Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
  • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
  • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
  • B26F1/38—Cutting-out; Stamping-out
  • B26F1/384—Cutting-out; Stamping-out using rotating drums
• • 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
  • 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
  • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
  • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
  • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
  • B26D7/18—Means for removing cut-out material or waste
  • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
  • B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
  • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
  • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
  • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
  • D21H21/48—Elements suited for physical verification, e.g. by irradiation
• • 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
  • Y10T83/00—Cutting
  • Y10T83/04—Processes
  • Y10T83/0524—Plural cutting steps
• • 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
  • Y10T83/00—Cutting
  • Y10T83/768—Rotatable disc tool pair or tool and carrier
  • Y10T83/7809—Tool pair comprises rotatable tools
  • Y10T83/7851—Tool pair comprises disc and cylindrical anvil

Definitions

• the invention relates to a method for manufacturing relatively small format elements such as boards, and in particular to the cutting method. , as well as the corresponding devices.
• the invention also relates to said elements thus obtained and the fibrous sheets containing them.
• security documents there are small format security elements known as planchettes for authenticating documents. These boards are similar to confetti, usually circular or hexagonal. They can include authentication agents.
• security papers or bank note papers containing boards they are introduced into the aqueous dispersion containing cellulose fibers or synthetic fibers and other additives commonly used in the paper industry.
• aqueous suspension When the aqueous suspension is drained on a fabric of a round-form or flat-table paper machine called Fourdrinier, a number of boards are placed on the surface of the sheet of paper thus formed, and then the sheet is dried. .
• the sheet may also be relative to the decorative field, the boards being then for decorative use.
• Leaves or security documents with boards are described for example in patents EP342929, EP546917, EP544611 or US4037007. These boards are currently made by a sequential process of stamping by punches or pins of a flat sheet.
• the sheets are plastic sheets and / or light weight paper.
• overlay sheet When they are based on a sheet of paper, it is usually a so-called overlay sheet, usually used as a protective sheet in the field of decorative laminated papers; this sheet is traditionally made by draining an aqueous suspension of slightly refined cellulose fibers, of the order of 20 °
• the stamping process being slow and the sheets used thin, about 50 to 100 microns thick, it is generally stamped several stacked sheets, three to four sheets most often.
• a disadvantage is that there is a deformation of the sheets during stamping, especially at the level of the sheets below, which creates irregular boards.
• Another disadvantage is that it is difficult to change the shape of punches or pins because they are plates in one piece.
• Another disadvantage is that there is sufficient space between the punches or pins so that the sheet is well maintained during stamping, resulting in a large sheet waste, especially since the sheet is a sheet expensive because it includes impressions, other security features, and authentication agents.
• Another disadvantage is that the larger the size of the boards, the more the stamping becomes difficult.
• the current boards have a limited size of about 1.5 mm.
• a disadvantage is that their small size does not allow to print texts or patterns clearly visible and / or readable.
• a disadvantage is therefore that this stamping process does not easily provide boards of larger size.
• the objects of the invention are to overcome the disadvantages set forth above. The goals are achieved by proposing a new method of manufacturing relatively small format elements and in particular a new cutting method.
• the invention proposes a method of manufacturing elements of relatively small size, especially such as boards, comprising the steps following: - a rolled sheet is rolled out, then - this sheet is optionally printed at least partially on at least one face, then - is cut to full flesh "thoroughly" the sheet in a succession of at least two cutting patterns which intersect so as to form a resulting pattern which will form a detached element constituting the security element, this cutting being done using a succession of synchronized cutting cylinders respectively carrying one of the cutting patterns, cylinders anvil being interposed between these cutting cylinders, the sheet running between all these cylinders, - one recovers the detached elements which form the elements of relatively small size.
• the wound sheet is a sheet of paper, nonwoven, plastic or a complex of these paper / plastic materials, paper / nonwoven, plastic / nonwoven or paper / plastic / nonwoven in one any order.
• the plastic is in particular polyester.
• the sheet is printed by flexography.
• the sheet is printed in a proportion of 1 to 10 g / m 2 per side, preferably between about 2 and 5 g / m 2 per side, in dry weight.
• the sheet is printed on one side.
• the sheet is printed on its two faces successively by recto-verso, in particular by turning the sheet or by inversion of rotation of a printing unit.
• the sheet has a thickness of between about 50 and 110 ⁇ m.
• the detached elements are recovered by dehulling, in particular by peel bar and suction.
• the detached element has its largest dimension of between 0.5 and 6 mm, preferably between 1 and 4 mm.
• the invention also relates to the cutting method per se.
• This method of cutting relatively small format elements is characterized by the fact that, starting from a sheet, these sheets are cut out "in the flesh" in a continuous succession at least two cutting patterns which intersect so as to constitute a resultant pattern which will form a detached element constituting said relatively small-sized element, this cutting taking place by means of a succession of synchronized cutting cylinders respectively carrying a cutting pattern, anvil cylinders being interposed between these cutting cylinders.
• the invention also relates to the cutter full flesh ("bottom").
• This device for cutting relatively small format elements, especially such as boards is characterized by the fact that it comprises a rotary cutting device comprising a succession of synchronized cutting cylinders comprising respective cutting threads, anvil cylinders.
• each cutting cylinder is a magnetic cylinder covered with a magnetizable flexible plate retained by the magnetization forces, in particular steel, carrying electrochemically etched cutting threads. More particularly, this cutting device comprises an anvil base cylinder.
• the invention also relates to the device for manufacturing said relatively small format elements, particularly such as boards, which is characterized in that it comprises a reel holder, a printing device with at least one printing unit, a cutting device as described above.
