FR2444300A1 - Procede et dispositif pour la comparaison de couleurs - Google Patents

Procede et dispositif pour la comparaison de couleurs

Info

Publication number
FR2444300A1
FR2444300A1 FR7834925A FR7834925A FR2444300A1 FR 2444300 A1 FR2444300 A1 FR 2444300A1 FR 7834925 A FR7834925 A FR 7834925A FR 7834925 A FR7834925 A FR 7834925A FR 2444300 A1 FR2444300 A1 FR 2444300A1
Authority
FR
France
Prior art keywords
printing
printing machine
colour
supplying ink
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.)
Pending
Application number
FR7834925A
Other languages
English (en)
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.)
ROLAND EMBALLAGES
Original Assignee
ROLAND EMBALLAGES
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 ROLAND EMBALLAGES filed Critical ROLAND EMBALLAGES
Priority to FR7834925A priority Critical patent/FR2444300A1/fr
Publication of FR2444300A1 publication Critical patent/FR2444300A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/005—Ink viscosity control means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control
    • B41F33/0045—Devices for scanning or checking the printed matter for quality control for automatically regulating the ink supply
    • 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
    • B41M1/14—Multicolour printing

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

Procédé pour commander un processus en fonction de la couleur d'objets théoriquement identiques défilant en continu. Selon l'invention, ce procédé est caractérisé en ce que, par l'intermédiaire d'un dispositif opto-électronique, on détecte successivement lesdits objets défilant les uns derrières les autres et on engendre pour chacun de ceux-ci un signal électrique représentatif de sa couleur, après quoi on compare ce signal électrique à un signal de référence représentatif de l'intensité désirée pour la couleur, et en ce que, avec le signal de comparaison ainsi obtenu, on commande ledit processus. Impression offset, héliogravure, etc., tri d'objets d'après leur couleur, etc.
FR7834925A 1978-12-12 1978-12-12 Procede et dispositif pour la comparaison de couleurs Pending FR2444300A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7834925A FR2444300A1 (fr) 1978-12-12 1978-12-12 Procede et dispositif pour la comparaison de couleurs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7834925A FR2444300A1 (fr) 1978-12-12 1978-12-12 Procede et dispositif pour la comparaison de couleurs

Publications (1)

Publication Number Publication Date
FR2444300A1 true FR2444300A1 (fr) 1980-07-11

Family

ID=9215976

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7834925A Pending FR2444300A1 (fr) 1978-12-12 1978-12-12 Procede et dispositif pour la comparaison de couleurs

Country Status (1)

Country Link
FR (1) FR2444300A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4493993A (en) * 1982-11-22 1985-01-15 Sperry Corporation Apparatus for optically detecting ink droplets
US4535693A (en) * 1982-09-08 1985-08-20 G.D. Societa Per Azioni Device for dispensing viscous materials
FR2632879A1 (fr) * 1988-06-17 1989-12-22 Guerin Sarl Ets Gaby Dispositif de tri optique d'objets selon leur couleur, en particulier de morceaux de verre

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535693A (en) * 1982-09-08 1985-08-20 G.D. Societa Per Azioni Device for dispensing viscous materials
US4493993A (en) * 1982-11-22 1985-01-15 Sperry Corporation Apparatus for optically detecting ink droplets
FR2632879A1 (fr) * 1988-06-17 1989-12-22 Guerin Sarl Ets Gaby Dispositif de tri optique d'objets selon leur couleur, en particulier de morceaux de verre

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