[evauk]

I would like to keep the ethanol as low as possible, due to flammability concerns of DOT.
That’s why I am thinking of an additional natural solubilizer besides Zemea.
The TEC is a great natural fragrance solvent (expensive though) that is emphasizing the effect of fragrance in product.
Thanks.

[evauk]

Thank you, DRBOB!

[evauk]

Thank you, Mr. John!

[evauk]

Usually the SDA 39C is around 5%  and Fragrance required at 5%.
Zemea could be around 2.5%, I guess.
 
Is any natural preservative needed besides the 5% of ethanol?

Also, the fragrance will have a naturally derived solvent (thinking of Triethyl citrate) and a naturally derived emulsifier, too!

Here some testing will be done, as you said, depending on the nature of fragrance.

[evauk]

I am talking about a spray AF formula( I was mentioned water based before).
My company is located in the Chicago area, but I am originally from Eastern Europe….still adjusting my way around
Thanks!

[evauk]

Hello Mr.John,

I truly appreciate your response, as I am treasuring experienced scientists.
Here I am not sure about the “natural definition”!?Talking about AF, is this applicable as is for the “natural in cosmetics”?
 Recently watched Perry’s webinar and he seemed to give few options on this,learned a lot! Majority of cosmetics are submitting to FDA regulations and NSF- COSMOS-Ecocert-NaTrue-NPA-EWG standards.
Which one could be extrapolated to the natural AF?

Any water based formula would be useful,based on naturally derived or organic ingredients, but simple though.
I have elaborated  before the alcohol(5%) in water based AF, using wetting agent (Surfadone LP-300) for our fragrance applications.
This time the customer is interested in natural fragrances, therefore I need a natural AF formula.Suggestions needed, only!
Also, would you recommend a manufacturer( co-packer) experienced to work with this type of formulas?
I would be able to suggest it to the customer, as we are producing fragrances, not finished products…
Regards,
Eva

[evauk]

DRBOB,now it’s over and done with. I can’take off the SF2 polymer from the batch….This was a small lab batch, so I could scrap it…just was wondering about the haziness, as it never happened before!
Yes Johnb, I am adding the DI water before the polymer neutralization,but  after dosing the main surfactant.
BTW the SF2 polymer doesn’t induce any off base odor and does not interfere with the fragrance at all….. my fine nose palls would notice this immediately! Usually our fragrances have a secondary solvent that is making them proper for water based formulations.
SLS wasn’t a preference to SLES, it was used in this thick formula,only!
You right, usually I am using SLES as primary surfactant.
Thanks!

[evauk]

The formula was stable before with different types of fragrances. This is not a concern! I was talking about the non-fragranced base, that got hazy by adding extra amount of DI Water.
Yes, the main surfactant is SLS(28-30%).
Concentration of fragrance is usually 0.5%, I just needed more for for this project!
I just wanted to understand why the extra DI water has created haziness!

Thanks all of you for the input!

[evauk]

Hi Chemist77,
This is a very simple( basic) formula used for fragrance evaluation. The clear appearance is mandatory,as I am following the effect of various fragrances on that base.

DI Water:44.4%
Carbopol Aqua SF2 polymer:8%
SLS:32%
Cocam. Betaine:12%
NaOH sol.18% :2%
Fragrance:1%
Preservative:0.5%
EDTA:0.1%

thanks,
Eva UK

[evauk]

Hi Perry! Is not the air released in batch,checked this already! Also I neutralized the SF2 polymer with caustic to the optimal pH range of 6.5 and maintained the batch on same pH level.Is just the DI water added that is hazing up the batch…weird to me!

[evauk]

This should be spray ,that’s why I was watching the viscosity, as well!
Yes, I am working on the glycol ether as solvent! What ratio would you recommend?

Thanks!

[evauk]

First,thanks for the precious help, all of you!
In order to answer your questions, I would start with my location.
 I am from a NW suburb of Chicago, IL and working at Orchidia Fragrances as application scientist.
I don’t like the whole TTO concept either, this is a project for a customer, who would like an air freshener close to  the Kanberra product.
Last formula I’ve tried : (TTO 8%+ 16% Tween-20+8% EO modifier), 10% denatured alcohol, Surfadone LP300 as wetting agent-0.2%….DI Water.
So far, this one looks pretty stable,no separation of phases…
I still will try the formulas with PEG40 and Sepiclear G7 after getting the samples in house.
Kindest regards,

Eva Unger-Kovacs(UK)

[evauk]

Thanks, John!

[evauk]

Yep! You’re absolutely right!This is what the customer wants….you know that the customer is the boss…I could suggest to reconsider the TTO level, but still trying to integrate it in the water based formula.

What type of solubilizer would you recommend, in general, for EO’s in water based formulas?
Proportion of solub: EO=3:1?

Thanks in advance,
Eva

[evauk]

The chelating agents added prior to the PC formulation bases  will block the Fe before discoloring reactions would occur with sensitive Fragrance components.