(FT) - Japan’s most famous brand of potato chips will drain the colour from its packaging this month as the war in the Middle East squeezes supplies of petroleum-based colourants and manufacturers grapple with “ink-flation”.
@financialtimes.com
www.ft.com/content/3b40...
@financialtimes.com
www.ft.com/content/3b40...
May 12, 2026 at 11:00 AM
(FT) - Japan’s most famous brand of potato chips will drain the colour from its packaging this month as the war in the Middle East squeezes supplies of petroleum-based colourants and manufacturers grapple with “ink-flation”.
@financialtimes.com
www.ft.com/content/3b40...
@financialtimes.com
www.ft.com/content/3b40...
...region, the colourants were added by the local craftsmen. To produce the seamless bracelets a glass bead was made and gradually enlarged with a metal rod and a cone.
📷 Archäologische Staatssammlung München. 🧵2/2
📷 Archäologische Staatssammlung München. 🧵2/2
April 11, 2025 at 11:54 AM
...region, the colourants were added by the local craftsmen. To produce the seamless bracelets a glass bead was made and gradually enlarged with a metal rod and a cone.
📷 Archäologische Staatssammlung München. 🧵2/2
📷 Archäologische Staatssammlung München. 🧵2/2
Since people asked me what's in green military smoke grenades, the colourants in the US M18 smoke grenade are 1,4-Bis(4-methylanilino)anthracene-9,10-dione and spirit soluble quinoline yellow.
June 20, 2025 at 8:49 AM
Since people asked me what's in green military smoke grenades, the colourants in the US M18 smoke grenade are 1,4-Bis(4-methylanilino)anthracene-9,10-dione and spirit soluble quinoline yellow.
Our article on colourants in parchment fragments has finally been published! I had a small part to play, as "author nr. 6", providing the context of the colours used in some of the fragments tested.
Thanks to Thea Winther for including me in this exciting project!
www.nature.com/articles/s40...
Thanks to Thea Winther for including me in this exciting project!
www.nature.com/articles/s40...
The Palette of the Medieval North – a non-invasive investigation of the colourants of ten fragments from Medieval Swedish Manuscripts - npj Heritage Science
npj Heritage Science - The Palette of the Medieval North – a non-invasive investigation of the colourants of ten fragments from Medieval Swedish Manuscripts
www.nature.com
March 3, 2025 at 12:20 PM
Our article on colourants in parchment fragments has finally been published! I had a small part to play, as "author nr. 6", providing the context of the colours used in some of the fragments tested.
Thanks to Thea Winther for including me in this exciting project!
www.nature.com/articles/s40...
Thanks to Thea Winther for including me in this exciting project!
www.nature.com/articles/s40...
Earthenware glaze with found/foraged colourants:
A: none
B: iron oxide (from beach junk)
C: copper oxide (from discarded plumbing)
D: high manganese sandstone
E: high copper basalt
F: blue glass
G: green glass
H: lots of copper oxide
#pottery #ceramics #canadianceramics #glaze #wildglaze
A: none
B: iron oxide (from beach junk)
C: copper oxide (from discarded plumbing)
D: high manganese sandstone
E: high copper basalt
F: blue glass
G: green glass
H: lots of copper oxide
#pottery #ceramics #canadianceramics #glaze #wildglaze
August 17, 2025 at 5:10 PM
Earthenware glaze with found/foraged colourants:
A: none
B: iron oxide (from beach junk)
C: copper oxide (from discarded plumbing)
D: high manganese sandstone
E: high copper basalt
F: blue glass
G: green glass
H: lots of copper oxide
#pottery #ceramics #canadianceramics #glaze #wildglaze
A: none
B: iron oxide (from beach junk)
C: copper oxide (from discarded plumbing)
D: high manganese sandstone
E: high copper basalt
F: blue glass
G: green glass
H: lots of copper oxide
#pottery #ceramics #canadianceramics #glaze #wildglaze
Celtic Glass bracelets from Bern-Bümpliz, dating around 200 BC.
To produce the seamless colourful glass bracelets, a glass bead was made and gradually enlarged with a metal rod and a cone. The raw glass was imported from the eastern Mediterranean region, the colourants... 1/2
🏺
To produce the seamless colourful glass bracelets, a glass bead was made and gradually enlarged with a metal rod and a cone. The raw glass was imported from the eastern Mediterranean region, the colourants... 1/2
🏺
March 16, 2024 at 8:27 AM
Celtic Glass bracelets from Bern-Bümpliz, dating around 200 BC.
To produce the seamless colourful glass bracelets, a glass bead was made and gradually enlarged with a metal rod and a cone. The raw glass was imported from the eastern Mediterranean region, the colourants... 1/2
🏺
To produce the seamless colourful glass bracelets, a glass bead was made and gradually enlarged with a metal rod and a cone. The raw glass was imported from the eastern Mediterranean region, the colourants... 1/2
🏺
Ten rock samples ready to be analyzed for (hopefully) iron, chromium, manganese, titanium, nickel, zirconium and other glaze colourants.
