storability of plates

Discussion in 'Silver Gelatin Based Emulsion Making & Coating' started by kevin klein, Mar 19, 2007.

  1. kevin klein

    kevin klein Member

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    Can coated plates be be safley stored if the emulsion does not contain any presrvatives or bactiriside? What should be used for a preservative if needed and how much shuld be used per batch? Is the content determined by the amount of gelatin in the emulsion?

    Thanks.
     
  2. Photo Engineer

    Photo Engineer Subscriber

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    They can be stored with no preservative, if the emulsion is in a dry place.

    For a preservative, the hardener can help and you can add thymol as well. Use about 1 drop per 100 grams of emulsion of a 10% solution of thymol.

    Yes, the amount is based on gelatin and assumes an aldehyde hardener. I assume 10% gelatin.

    PE