LeonB
Forum Replies Created
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Hi Humblebutton,
Also - if you are interested, you have the ability to make this spray hydrophobic (repelling water), to be able to do this you can add a raw material called Hansa Care 7140. NS please always test your formulations in real-world application.
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Hi Humblebutton,
In my humble opinion this is phase-separation - try this, premix the fragrance with with the Tween 20 and 3 - 5% Ethanol with your Fragrance oil and add this to your water phase.
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Hi Cherma,
Try this, I take it that your base is probably SLES based, you are adding a fragrance oil to water – the fragrance oil needs to be premixed with a surfactant, then add the blend to your base formula. Why don’t you get a sample of the fragrance oil from your client, then try to do as above? You can premix the fragrance with let’s say 0.2% Tween 20 and 0.5% CDE with about 0.5% Fragrance oil and add this to your base formulation.
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Thank you, I enjoyed your comment - NS should the preservative in the lotion not take care of pathogens?
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<div>Try using a Carbomer in your formula - please see:</div>
cosmetics.specialchem.com
Carbomer (Thickening Agent) - Cosmetic Ingredient INCI
Find more about Carbomer (CAS No. 9007-20-9) cosmetic ingredient used to control the viscosity and flow of cosmetic products. Check related commercial grades and formulations.
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Hi William,
Please see attached.
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On the alkali issue - you need to know that alkalinity and oils, creates soap, meaning please test the formulations prior to implementation.
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When formulation cosmetics - it is very important to have purified water, meaning you will not need a chelating agent because you don’t need the chelate Calcium and Magnesium ions. In regards to Xanthum Gum - note over time how the feel of the product becomes (you will probably note that it is sticky), I use Carbomers in my creams and neutralize it to add viscosity. Your oil phase should also kick up the viscosity - i.e. increasing Stearic acid as example (hot mix cream) will increase your viscosity.
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A bit of info on more bio-degradable Chelators…
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Preservative: Add CIT/MIT with Microcare DMP (see attached)
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You will require a chelating agent - if you aim at a more bio-degradable options, revert to Dissolvine range manufactured by Nouryon, please see attached.
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You will note that the viscosity for the premium car shampoos are not very high. Look into Siloxanes for Hydrophobic action - revert to attached. NS keep in mind the charges, when working with a Non-ionic such as Berol 611 you don’t have to worry to much, although when you incorporate a anionic component (SLS, SLES or Sulphonic Acid based) then the activity of your cationic Siloxane will diminish. I’ll rather add a Carnauba wax into a paste wax for vehicles and not into a shampoo - I’ve obtained very positive results with Siloxanes (for ceramic claims). Regarding the foam Increase active will increase foam, add CAPB (foam booster) is also a good way to increase the foam.
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Try this as preservative.
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Try the Microcare IT at 0.1% - NS remember to stick to legislation (just make yourself aware - ask you raw material supplier if there are any restrictions in your country or if you want to export)
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Can you please send me the technical data sheet for both?
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Regulatory - please check with your raw material supplier if the raw materials that your are using are allowed in your country (NS where are you situated?)
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I’m happy that you have obtained the desired viscosity! As preservative If available try Microcare IT- add it at 0.1%, Also see if you can find a CIT/MIT with Bronopol blend - this is a good broad spectrum preservative. Try your formula also in a snow canon - you might be pleasantly surprised.
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As test basis, why don’t you try your formula without a chelating agent for now.
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If you dilute the shampoo - for instance to 5L, then the polyvalent ions in the water will decrease the formation of foam, regarding SLES - you get various percentages of it, I use the 70% SLES. Start with about 7% SLES with water colour, preservative and work with a salt quantity of 6 - 8% to increase viscosity. Don’t add a Siloxane or the pre-emulsified Carnauba wax. NS if you add to much salt - the viscosity will drop.
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Siloxanes establishes a cross-link with the clear coat of the treated vehicle.
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This is to show you the effectiveness of the addition of Siloxane to a spray that I’ve developed - see how the water beads after the addition of my spray wax. Remember to check for the charge of your Siloxane - many of them are cationic and as such does not want SLES which has a negative charge - one of my favourite additions are Berol 611, which is a non-ionic and readily biodegradable - the non-ionic component means that it will not interfere with the Cationic Siloxane - then regarding preservative, you should be fine with a CIT/MIT blended preservative. Are you developing a snow foam shampoo, or a hand applied car shampoo?
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If you intend to make a snow foam as seen in the video - then I’d advise you to add a Chelating agent, the reason is because you dilute the shampoo with water - in many cases from area to area the hardness of water is not the same, and you need to chelate the polyvalent Calcium and Magnesium ions - if you work with hard water you will note that the foam formation is not that great, so by adding a Chelating agent, you basically remove the negative effect of the polyvalent ions - and as such increase your foam formation.
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Please see attached documentation on the Imbentin AG/124S/070.
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Look at NANSA PC38 G MB manufactured by Innospec - it is an aqueous solution of a potassium fatty acid soap, try this with a combination with Berol 611. If you want a biodegradable preservative look at Sodium Benzoate (used in the food industry as a preserve) please note that Sodium Benzoate is acts as a preservative under a pH of 5. You can add it at 0.1% (you’ll need to challenge test your formula) - if you want to obtain viscosity, you can look at Xanthum gum, Natrosol or carbomers to build viscosity, Xanthum gum is also used in the food industry. NS if you want to also look at the addition of enzymes (see Novazymes).
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pH is the measure of alkalinity and acidity of a lets say a liquid - low pH indicated acidity and high pH indicates alkalinity - pH is measured from 0 (acid) to 14 (alkali) and pH neutral is 7. Human skin pH is at about 5 - so when you formulate cosmetics it is something to be aware of.