Dye | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-06-23

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Dye


00:00:40 1 Natural vs synthetic
00:01:17 2 History
00:04:02 3 Chemistry
00:04:54 4 Types
00:10:40 5 Food dyes
00:11:25 6 Other important dyes
00:12:23 7 Chromophoric dyes
00:14:10 8 Pollution



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Speaking Rate: 0.8603242527331184
Voice name: en-US-Wavenet-A


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SUMMARY
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A dye is a coloured substance that chemically bonds to the substrate to which it is being applied, this distinguishes dyes from pigments which do not chemically bind to the material they colour. The dye is generally applied in an aqueous solution, and may require a mordant to improve the fastness of the dye on the fiber.Both dyes and pigments are colored, because they absorb only some wavelengths of visible light. Dyes are usually soluble in water whereas  pigments are insoluble. Some dyes can be rendered insoluble with the addition of salt to produce a lake pigment.