• this manufacturing device comprises a printing device comprising at least two printing units with a set of rollover bar between the groups.
• this manufacturing device comprises a printing device comprising at least two printing units with a device for reversing the rotation of one of the printing units.
• this manufacturing device comprises, after the cutting device, a dehulling device, in particular by peeling bar and suction.
• this manufacturing device comprises a device for treating against static electricity. Examples of devices and methods for manufacturing relatively small format elements according to the invention are described below.
• Figure 1 shows schematically a manufacturing device according to the invention.
• FIG. 2 shows the rolls of the cutting device according to the invention, FIG. 2A being a side view of said rolls and FIG.
• FIG. 2B being a front and detailed view.
• a manufacturing device comprising: a reel holder with a coil (1) of overlay type paper, consisting mainly of cellulose fibers and having a weight average of 27 g / m 2 , - a printing device (2) comprising two flexographic printing groups (2a) and (2b) and a set of rollover bars (2r), - a device cutting device (3) comprising two cutting cylinders (3 a) and (3 b) between which is inserted an anvil cylinder (3 c) and comprising an anvil cylinder base (3d), the cylinders being synchronized, - a dehulling device (4) by peeling bar and suction.
• FIG. 2B A detail of the cutting cylinders with the cutting patterns is shown in Figure 2B.
• the patterns intertwine to form a resulting pattern that is a disc (confetti type) that forms a detached element that will constitute a planchette.
• the device of Figure 1 can rotate at a speed of between 20 to 150 m / min.
• the boards are made as follows: the sheet of paper is unwound, the upper surface is printed with fluorescent inks at the rate of 3 g / m 2 , to make a pattern representing a flag, the sheet is turned over by the barces of flipping and to a registration recto / verso, one prints the other face according to the same motive.
• the print is dried by a UV radiation device. Other hot air or infra-red drying devices could be used.
• the sheet is driven to the cutting device. It passes between the cutting cylinder (3a) and the anvil cylinder (3c) in order to cut the paper "full” in the pattern according to the pattern carried by said cylinder (3 a), it continues its path between the anvil roll ( 3c) and the cutting cylinder (3b) to cut full flesh "thoroughly” the paper according to the pattern carried by said cylinder (3b), which crosses the first cutting pattern to form a loose element under fornie of disk.
• the screws (3 e) allow to synchronize the cutter plate rollers for the cutting threads to form the pattern adequately.
• the device makes it possible to cut a multitude of discs in the sheet and continuously.
• the detached elements of the sheet are recovered from the sheet by a decorticating device by peeling barce and suction (4) and packaged.
• Examples of cutting patterns according to the invention which can interlock to form a detachable resulting pattern as well as the resulting pattern are shown in Figures 3 to 10 of the drawing board 3/3.
• the first two patterns represent intersecting cutting patterns and the bottom pattern represents the resulting pattern that will correspond to the relatively small foraiat element, for example a safety board.
• the actual dimensions of the elements are given in millimeters in the figure.
• the invention also aims at protecting a relatively small security or decorative element, such as a safety or decorative board, obtained according to the manufacturing and / or cutting methods described above.
• Security element means any element with a security purpose such as the security elements traditionally used in security documents (valuable papers such as banknotes, checks, coupons, restaurant vouchers or identity papers) but also for other applications of secure papers related to hygiene and / or medical and / or traceability, to the safety of people such as for example to indicate a specific event as an expiry date.
• a use of decorative elements can be made by inclusion in sheets including paper to make decorative effect sheets.
• said element has a thickness of between 50 and 110 ⁇ m. More particularly, the invention aims to protect a security element obtained according to the manufacturing and / or cutting methods described above and which has identification patterns observable with the naked eye.
• said security element comprises patterns chosen from patterns visible in natural light, visible under UV light, luminescent, in particular fluorescent or phosphorescent, detectable by visible radiation under near or medium infra-red, thermochromic, piezochromic, motifs based on DNA tracers, optically variable patterns, especially iridescent or based on liquid crystals or diffraction gratings or moire or electromagnetic holograms, or combinations thereof. More particularly, said security element comprises, under or next to said patterns, impressions of electromagnetic character, especially magnetic and in particular continuous tracks or codes in the form of magnetic bits. In another particular case, said security element comprises chemical reagents authentication or reagents revealing a specific event.
• the invention also aims to protect a security element as described above, the shape of said element (after cutting) being a security feature (authentication). Indeed the elements can have original shapes and / or complex that previous techniques did not allow to obtain.
• the invention also aims to protect a sheet having a fibrous substrate comprising said security element or decorative relatively small format.
• the element comprises a wetting agent and / or a heat-sealable varnish facilitating its incorporation and its resistance in the fibrous substrate.
• the fibrous substrate may in particular be obtained by the papermaking process from an aqueous suspension of cellulosic and / or synthetic fibers to which the relatively small foraminous elements have been added according to the known techniques for the boards of the prior art.
• the invention therefore provides a security sheet comprising the security element as described above.
• the invention also provides a decorative sheet comprising a decorative element obtained according to the methods described above.
• the sheet with said element can therefore be a traditional security sheet such as for example a bank note paper or paper checks but also a secured sheet that is to say a sheet for a label, a sheet for the medical field or hospital.
• the invention also relates to a package comprising such a sheet with said element.
• the invention also relates to a security document comprising, as a basis, a sheet having a fibrous substrate including at least one element of relatively small security format as described above.
• This security document can be for example a banknote, a check, a restaurant ticket, a lottery ticket, an entrance ticket to cultural events or sports.
• the invention also provides a method of authenticating a sheet or document or security article comprising a small format element as described above, using the form of said element after cutting as a security feature (authentication).
• the recognition of the shape can be done with the naked eye or by an optical recognition device which can furthermore allow a comparison of the observed shape with the reference form stored in a memory of the device.

