Only in the product itself finded the material Note "material glassine Matt PER" what is more commonly known as "parchment paper". But for archiving purposes, so plugging negatives from the folder that is perfectly OK. Since the cases are used to expand an existing archive are these cases parchment sideways out of the folder. but whatever. The EH is only stored in the closet.
The processing is for my purpose perfectly OK. Who often the negatives obtained from the envelope and return infected should use a plastic variant.
