@@KJodiGear i have an urge to figure out how to make marbled paper with the clay/earth pigments…using natural materials from local sources…so kinda rules out the seaweed thickener…any thoughts?
This is an awesome video! Definitely need to try making my own pigment sometime, this looks like a fun activity to try with my daughter. Thanks for sharing
no instability in the ochres. They are lightfast. I have started playing with changing the color of some of them with heat. (Which is historically how burnt umber and burnt sienna were made.)
The iron oxide/hydroxide earth pigments are light-fast. So rocks that you find that are soft enough to grind will make a light-fast paint. The color/dye you get from plants (the botanical pigments) will not be light-fast. Some will last longer than others, but they will all fade in UV light.
So pretty a design when your using the glass thing with "Lake" on the glass, if could frame that on a wall. Use dyes for wool and cotton, but read if laked, wont work on cotton later. Am researching what else besides alum works for laking, and you use calcium carb(chalk), but read of bismuth (thought of buying it at dollarstore). If you changed that pH, would your pigment colors have changed? So many interesting things you show !!
@aliveandwell early on, i experimented with changing the pH of the dye to get a different color, then doing the laking process, and found that if I made the dye too acidic, the laking process didn’t work. Sometimes the process completely changes the color on its own - I have a couple of purple leafed trees and the dye is purple, but when you add the sodium carbonate, the lake pigment turns green.
@@KJodiGear think to dye wool from a lake, acid is added (so called a split lake)(wish worked on cotton fabric also, will try painting on fabric, then after mordant)
@@KJodiGear just found this by M Garcia on chem of Al in clay, think is saying using lime or ashes to make useable?! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-VDotxdgFdYA.html You have clear information on your videos
