100% Nylon Fabric Dyeing Process With Acid Dyes

Leveling (P^H=4.50-5.0)

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Dyes Dosing 20-minute Temperature 40⁰C

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Runtime 10 minute

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Temperature Increase 98^⁰C (1⁰C/minute)

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Runtime 30 minute

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Colling 80⁰C (1^⁰C/minute)

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Shade check

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If everything ok then

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Bath Drain

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Cold rinse 10 minute

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Soaping agent Inject (p^H5.00)

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Raise the temperature to 80⁰C

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Runtime 15minute

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Cold wash10 minute

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Fixing

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Cold water wash 15 min

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If the water is clear then

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Softener   (p^H 5.00-5.50)

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Unload

Process Description Of Nylon Dyeing Process:

In the nylon fabric dyeing process, Load the fabric at a normal 30⁰Ctemperature. Firstly hot the fabric at 80⁰c with oxalic acid and detergent to remove the dust, dirt, iron, etc. Then Control the ph between 4.5-5. Inject the leveling agent and raise the temperature to 40⁰C. Dossing the dyes for 20min.

After that rise, the temperature was 980c with a grade of 10c per minute. Here grade is essential for better leveling of dyes stuff. Run here for 30min. Cooling at 80 with grade 10⁰C per min. Check the shade with the required standard. Drain the dying bath if the shade is ok.

If it a not ok dye can add to the dye bath and rise the temperature again. shade check after cooling the at 80⁰c. If ok then drain.

Here rinse with a need of up to 10min to remove the loose dyes from the fabric surface. Speaking needs according to shade %.

Finally fixing agent is used for better fix-up of acid dyes and unload the fabric with ph 5-5.5.

100% Nylon knit fabric dyeing process flow chart:

Conclusion:

This Nylon fabric dyeing process is using many reported factories for production. They get better results from this process. My tips and tricks for using this process for better results-

• PH must have control properly.
• Should not use temperature upper than 100⁰C.
• Stenter and dryer should be at 100⁰C.

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