U of S | Mailing List Archive | alt-photo-process-l | Re: Paper Negative Details

Re: Paper Negative Details

At 10:56 PM -0500 12/5/07, Judy Seigel wrote:
On 5 dec 2007, at 18:02, pulpfic@telus.net wrote:
I guess if you want to make a federal case out of it, rabbit skin glue would be a form of gelatin also (Yes?, No?) but in the field of both art and art photography, in the US at least, "gelatin" in industry tends to be a "porcine" product, as outlined on the package of several kinds I bought. It's also classified by "weight" (or bloom?), a saga in itself, which I have mercifully repressed.

I size paper with Knox (unflavored) cooking gelatin, which does not, or not officially, contain pig. The virtue, among others, is that its readily available, modest in price, & generally uniform. (Neither rabbit nor porcine is kosher, tho Knox is... in case you wish to devour art.)


Knox gelatin is a "porcine" product. However, in the US other types are available, such as "ossein" which is the type used in most photographic emulsions, and fish glue.

Sandy King