GB978408A - Arrangement and process for electrostatic printing - Google Patents

Arrangement and process for electrostatic printing

Info

Publication number
GB978408A
GB978408A GB44989/63A GB4498963A GB978408A GB 978408 A GB978408 A GB 978408A GB 44989/63 A GB44989/63 A GB 44989/63A GB 4498963 A GB4498963 A GB 4498963A GB 978408 A GB978408 A GB 978408A
Authority
GB
United Kingdom
Prior art keywords
apertures
conductive
stencils
web
screens
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.)
Expired
Application number
GB44989/63A
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.)
Electrostatic Printing Corp of America
Original Assignee
Electrostatic Printing Corp of America
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 Electrostatic Printing Corp of America filed Critical Electrostatic Printing Corp of America
Publication of GB978408A publication Critical patent/GB978408A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G17/00—Electrographic processes using patterns other than charge patterns, e.g. an electric conductivity pattern; Processes involving a migration, e.g. photoelectrophoresis, photoelectrosolography; Processes involving a selective transfer, e.g. electrophoto-adhesive processes; Apparatus essentially involving a single such process
    • 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
    • B41M1/125—Stencil printing; Silk-screen printing using a field of force, e.g. an electrostatic field, or an electric current
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/14—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by electrographic printing, e.g. xerography; by magnetographic printing
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/37—Printing employing electrostatic force

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Printing Methods (AREA)

Abstract

978,408. Printing-apparatus. ELECTROSTATIC PRINTING CORPORATION OF AMERICA. Nov. 14, 1963 [Dec. 17, 1962], No. 44989/63. Heading B6C. An electrostatic printing device comprises means for establishing an electric field between an electrode 10 and a conductive screen 12 having apertures 12A therein arranged in a pattern desired to be printed, a rotating brush 20 or other means for applying a mixture of two types of powder having opposite triboelectric polarity properties from a container 22 to the apertures 12A of the screen so that one of the powders passes through the apertures and on to a shell of paper 14 located between the electrodes 10, 12, and means 18 for reversing the polarity of the electrodes whereby the other powder passes through the apertures on to the paper 14. The powder particles may consist of a mixture of two differently coloured finely-ground resins and in the embodiment of Fig. 2 three stencils 30, 32, 34 are mounted on an endless belt 36 and are provided with conductive tabs 30A, 32A and 34A adapted to be engaged by a contact brush 72. The patterns in the screens may be complementary and may be printed in turn on a web 46 beneath the upper electrode 44 in different colours. The programme for the printing is automatically controlled by a circuit including a pulse generator 50, actuated on rotation of the belt rollers 38, 40, a counter 54, a relay 66 and a double-throw switch 68. Two rows of stencils may be arranged side-byside on the endless belt so as to pass beneath a pair of upper electrodes, Fig. 3 (not shown), and the web, if conductive, may itself form the upper electrode, Fig. 4 (not shown). In the embodiment of Fig. 6, two stencil screens 124 and 126 are arranged one on each side of a web 122 and the screens are formed with conductive portions 124A, 124B and 126A, 126B, the respective screen portions being separated by an insulating portion. Curved stencils may be used according to the invention to print on bottles, fruit, and curved wooden and ceramic surfaces.
GB44989/63A 1962-12-17 1963-11-14 Arrangement and process for electrostatic printing Expired GB978408A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US245321A US3218968A (en) 1962-12-17 1962-12-17 Multicolor electrostatic printing

Publications (1)

Publication Number Publication Date
GB978408A true GB978408A (en) 1964-12-23

Family

ID=22926195

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44989/63A Expired GB978408A (en) 1962-12-17 1963-11-14 Arrangement and process for electrostatic printing

Country Status (4)

Country Link
US (1) US3218968A (en)
CH (1) CH435333A (en)
DE (1) DE1277875B (en)
GB (1) GB978408A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3301179A (en) * 1965-03-15 1967-01-31 Owens Illinois Inc Electrostatic printing with density control provided by charge measuring means
US3343483A (en) * 1965-03-15 1967-09-26 Unimark Corp Electrostatic printing with stencils mounted on a drum
US3392667A (en) * 1965-06-07 1968-07-16 Interchem Corp Multicolor electrostatic printing
US3302560A (en) * 1965-06-11 1967-02-07 Mousanto Company Semi-automatic electrostatic printing system having moving screen
US3302579A (en) * 1965-08-25 1967-02-07 Monsanto Co Electrostatic printing with oscillating screen frame and dual printing at a single station
US3302580A (en) * 1965-08-25 1967-02-07 Monsanto Co Electrostatic printing with rotating screen frame and plural print stations
US3402659A (en) * 1966-08-29 1968-09-24 Owens Illinois Inc Electrical printing processes employing two fields of different strengths
US3589283A (en) * 1969-02-19 1971-06-29 Electrostatic Printing Corp Multicolor electrostatic printing system
US3665856A (en) * 1970-02-24 1972-05-30 Heller William C Jun Printing method using electric through-field to indelibly lodge particles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103445A (en) * 1963-09-10 Method of developing an electrostatic
US2890968A (en) * 1955-06-02 1959-06-16 Rca Corp Electrostatic printing process and developer composition therefor
US3081698A (en) * 1960-03-04 1963-03-19 Electrostatic Printing Corp Electrostatic printing system

Also Published As

Publication number Publication date
DE1277875B (en) 1968-09-19
CH435333A (en) 1967-05-15
US3218968A (en) 1965-11-23

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