Why always in dedorant the level of low hlb emulsifier is higher then high hlb?

Formulating

Why always in dedorant the level of low hlb emulsifier is higher then high hlb?

Posted by Fekher on June 10, 2024 at 1:24 pm

I want to know why always in dedorant especially chlorohydrate aluminium one the low hlb emulsifier has higher level then high hlb emulsifier?

Then is it w/o emulsion because it has low hlb “even the level of water is dominant” ?

Fekher replied 6 months ago 4 Members · 8 Replies
8 Replies

Graillotion

Member
June 10, 2024 at 3:37 pm

I don’t see the correlation between deodorant and your question…. Just look at any ready made emulsifier…use 165 type as an example….generally the ratio is 2 parts GMS to 1 part PEG 100. Look at something that has cetearyl alcohol and Ceteareth 20….you will find similar. This is consistent around the industry. Read any of George Deckners blurbs in the knowledge center…and you’ll see these ratios mentioned with frequency.

Answer is NO in regards to, does having more low hlb than high….make it W/O. This is often the case in O/W. GMS is often used as a thickener in O/W emulsions.
- Graillotion
  
  Member
  June 10, 2024 at 3:50 pm
  
  Just for fun…. a simple test to determine W/O vs O/W is put a drop of the emulsion into a beaker of water. Swirl (not mechanically) and if the emulsion starts to disseminate in the water…it is likely O/W. If it stays very intact…not wanting to play with the water…it is likely W/O.
  - Fekher
    
    Member
    June 10, 2024 at 4:58 pm
    
    Yes easy test.
Fekher

Member
June 12, 2024 at 3:25 pm

@chemicalmatt @Cafe33 @Perry44 @ketchito @Abdullah

Any add for using low hlb emulsifier more?
ketchito

Member
June 13, 2024 at 7:02 am

Do you mean something like Steareth-2 and Steareth-12? I remember Unilever doing that for their antiperspirants. I believe it’s just for producing a very robust emulsion. Also, keep in mind the amount of electrolytes those type of emulsions should support (because of the aluminium salts).
- Fekher
  
  Member
  June 15, 2024 at 5:21 am
  
  @ketchito actually If you watch you can see that almost dedorant (if not all) with aluminium chlorohydrate are made with combination between (ceteareth/steareth 2, ceteareth 20..) and always low hlb emulsifier have higher level. For sure there is justification for that your answer seems good , thanks a lot.
Abdullah

Member
June 15, 2024 at 6:26 am

Because to make LGN, the ratio should be 1:1 to 1:6 high HLB:low HLB surfactants in mole.
- Fekher
  
  Member
  June 15, 2024 at 7:39 am
  
  Interesting concept thanks a lot.