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Sulphuride dyes, which are to be dissolved with alkali sulfide, are used mainly in cotton fibre dyes and also in cotton/width textiles. They are low-cost and the dyes are generally resistant to the sun, but they are not colourful enough. Common varieties include black sulfide, blue sulfide, etc。
(i) characteristics
Sulphuride dyes are insoluble in water and are required to be dyeed using or other reduction agents, returning the dyes to soluble invisibility. It is associated with the fibres and it dyes them, and then it returns to insoluble state and is secured by oxidation. So the sulfide dye is also a reduced dye. Sulphurized dyes can be used in dyeing fibres such as cotton, lumber, glue, which are made in a simpler, less costly, monochrome, collating, sun-resisting and grinding. Red, purple and darker in the chromatography are missing and suitable for dyeing。
I'm sorryIi)Color machine
Sulphurized dyes are dissolved into dyes, resulting in chromosomes that are adsorbed by cellulose fibres and treated with air oxidation, so that cellulose fibres can display the required colours. The sulfide dye matrix has no accompaniment for fibres, and its structure contains sulphur, disulphur or polysulphur keys, which have been reduced to hydrogen sulfur by reductive agents and become sodium sodium sodium soluble in water. The reason for the good relational strength of the invisibility to cellulose fibres is the larger molecules of the dye, which in turn produces greater van der waals and hydrogen key dynamics between the fibres。
Colored dyes -- they create gorgeous colors。
For reference only, more alkaline dyes, please call (13235,674) or add micro-credit。
