Chemistry, asked by BaluKutty, 1 year ago

what happen or what is the reaction between the Fabric and dye during dying process of fabrics ?

Answers

Answered by kristian1

Dyeing is the application of dyes or pigments on textile materials such as fibers, yarns, and fabrics with the objective of achieving color with desired fastness.

BaluKutty: what happens there

BaluKutty: my professor ask me...what is the reaction between them?

kristian1: Reactive dye. In a reactive dye, a chromophore (an atom or group whose presence is responsible for the colour of a compound) contains a substituent that reacts with the substrate. Reactive dyes have good fastness properties owing to the bonding that occurs during dyeing.

BaluKutty: what is the bondig

BaluKutty: how did they involve bonding...?

Answered by dev25418

During the coloration process, a large percentage of the dye does not bind to the fabric and is lost to the wastewater stream. Approximately 10-15% dyes are released into the environment during dyeing process making the effluent highly colored and aesthetically unpleasant. Public perception of water quality is greatly influenced by the colour. So, the removal of colour from wastewater is often viewed as more important than the removal of the soluble colourless organic substances.

BaluKutty: the remaining percentage of dyes...That how they react...what is the reaction...?

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