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Polyvinyl alcohol as barrier enhancer in tubes
Dear friends,
I’d like to know if the use of Polyvinyl Alcohol is usual or mandatory in tubes, to protect a regular hair conditioner water-based formula. Do P&G, UL or similar companies use it in their tubes?
Thanks!
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4 Replies
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PVA is the barrier resin of choice for packaging film media and certain tubes. It will often accompany or replace the aluminum barrier layer in that same media. There is Met-PET also, which P&G may use since food-grade film converters and users also apply, which P&G is.
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Thank you @chemicalmatt. Would there be an issue (oxidation, change of colour, excess water loss, etc.) by not having PVA as part of the tube? As I mentioned, it’s a very standard conditioner formula, with only minimal amounts (not more than 0.01% of some extracts and vegetable oils).
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Yes, there could be issues if you don’t have a coating on a tube. But stability testing could tell you to what extent.
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Thank you @Perry !
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