How to detect presence of metallized paper?
How to detect presence of metallized paper?
(OP)
I am trying to develop a method to detect when packaging is using metallized paper. I tried a multimeter and got nothing (aluminum plus lacquer layer is likely problem).
Metallized paper is a multistep/multilayer process that is typically as follows:
1. paper substrate
2. thin varnish layer to prepare surface for metallization
3. aluminum vacuum metallization layer of 0.08 to 0.1 g/m2
4. Thin lacquer layer
Any thoughts on tests? Essentially I want to test for the presence of aluminum.
Metallized paper is a multistep/multilayer process that is typically as follows:
1. paper substrate
2. thin varnish layer to prepare surface for metallization
3. aluminum vacuum metallization layer of 0.08 to 0.1 g/m2
4. Thin lacquer layer
Any thoughts on tests? Essentially I want to test for the presence of aluminum.





RE: How to detect presence of metallized paper?
If so, atomic absorption spectrophotometry should detect aluminium.
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Regards
Pat
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RE: How to detect presence of metallized paper?
RE: How to detect presence of metallized paper?
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RE: How to detect presence of metallized paper?
RE: How to detect presence of metallized paper?
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RE: How to detect presence of metallized paper?
My chemistry is to rusty to remember how to dissolve aluminium in sodium hydroxide then precipitate it out prove what it is. Someone up to speed on chemical analysis could help, but if the layer is really thin, you might not have enough to get a result and the lacquer might interfere. A solvent like acetone or methylene chloride might strip the lacquer off, but this might also leave such a fragile film that it cannot be analyzed
Regards
Pat
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RE: How to detect presence of metallized paper?
Look at Delmhorst or GE Protimeter.
RE: How to detect presence of metallized paper?
RE: How to detect presence of metallized paper?
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RE: How to detect presence of metallized paper?
RE: How to detect presence of metallized paper?