EP0836939A1 - Printing machine - Google Patents

Printing machine Download PDF

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Publication number
EP0836939A1
EP0836939A1 EP96918946A EP96918946A EP0836939A1 EP 0836939 A1 EP0836939 A1 EP 0836939A1 EP 96918946 A EP96918946 A EP 96918946A EP 96918946 A EP96918946 A EP 96918946A EP 0836939 A1 EP0836939 A1 EP 0836939A1
Authority
EP
European Patent Office
Prior art keywords
mesh
cells
ink
printing
printing machine
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
EP96918946A
Other languages
German (de)
French (fr)
Other versions
EP0836939B1 (en
EP0836939A4 (en
Inventor
Sergei Nicolaevich Maximovsky
Grigory Avramovich Radutsky
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0836939A1 publication Critical patent/EP0836939A1/en
Publication of EP0836939A4 publication Critical patent/EP0836939A4/en
Application granted granted Critical
Publication of EP0836939B1 publication Critical patent/EP0836939B1/en
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
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0831—Machines for printing webs
    • B41F15/0836—Machines for printing webs by means of cylindrical screens or screens in the form of endless belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/40—Inking units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/12—Stencil printing; Silk-screen printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2200/00—Printing processes
    • B41P2200/40—Screen printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/70—Forming the printing surface directly on the form cylinder

Definitions

  • the present invention relates to printing devices. More concretely, the invention relates to means for printing different polygraphic matter, both simple and highly artistic.
  • Printing machines comprising a printing form in the form of a stencil applied on a mesh, means for applying ink onto the form and means for forcing the ink through through cells of the stencil and carrying it to the surface of the material being imprinted.
  • the printing form is made in the form of a mesh covered with a layer of light-sensitive emulsion which upon exposition through a photoform under the effect of UV radiation is hardened on the space portions to be filled. The unhardened portions of the emulsion are washed off.
  • the hardened emulsion is subjected to setting by thermal treatment and is covered with a special composition to protect it against acids or alkalis.
  • ink is applied to the form, the ink being forced through the open cells of the mesh by a doctor blade and is transferred to the paper.
  • the hardened layer is removed from the mesh, which is again covered with a light-sensitive emulsion to prepare the next stencil.
  • a disadvantage of such machines is the necessity of making and setting up a printing form in order to print each run. This process is not only lengthy per se.
  • the fashion in present-day polygraphy is characterized by small runs of the publications, as a result of which the time necessary to prepare a machine for operation becomes comparable with the time spent on printing, i.e. expensive equipment is used ineffectively.
  • At the base of the invention lies the object of creating a printing machine which immediately after finishing printing a preceding publication could begin printing a subsequent publication without replacement of the printing form.
  • a printing form is made in the form of a mesh, all the cells of which are filled with ink, and means for selectively forcing ink through the cells of the mesh is made in the form of a quantum-mechanical oscillator of a light bean, with a device for focusing it to the size of a cell of the mesh and with a device for deflecting that beam over the rows of its cells.
