Видео

"Potassium alum or potassium aluminum sulfate (also called Neapolitan alum or Alum)" is this?

Hi there, I googled and found that it translates to 'sulfato de aluminio', the images do very much look like it's the same thing!

​@@yvonne9198 "alumbre"

Do not use this in food, it is not edible.

Yes, it is possible the pigments do not bond. I reckon it has to do with the substances in the plant and how it reacts with the substrate. It's worth exploring different substrates. Try using calcium hydroxide, it is a base, alum is not needed and works like a suspension. Let me know if this helps.

I take it off the stove when most of the colour of the petals have seeped into the water.

Hi! No I let it airdry. Higher temperatures may effect the final colour outcome.

Thank you for your kind words, you're welcome! 🙏💕

It is likely due to both the smoothness of the glass plate and that of the muller. A smooth surface can create a vacuum effect, but how you use the muller also plays a role. In the video you see I am using both a glass plate and the textured side of a marble plate. Using a more textured surface can help alleviate the problem.

@@yvonne9198 thank you! I will look into a way to roughen my tools.

You can use a graphite slab instead of the glass sheet

Thank you so much for your kind words and your support! I'm truly grateful to share my experiences through art. 🙏

I don't mind. 🙂 about 30 grams of flowers yielded 2 grams of pigment.

Thank you so much! ❤️🙏

Thank you so much, Marshal, for your heartfelt comment! 🌸 Your words resonate deeply, and I appreciate your support. I'm touched by your kind sentiments, and I look forward to having you along on this creative journey. 🎨 Cheers to preserving beauty and meaning in our own unique ways. Thank you again! 🙏😊

Ah... mmmh...did you add alum?

Yes, lake pigments can indeed be used to make pastels :)

Thank you! ☺Some of the blue colours have faded slightly, the reds, yellows and greens still look pretty much the same.

No, lake pigments are insoluble and are generally not suitable for dyeing clothes.

I don't measure out the equations of alum/bicarbonate rather add it on intuition. In this video I did 10 gr Alum and 5 gr of Bicarbonate but you could also use Calcium hydroxide too which is a substrate in itself and does not require alum.

Awww thank you so much!

Hi Nimisha, alum is a chemical compound and I don't think your solid or my powdered form are any different. The color of this Delphinium slightly changes. The liquid was a dark blue purple and changed into an icy blue however I do not expect or guarantee the same results as many aspects are contingent on environmental phenomena and on which of the pigment groups a plant contains but also Ph of the solution.

I was having the same problem just 2 days ago making my first lake pigments! Boiled red onion peels, added calcium to neutralise it, after adding alum it turned green! And I was like oh no! 😂

Hi Riley, it takes just a couple of minutes really. As the alkaline soda neutralizes the acidic dye solution, it releases carbon dioxide as a gas causing the solution to foam. Continue stirring and knocking back the foam. Add soda until the reaction ceases or the soda solution is exhausted. Baking or washing soda do have some differences, it may effect pigments differently as it will have a slightly different pH but the main difference I have noticed is that baking soda will cause more frothing and foaming than sodium carbonate.

Thank you for your comment, I made some water colours with them to test their lightfastness. It is still a process.

Hi! Yes, chalk could have been used too. I am still researching and have come to this conclusion. A lake pigment is formed when alum (a mordant and acidic) is added to a dye and precipitates in a chemical reaction with an alkali. The chemical reaction causes the alkali to bind to and neutralise acids. There are many alkali carriers (or substrates) and baking soda and chalk are just two of them. The first creates a more transparent pigment and the latter an opaque pigment.

Thanks guys, this has been a very informative conversation

@@yvonne9198 is that Alum Stearate? Where do I get Alum? 😊

@@sebastiaantheartartistyou can get it in most grocery store spice aisles

Would crushed egg shells work??