Landscapes

• Business, Economics & Management (AREA)
• Accounting & Taxation (AREA)
• Finance (AREA)
• Life Sciences & Earth Sciences (AREA)
• Forests & Forestry (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Printing Methods (AREA)
• Polishing Bodies And Polishing Tools (AREA)
• Turning (AREA)
• Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
• Making Paper Articles (AREA)
• Absorbent Articles And Supports Therefor (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (2)

Family

ID=34778667

Family Applications (1)

Country Status (11)

Cited By (2)

Families Citing this family (8)

Family Cites Families (9)

• 2004
  • 2004-02-11 FR FR0401329A patent/FR2865957B1/fr not_active Expired - Fee Related
• 2005
  • 2005-02-11 PL PL05717624T patent/PL1718441T3/pl unknown
  • 2005-02-11 WO PCT/FR2005/000335 patent/WO2005077622A2/fr not_active Ceased
  • 2005-02-11 BR BRPI0507566-1A patent/BRPI0507566A/pt not_active IP Right Cessation
  • 2005-02-11 ES ES05717624T patent/ES2332004T3/es not_active Expired - Lifetime
  • 2005-02-11 US US10/589,001 patent/US20080042425A1/en not_active Abandoned
  • 2005-02-11 AT AT05717624T patent/ATE439960T1/de not_active IP Right Cessation
  • 2005-02-11 SI SI200530827T patent/SI1718441T1/sl unknown
  • 2005-02-11 EP EP05717624A patent/EP1718441B1/de not_active Expired - Lifetime
  • 2005-02-11 DE DE200560016081 patent/DE602005016081D1/de not_active Expired - Lifetime
  • 2005-02-11 CA CA 2555588 patent/CA2555588A1/fr not_active Abandoned

Non-Patent Citations (1)

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