ozgirl
Forum Replies Created
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There is some information in the link below about modifying viscosity and density to achieve a stable pearlescent. -
I would definitely increase the cetyl alcohol (or cetearyl alcohol) and the conditioning active and reduce your butters and oils.Here is another starting formulation that might give you an idea of the ratios of raw materials that are used.
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Sodium Cocoyl Isethionate is not usually used in conditioner bars. It is commonly used in Shampoo Bars.Varisoft 65 and 100 are not really silicone replacements rather they are conditioning actives (quats). You would often use them in combination with silicones. There are plenty of silicon alternatives on the market (e.g. Lexfeel).Here are a few examples of conditioner bars
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Would a silica gel desiccant sachet (packet) help?
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The change in odour is due to bacterial contamination. You need to add a preservative to your product. Note - the product will have significant levels of bacterial contamination before you notice a change in odour so you cannot rely on a change in odour to detect bacterial contamination.Treating the water will not really help with your problem as your bacterial contamination is likely to be coming from multiple sources.Using distilled or deionised water is recommended but you really do need to add a suitable preservative.
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One of the the Sulfur atoms in the structure has too many bonds. There are also 23 extra Hydrogens in molecular formula. Something strange is going on.
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What about Cosmetic Scientist?Although I do like Chemical Ninja
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I am in Australia and we have been seeing supply chain issues for months across almost all types of materials (surfactants, solvents, silicones, EDTA).We have some surfactants go from being stock items (2 -3 day delivery) to 5 to 6 month lead time. This is because the suppliers can’t get them on a ship.I had one supplier refuse to provide a lead time for a surfactant until we put in an order.Silicones are particularly hard to find and prices have gone up. I was told that manufacturers are using simple silicones like dimethicone as feedstock for their higher value modified silicones rather than just selling the dimethicone because supplies are so short.EDTA is going up in price.It is only going to get worse here as Coronavirus isolation is crippling our local transport and warehousing businesses.It is is certainly a challenging time
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Is it possible that this is labelled as a drug and the “actives” are listed separately and the inactive ingredients are listed as you described?Although the disclaimer is concerning.
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Salt also can contribute to corrosion of metals so this may be why some choose to not manufacture salt scrubs.
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Here are some starting formulas for hair stylingThere are lots of resources out there but some are only available to those already in the industry (e.g. UL Prospector).Also look at
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You have incorporated air/bubbles when blending with a stick mixer. It is probably just the air/bubbles coming out. Was there any change in weight?
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Was it this website
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Did you read the Safety Data Sheet for this material? It is a very toxic product and you should definitely wear PPE when using it.It is always recommended to wear safety glasses when using any chemicals in the lab or manufacturing. It is not a good idea to smell chemicals when you are not aware of the hazards.You will need a respirator/mask with a special filter specifically for formaldehyde. You may potentially need other PPE and engineering controls depending on the volumes you are using.
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Are you stirring the product at all?I normally work with liquid fabric softener concentrates (from Stepan) but we heat the water and fabric softener to temperature (~40C/104F) separately and then combine with stirring use a propeller type stirrer (low to medium speed). Then add our preservatives, fragrance, calcium chloride (viscosity adjustment) whilst stirring when it cools to around 30C/86F.I would try just making samples with the fabcon beads and water and maybe the preservative initially and see if this separates. If it separates it is probably an issue with your method. If it is OK then make some more samples adding your other raw materials one at a time and hopefully this will identify where the problem is occurring.
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What is the process you use to make the product? Do you need to heat it?If you provide the percentages of raw material and your process this will help us with providing assistance.What is Blue Dawn 385 and Encap? Are they your fragrances?Do you need a defoamer?
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Congratulations Perry!
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There is nothing that stands out as causing the stringy behaviour.Are you using Iselux Mild?If you gave the percentage of each of the raw materials this might help identify the cause.You could try removing the glycerin and essential oils to see if these are the cause of the issue.
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I do use some cetearyl alcohol (around 5- 8%) as a binder (and emollient) and get a pretty smooth consistency. I just stay away from butters and and oils as I don’t see the point of adding them just to wash them away especially when they are usually expensive.
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Yes I melt the SCI (majority) and SLSa (minor) with cocamidopropyl betaine until it is a paste.I get nice solid bars using around 70% dry surfactants.
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Colonial have a few starting formulations that might be of interest
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Decrease cocoa butter (or remove completely) and Caprylyl Glucoside and add more dry surfactant.I never put oils/butters in my shampoo bars as this is what you are trying to remove. Just use a separate conditioner bar if you want to condition/ moisturise your hair.
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I would agree that you you need to clean it after every batch.I would look into buying a bigger tank because as you said you are wasting time and resources making small batches.You could probably just make 1 x 1000kg batch a week. It would take a similar amount of time to make a 200kg batch as it would to make a 1000kg batch (maybe slightly longer if you need to heat the batch).
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BTMS (cationic) and Xanthan Gum (anionic) are incompatible.
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What temperature is it where you are?The Babassu Oil has a melting point right around room temperature (24C / 76F) so this probably causing some of your issues.You could try increasing your butter and wax to try and raise the melting point of the product.