  • the beam of the quantum-mechanical oscillator in accordance with a program, knocks out drops of ink from corresponding cells of the mesh onto paper, and since the ink is applied to all the cells of the mesh of the form in each cycle of printing, there is no need to replace the form in the machine which operates according to a program directly from the computer.
  • the quantum-mechanical oscillator of the light beam be provided with a beam diameter modulator in order to expand, in accordance with the program, the zone of mesh cells which are simultaneously covered by the beam.
  • the printing machine be provided with means for forcefully cleansing the mesh cells of the form of ink not transferred onto the surface of the material being imprinted after completion of one deflection cycle of the light beam.
  • the proposed printing machine comprises a form cylinder 1, made in the form of a mesh with cells 2, and a printing cylinder 3, between which a paper sheet 4 moves.
  • the form cylinder 1 is linked by means of rolls 5 and 6 to a vessel 7 containing ink.
  • a slot nozzle 8, through which compressed air is supplied, is disposed inside the cylinder 1.
  • a means 9 for selectively forcing ink through the cells 2 of the mesh is also disposed inside the cylinder 1.
  • This means is made in the form of a quantum-mechanical oscillator 10 of a light beam 11 with a beam diameter modulator 12, with a device 13 for focusing the beam 11 to the size of a mesh cell and with a device 14 for deflecting that beam along the rows of cells 2.
  • the proposed printing machine operates in the following manner.
  • the form cylinder 1, the printing cylinder 3, the rolls 5, 6 rotate in the direction shown by the arrows, the paper sheet 4 moves and air is forced into the nozzle 8.
  • ink is applied in a uniform thin layer from the vessel 7 onto the mesh of the form cylinder 1, filling its cells 2.
  • the light beam 11 of the quantum-mechanical oscillator 10 is focused, deflected in a horizontal plane along the row of cells 2 of the mesh of the form cylinder 1 and, in accordance with a program, knocks ink out of corresponding cells of the mesh in each of its rows, the ink being transferred to the paper sheet 4.
  • the knocking out of the ink takes place in accordance with the discovery of the "light-hydraulic effect" (Vaccina No. 65, BI No. 19, 1969), wherein when there is absorption of a quantum-mechanical oscillator light beam in a liquid, impact momentum occurs.
  • a fragment of the mesh of the form cylinder 1, from the cells 2 of which ink has been knocked out, is shown in Fig. 2.
  • the cells 2 of the form cylinder 1, from which ink is not transferred to the sheet 4 after passage through the zone of deflection of the light beam 11, are forcefully freed of ink by blowing compressed air from the nozzle 8 through them.
  • the shape of the proposed printing machine is not necessarily cylindrical. It can also be, for example, flat and execute reciprocal motion relative to the beam being deflected transverse thereto.
  • the form can also be stationary, and the quantum-mechanical oscillator beam may be deflected over the whole field thereof.
  • the proposed printing machine can also print multicolored matter. In order to do this it should comprise several of the printing sections described above, and the paper sheet 4 will be sequentially passed between cylinders 1 and 3 of those sections.
  • the printing machine is designed to print different polygraphic matter, both simple and highly artistic.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Printing Methods (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Abstract

