Using minerals to dye yarn is not a new invention and is used in certain extent in the carpet manufacturing. By combining these a lot of different nuances can be used when colouring the yarn.
These are the most used minerals for dyeing:
OCHRE, a kind of iron ore, also called limonite which is a earth mineral oxide. It is used for yellow, brown and red nuances.
MALACHITE, an intense green mineral, actually coppercarbonate mixed with copperhydroxide. Breaks from time to time as copper ore. Used for green nuances.
MANGANESE, a metallic element. Used for black nuances.
CINNABAR, a heavy reddish mineral, with a metallic adamantine luster. It is made from quicksilversulfide. Used for red nuances.
AZURITE, a blue/darkblue copper mineral. It is cristalized and often found together with the green mineral malachite. Both are products from erosion and oxidation from copper mineral. Used for blue nuances.
LEAD, used for red nuances.
ARAGONITE, usually colourless or white mineral. Used for white nuances.
- LAPIS LAZULI,also known as lapis, a blue rock. Consists of a mixture of azurite and calcite, pyroxenite and other silicateminerals besides pyrite. Used for blue nuances.
Plant and natural dyes
Colouring yarn is a true art and there are many different ways of doing this.
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Towards the end of the 19th century aniline dyes were introduced to speed up the process of colouring.
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