Working Flowchart of Knit Dyeing

Last updated on June 22nd, 2023 at 06:30 pm

The main object of dyeing process is to give woven or knitted fabric its intended color, crucial to its ultimate use. The process can be carried out at different stages of fibre processing, i.e. in different forms: staple, yarn, fabric (rope or open-width), and piece. It is done in a special type of solution containing dyes and other required chemicals. As a result of dyeing, dye molecules make uncut chemical bond with fibre molecules.

Winch dyeing machine

The Process Flowchart of Knit dyeing

Tank filling with water

Fabric loading

Addition of Anti-creasing + Sequestering agent (600 c, inject)

Detergent (inject)

Soda + Caustic (dosing 10′)

H2O2 (700c, inject)

Temperature rise (1100c for 60 minutes)

Temperature is decreased for sample check

Hot wash

P.K.K (980c for 10 minutes)

Rinse & Drain

Acid (550c for 10 minutes, PH check-4.5)

Enzyme (600c for 60 minutes and then sample checked)

Rinse & Drain

Tank again filled with water

Temperature raised to 600c and PH checked 5.5)

Leveling agent (inject, run time 5min)

Salt 1/3 (run time 10 minutes)

Dye (dosing, 600c for 30 minutes)

Salt 2/3 (run time 15 minutes)

Steam down (600c, sample check)

Soda (dosing, 600c for 60 minutes)

Hot wash (900c for 10 minutes)

Rinse (3 times)

Acid (400c for 10 minutes, sample check)

Soaping

Acid

Rinse (1 time)

Softener (450c for 10 minutes, sample check)

Cold wash

Unload fabric

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He is Abu Sayed, the founder of the blog site Textile Apex. He is a Textile Engineer having eight years plus practical experience in the Textile and Clothing industries. With a deep love for fashion and a keen eye for detail, he combines his creative flair with extensive knowledge to offer insightful and engaging content to his readers.
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