Chemicals in Textile Dyeing and Printing

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Questions and Answers

What is the purpose of using catalysts and oxygen carriers in textile dyeing?

Catalysts and oxygen carriers are used to prevent fibre damage during steaming, accelerate the final color development by oxidation, reduce the risk of oxidization, and include substances such as copper sulphide, ammonium vanadate, and potassium ferrocyanide.

What is the purpose of using Catalyst & Oxygen Carrier in textile dyeing?

Catalyst & Oxygen Carrier are used to prevent fibre damage during steaming, accelerate the final color development by oxidation, reduce the risk of oxidization, and include substances like Copper sulphide, Amimonium vanadate, Potassium ferrocyanide.

Swelling agents help to reduce ______ of the fibers.

crystallinity

Acids and alkalis are used to develop the ______ of printed fabric and fix dye on the fabric permanently.

color Signup and view all the answers

What is the function of acids/alkalis in textile dyeing?

Acids/alkalis are used to maintain pH, develop the color of printed fabric, and fix dye on the fabric permanently. Examples of such substances include organic acid, alkali KOH, NaOH, Na2CO3, potassium carbonate, and sodium bicarbonate/acetate. Signup and view all the answers

What is the role of Acids/Alkalis in textile dyeing?

Acids/Alkalis are used to maintain PH, develop the color of printed fabric, fix dye on the fabric permanently, and include substances like Organic acid, Alkali KOH, NaOH, Na2CO3, pottasium carbonate, sodium bicarbonate/acetate. Signup and view all the answers

Urea is an agent that assists the ______ of dyes.

fixation Signup and view all the answers

What is the function of Swelling Agent in textile dyeing?

Swelling Agent is used to create big size holes of the fibres, help to swell the fibre structure, reduce crystallinity, help the easy penetration of dye molecule inside the fibre polymer, and include substances like Polyethylene flycol, Phenols, DEGDA (di-ethylene glycol diacetate). Signup and view all the answers

What is the role of swelling agents in textile dyeing?

Swelling agents are used to create big size holes of the fibers, help to swell the fiber structure, reduce crystallinity, and help the easy penetration of dye molecule inside the fiber polymer. Examples of such substances include polyethylene flycol, phenols, and DEGDA (di-ethylene glycol diacetate). Signup and view all the answers

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