Digital BW, The Print

Ernst,
Now your bringing back memories......Rohm and Hass.... In my younger days I was involved in automotive prototype..  We would use Roman and Hass materieals to make all the glass used for the non functional prototypes.. 

If I'm not mistaken today they are considered the best or biggest business partner to Acrylic type material manufacturing facilities in China.
You are correct other influences besides UV cause images fade.. This post started out notably more basic..  To cover or not to cover a print with glass or acrylic..

jimbo 
  ----- Original Message ----- 
  From: Ernst Dinkla 
  To: DigitalBlackandWhiteThePrint@yahoogroups.com 
  Sent: Sunday, August 29, 2010 3:46 AM
  Subject: Re: [Digital BW] no glass vs. glass vs. plexi: which shows carbon print at its best?


    
  mrjimbo schreef:
  > Paul,
  > Acrylite would just be a brand or type of plexi.. The UV resistance is a plus as it will stop the image from getting faded due to exposure to light.. 
  > Typical non glare material in acrylic or glass has an etched surface. 
  > 

  Plexiglas is the (German) Röhm (und Haas) brand name for PMMA, 
  PolyMethylMetaAcrylate. The common brand name in the English speaking 
  world was Perspex as coined by ICI, UK, the inventor of that plastic. 
  More brand names exist.

  For glass etching is a way to achieve non glare, for both glass and PMMA 
  the other choice is a coating layer, either on teh outside or on both 
  sides.

  Colorant fading indoors happens in more ways than by UV light, visible 
  light is probably the main cause for framed prints whether behind UV 
  cutting glass or normal glass, Other factors are humidity, gas fading 
  and the combination of them all. You will find sufficient information at 
  the Aardenburg site.

  -- 
  Met vriendelijke groeten, Ernst

  spectral plots of +100 inkjet papers:
  http://www.pigment-print.com/spectralplots/spectrumviz_1.htm

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