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Re: Kreen and film cleaner

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  • Casey McGarr
    Eric, I ll check out this PEC-12 for the film, thanks for the tips. Casey
    Message 1 of 8 , Jun 12, 2008
      Eric,

      I'll check out this PEC-12 for the film, thanks for the tips.

      Casey


      > I use PEC-12 archival Photographuc Emulsion Cleaner for film,
      > available from photographic suppliers, and isopropyl alcohol for
      > cleaning the krene. The alcohol may also be used on the film. But
      > either will remove any but water-based opaques. I tried Pressine
      > aerosol film cleaner and it damaged the krene (made it pucker).
      > No brush here, I just try to do the cleaning without generating any
      > static to attract dust, hair, etc. And I look carefully for anything
      > in the image area when the vacuum drawdown is complete.
      > --Eric Holub, SF
      >
    • Casey McGarr
      Gerald, I ll get some air, that seems to be the best option along with the alcohol for the Kreen. I m happy to hear about the Kreen replacement timeframe. I
      Message 2 of 8 , Jun 12, 2008
        Gerald,

        I'll get some air, that seems to be the best option along with the alcohol for the Kreen.

        I'm happy to hear about the Kreen replacement timeframe. I may be in need to purchase
        some as I've noticed some week spots.

        Thanks again for the advice.

        Casey
        www.inkylipspress.com



        > There are products for cleaning solvent and debris from film negatives
        > but generally a spraying of compressed air will suffice to clean them
        > of dust. Make that a routine. Blow raw material off as well before
        > placing on the vacuum frame.
        >
        > I also use compressed air whenever I open the exposing unit, blowing
        > above and below the Kreene. Kreene itself can be cleaned with rubbing
        > alcohol. It's amazing how marked up it can get over time.
        >
        > I've also found replacement of the Kreene to be necessary on a fairly
        > routine basis. Eventually it seems to take on a mind of its own and
        > fails to properly secure during vacuum. At that point, it becomes a
        > liability. You can buy the stuff in rolls and a roll is going to last
        > you a good long time.
        >
        > My processing is done in a small darkroom so, while dust does
        > accumulate on stuff over time, I can't say that airborne material is
        > much of a problem that can be dealt with the compressed air spray.
        >
        > Gerald
        > http://BielerPress.blogspot.com
      • Gerald Lange
        Fritz According to Boxcar s new website they change the Kreene every couple of days or so. I change it reluctantly whenever it starts to fail on me, every
        Message 3 of 8 , Jun 12, 2008
          Fritz

          According to Boxcar's new website they change the Kreene every couple
          of days or so. I change it reluctantly whenever it starts to fail on
          me, every couple of months or so. You must be doing something right.

          Gerald
          http://BielerPress.blogspot.com

          --- In PPLetterpress@yahoogroups.com, "nagraph1" <nagraph@...> wrote:
          >
          > A few weeks ago I was talking to our main polymer supplier, Jet USA
          > and they said some plants actually change the kreene each day, and I
          > was very surprised at this. This is typically in plants using flexo
          > for printing medical boxes where the type is almost miniature and
          > they can't afford any screwups in dosage or usage instructions, and
          > the printing is done in multiple colors. Since the material is not
          > that expensive, they said they'll sell a plant large quantities of
          > the material at a time. And I plod one with one that is slightly
          > older than a day by a couple of years, and still get excellent
          > results.
          >
          > fritz
          >
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