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Glyoxal use

Discussion in 'Alternative Processes' started by Meditant, Sep 14, 2018 at 9:05 AM.

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  1. Sep 14, 2018 at 9:05 AM #1
    Meditant

    Meditant Member

    Messages:
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    Joined:
    Oct 3, 2015
    Location:
    Paris
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    8x10 Format
    Hello,

    I want to use glyoxal for sizing my reception paper for carbon transfers. I use a 5% gelatin for sizing, I have read several posts and if I understand :

    Outdoor use only
    Make a 10% solution of 40% glyoxal commercial glyoxal at 1:9. I.E. : 10ml of 40% glyoxal and 90ml distilled water.
    Use for 100ml of 5% gelatin solution 5ml of this 10% glyoxal solution.
    Hardening in 4-8 hours but wait 24h minimum to evacuate fumes
    or
    I read in the book of alternative photographics process third edition :
    15ml of 40% Glyoxal in 250ml of 2,6% gelatin
    or
    15ml of 40% Glyoxal in 1000ml distilled water (immersion option)

    There is a big difference in concentration between sources

    What is the best option for you ?

    And if you have different use share please

    Best regards,
     
    Last edited: Sep 14, 2018 at 9:49 AM
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