The printing machine is designed to print different polygraphic matter without replacement of the printing form upon transition from printing one publication to another.
The machine comprises a printing form in the form of a mesh, all the cells of which are filled with ink, and means for selectively forcing the ink through the mesh cells by means of a quantum-mechanical oscillator light beam.

Description

The present invention relates to printing devices. More concretely, the invention relates to means for printing different polygraphic matter, both simple and highly artistic.
Background Art
Printing machines are known comprising a printing form in the form of a stencil applied on a mesh, means for applying ink onto the form and means for forcing the ink through through cells of the stencil and carrying it to the surface of the material being imprinted. In the known machine, disclosed in Japanese application No. 55-34970, class B41M 1/12, published 11 March 1980, No. 53-108988, the printing form is made in the form of a mesh covered with a layer of light-sensitive emulsion which upon exposition through a photoform under the effect of UV radiation is hardened on the space portions to be filled. The unhardened portions of the emulsion are washed off. The hardened emulsion is subjected to setting by thermal treatment and is covered with a special composition to protect it against acids or alkalis. In the process of printing, ink is applied to the form, the ink being forced through the open cells of the mesh by a doctor blade and is transferred to the paper. After the printing is finished, the hardened layer is removed from the mesh, which is again covered with a light-sensitive emulsion to prepare the next stencil.
A disadvantage of such machines is the necessity of making and setting up a printing form in order to print each run. This process is not only lengthy per se. The fashion in present-day polygraphy is characterized by small runs of the publications, as a result of which the time necessary to prepare a machine for operation becomes comparable with the time spent on printing, i.e. expensive equipment is used ineffectively.
Disclosure of the Invention
At the base of the invention lies the object of creating a printing machine which immediately after finishing printing a preceding publication could begin printing a subsequent publication without replacement of the printing form.
This object is achieved in that a printing form is made in the form of a mesh, all the cells of which are filled with ink, and means for selectively forcing ink through the cells of the mesh is made in the form of a quantum-mechanical oscillator of a light bean, with a device for focusing it to the size of a cell of the mesh and with a device for deflecting that beam over the rows of its cells.
With such an execution of the machine, the beam of the quantum-mechanical oscillator, in accordance with a program, knocks out drops of ink from corresponding cells of the mesh onto paper, and since the ink is applied to all the cells of the mesh of the form in each cycle of printing, there is no need to replace the form in the machine which operates according to a program directly from the computer.
It is advisable that the quantum-mechanical oscillator of the light beam be provided with a beam diameter modulator in order to expand, in accordance with the program, the zone of mesh cells which are simultaneously covered by the beam.
Such a realization of the machine makes it possible to obtain polygraphic matter with a wide range of color gradation.
It is also advisable that the printing machine be provided with means for forcefully cleansing the mesh cells of the form of ink not transferred onto the surface of the material being imprinted after completion of one deflection cycle of the light beam.
Such a realization of the machine eliminates overfilling of the mesh cells of the form, which are not used in one printing cycle, with ink.
Brief Description of the Drawings
The invention will now be explained by a description of concrete embodiments, which do not limit the instant invention, and the accompanying drawings, in which:
  • Fig. 1 shows a printing machine schematically;
  • Fig. 2 shows a fragment of a mesh with cells from which the ink has been forced out by the beam of a quantum-mechanical oscillator.
    • Best Methods of Carrying Out the Invention
    As shown in Fig. 1, the proposed printing machine comprises a form cylinder 1, made in the form of a mesh with cells 2, and a printing cylinder 3, between which a paper sheet 4 moves. The form cylinder 1 is linked by means of rolls 5 and 6 to a vessel 7 containing ink. A slot nozzle 8, through which compressed air is supplied, is disposed inside the cylinder 1. A means 9 for selectively forcing ink through the cells 2 of the mesh is also disposed inside the cylinder 1. This means is made in the form of a quantum-mechanical oscillator 10 of a light beam 11 with a beam diameter modulator 12, with a device 13 for focusing the beam 11 to the size of a mesh cell and with a device 14 for deflecting that beam along the rows of cells 2.
    The proposed printing machine operates in the following manner.
    By means of a drive (not shown in the drawing), the form cylinder 1, the printing cylinder 3, the rolls 5, 6 rotate in the direction shown by the arrows, the paper sheet 4 moves and air is forced into the nozzle 8. By means of rolls 5 and 6, ink is applied in a uniform thin layer from the vessel 7 onto the mesh of the form cylinder 1, filling its cells 2. The light beam 11 of the quantum-mechanical oscillator 10 is focused, deflected in a horizontal plane along the row of cells 2 of the mesh of the form cylinder 1 and, in accordance with a program, knocks ink out of corresponding cells of the mesh in each of its rows, the ink being transferred to the paper sheet 4. The knocking out of the ink takes place in accordance with the discovery of the "light-hydraulic effect" (Diploma No. 65, BI No. 19, 1969), wherein when there is absorption of a quantum-mechanical oscillator light beam in a liquid, impact momentum occurs. A fragment of the mesh of the form cylinder 1, from the cells 2 of which ink has been knocked out, is shown in Fig. 2. The cells 2 of the form cylinder 1, from which ink is not transferred to the sheet 4 after passage through the zone of deflection of the light beam 11, are forcefully freed of ink by blowing compressed air from the nozzle 8 through them.
    The shape of the proposed printing machine is not necessarily cylindrical. It can also be, for example, flat and execute reciprocal motion relative to the beam being deflected transverse thereto.
    The form can also be stationary, and the quantum-mechanical oscillator beam may be deflected over the whole field thereof.
    The proposed printing machine can also print multicolored matter. In order to do this it should comprise several of the printing sections described above, and the paper sheet 4 will be sequentially passed between cylinders 1 and 3 of those sections.
    Industrial Applicability
    The printing machine is designed to print different polygraphic matter, both simple and highly artistic.

