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  • careprint
    Keymaster
    April 22, 2022 at 1:41 pm
    Post count: 4
    #3202

    Misregister in multi color prints

    Ink

    Cliche

    Problem
    1. Individual motifs not correctly aligned.

    Solution
    1. If motifs are all on one cliche, film must be corrected and new cliche must be produced.

    Pad

    Problem
    1. Pads mounted off center.
    2. Pads not same shape.
    3. Pads not of same hardness.
    4. Head stroke not same over cliche and substrate material.

    Solution
    1. Readjust pad.
    2. Replace pads with ones of correct shape.
    3. All pads should be of same Shore hardness.
    4. Adjust head stroke.

    Substrate

    Problem
    1. Material is pliable.

    Solution
    1. Switch to different material.

    Other

    Problem
    1. Jig not perfect.
    2. Carre, adjustable, or rotary indexing table inaccurate.
    3. Mounting screws not tight.

    Solution
    1. Check for play in jig, refabricate as needed.
    2. Check indexing.
    3. Screws not properly tightened during initial setup; they become loose during printing operation. Tighten screws.

    SPECIAL NOTE

    The simplest way to contain these deficiencies is to produce a new cliche with precisely registered film.

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