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  • lb
    hi everyone! i m a letterpress newbie and i m working on a 1-color poster on chipboard. i m using yellow (bright, rich yellow, not pastel-ly yellow) and i m
    Message 1 of 3 , Dec 1, 2006
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      hi everyone!

      i'm a letterpress newbie and i'm working on a 1-color poster on chipboard. i'm using yellow
      (bright, rich yellow, not pastel-ly yellow) and i'm wondering if there's a way to achieve 100%
      or near 100% opacity so that it would be legible on the chipboard.

      would you print white first, then print yellow over that? print it twice?

      any advice/tips would be very much appreciated!

      best,
      LB
    • speedgray@aol.com
      LB: You have several options, depending upon how much effort you want to expend. For best results, print at least one pass of the image using opaque white;
      Message 2 of 3 , Dec 1, 2006
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        LB:


        You have several options, depending upon how much effort you want to expend.

        For best results, print at least one pass of the image using opaque white;
        two bumps would be better. Let the ink dry before putting down another "layer."
        This is called dry trapping.

        Next, after the opaque white is dry, print the yellow. Best would be to use
        an opaque yellow. Second best, a transparent yellow over the white. Opaque
        color has a lot of titianium dioxide in it (white stuff) to make the ink opaque.
        You can always tell if you are using a transparent or opaque ink as soon as
        you open the can. The opaque ink will have the same mass color as the color
        you want to print. A transparent ink will have mass color much darker. Like
        opaque yellow looks yellow; transparent yellow looks baby-shit brown. Opaque
        red looks like garnet, etc.

        Hope this helps.

        Speed Gray, APA 736
        Letterpress Green Sheet
        Ada, MI


        [Non-text portions of this message have been removed]
      • lb
        Speed Gray-- Thanks very much for all your suggestions! Best, LB
        Message 3 of 3 , Dec 3, 2006
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          Speed Gray--
          Thanks very much for all your suggestions!
          Best,
          LB

          --- In PPLetterpress@yahoogroups.com, speedgray@... wrote:
          >
          > LB:
          >
          >
          > You have several options, depending upon how much effort you want to expend.
          >
          > For best results, print at least one pass of the image using opaque white;
          > two bumps would be better. Let the ink dry before putting down another "layer."
          > This is called dry trapping.
          >
          > Next, after the opaque white is dry, print the yellow. Best would be to use
          > an opaque yellow. Second best, a transparent yellow over the white. Opaque
          > color has a lot of titianium dioxide in it (white stuff) to make the ink opaque.
          > You can always tell if you are using a transparent or opaque ink as soon as
          > you open the can. The opaque ink will have the same mass color as the color
          > you want to print. A transparent ink will have mass color much darker. Like
          > opaque yellow looks yellow; transparent yellow looks baby-shit brown. Opaque
          > red looks like garnet, etc.
          >
          > Hope this helps.
          >
          > Speed Gray, APA 736
          > Letterpress Green Sheet
          > Ada, MI
          >
          >
          > [Non-text portions of this message have been removed]
          >
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