I face problem with Colour stability in Hair Shampoo and Body wash
pH of the final product is pH5 - pH7
I've been using
Trade Name: Cibafast H Liquid
INCI Name: Sodium Benzotriazolul Butylphenol Sulfonate, Buteth-3, Tributyl Citrate*
Percentage: 0.04%
at this moment..only Purple colour starts to fade and the other colour still remain as day 1
I am using Food Powder Colouring in the formulation and previously I am using Benzophenone 4 as the Colour stabiliser but it is worse than using Cibafast H Liquid as Colour stabilizer. The short wavelength colour fade easily within 48 hours.
can anyone guide me with better solutions?
Comments
also, is the water in the product chlorinated? (excessive chlorination can cause rapid colour fade)
I am using 0.001% of Brilliant Blue and 0.003% Carmoisine
Our facilities Water source treated, and we have Reversed Osmosis Water and Deionized Water. For formulation mentioned above, I am using Deionized Water
1 sample expose with lighting in Display Cabinet
1 sample keep indoor on my office table
1 sample stored in uncontrolled temperature (which can exceed maximum 50 degree Celcius)
only indoor sample remain the original colour while the rest fade
I will change the colorant and find the most convenience uv stabilizer to delay the color change.
will contact the sales person for sample
Then i used Benzonphenone-4 at concentration of 0.1% it works well as well and is cost effective as well.
Best option is Tinogard Q by BASF if cost is not the problem
Surprised that caramel fades to white.
I've been using Cibafast since 2005 and facing no problem at all with colour stability. But this time, I also wondering what is behind the colour stability issue.
In the formulation, I just collaborate SLES, SLS, Betaine, PQ7, Kathon CG (Preservatives), Fragrance, Cibafast, and Colour.
As per mentioned earlier.. I use Cibafast in almost every formulation without any colour stability issue...
Now..I try on to increase the Cibafast from 0.03% to 0.06% and run the colour stability testing.
will update here the results in few weeks.
I do agree with you
in Malaysia...10% Erythrosine solution in Aqua will fade away within a week
(condition : room temperature, Storage : Office table without direct sunlight)