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WO1994005501A1 - Systeme de frappe auto-encreur - Google Patents

Systeme de frappe auto-encreur Download PDF

Info

Publication number
WO1994005501A1
WO1994005501A1 PCT/AU1993/000464 AU9300464W WO9405501A1 WO 1994005501 A1 WO1994005501 A1 WO 1994005501A1 AU 9300464 W AU9300464 W AU 9300464W WO 9405501 A1 WO9405501 A1 WO 9405501A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet material
embossed
indicia
embossing
plates
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/AU1993/000464
Other languages
English (en)
Inventor
Dignan Herbert Rayner
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.)
Hilglade Pty Ltd
Original Assignee
Hilglade Pty Ltd
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 Hilglade Pty Ltd filed Critical Hilglade Pty Ltd
Priority to US08/397,185 priority Critical patent/US5622106A/en
Priority to AU48096/93A priority patent/AU712234B2/en
Publication of WO1994005501A1 publication Critical patent/WO1994005501A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/24—Pressing or stamping ornamental designs on surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/02—Apparatus or machines for carrying out printing operations combined with other operations with embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/02—Dies; Accessories
    • B44B5/026—Dies

Definitions

  • This invention relates to a self-inking 5 embossing system.
  • the invention also relates to an embossing system where the embossing extends above, and below, the material embossed.
  • Each plate has at least two zones. In at 0 least one zone, the desired image is positively embossed into the paper in that zone. In the other zone(s), the desired image is negatively embossed out of the paper in that zone.
  • Each plate is made up with two forms of 5 protuberances - (a) those that produce the desired image (ie. the signature, seal and/or associated security background(s) ; and (b) those that form the neutral portions of the plate which are only there to ensure that the desired image is made visible, or is expressed Q or embossed into or out of, the sheet material.
  • sheet material shall include paper, 5 plasticised paper, fabric, card, cardboard, sheet plastics, metal foil, laminated sheets or the like;
  • positive plate or “positive plate portion” means the plate or plate portion has at least 5 one ridge or protuberance to be impressed into the sheet material
  • negative plate or “negative plate portion” means the plate or plate portion has at least one recess or groove into which the sheet material is impressed;
  • indicia includes letter(s); word(s); signature(s) ; logos; seals; drawings; graphics; or the like; and/or a combination of two or more of these.
  • Cheques or other negotiable documents can be stolen and forged signatures (or other authorities) applied thereto, or the whole documents can be forged.
  • the signature(s) are printed and embossed onto the paper of the cheques.
  • embossing system where the indicia is simultaneously printed and embossed in the sheet material. It is a further preferred object to provide an embossing system where the resultant embossing (and printing) provides a "mechanical fingerprint" in the sheet material which is extremely difficult, if not impossible, to forge. It is a still further preferred object to provide an embossing system where the sheet material is provided with a computer identifiable (or recognisable) "fingerprint".
  • the present invention resides in an embossing system to emboss at least one indicia into sheet material, including: a first embossing plate; and a second embossing plate, wherein: the first embossing plate incorporates at least one positive plate portion and at least one negative plate portion; and the second embossing plate incorporates a respective complementary negative plate portion and a respective complementary positive plate portion complementary thereto; so arranged that at least one portion of the indicia is positively embossed in the sheet material and at least one other portion of the indicia is simultaneously negatively embossed in the sheet material.
  • the positively embossed portion of the indicia may surround, or be wholly or partly surrounded by, the negatively embossed portion of the indicia, or vice versa.
  • Ink may be applied to the positive plate portion of at least one of the plates to enable the indicia to be simultaneously inked onto, and embossed into, the sheet material.
  • an ink ribbon may be interposed between one (or both) of the plates and the sheet material to enable the indicia to be simultaneously inked onto, and embossed into, the sheet material.
  • the height of the ridge(s) or protuberance(s) on the positive plate portion(s) equals the depth of their complementary recess(es) or groove(s) in the negative plate portion(s).
  • the distance between the top of each ridge or protuberance and the bottom of its complementary recess or groove is greater than the thickness of the sheet material, or of the combined thickness of the sheet material and ink or ink ' ribbon.
  • the distance is in the range of 0.03-0.lmm, more preferably 0.03-0.05mm, greater than the thickness of the sheet material, or of the combined thickness of the sheet material and ink or ink ribbon.
