U of S | Mailing List Archive | alt-photo-process-l | Re: carbon transfer (mainly: digital negatives)

Re: carbon transfer (mainly: digital negatives)

hi loris,
i think you're right there. i took a second look at the label and it says: "technical gelatin: type: 'rabbit skin glue' " and the description says it's a hide glue.
i tried varying the sugar content a little - mostly to find out what it's good for, because i didn't know what a plastiziser is. sandy king said 12.5 gr (50 a litre) in his glop recipe. so i lowered it to 10gr and the result was extremely curled tissue. i really had to struggle to get the tissue and negative in place. so i upped the sugar again to 15gr and the result was completely flat tissue.


Loris Medici schrieb:
Hi phritz.

If it's cheap and can is listed under "technical gelatin", then it's not
"real" rabbitskin glue but hide glue (= very high bloom gelatin?) instead.
Your relatively high sugar content is already telling me something; hide /
rabbitskin glue is pretty brittle when dry, therefore you needed higher
content of plasticizer, right?


30 Mart 2009, Pazartesi, 3:45 pm tarihinde, phritz phantom yazmış:

because the art supply store i buy my stuff from sells it cheaply in big
units. they also have it listed under the name "technical gelatin" - so
i guess it behaves a lot like normal gelatin. i haven't noticed any
differences to normal gelatin yet. i use it for sizing without
hardening. i should probably make a face to face test with some knox
gelatin from the supermarket.


both are on homemade tissue (glop: 20gr rabbit skin glue + 15gr sugar
+ 3.5gr lamp black (powdered) + 250ml water)
spirit sensitized with: 2x 4ml per 8x10 (20ml acetone + 20ml 2.5%
dichromate sol.)
hi phritz,

why do you use rabbit skin glue instead of gelatin?