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Dyes and Intermediates
The dye industry uses a host of speciality chemicals at different stages of the dyeing process. These chemicals are essential for achieving the desired colour and properties in textiles. Soham has been handling these raw materials for decades now. Here are some key types of chemicals used in the dye industry that are available with Soham.
Dye Intermediates
Dye intermediates are the building blocks for dyes. They are used to manufacture various types of dyes, including reactive dyes, disperse dyes, acid dyes, and direct dyes.
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Reactive Dyes
Reactive dyes are commonly used in the textile industry for cellulosic fibers like cotton and rayon. They form a covalent bond with the fiber, resulting in good colour fastness.
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Disperse Dyes
Disperse dyes are used for synthetic fibers like polyester and nylon. They are dispersed in water and have good colour fastness properties.
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Acid Dyes
Acid dyes are suitable for protein fibers such as wool and silk. They are applied in an acidic dye bath and form ionic bonds with the fibers.
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Direct Dyes
Direct dyes are used for dyeing natural fibers like cotton, wool, and silk. They are applied directly to the fabric without the need for a mordant.
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Sulphur Dyes
Sulphur dyes are commonly used for dyeing cellulosic fibers. They provide deep shades and are known for their cost-effectiveness.
Vat Dyes
Vat dyes are primarily used for cellulosic fibers and provide excellent colour fastness. They require a reducing agent to become soluble in water.
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Azo Dyes
Azo dyes are a class of synthetic dyes with the azo functional group. They are widely used in the textile industry for various fibers.
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Auxiliaries for Dyeing
Various auxiliary chemicals are used to assist in the dyeing process, such as levelling agents, dispersing agents, and wetting agents.
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Fixing Agents
Fixing agents are used to enhance the colour fastness of dyed fabrics, ensuring that the dye molecules are securely attached to the fibers.
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Eco-Friendly and Sustainable Dyes
With increasing environmental awareness, there is a growing interest in eco-friendly and sustainable dye options, including natural dyes and low-impact synthetic dyes.