    Claims (3)

    1. A printing machine comprising a printing form in the form of a stencil applied on a mesh, a means for applying ink onto the form and a means for forcing the ink through through cells of the stencil and carrying it onto the surface of the material being imprinted, characterized in that the printing form is made in the form of a mesh, all the cells of which are filled with ink, and means for selectively forcing ink through cells of the mesh is made in the form of a quantum-mechanical oscillator of a light beam with a device for focusing it to the size of a mesh cell and a device for deflecting that beam along the rows of cells.
    2. A printing machine according to claim 1, characterized in that the light beam quantum-mechanical oscillator is provided with a beam diameter modulator to widen the zone of mesh cells simultaneously covered.
    3. A printing machine according to claim 1, characterized in that it is provided with means for forcefully cleansing the mesh cells of the form of ink not transferred to the surface of the material being imprinted after completion of one deflection cycle of the light beam.
    EP96918946A 1995-06-20 1996-06-10 Printing machine Expired - Lifetime EP0836939B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    RU95109218 1995-06-20
    RU9595109218A RU2082615C1 (en) 1995-06-20 1995-06-20 Printing machine
    PCT/RU1996/000152 WO1997000774A1 (en) 1995-06-20 1996-06-10 Printing machine

    Publications (3)

    Publication Number Publication Date
    EP0836939A1 true EP0836939A1 (en) 1998-04-22
    EP0836939A4 EP0836939A4 (en) 1998-10-14
    EP0836939B1 EP0836939B1 (en) 2001-11-28

    Family

    ID=20168502

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP96918946A Expired - Lifetime EP0836939B1 (en) 1995-06-20 1996-06-10 Printing machine

    Country Status (7)

    Country Link
    EP (1) EP0836939B1 (en)
    JP (1) JPH11508199A (en)
    KR (1) KR19990022990A (en)
    CN (1) CN1069582C (en)
    DE (1) DE69617430T2 (en)
    RU (1) RU2082615C1 (en)
    WO (1) WO1997000774A1 (en)

    Cited By (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP0947324A1 (en) * 1996-02-19 1999-10-06 MAXIMOVSKY, Sergei Nicolaevich Printing method and printing device for realising the same
    EP1065054A1 (en) * 1999-07-01 2001-01-03 Canon Kabushiki Kaisha Textile printing machine, and printing plate separation apparatus and method
    WO2001002170A1 (en) * 1999-06-30 2001-01-11 OCé PRINTING SYSTEMS GMBH Method and device for printing a base material and cleaning a printing roller
    EP1076608B1 (en) * 1998-02-13 2003-06-25 Stork Prints B.V. Device and method for applying a medium to a substrate, system having a plurality of such devices, and use of such device, method and system
    EP1386732A1 (en) * 2002-08-03 2004-02-04 Koenig & Bauer Aktiengesellschaft Method and device for producing a printing form of a rotary printing machine
    EP1386731A1 (en) * 2002-08-03 2004-02-04 Koenig & Bauer Aktiengesellschaft Method and device for producing a printing form for a rotary printing machine

    Families Citing this family (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1567344B1 (en) 2002-12-06 2007-04-04 Koenig & Bauer Aktiengesellschaft Printing machines with at least one colour support
    JP4969362B2 (en) * 2007-08-06 2012-07-04 株式会社小森コーポレーション Liquid supply device

    Citations (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP0305103A1 (en) * 1987-08-17 1989-03-01 Zed Instruments Limited Method and apparatus for preparing a screen printing screeen

    Family Cites Families (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    SU121802A1 (en) * 1958-12-08 1959-11-30 А.М. Федотов Screen printing method and device for implementing the method
    FR2452380A1 (en) * 1979-03-26 1980-10-24 Framet Injection printer with perforated plate base - is operated by plunger and has ink supply above plunger
    SU992224A2 (en) * 1981-04-23 1983-01-30 за вители Stencil-printing apparatus
    SU1535742A1 (en) * 1987-08-17 1990-01-15 Омский политехнический институт Apparatus for stencil process
    WO1995018020A2 (en) * 1993-12-24 1995-07-06 Carlo Antonio Camorani Silk-screen process for decorating items and associated apparatus

