EP0258099A1 - Verfahren zum Pressvergolden oder zum Markieren auf einem Relief, anschliessend an einen Stahlstichimitationsdruck - Google Patents

Verfahren zum Pressvergolden oder zum Markieren auf einem Relief, anschliessend an einen Stahlstichimitationsdruck Download PDF

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Publication number
EP0258099A1
EP0258099A1 EP87401751A EP87401751A EP0258099A1 EP 0258099 A1 EP0258099 A1 EP 0258099A1 EP 87401751 A EP87401751 A EP 87401751A EP 87401751 A EP87401751 A EP 87401751A EP 0258099 A1 EP0258099 A1 EP 0258099A1
Authority
EP
European Patent Office
Prior art keywords
marking
gilding
relief
printing
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.)
Granted
Application number
EP87401751A
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English (en)
French (fr)
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EP0258099B1 (de
Inventor
Frédéric Lesieur
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
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT87401751T priority Critical patent/ATE70223T1/de
Publication of EP0258099A1 publication Critical patent/EP0258099A1/de
Application granted granted Critical
Publication of EP0258099B1 publication Critical patent/EP0258099B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/06—Powdering devices, e.g. for preventing set-off
    • B41F23/065—Powdering devices, e.g. for preventing set-off for thermography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/02—Dusting, e.g. with an anti-offset powder for obtaining raised printing such as by thermogravure ; Varnishing