#wildglaze #ceramicglaze #ceramics #pottery
#wildglaze #ceramicglaze #ceramics #pottery
September 14, 2025 at 6:07 PM
Ten rock samples ready to be analyzed for (hopefully) iron, chromium, manganese, titanium, nickel, zirconium and other glaze colourants.
#wildglaze #ceramicglaze #ceramics #pottery
#wildglaze #ceramicglaze #ceramics #pottery
Meeps Magpie: There's a good paper about Egyptian Blue, it also mentions other blue colourants like lapis
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
July 19, 2026 at 6:34 PM
Meeps Magpie: There's a good paper about Egyptian Blue, it also mentions other blue colourants like lapis
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Today is #NationalTattooDay. Here's a look at the pigments and dyes used in tattooing, as well as what we know about the health concerns: www.compoundchem.com/2020/07/17/t...
July 17, 2024 at 2:40 PM
Today is #NationalTattooDay. Here's a look at the pigments and dyes used in tattooing, as well as what we know about the health concerns: www.compoundchem.com/2020/07/17/t...
A couple of years ago here in Melbourne at the national gallery of Victoria, there was a mesmerising exhibition about indigo and had pieces from cultures around the world.
www.ngv.vic.gov.au/exhibition/b...
www.ngv.vic.gov.au/exhibition/b...
Blue: Alchemy of a Colour | NGV
Cobalt blue pigment and indigo blue dye are two of the most distinctive and influential colourants employed by artists worldwide. Blue: Alchemy of a Colour explores how artists have created works…
www.ngv.vic.gov.au
May 26, 2026 at 11:59 PM
A couple of years ago here in Melbourne at the national gallery of Victoria, there was a mesmerising exhibition about indigo and had pieces from cultures around the world.
www.ngv.vic.gov.au/exhibition/b...
www.ngv.vic.gov.au/exhibition/b...
(I'll include some troubleshooting notes at the end of this.)
Next thing is dissolving aluminium sulphate (our alum) in the dye, making sure it's still warm (45-70°C.)
Alum is a mordant that binds to water soluble colourants. It's used in dyeing textiles & paper as well as making lake pigments…
Next thing is dissolving aluminium sulphate (our alum) in the dye, making sure it's still warm (45-70°C.)
Alum is a mordant that binds to water soluble colourants. It's used in dyeing textiles & paper as well as making lake pigments…
June 6, 2026 at 4:42 PM
(I'll include some troubleshooting notes at the end of this.)
Next thing is dissolving aluminium sulphate (our alum) in the dye, making sure it's still warm (45-70°C.)
Alum is a mordant that binds to water soluble colourants. It's used in dyeing textiles & paper as well as making lake pigments…
Next thing is dissolving aluminium sulphate (our alum) in the dye, making sure it's still warm (45-70°C.)
Alum is a mordant that binds to water soluble colourants. It's used in dyeing textiles & paper as well as making lake pigments…
Primary colours are colourants or coloured lights that can be mixed in varying amounts to produce a gamut of colours. This is the essential method used to create the perception of a broad range of colours in, e.g., electronic displays, colour printing, and paintings.
December 27, 2025 at 2:46 PM
Primary colours are colourants or coloured lights that can be mixed in varying amounts to produce a gamut of colours. This is the essential method used to create the perception of a broad range of colours in, e.g., electronic displays, colour printing, and paintings.
Look pottery bitches!
I MADE GLAZE!!!!
I MADE GLAZE!!!!
June 14, 2025 at 12:13 AM
Look pottery bitches!
I MADE GLAZE!!!!
I MADE GLAZE!!!!
Some warning. When you see those “healthy recipes” on Instagram that say “Make your own Sneakers bar, mix peanut butter with chocolate chips, add maple syrup and cottage cheese…etc”
That’s a lot of calories. It may not have preservatives and colourants but still a lot of calories.
That’s a lot of calories. It may not have preservatives and colourants but still a lot of calories.
July 22, 2026 at 9:42 AM
Some warning. When you see those “healthy recipes” on Instagram that say “Make your own Sneakers bar, mix peanut butter with chocolate chips, add maple syrup and cottage cheese…etc”
That’s a lot of calories. It may not have preservatives and colourants but still a lot of calories.
That’s a lot of calories. It may not have preservatives and colourants but still a lot of calories.
Delighted and relieved that our peer-reviewed article, with the first on colourants in Irish art, is published with @amjournal.bsky.social.
Free to access - amjournal.org/current-papers.
Free to access - amjournal.org/current-papers.
January 6, 2025 at 11:00 AM
Delighted and relieved that our peer-reviewed article, with the first on colourants in Irish art, is published with @amjournal.bsky.social.
Free to access - amjournal.org/current-papers.
Free to access - amjournal.org/current-papers.
