Forum Replies Created

  • minhasshah

    Member
    December 28, 2021 at 7:22 am in reply to: Separation in our cationic guar shampoos

    ketchito said:

    @minhasshah Perhaps I’m missing something, but regular cationic guar gums don’t require activation; rather, the addition of an acididic compound (like citric acid or EDTA) helps dissolve its coating to speed up the process, letting the polymer expand and hydrate. As @Perry confirmed, salt can be the reason for the separation (that seems to be the lamellar gel on the top), but it depends on your formula. Systems containing SLES, CAPB, quaternary polymers and DEA seem to be very sensitive to the amount of salt, especially at low pH. You could try making a sample at higher pH, to see if it emproves.

    Thankyou for your response. When i was talking about activation in my first comment, what i meant was activation of inactive quaternary etherifying agent. This agent has to be reacted with alkaline earth or alkaline metals. During this activation  reaction for every mole of active quaternary etherifying agent, 1 mole of salt and 1 mole of water is produced. After this activation is completed the activated etherifying agent is filtered out with water. I believe this water phase has a significant amount of salt dissolved. Nonetheless, this filtrate is reacted with native guar to produce cationic guar

  • minhasshah

    Member
    December 27, 2021 at 4:46 am in reply to: Separation in our cationic guar shampoos

    Perry said:

    Salt level can certainly cause that. But what are the ingredients in the shampoo?

    Unfortunately the company who tested our cationic guar wouldn’t disclose their formulation :(