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Topic: Least agressive pH up?  (Read 1451 times)

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Offline pcm81

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Least agressive pH up?
« on: September 21, 2019, 03:11:15 PM »
I am experimenting with fiber reactive dyes on leather. The basic idea is that fiber reactive dye creates covalent bonds with cellulose or similar compounds at ph=10ish.
Standard pH adjuster is the Soda Ash.
What i am finding is that oils and fats in the leather get washed out making leather stiff.
I am assuming soda ash turns oils and fats into soap causing them to wash out.
I am looking for recommendations of what i can use to raise pH o the solution to 10, yet prevent the saponofication of oils and fats found in leather.

Any advice on what products / compounds i should try?

Thanks ahead

Offline OrganicDan96

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Re: Least agressive pH up?
« Reply #1 on: September 21, 2019, 05:19:34 PM »
ammonia solution?

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