There was a spin to win wheel. Archie won some venison strips and got a free sample of… checks bag… fish tiddlers. If you tiddle fish in Norway you get fed to dogs. Let that be a lesson, fish tiddlers!
June 20, 2026 at 11:10 AM
There was a spin to win wheel. Archie won some venison strips and got a free sample of… checks bag… fish tiddlers. If you tiddle fish in Norway you get fed to dogs. Let that be a lesson, fish tiddlers!
📣 New CBE JU-funded project: IRIS will scale up #biobased #colourants for textiles from forestry and agriculture sidestreams and captured CO₂.
With €7m in CBE JU funding, it aims to cut greenhouse gas emissions by 40–70% and improve textile recyclability to at least 80%.
With €7m in CBE JU funding, it aims to cut greenhouse gas emissions by 40–70% and improve textile recyclability to at least 80%.
September 27, 2026 at 6:11 AM
📣 New CBE JU-funded project: IRIS will scale up #biobased #colourants for textiles from forestry and agriculture sidestreams and captured CO₂.
With €7m in CBE JU funding, it aims to cut greenhouse gas emissions by 40–70% and improve textile recyclability to at least 80%.
With €7m in CBE JU funding, it aims to cut greenhouse gas emissions by 40–70% and improve textile recyclability to at least 80%.
Kaori Someya
Contemporary Japanese artist
Falling Stars, 2020
13.5 x 17.1 inch
Kumohadamashi Japanese Paper, Mineral Pigments, Colourants
#Japaneseart
Contemporary Japanese artist
Falling Stars, 2020
13.5 x 17.1 inch
Kumohadamashi Japanese Paper, Mineral Pigments, Colourants
#Japaneseart
March 23, 2025 at 1:52 AM
Kaori Someya
Contemporary Japanese artist
Falling Stars, 2020
13.5 x 17.1 inch
Kumohadamashi Japanese Paper, Mineral Pigments, Colourants
#Japaneseart
Contemporary Japanese artist
Falling Stars, 2020
13.5 x 17.1 inch
Kumohadamashi Japanese Paper, Mineral Pigments, Colourants
#Japaneseart
Long live food colourants
April 11, 2025 at 3:59 PM
Long live food colourants
Arsenic was common during the Victorian era.. used in small doses for medicines, for wallpaper (Scheele’s Green), and for food colourants.
The 1851 Arsenic Act was the first attempt at regulation, restricting sales to adults & keeping records, but anyone could sell it
The 1851 Arsenic Act was the first attempt at regulation, restricting sales to adults & keeping records, but anyone could sell it
October 31, 2024 at 8:50 PM
Arsenic was common during the Victorian era.. used in small doses for medicines, for wallpaper (Scheele’s Green), and for food colourants.
The 1851 Arsenic Act was the first attempt at regulation, restricting sales to adults & keeping records, but anyone could sell it
The 1851 Arsenic Act was the first attempt at regulation, restricting sales to adults & keeping records, but anyone could sell it
Chemists are developing developing new colourants that are based on structural colour rather than pigments and are therefore longer lasting, more vibrant and safer.
Rebecca Trager reports:
#ChemSky
www.chemistryworld.com/news/butterf...
Rebecca Trager reports:
#ChemSky
www.chemistryworld.com/news/butterf...
Butterfly-inspired structural colours could replace synthetic pigments
Inspired by nature, chemists in the US are working to create vibrant, long-lasting and safer colours that could be used in food, cosmetics and paints
www.chemistryworld.com
September 10, 2026 at 8:33 AM
Chemists are developing developing new colourants that are based on structural colour rather than pigments and are therefore longer lasting, more vibrant and safer.
Rebecca Trager reports:
#ChemSky
www.chemistryworld.com/news/butterf...
Rebecca Trager reports:
#ChemSky
www.chemistryworld.com/news/butterf...
You can build up allergies, particularly to colourants. It's a particular problem with the red colourants in hair dye, for instance.
March 8, 2025 at 3:36 PM
You can build up allergies, particularly to colourants. It's a particular problem with the red colourants in hair dye, for instance.
Seriously, you have to test for toxins that make you stupid, in your food and water, especially in Trump land. Could be pesticides or food additives, colourants, preservative chemicals? If you read ingredient list, it might be a clue. Test the air, food and water.
December 17, 2025 at 7:11 AM
Seriously, you have to test for toxins that make you stupid, in your food and water, especially in Trump land. Could be pesticides or food additives, colourants, preservative chemicals? If you read ingredient list, it might be a clue. Test the air, food and water.
Wotsit Fact: The same colourants applied to this product are also applied to the currently sitting US President.
September 24, 2025 at 8:10 PM
Wotsit Fact: The same colourants applied to this product are also applied to the currently sitting US President.
Ultra-processed cheese-like substance with colourants and artificial flavours, man! We all needs it like a vitamin.
September 20, 2026 at 4:50 PM
Ultra-processed cheese-like substance with colourants and artificial flavours, man! We all needs it like a vitamin.