Definitions

  • Gilding, printing or hot stamping is a known process used in various industries such as printing, cardboard, factories of plastic materials, bookbinding workshops, etc.
  • the marking principle is as follows: a roll consisting of a polyester film is covered, on one side, with a thin marking film, metallic or not, on which is then deposited a heat-reactive hot-melt adhesive.
  • a browning iron the raised parts of which represent the image to be marked, is heated and pressed against the marking film and the receiving support. Only the parts of the film and of the receiving support in contact and pressure with the raised parts of the browning iron are heated, which allows the reactivated adhesive in these areas to adhere and fix themselves with the marking film on the support. receiver.
  • the transfer of the marking film, from the film to the receiving support takes place, at each cycle, when the pressure is released and the press when opening moves the film away from the support.
  • the metallic film was produced with gold leaf.
  • the strip is vacuum metallized and colored aluminum has replaced gold.
  • Different pigments or decorative marking materials are sometimes substituted for the metallic film.
  • the manufacturers of these marking films offer users a range of products whose decorative effects, much sought after, lead to countless applications.
  • All kinds of plate or roller presses are equipped to carry out this hot stamping and include devices allowing the strip to run intermittently, with a variable advance according to the length of the pattern to be reproduced and systems to heat and maintain in temperature the iron to mark.
  • the pressure required to transfer the film from marking on a card-type receiver support is of the order of 250 Kg / cm2.
  • faults are defined as follows: - transfer machine, press or heating cylinder, very heavy, unwieldy and representing a significant investment, - high cost of the materials to be used such as gilding irons or to repel having repercussions on the cost prices of the printed matter and being very difficult to incorporate into its selling price, mainly in the very frequent cases of prints of little copies, - lack of flexibility of use and too long implementation time of the process limiting its possibilities of development, - need to use highly qualified operators, because they are faced with a set of difficulties to overcome to achieve quality marking.
  • the marking film and the fusible adhesive covering film each have a thickness of the order of a micron and admit, in most cases, only temperature differences and very low pressure.
  • the embossing to obtain the relief is also a matter for specialists, because this extremely delicate operation requires solid experience and mainly when one uses marking irons making it possible to brown and repel simultaneously.
  • the object of the present invention is an extremely simple process, enabling any printer to obtain relief prints coated, on the surface, with the same type of marking film as usually used.
  • the obtaining of relief printing is carried out on the basis of the known principle of thermogravure, by modifying the powder products usually used, with products having particular adhesive properties.
  • the relief printing is then coated with a traditional marking film, the transfer of its support strip being carried out using the adhesive properties of the film forming the relief image.
  • thermogravure which consists in sprinkling a flat impression whose ink is still wet, of a hot-melt powder having the property of melting under the action of the heat generally associated to that of infrared radiation, to form a semi-liquid relief film, which freezes when passing under a jet of fresh air to avoid its deformation and the adhesion of the sheets to one another when these pile up one above the other. Excess powder not retained by the wet ink is continuously vacuumed and recycled.
  • the present invention while using the principle of thermogravure for its relief printing, provides an important variant as regards the powdered materials traditionally used for this process.
  • thermogravure must have physical characteristics allowing them to withstand a significant rise in temperature, without having a tacky surface state, so as to avoid any risk of adhesion of the sheets to each other.
  • the adhesiveness of these powders appears when they pass into the semi-liquid phase.
  • the minimum particle size generally used is of the order of fifty microns. This is not the case in the present invention where one can obtain an impression covered with a marking material with a practically zero relief, starting from powder whose average particle size will be between five and twenty microns, giving a laminated film, depending on the porosity of the support of the order of five to ten microns. In this if the process is applied, a long tunnel oven is avoided since the melting and film-forming state of the fine powder film can be obtained simultaneously by calendering at a slight temperature during the transfer operation, or calendered cold with a slight preheating of the powdery print.
  • One of the essential differences characterizing the present invention resides in the fact of retaining, on the surface of the support, an adhesive layer forming the image to be reproduced by marking, of a variable thickness and always sufficient, whatever the porosity of the object. to be marked, to obtain an easy transfer in all cases.
  • This is not possible in the usual process, because the fusible film is intimately linked to the marking material it covers and can therefore hardly exceed one micron in thickness, without the risk of causing irregular peeling and tearing. of the marking material during its transfer, providing a poor definition of the contours of the image on the receiving medium. This constraint results in the need to use for the transfer of reliefs and very high pressures of the order of 250 Kg / cm2.
  • the process which is the subject of the present invention requires average pressures of the order of 1 to 2 kg / cm 2.
  • An offset printing press 1 Fig. 1 places a form 2 on the feed conveyor 3 of a 1 A heat-etching machine. This form 2 passes successively on the powdering conveyor 4 where it is covered over its entire surface with a film of powder from the powder 5.
  • Cyclone 6 continuously sucks up and recycles up to the inside of the powder container 5 the excess powder not retained by the wet ink.
  • the powdered print only in the printing areas continues its cycle and is conveyed by the fusion conveyor 8 inside the tunnel oven 9 where the powder image becomes a covered image a film in relief in the semi-liquid state which is solidified on the cooling conveyor 10 under the action of the fresh air pulsed by a turbine 11, with adjustable flow rate, blowing inside the perforated box 12.
  • the print 2 whose embossed film is solidified but whose adhesiveness is still very high then passes on the margin conveyor 13 of the transfer device 1 B and under the pressure cylinder 14 where the marking strip 15 is applied to the print 2 to effect the transfer of the marking material.
  • the conveyor 16 conveys the "marked" print to the reception table 17.
  • FIG. 2 represents a top view of the margin and output conveyors of the device for transferring the marking material.
  • Figure 3 shows a front view of the entire transfer device.
  • the pneumatic margin rectifier 13 A Fig. 2 presses by means of compressed air jets at low pressure (about six bars) on the oblique strip 13 B Fig. 2 to straighten and tack the paper on the cleat 13 C Fig. 2.
  • the set of conveyors and cylinders ensuring the advance of the belt is driven using a stepping motor 18 Fig. 2 or direct current provided with an encoder controlled by an electronic device, programmable as a function of the location of the marking areas of the print to be processed.
  • An optical sensor 19 Fig. 2-3 detects the arrival of printed form 2 and starts the marking cycle according to the established program.
  • the marking cycle includes the following functions executed simultaneously: a) advance of the blank marking strip 15 FIG. 3 previously rewound and supported by the axis of the reel 15 A FIG. 1-3 whose drive is provided by the towed reel 15 B Fig. 1-3 recovering from a reel the strip used 15, b) the blank marking strip 15 Fig. 1 and 3 pass under the elastic pressure cylinder 14 Fig. 1 and 3, the pressure of which is exerted via the pneumatic cylinder 14 A FIG. 1 and 3 on the back pressure cylinder 14 B Fig. 1, 2 and 3.
  • the back pressure cylinder 14 B and the outlet conveyor 16 Fig. 1, 2 and 3 are under vacuum through the suction box 20 Fig. 3 fitted with a 20 A helical turbine Fig. 2 and 3, so as to flatten and maintain the print 2 during and at the end of its marking, so as to cause a precise detachment of the marking film.
  • the reception table 17 Fig. 1, 2 and 3 retrieve the form at the end of treatment.
  • the desk 21 Fig. 1 and 2 of the digital control allow programming for each new type of print.
  • the compressor 22 Fig. 3 supplies the air jets 13 A Fig. 2 of the feeder and the pneumatic cylinder 14 A Fig. 1 and 3.
  • the printer wishes to obtain the relief by a traditional embossing, it is enough for him to start from a printed matter whose transfer of marking is obtained using powder of small particle size.
  • the reactivation of the adhesiveness of the film forming the relief can be obtained by means other than heat by using, for example, a hot-melt powder whose adhesiveness of surface will be reactivated by humidity.
  • the granulometry of the powder has no real limit, it will however generally be between 5 and 1000 microns.
  • two powder formulas give good transfer results.
  • the first is similar to powder formulas usually used, modified in order to use the manufacturing waste of these powders.
  • the second is chemically very different and has a lower cost price.
  • - styrene oleophthalic resin 65% - acrylic resin: 15 to 20% - plasticizer like Unimol 66 from Bayer 10 to 15% - microcrystalline wax to adjust the tack 5 to 10%
  • the acrylic resin used could be chosen from the range of water-soluble thermoplastic acrylic resins.
  • a simple ballpoint pen with fatty ink makes it possible to produce a drawing capable of being transformed into relief by dusting and therefore of being "marked” by the process which is the subject of the invention, hence again a potential application. very important.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Methods (AREA)
  • Decoration By Transfer Pictures (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Adhesives Or Adhesive Processes (AREA)
EP87401751A 1986-07-28 1987-07-28 Verfahren zum Pressvergolden oder zum Markieren auf einem Relief, anschliessend an einen Stahlstichimitationsdruck Expired - Lifetime EP0258099B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87401751T ATE70223T1 (de) 1986-07-28 1987-07-28 Verfahren zum pressvergolden oder zum markieren auf einem relief, anschliessend an einen stahlstichimitationsdruck.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8610876A FR2602718A1 (fr) 1986-07-28 1986-07-28 Procede et dispositif de dorure marquage en relief a partir d'une impression thermographique realisee a l'aide d'une poudre thermoadhesive
FR8610876 1986-07-28

