PERMABRIL® Bi-Functional Reactive Dyes for Rayon

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These products offer superior fastness properties on cellulose and cellulosic blends — especially fastness to perspiration, light, chlorine and peroxide.

PERMABRIL Bi-Functional Reactive Dyes are suited for exhaust and continuous application methods. They are used extensively for cold pad batch dyeing due to their superior alkaline stability and ability to react with cellulosic fibers at low temperatures.

These dyes exhibit little dependence on dyeing temperature and liquor ratio and have good wash-off properties.

PERMABRIL Yellow B4G 150%

PERMABRIL Yellow 3RX 150%

PERMABRIL Orange BF2R

PERMABRIL Red BF3B

PERMABRIL Red BFRR-MW

PERMABRIL Blue RN-A

PERMABRIL Blue BF-FBX

PERMABRIL Black FB

PERMABRIL Black SJ Hi Conc

Dyeing at 140°F

Prescour with 1% STANSCOUR BRC at 160°F for 20 minutes, then drop and rinse
Set bath at 90°F
Add x g/l salt (per salt chart below)
Add PERMABRIL Reactive Dyes (pre-dissolved at 160-180°F)
Run 10 minutes
Add 1/10 total amount Soda Ash over 10 minutes
Run 10 minutes
Add remaining 9/10 Soda Ash over 10 minutes (pH 10.8-11.2)
Run 10 minutes
Heat at 2°F/minute to 140°F and run 45 minutes
Sample – if shade is acceptable, drop bath
(when sampling shade, the swatch must be rinsed cool, rinsed warm and neutralized with 0.25% Acetic Acid, then scoured at 200°F – see production steps 12-18)
Rinse at 120°F for 10 minutes and drop bath
Rinse at 140°F for 10 minutes and drop bath
Neutralize at 120°F with 0.25% Acetic Acid (pH 7-8).
Run 10 minutes and drop bath
Set fresh bath with 120°F water
Heat to 200°F, hold 10 minutes and drop bath
Set bath at 120°F, hold 10 minutes and drop bath
Finish as usual

Salt and Soda Ash Recommendations for Cotton/Rayon

% Reactive Dye	g/l Sodium Chloride or Sodium Sulfate	g/l Soda Ash
0-0.25	30	5
0.26-0.50	50	5
0.51-1.00	60	10
1.01-2.00	60	10
2.01-3.00	80	10
3.01-5.00	80	10
Above 5.00*	80-100	10

*When dyeing above 5.00% the yield should increase with use of 100 g/l salt