PERMABRIL® Vinyl Sulfone Reactive Dyes for Rayon
These products offer superior fastness properties on cellulose and cellulosic blends — especially fastness to perspiration, light, chlorine and peroxide.
PERMABRIL Vinyl Sulfone 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.
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PERMABRIL Yellow 3RX 150% PERMABRIL Yellow B4G 150% PERMABRIL Yellow GR 110% PERMABRIL Yellow RRS PERMABRIL Golden Yellow RGB PERMABRIL Orange 3G 150% PERMABRIL Orange 3RA |
PERMABRIL Red 3BS PERMABRIL Red RB 133% PERMABRIL Red RRS PERMABRIL Violet 5R PERMABRIL Brill Blue R Special PERMABRIL Blue BB 133% PERMABRIL Blue RRS |
PERMABRIL Turquoise RP PERMABRIL Navy RGB PERMABRIL Green 6B 175% PERMABRIL Black B PERMABRIL Black FB PERMABRIL Black SJ Hi Conc |
Dyeing at 140F
- 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
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% Reactive Dye
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g/l Sodium Chloride or Sodium Sulfate
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g/l Soda Ash
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0-0.25
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30
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5
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0.26-0.50
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50
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5
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0.51-1.00
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60
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10
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1.01-2.00
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60
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10
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2.01-3.00
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80
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10
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3.01-5.00
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80
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10
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Above 5.00*
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80-100
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10
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*When dyeing above 5.00% the yield should increase with use of 100 g/l salt
PERMABRIL Brill Blue R Special requires reduced salt
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% Reactive Dye
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g/l Sodium Sulfate
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Up to 0.50
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20
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0.51-2.00
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30
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2.01-4.00
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40
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Above 4.00
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50
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