BotanicalPrint

https://www.ynet.co.il/environment-science/article/hkrbqql00a?utm_source=ynet.app.android&utm_medium=social&utm_campaign=general_share&utm_term=hkrbqql00a&utm_content=Header

מלפני כ-3,800 שנה: אריג אדום, צבוע ב"תולעת השני", התגלה במדבר יהודה צבע השני, המוזכר בתנ"ך לצד התכלת והארגמן, נחשב לאחד הצבענים היוקרתיים ביותר בעולם העתיק, אשר שימשו - לפי הציווי המקראי, לצביעת אריגי המשכן ובגדי הכהונה. ברשות העתיקות ...

Yesterday I had the pleasure of visiting ‘Ptil Tekhelet’ to do some research on the extremely rare dyes prepared from mollusks.
How it works; the gland of specific sea snails contains indigotin, dibromoindigotin, indirubin and sometimes even isatin. In short; it’s like an indigoferra plant on steroids.
We make vats from the extracted glands and the influence of sunlight during the process determines the shade: purple (Argaman) or blue (Tekhelet).

I will be busy in the lab today and the upcoming days making many samples and running tests.

Lately I have been remembering how, as a teen, I wanted to become either a biologist or an archeologist. Now, at 45, I realize that is exactly what I am and the best of both worlds. It’s a wonderful place to be at.

https://www.suzannedekel.com/post/5-different-mordants-in-eco-printing

5 Different Mordants in Eco Printing In this blog I want to show you the results of different mordants with different leaves.