COLOR CONTROL PATTERN FOR THE OPTICAL MEASUREMENT OF COLORS PRINTED ON A SHEET OR WEB SUBSTRATE BY MEANS OF A MULTICOLOR PRINTING PRESS AND USES THEREOF

    公开(公告)号:ZA201303426B

    公开(公告)日:2014-07-30

    申请号:ZA201303426

    申请日:2013-05-10

    Applicant: KBA-NOTASYS SA

    Abstract: There is described a color control pattern (CP) for the optical measurement of colors printed on a sheet-like or web-like substrate (S) by means of a multicolor printing press, especially by means of a multicolor security printing press, which substrate (S) exhibits an effective printed region (EF) having a multicolor printed image comprising a plurality of juxtaposed colored areas (A-H) printed with a corresponding plurality of printing inks of different colors, wherein the color control pattern (CP) is printed in a margin portion (lm) of the substrate (S) next to the effective printed region (EF). The color control pattern (CP) comprises one or more color control strips (a-d) extending transversely to a direction of transport (T) of the substrate (S), each color control strip (a-d) comprising a plurality of distinct color control fields (CF, CF A to CF H ) consisting of printed fields of each relevant printing ink that is printed in the effective printed region (EF). The color control fields (CF, CF A to CF H ) are coordinated to actual usage of the relevant printing inks in the effective printed region (EF) and are positioned transversely to the direction of transport (T) of the substrate (S) at locations corresponding to actual positions where the relevant printing inks are applied in the effective printed region (EF).

    INSPECTION SYSTEM FOR IN-LINE INSPECTION OF PRINTED MATERIAL PRODUCED ON AN INTAGLIO PRINTING PRESS

    公开(公告)号:CA2802326A1

    公开(公告)日:2011-12-29

    申请号:CA2802326

    申请日:2011-06-24

    Applicant: KBA NOTASYS SA

    Abstract: There is described an inspection system (50) for in-line inspection of sheet or web material on an intaglio printing press, wherein the inspection system comprises an optical quality control apparatus for carrying out inspection of a printed area on a printed side of the sheet or web material, the optical quality control apparatus including a camera system (55) with one or more camera units each comprising at least one line-scan camera (56) for scanning and acquiring an image of the printed area while the sheet or web material is being transported in the intaglio printing press past the camera system (55). A location of the at least one line-scan camera (56) in the intaglio printing press along a delivery path of the sheet or web material is such that cyclical vibrations that spread periodically throughout the intaglio printing press during operation of the intaglio printing press do not occur while the camera system (55) is scanning the printed area of the sheet or web material and acquiring a complete image of the printed area.

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