-29 | 2002-05-02 | Sympatex Technologies GmbH | Chaussure avec couche de ventilation |
DE19809085A1 (de) * | 1998-02-25 | 1999-08-26 | Paugstadt | Optisches Sicherheitsmerkmal und Verfahren zu dessen Herstellung |
JP2000025829A (ja) * | 1998-07-06 | 2000-01-25 | Nagaharu Tsusho Kk | 多目的複合シート |
DE10143382B4 (de) * | 2001-09-05 | 2012-03-08 | Blücher Systems GmbH | Tarnnetz |
-
2004
- 2004-07-15 FR FR0451539A patent/FR2873134B1/fr not_active Expired - Fee Related
-
2005
- 2005-07-12 US US11/632,350 patent/US8445392B2/en not_active Expired - Fee Related
- 2005-07-12 BR BRPI0513376-9A patent/BRPI0513376A/pt not_active IP Right Cessation
- 2005-07-12 WO PCT/FR2005/050577 patent/WO2006016088A1/fr active Application Filing
- 2005-07-12 EP EP05792022A patent/EP1766138B1/fr not_active Not-in-force
- 2005-07-12 ES ES05792022T patent/ES2334247T3/es active Active
- 2005-07-12 DE DE200560017271 patent/DE602005017271D1/de active Active
- 2005-07-12 AT AT05792022T patent/ATE446413T1/de not_active IP Right Cessation
- 2005-07-12 CA CA2573770A patent/CA2573770C/fr not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2006016088A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014033658A1 (fr) | 2012-09-03 | 2014-03-06 | Arjowiggins Security | Procédé d'authentification a partir de la teneur en matière bio-sourcée |
Also Published As
Publication number | Publication date |
---|---|
FR2873134B1 (fr) | 2011-07-15 |
US8445392B2 (en) | 2013-05-21 |
US20080107875A1 (en) | 2008-05-08 |
FR2873134A1 (fr) | 2006-01-20 |
BRPI0513376A (pt) | 2008-05-06 |
WO2006016088A1 (fr) | 2006-02-16 |
CA2573770A1 (fr) | 2006-02-16 |
EP1766138B1 (fr) | 2009-10-21 |
DE602005017271D1 (de) | 2009-12-03 |
ATE446413T1 (de) | 2009-11-15 |
ES2334247T3 (es) | 2010-03-08 |
CA2573770C (fr) | 2013-03-05 |
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