Publications (2)

Publication Number Publication Date
EP0258099A1 true EP0258099A1 (de) 1988-03-02
EP0258099B1 EP0258099B1 (de) 1991-12-11

Family

ID=9337775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401751A Expired - Lifetime EP0258099B1 (de) 1986-07-28 1987-07-28 Verfahren zum Pressvergolden oder zum Markieren auf einem Relief, anschliessend an einen Stahlstichimitationsdruck

Country Status (8)

Country Link
US (1) US4867827A (de)
EP (1) EP0258099B1 (de)
JP (1) JPS6399998A (de)
AT (1) ATE70223T1 (de)
CA (1) CA1281937C (de)
DE (1) DE3775144D1 (de)
ES (1) ES2027699T3 (de)
FR (1) FR2602718A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK0431172T3 (da) * 1989-07-04 1996-09-02 Toppan Printing Co Ltd Apparatur til forberedelse af databærekort
US5391247A (en) * 1992-01-24 1995-02-21 Revlon Consumer Products Corporation Hot stamping glass
US5714367A (en) * 1995-05-03 1998-02-03 Signgold Corporation Genuine gold three dimensional sign making blank for computer aided router engraving sign making systems
US20090301649A1 (en) * 2005-10-20 2009-12-10 Man Roland Druckmaschinen Ag Manufacturing method for packaging and advertising means
WO2020194496A1 (ja) * 2019-03-26 2020-10-01 黒田 剛司 熱可塑性合成樹脂製の帯状立体装飾片の製造方法及びその製造装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1930814A (en) * 1931-03-13 1933-10-17 Lipsius Samuel Powdering apparatus
CH328455A (fr) * 1956-04-23 1958-03-15 Hostettler Paul Machine automatique pour effectuer le relief des imprimés
FR2155072A5 (de) * 1971-10-06 1973-05-18 Sarda Jean
EP0044369A1 (de) * 1980-07-18 1982-01-27 Jean Lucien Sarda Thermographische Vorrichtung für Reliefdruck

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1744829A (en) * 1927-07-11 1930-01-28 Dreyfus Camille Process of printing and embossing materials containing thermoplastic derivatives of cellulose
US3440076A (en) * 1965-11-12 1969-04-22 Fox River Paper Corp Raised printing process
JPS4934739B1 (de) * 1970-12-09 1974-09-17
JPS5917653B2 (ja) * 1975-10-11 1984-04-23 永大産業株式会社 化粧板の製造方法
US4079673A (en) * 1975-12-30 1978-03-21 Bernstein Donald J Raised printing on light-transmitting sheet material
DE2735138C3 (de) * 1977-08-04 1981-04-23 Bloss, Werner H., Prof. Dr.-Ing., 7065 Winterbach Verfahren und Vorrichtung zum Umwandeln eines optischen Bildes in ein taktiles Bild
US4724026A (en) * 1985-02-05 1988-02-09 Omnicrom Systems Corporation Process for selective transfer of metallic foils to xerographic images

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1930814A (en) * 1931-03-13 1933-10-17 Lipsius Samuel Powdering apparatus
CH328455A (fr) * 1956-04-23 1958-03-15 Hostettler Paul Machine automatique pour effectuer le relief des imprimés
FR2155072A5 (de) * 1971-10-06 1973-05-18 Sarda Jean
EP0044369A1 (de) * 1980-07-18 1982-01-27 Jean Lucien Sarda Thermographische Vorrichtung für Reliefdruck

Also Published As

Publication number Publication date
US4867827A (en) 1989-09-19
JPS6399998A (ja) 1988-05-02
FR2602718A1 (fr) 1988-02-19
EP0258099B1 (de) 1991-12-11
ES2027699T3 (es) 1992-06-16
DE3775144D1 (de) 1992-01-23
CA1281937C (en) 1991-03-26
ATE70223T1 (de) 1991-12-15

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