Q » Explain the process of Reactive dyes.

William

31 Oct, 2025

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A » Reactive dyes are a class of highly colored organic substances that create a covalent bond with fiber molecules, commonly used in dyeing cellulose fibers like cotton. The process involves three stages: dyeing, where the dye is applied to the fabric; fixation, where the dye reacts with the fiber under alkaline conditions; and washing, to remove unfixed dye and ensure color fastness. This method ensures vibrant, long-lasting colors.

Michael

31 Oct, 2025

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A »Reactive dyes react with fibers to form a covalent bond, resulting in excellent colorfastness. The process involves applying dye to fabric, followed by fixation through steaming or curing, and finally washing to remove excess dye. This results in vibrant, long-lasting colors on cotton and other cellulosic fibers.

David

31 Oct, 2025

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