How to Continuous One-Bath/Thermofix Dye Cotton Using Orco Reactive BF-Series™ Dyes
- Properly prepare and prescour goods. If the substrate being processed is rayon, do not exceed a pH of 9 as it will cause saponification of the fiber.
- Pad goods through bath at room temperature containing;
X gr/L(oz/gal) BF-Series™ reactive dyes properly prepared
2-5 oz/gal(15-38gr/L) Sodium Alginate (5% Solution)
1.25-2.5 oz/gal(10-20 gr/L) Sodium Bicarbonate
1.25 oz/gal(10 gr/L) Orcotol MN Powder™
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- Dry goods @ 225°F(110°C) for 2 minutes.
- Thermofix @ 300°F(150°C) for 2-3 minutes.
- Wash excess or unfixed dye by cold rinsing, then a warm neutralizing rinse @ 120°F(50°C) using acetic acid.
- Thoroughly hot rinse.
- Soap at boil using 0.25 oz/gal (2gr/L)) Orcopon KP™.
- Warm rinse then a final cold rinse.