  • the width of the recess(es) or grooves exceeds the width of their complementary ridge(s) or protuberance(s) .
  • the difference in widths is just greater than twice the thickness of the sheet material, or twice the combined thickness of the sheet material and the ink ribbon, being preferably greater in the range of 0.08-0.18mm, but not more than 0.4mm.
  • the distance between the side wall of a recess and the adjacent side wall of the complementary ridge or protuberance exceeds the thickness of the sheet material, or the combined thickness of the sheet material and the ink ribbon, by not more than 0.2mm (more preferably 0.09mm), most preferably in the range of 0.04-0.075mm.
  • each plate is formed with a photosensitive polymer or nylon film layer bonded to a plastics or metal backing plate (mountable in an embossing machine).
  • the ridge(s), protuberance(s) , recess(es) or groove(s) are formed in the film layer of each plate.
  • the positively embossed portion(s) of the indicia appear on the sheet material as substantially solid lines.
  • the negatively embossed portion(s) of the indicia appear on the sheet material as lines bordering the (raised) portions of the desired image.
  • the neutral portions of the plates are maintained in spaced relationship as the sheet material is embossed to prevent inking in the neutral portions.
  • the side walls of the ridges or protuberances and recesses or grooves are perpendicular to the neutral portions, but the walls may be inclined thereto.
  • the present invention resides in a method of embossing an indicia in sheet material employing the embossing system hereinbefore described, the method including the steps of:
  • ink may be applied to the positive plate portion(s) of at least one of the plates before step (a).
  • an ink ribbon may be interposed between the sheet material and the plate or plates before the plates are brought together in step (a).
  • FIG 1 is a plan view of an indicia embossed in, and printed on, a sheet of paper or the like;
  • FIG 2 is a section view taken on line 2-2 on
  • FIG 1 A first figure.
  • FIG 3 is a plan view of the bottom plate for embossing the indicia of FIG 1 (shown in reverse or mirror for easier understanding) ;
  • FIG 4 is a sectional view, on line 4-4 on FIG.
  • FIG 5 is a sectional view, on an enlarged scale, showing the simultaneous inking and embossing of a sheet of paper or the like;
  • FIG 6 is a sectional side view of an alternative embodiment for spacing the plate.
  • FIG 7 is a sectional side view of an alternative embodiment for simultaneously inking and embossing a sheet of paper or the like.
  • the indicia 10 comprising the letters "HLE” on a background of diagonal lines/stripes 11, is embossed and printed on a sheet of paper 20 or like material.
  • the central zone 12 of the indicia 10, where the indicia appears as substantially solid lines, or fine border lines, is embossed positively, ie. downwardly below the plane of the paper - see FIG 2.
  • the border zone 13 of the indicia 10, around the central zone 12, is embossed negatively, ie. above the plane of the paper 20, and the indicia appears as border lines around the raised portions of the desired image in the paper sheet 20.
  • the indicia 10 is embossed using a pair of complementary embossing plates in an embossing machine 30 which has a fixed upper platen 31 and movable lower platen 32.
  • Both the top plate 40 and bottom plate 50 have a layer of photosensitive polymer 41, 51 on a metal backing plate 42, 52 mountable on a respective platen 31, 32 (or roller) in the embossing machine 30.
  • Each plate 40, 50 has a respective positive plate portion 43, 53 and an aligned, complementary negative plate portion 44, 54.
  • the height of the ridges or protrusions 60 in the positive plate portions 43, 53 is substantially equal to the depth of the recess or groove 61 in the negative plate portions 44, 54, but the platens 31, 32 control the relative movement of the plates 40, 50 so that the distance between the top of a ridge or protuberance 60 and the bottom of its aligned, complementary recess or groove 61 is not less than the thickness of the paper sheet 20 being embossed.
  • Each recess or groove 61 has a width which exceeds the width of its aligned ridge or protuberance by not less than twice the thickness of the paper sheet 20 plus the inking ribbon 80.
  • the indicia 10 is simultaneously positively and negatively embossed in the paper sheet 20 in the respective zones 12, 13.
  • dripless ink may be applied to the ridges or protuberances 60 of the positive plate portion 43 of the top plate 40 by an inking roller 70 before the paper sheet is placed between the plates 40, 50.
  • an inking roller 70 As the plates 40, 50 are brought together so that the distance between their neutral portions is not less than the thickness of the paper sheet 20, only the positively embossed zone 12 of the indicia will be inked.
  • an ink ribbon 80 (which may have one or more coloured inks (eg. red/green/blue) on a carrier) is laid on the paper sheet 20 before it is embossed, or the ribbon 80 may be fed past the top plate 40 by a suitable feed and guide system (not shown) in the embossing machine 30.
