Manufacturers add artificial dyes to these threads before weaving them into a fabric.
2.
Yarn may be used undyed, or may be coloured with natural or artificial dyes.
3.
For example, Sekem clothing is produced from its organically grown cotton, without artificial dyes.
4.
Artificial dyes could be applied through powders, gels and bleach.
5.
All of Old Orchard s products are preservative-free, made from natural ingredients, and contain no artificial dyes.
6.
:: : : : In zoos you'll often see whitish flamingos, since artificial dyes turning them pink are costly.
7.
In her work Abbott used natural and artificial dyes, and materials ranging from art silk and flax fibre to alkathene piping and burglar alarm tape.
8.
Hematoxylin is used to stain silver salts and artificial dyes . "'Histochemistry "'refers to the science of using chemical reactions between laboratory chemicals and components within tissue.
9.
Weaving is now the major economic activity in both villages, with special designs being passed down through the families; both traditional and artificial dyes may be used.
10.
Since the mid-19th century, however, humans have produced artificial dyes to achieve a broader range of colors and to render the dyes more stable to resist washing and general use.
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