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9681Re: [PPLetterpress] Re: Inks

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  • Lisa Davidson
    Apr 10, 2008
    • 0 Attachment
      I thought if you hold a spoon in a candle flame, the stuff you get is
      called lamp black, which wipes right off and doesn't hurt anything.
      It's just pure carbon, as I was told anyway.

      On Apr 10, 2008, at 5:14 PM, Frederick Smith wrote:

      > Maybe they mean something similar to 'Lamp Black"?
      >
      > ----- Original Message -----
      > From: Lisa Davidson
      > To: PPLetterpress@yahoogroups.com
      > Sent: Thursday, April 10, 2008 3:27 PM
      > Subject: Re: [PPLetterpress] Re: Inks
      >
      > Well, I mean, I've seen the standard Internet definitions, but they
      > don't really explain it. i.e., why would it burn and not turn into a
      > tarry mass, etc.?
      >
      > On Apr 10, 2008, at 12:13 PM, Lisa Davidson wrote:
      >
      > >
      > > Can anyone tell me what burnt plate oil is? Why is it called burnt,
      > > and why is it called plate?
      > >
      > > Lisa
      > >
      > > On Apr 10, 2008, at 10:52 AM, Peter Fraterdeus wrote:
      > >
      > > > Perhaps the important question is the volatility of the fractions
      > > > which will evaporate as the ink dries.
      > > >
      > > > Heavier, less refined, oils (hydrocarbons) evaporate much more
      > > > slowly, are not inflammable (will not ignite as vapors)
      > > > So, boiled linseed or hemp oil, the most ancient of ink vehicles,
      > > > can be mixed directly with pigments without solvent, and will take
      > > > a very long time to dry. With other solvents and driers added the
      > > > ink becomes less stiff, and dries more quickly, as the volatile
      > > > fraction evaporates...
      > > >
      > > > Disclaimer: I'm not an ink scientist!
      > > >
      > > > P
      > > >
      > > > At 5:13 PM +0000 10 04 08, okintertype wrote:
      > > > >In simple terms, ink, like paint, is composed of pigment, vehicle
      > > > >(resin) and solvent in varying degrees and types. If the
      > solvent is
      > > > >not water, then it is a hydrocarbon (compounds containing
      > hydrogen
      > > > >and carbone). The resins are always hydrocarbons. Pigments can be
      > > > >hydrocarbons or inorganic (no carbon present). I guess what you
      > > want
      > > > >to know does dried ink contain hydrocarbons. The answer is yes.
      > > > >Stan
      > > >
      > > > --
      > > > AzByCx DwEvFu GtHsIr JqKpLo MnNmOl PkQjRi ShTgUf VeWdXc YbZa&@
      > > > {ARTQ: Help stop in-box bloat! Always Remember to Trim the Quote!}
      > > >
      > > > ExquisiteLetterpress http://www.slowprint.com
      > > >
      > > >
      > > >
      > >
      > > [Non-text portions of this message have been removed]
      > >
      > >
      > >
      >
      > [Non-text portions of this message have been removed]
      >
      > [Non-text portions of this message have been removed]
      >
      >
      >



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