  • the height of the ridges 60 and the depth of the recesses 61 are equal, but the travel of the bottom plate 50 is controlled so that the neutral portions 45, 55 do not press on the ink ribbon 80 and paper sheet 20, so no inking occurs in these areas. (As shown in FIG 6, the travel can be controlled by stops 34 between the plates 40, 50.)
  • the relative travel of the plates 40, 50 is preferably controlled by the braking action of the paper sheet 20 as it is embossed.
  • the width of each recess 61 exceeds the width of its respective ridge 60 by an amount less than 0.4mm greater than twice the combined thickness of the paper sheet 20 and ink ribbon 80, ie. the distance between a side wall of the recess 61 and the adjacent side wall of the ridge 60 does ' not exceed the combined thickness of the paper sheet 20 and ink ribbon 80 by more than 0.2mm (more preferably 0.15mm).
  • the paper sheet 20 is inked on the outerside faces of this raised embossing to form "shadow" or border lines therearound, the paper sheet being stretched about the corners 61A of the recesses 60 in the negative plate portions 44, 54.
  • the friction between the paper sheet 20 and ink ribbon 80, and the plates 40, 50 controls the relative travel of the plates 40, 50 so that the neutral portions 45, 55 thereof do not come into contact.
  • the braking force can be selectively varied to control the relative travel of the plates 40, 50 as the embossing and inking step is effected.
  • the braking effect must operate before the plates come into contact. If the paper is too light, the plates will come into full contact and the whole area will be inked. (Increasing the paper thickness. eg.
  • the operation of the plates 40, 50 is determined on a trial and error basis on the paper to be embossed, and the depth of the embossing for a set weight (ie. GSM) of paper determined by varying the pressure applied to the plates and the relative distances between the side walls of the ridges and recesses. If the pressure applied to the plate is increased, the embossing depth is increased. Generally, each embossing machine has controls to enable the pressure to be regulated.
  • GSM set weight
  • the relative travel of the plates 40, 50 can be controlled by the provision of inclined walls on the ridges 160 and the recesses 161 which generate a wedging action between the plates.
  • the system is applicable to the simultaneously positive and negative embossing, and simultaneous inking of indicia in or on sheet material including: (a) paper; (b) plasticised paper;
  • the ridges or protuberances, and the recesses or grooves, must be accurately formed on the plates 40, 50 and the plates 40, 50 must be accurately aligned in use, to produce the desired results.
  • the embossing of the sheet material 10 by the plates 40, 50 generates a mechanical fingerprint which is individual because the plates 40, 50 are hand-made and the tolerances are so fine that, when the plates are being made, any slight variations that invariably arise when making an individual object in a pressure situation (ie. a time critical environment) visually appear as differences in the plates.
  • the plates 40, 50 are made out of photosensitive polymer and are hand washed under critical time conditions to produce the required result.
  • the critical time conditions are applicable because if the plates are not finished within a very short critical time phase, the plate profiles fall off. (Because the braking process is used to stop the plates 40, 50, any infinitesimally small differences in the walls of the recesses or ridges appear as visible appearances on the indicia - appearing in the signature as differences in the amount of pressure and ink applied to the paper.
  • the operator is operating at such a critical speed that it is impossible to counterfeit the exact plate tolerances of the originals which are in the order of hundredths of a millimetre.
  • the resulting three-dimensional mechanical fingerprint embossed in the sheet material 20 can be scanned into a computer by scanning equipment and can be read and identified by using systems similar to those already developed in the United States of America for cross checking human fingerprints. In this case, however, the fingerprint can be read simultaneously on the front and the rear of the paper 20.
  • the rear fingerprint is created by passing it over firm ink rollers or a similar device, which will then put ink only on the raised portion of the paper (in the same way a human fingerprint is obtained from the raised portions in the skin on the finger).
  • the two scanned images, front and rear, will then have to correlate exactly for the signal to be given that it is correct.
  • This fingerprint can then be scanned by the fingerprint scanning processors to produce a double sided fingerprint, or two different fingerprints of the same signature and seal, on different sides of the paper that must be aligned and correlate exactly to give a positive identification.
  • the process will greatly enhance the cheque processing abilities of the banks and provide a major asset to the banks in producing a high speed, extremely accurate, signature recognition system. It is extremely accurate and very difficult to copy because it is two sided - each of which is different- and both sides have to be aligned exactly to give a positive identification.
  • the present invention provides a high quality, secure embossing and inking system.

