Nylon Pretreatment
Presetting
To avoid creases, curling, and heat shrinkage during the dyeing of nylon fabrics, they must undergo desizing, scouring, and bleaching, followed by heat-setting prior to dyeing, with rapid and uniform cooling to achieve dimensional stability. However, for fabrics requiring a crepe effect, setting should only be carried out after dyeing at 150–160°C.
Recommended Process:
| Type |
Nylon 6 |
Nylon 6.6 |
| Regular Nylon |
180~195℃ |
15–20 seconds |
210~220℃ |
15–20 seconds |
| Bulk Nylon |
Below 160°C |
10–20 seconds |
Below 180°C |
10–20 seconds |
Desizing and Scouring
To remove sizing agents, oils, and impurities acquired during weaving, handling, and transportation, the following process is adopted:
| 1.0~3.0 |
g/L |
ANOKE® Chelating Dispersant A-137 |
| 1.0~5.0 |
g/L |
ANOKE® Deoiling Agent A-130 |
| 1.0~2.0 |
g/L |
Soda Ash |
Treat in water at 80°C with pH adjusted to 9.5–10 for 30 minutes, followed by thorough rinsing.
