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In 1856 Perkin invented the first synthetic dye - Mawei Violet, which made organic chemistry separate from a new discipline - dye chemistry. 1950s. Pattee and Stephen found that dyes containing dichlorotriazinyl groups were bonded to the hydroxyl groups on the fibers under alkaline conditions, marking the dye making the fiber coloring from the physical process to the chemical process, creating a synthetic application of reactive dyes The Dye is not limited to the dyeing and printing of textiles, it is in paint, plastic, leather, optoelectronic communication, food and many other departments to be applied.
Dye is able to make a certain color attached to the fiber on the material, and easy to fall off, discoloration. Dyes are usually dissolved in water, and some dyes require mordant to allow the dye to adhere to the fibers. Archaeological data show that dyeing technology in India and the Middle East has more than five thousand years of history. At that time the dyes from the flora and fauna or minerals, rarely treated.
Dyes are substances that make fibers and other materials colored, divided into natural and synthetic categories. Dyes are colored. But the color of the material is not necessarily a dye.
There are home colorants.
