Watercolors Explained | Natural, Synthetic, Organic & Inorganic | The Paint Show 3
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Hello friends!
Welcome to episode 3 of The Paint Show!
In today's episode we'll take a short break from tubes, and talk about the different types of pigments: Natural / synthetic, organic / inorganic.
I think it's important to talk a little more about that, and on episode 4 I'll be back with some more tube action!
*** Color Indexes Mentioned in the video ***
1. https://en.wikipedia.org/wiki/Colour_Index_International
2. http://www.artiscreation.com/Color_index_names.html
*** Shortened (yet super-loooong) transcript ***
Pigment Types and Constitution Numbers
There are 2 criteria for pigment types: Natural / synthetic and inorganic / organic
This leads to 4 possible combos:
#1
Natural inorganic - Earth or metal pigments. Made of NATURAL minerals. These are usually no longer used (since end of 18th century), because they are expensive to produce, and the result of pigment isn't as good - low intensity.
The Daniel Smith line of Primatek colors is composed of NATURAL INORGANIC substance, and it's actually a large part of its marketing campaign, presenting this as a romantic idea.
I'm not saying this is bad. In fact - it's pretty cool. But - I do think it's important to understand what they are made of.
These are natural minerals that are actually extracted from earth or naturally occurring metals. Unlike synthetic inorganic that are factory made.
As I said - these are rarely manufactured these days, because of the labor required to extract them, but also because they are relatively dark valued and low chroma. This means you need to mix a lot of pigment to produce a strong color, so they may not last long, depending on how you use them.
#2
Synthetic inorganic - Earth or metal pigments, factory made by combining raw chemicals and ores. These are easier to standardized, as it's monitored in the factories. These comprise about 80% of the world's pigment manufacture.
#3
Natural organic - Pigments extracted from animal or plant substances. Luckily no longer in use for the most part, due to issues with lightfastness.
#4
Synthetic organic - Carbon based pigments, often made of petroleum. Compounds such as petroleum, mimic the natural organic substance used as colorants, but do so in a more controlled way. This eliminates the lightfastness issues, and allows the color to not be affected by exposure to light.
I was asked about Quinacridone, and how it's used in multiple pigments, such as Quinacridone Rose /gold.
Quinacridone is a an organic molecule. Over the years, Quinacridone turned into the actual NAME for pigments, such as the Quinacridone Rose and Gold mentioned above.
But the only way of knowing the EXACT contents of a tube, is to ignore the name, and actually check the pigment and its constitution number, which we'll discuss next.
TUBES AND CONSTITUTION NUMBERS
Every tube should have a cl# (constitution number) listed on it.
Let's go back to our Quiacridone Rose example.
The Daniel Smith "Quinacridone Rose" is composed of PV19 (Pigment Violet 19). This pigment is made cl#73900 and cl#46500 (which I believe can be different for different brands).
By looking at these values we'll find they are Indigoid and Acridine respectively. Then you can check the properties of each one, and understand the exact material.
In this case, they are synthetic organic.
To understand the exact material of the constitution number, refer to the URLs I shared above. Here they are again:
1. https://en.wikipedia.org/wiki/Colour_Index_International
2. http://www.artiscreation.com/Color_index_names.html
*** End of transcript.
Phew!
I hope you enjoy this video, and I'll see you soon with another one (:
- Liron
*** Music Credits ***
Up In My Jam (All Of A Sudden) by - Kubbi https://soundcloud.com/kubbi
Creative Commons — Attribution-ShareAlike 3.0 Unported— CC BY-SA 3.0
http://creativecommons.org/licenses/by-sa/3.0/
Music provided by Audio Library https://youtu.be/tDexBj46oNI