    Patent Citations (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP0305103A1 (en) * 1987-08-17 1989-03-01 Zed Instruments Limited Method and apparatus for preparing a screen printing screeen

    Non-Patent Citations (7)

    * Cited by examiner, † Cited by third party
    Title
    "Matrix Screen Printer" IBM TECHNICAL DISCLOSURE BULLETIN, vol. 20, no. 1, June 1977, pages 440-442, XP002073035 *
    DATABASE WPI Week 8348 30 January 1983 Derwent Publications Ltd., London, GB; Page 002, AN 83-831503 XP002073036 "Screen printing mechanism with ink belt - has air nozzle set beyond screen as belt moves to remove residual ink from belt" & SU 992 224 A (CHERNENKO N B) , 5 February 1983 *
    Diploma no. 65, BI (USSR Bullettin of Inventions) No. 19, 1969 *
    G.A.Askar'yan et al., "A beam of optical quantum generator in liquid", USSR Journal of Experimental and Theoretical Physics, Vol. 44, lssue 6, 1963 *
    H.K. SEITZ AND J.A. VANVECHTEN: "COLOR DISPLAY-PRINTER EMPLOYING CORONA CHARGING OF DYE MOLECULES TO SELECTIVELY COLOR LIQUID FILM AND ELECTROSTATIC MEANS TO TRANSFER INK TO PAPER" IBM TECHINICAL DISCLOSURE BULLETIN, vol. 21, no. 5, October 1978, pages 2130-2131, XP002073052 *
    H.K. SEITZ AND J.H. VANVECHTEN: "PRINTING AND DISPLAY OF INFORMATION BY SELECTIVE PRICKING OF LIQUID FILMS ACROSS THE INTERSTICES IN A SCREEN BY MEANS OF SELECTIVE CORONA CHARGING AND ELECTROSTATIC STRESS" IBM TECHNICAL DISCLOSURE BULLETIN, vol. 21, no. 5, October 1978, pages 2127-2129, XP002073051 *
    See also references of WO9700774A1 *

    Cited By (8)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP0947324A1 (en) * 1996-02-19 1999-10-06 MAXIMOVSKY, Sergei Nicolaevich Printing method and printing device for realising the same
    EP0947324B1 (en) * 1996-02-19 2010-06-09 MAXIMOVSKY, Sergei Nicolaevich Printing method and printing device for realising the same
    EP1076608B1 (en) * 1998-02-13 2003-06-25 Stork Prints B.V. Device and method for applying a medium to a substrate, system having a plurality of such devices, and use of such device, method and system
    WO2001002170A1 (en) * 1999-06-30 2001-01-11 OCé PRINTING SYSTEMS GMBH Method and device for printing a base material and cleaning a printing roller
    US6907826B1 (en) 1999-06-30 2005-06-21 OCé PRINTING SYSTEMS GMBH Method and device for printing a base material and cleaning a printing roller
    EP1065054A1 (en) * 1999-07-01 2001-01-03 Canon Kabushiki Kaisha Textile printing machine, and printing plate separation apparatus and method
    EP1386732A1 (en) * 2002-08-03 2004-02-04 Koenig & Bauer Aktiengesellschaft Method and device for producing a printing form of a rotary printing machine
    EP1386731A1 (en) * 2002-08-03 2004-02-04 Koenig & Bauer Aktiengesellschaft Method and device for producing a printing form for a rotary printing machine

    Also Published As

    Publication number Publication date
    RU95109218A (en) 1997-05-20
    RU2082615C1 (en) 1997-06-27
    KR19990022990A (en) 1999-03-25
    CN1069582C (en) 2001-08-15
    DE69617430D1 (en) 2002-01-10
    EP0836939B1 (en) 2001-11-28
    JPH11508199A (en) 1999-07-21
    CN1192179A (en) 1998-09-02
    WO1997000774A1 (en) 1997-01-09
    DE69617430T2 (en) 2002-08-08
    EP0836939A4 (en) 1998-10-14

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