Landscapes

  • Credit Cards Or The Like (AREA)
  • Printing Methods (AREA)

Abstract

Système de frappe permettant de former simultanément la marque positive et négative (c'est-à-dire en creux et en relief) d'un timbre (10) dans un matériau (20) de feuille comprenant des plaques supérieure (40) et inférieure (50) présentant chacune respectivement des zones (43/53, 44/54) de plaque de frappe positive et négative qui sont alignées et complémentaires et disposées de sorte que pendant la phase de frappe les parties neutres (45/55) des plaques (40/50) n'exercent pas de pression sur le matériau (20) de feuille. Pour imprimer et frapper simultanément le timbre (10), on applique de l'encre sur une plaque (40) à l'aide d'un ruban encreur (80) placé entre le matériau (20) de feuille et une plaque (40).
PCT/AU1993/000464 1992-09-09 1993-09-09 Systeme de frappe auto-encreur Ceased WO1994005501A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US08/397,185 US5622106A (en) 1992-09-09 1993-09-09 Self-inking embossing system
AU48096/93A AU712234B2 (en) 1992-09-09 1993-09-09 Self-inking embossing system

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
AUPL4593 1992-09-09
AUPL459392 1992-09-09
AUPL8853 1993-05-19
AUPL885393 1993-05-19
AU9300391 1993-07-30
ATPCT/AU93/00391 1993-07-30

Publications (1)

Publication Number Publication Date
WO1994005501A1 true WO1994005501A1 (fr) 1994-03-17

Family

ID=27156869

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1993/000464 Ceased WO1994005501A1 (fr) 1992-09-09 1993-09-09 Systeme de frappe auto-encreur

Country Status (2)

Country Link
MY (1) MY108715A (fr)
WO (1) WO1994005501A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0743187A1 (fr) * 1995-05-16 1996-11-20 Christian Vettor Procédé de marquage d'une plaquette par estampage à froid avec transfert-pressage simultané de colorant et plaquette ainsi obtenue
WO1997045266A1 (fr) * 1996-05-27 1997-12-04 New Toyo Aluminium Paper Product Co. (Pte) Ltd. Feuille stratifiee et son procede de fabrication
US6248198B1 (en) 1996-05-27 2001-06-19 New Toyo Aluminium Paper Product Co. (Pte) Ltd. Process for manufacture of a laminated sheet
WO2017041896A3 (fr) * 2015-09-11 2017-08-24 Giesecke & Devrient Gmbh Dispositifs et procédé pour produire un élément de sécurité comportant une structure optiquement variable

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1528988A (en) * 1975-12-06 1978-10-18 Johns Manville Deeply embossed sheet product and method and apparatus for the production thereof
DE3041869A1 (de) * 1980-11-06 1982-07-29 Aluminiumwerk Tscheulin Gmbh, 7835 Teningen Praegewalze
DE3345886A1 (de) * 1982-12-20 1984-06-20 Kimberly-Clark Corp., Neenah, Wis. Praegeverfahren und erzeugnis

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1528988A (en) * 1975-12-06 1978-10-18 Johns Manville Deeply embossed sheet product and method and apparatus for the production thereof
DE3041869A1 (de) * 1980-11-06 1982-07-29 Aluminiumwerk Tscheulin Gmbh, 7835 Teningen Praegewalze
DE3345886A1 (de) * 1982-12-20 1984-06-20 Kimberly-Clark Corp., Neenah, Wis. Praegeverfahren und erzeugnis

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0743187A1 (fr) * 1995-05-16 1996-11-20 Christian Vettor Procédé de marquage d'une plaquette par estampage à froid avec transfert-pressage simultané de colorant et plaquette ainsi obtenue
FR2734202A1 (fr) * 1995-05-16 1996-11-22 Vettor Christian Procede de marquage d'une plaquette par estampage a froid avec transfert-pressage simultane de colorant et plaquette ainsi obtenue
WO1997045266A1 (fr) * 1996-05-27 1997-12-04 New Toyo Aluminium Paper Product Co. (Pte) Ltd. Feuille stratifiee et son procede de fabrication
AU715285B2 (en) * 1996-05-27 2000-01-20 New Toyo Aluminium Paper Product Co (Pte) Ltd Laminated sheet and process for manufacture of a laminated sheet
US6248198B1 (en) 1996-05-27 2001-06-19 New Toyo Aluminium Paper Product Co. (Pte) Ltd. Process for manufacture of a laminated sheet
WO2017041896A3 (fr) * 2015-09-11 2017-08-24 Giesecke & Devrient Gmbh Dispositifs et procédé pour produire un élément de sécurité comportant une structure optiquement variable
EP3513972A1 (fr) * 2015-09-11 2019-07-24 Giesecke+Devrient Currency Technology GmbH Plaque d'estampage flexible pour une presse à feuilles de l'impression de sécurité

Also Published As

Publication number Publication date
MY108715A (en) 1996-11-30

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