Re: Miracle size for gum
Loris, It is an AKD emulsion--alkyl ketene dimer. Here's what I have in my notes: A new sizing agent on the market is Aquapel, or alkyl ketene dimer (AKD for short). At time of use, dilute it with water to desired strength, apply to the paper, and iron to heat at 105 degrees. Chris __________________ Christina Z. Anderson http://christinaZanderson.com/ __________________ ----- Original Message ----- From: "Loris Medici" <mail@loris.medici.name> To: <alt-photo-process-l@usask.ca> Sent: Monday, October 12, 2009 7:49 AM Subject: Re: Miracle size for gum Christina, aquapel sounds extremely plausible to my ears, since it's already used as an internal sizing agent in many papers which are friendly to iron processes. (Most notably pure pt which is incompatible with gelatin sizings AFAIK... Also new cyanotype and argyrotype which are pretty picky about paper.) OTOH, aquapel comes in different strengths and properties depending on the application (it's also used as a concrete additive for instance), so one has to grab the right one and use it in the right dilution in order to achieve with the purpose. Meanwhile, aquapel could be a trademarked name for a generic monomer/polymer, therefore I'm not sure how to ask about it to chemistry suppliers. Regards, Loris. 2009/10/10 Christina Z. Anderson <zphoto@montana.net>: ...
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