Peplacement for DCG , UV curable monomer, crosslinker, free radical generator

Mustafa Umut Sarac

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Joined
Oct 29, 2006
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İstanbul
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Monomer : Methyl methacrylate or better (more hydrophobic) is butyl methacrylate (NB. Not tert-butyl methacrylate)
Crosslinker: Ethylene dimethacrylate (alternative silly name by Sigma Aldrich is ethylene glycol dimethacrylate).
UV sensitizer (free radical generator in UV.): DMPA or dimethoxyphenyl acetophenone.
One can use about 1 part DMPA to 100 parts monomer to 5-10 parts crosslinker.

I found that subject at wikipedia to seal holograms and I found may be it is useful to replace DCG for collotype or carbon or gravure.

http://holowiki.nss.rpi.edu/wiki/Sealing_DCG_Holograms

What do you say ?

Mustafa Umut Sarac
Istanbul
 
Last edited by a moderator:

pschwart

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San Francisco, CA
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The article describes a sealer to prevent holograms created with dichromated gelatin from absorbing moisture. Carbon tissue and collotype plates have the opposite requirement -- they must absorb water. Finished carbon prints and collotypes don't need to be sealed, either. Why do you think this is useful for those processes?

 
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