WalterBliss
Forum Replies Created
-
Most polymers used for thickening are polar with many OH groups. Cationics = positive of course. They organize the water around themselves. Adding salt or ions disrupts the organization and reduces lotion viscosity. This is what makes Tiethanolamine desirable. It is inexpensive and behaves itself. Alternatives such as Angus Chemical Company AMP-Ultra PC 2000 are prohibitively expensive. Na lactate introduces sodium ions. You end up paying for it in cost with increased amounts of expensive thickener. Cost is key.
-
I know old thread. But nobody mentioned this. I have found that if you get Cocamidopropyl Betaine that already has a high concentration of salt that it won’t thicken because you are already over the top of the salt curve. We use a low salt Cocamidopropyl Betaine and low salt SLES for that reason. It thickens very well. In fact when we are struggling to get extra viscosity and we have already reached the top of the salt curve, we just add more Cocamidopropyl Betaine. A very small amount makes a huge difference in this situation.
-
I am the lab manager of a contract manufacturing and packaging company. We are actually still increasingly being asked to make sulfate free products. In these cases there are usually a few other things that must be avoided. It could just be a statistical anomaly.
-
Hard to beat free. Maverick Packaging Inc. does contract manufacturing and packaging. If potential sales are good Maverick will reverse engineer a product and give a quote. It just takes some negotiation.