

1.
BP - 778 (Vat Blue 1) [common name Indigo]
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Reddish Navy
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Reaction with concentrated sulfuric acid on cellulose
gives bluish green effect
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Moderate leveling abilities
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Low fixation
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Dye in multi-dip technique
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Most common for denim
2. Roycevat Brilliant Blue BFC Single Paste
(Vat Blue 6)
Roycevat Brilliant Blue BFC Double
Paste
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Bright Blue / Slightly redder
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Moderate leveling
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High fixation
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Printing - Flash Ageing
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Good Fastness Properties
3. Roycevat Navy Blue RA Paste (Vat Blue
18)
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Much Redder Navy
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Soap thoroughly to develop true hue
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High fixation
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Oxidation with bichromate does not alter hue
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Take precautions to ensure level dyeing pale hues
4. Roycevat Dark Blue BO Double Paste (Vat
Blue 20)
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Dull Bluish Violet - flares red
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Soap thoroughly to develop true hue
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Moderate leveling abilities
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Extra sodium formaldehyde sulfoxylate and urea
improves printing yield
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Oxidation by hydrogen peroxide and acetic acid to get
true shade
5. Roycevat Black SNA Double Paste (Vat
Black 16)
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Bluish Grey
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Only homogenous black
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Moderate leveling abilities
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High fixation
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Great for dull navies shaded with blues or violets
6. Roycevat Olive TRC Paste (Vat Black 25)
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Brownish Grey - flares green
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Moderate leveling abilities
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Dyes browner at higher temperatures
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High fixation
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Best for flash ageing printing
7. Roycevat Olive AR Single Paste (Vat
Black 27)
Roycevat Olive AR Double Paste
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Brownish Grey- flares red
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Very good leveling abilities
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Used also in Flash Age printing
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High fixation
8. Roycevat Black HF Paste (Mix)
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Deep Bluish-Black
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Strongest Black offered
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High Fixation
9. Roycevat Black MPP Paste (Mix)
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Blue-Black - Flares Red
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Excellent Fastness Properties
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High Fixation
10. Roycevat Black MD Paste (Mix)
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Bluer-Black
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High Fixation
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Excellent fastness properties
11. Roycevat Black KM Paste (Mix)
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Green-Black
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High Fixation
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Moderate leveling abilities
12. Roycevat Scarlet H4G Paste (Mix)
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Orangish - Red
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Excellent Fastness Properties
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High Fixation
13. Roycevat Brilliant Green Supra Double
Paste (Vat Green 1)
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Bright Green
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Very good leveling abilities
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Excellent fastness properties
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Can be used in paper stock coloration and soap
products
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High fixation
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Avoid strong alkaline print pastes
14. Roycevat Olive Green B Single Paste
(Vat Green 3)
Roycevat Olive
Green B Double Paste
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Dull Green
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Good leveling abilities
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Soap thoroughly to develop true hue
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Avoid strong alkaline printing pastes
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Oxidation with bichromate does not alter hue
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High fixation
15. Roycevat Black BB Double Paste (Vat
Green 9)
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Dull Green
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Good leveling abilities
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High fixation
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When dyeing deep hues for oxidation to blacks used
increased amount of NaOH
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Good fastness properties
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Chlorinate it will turn to true black
16. Roycevat Brown BR Paste (Vat Brown 1)
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Reddish Brown
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Very good leveling abilities
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Dischargeable in pale dyeing only
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High fixation
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Used for paper stock coloration
17. Roycevat Brown HRR-RP Paste (Vat Brown
57)
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Brown less red than Vat Brown 1
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High in pigment content
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Needs maximum reduction potential to get true shade
18. Roycevat Brown G Paste (Mix)
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Olive-Brown
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Excellent Fastness properties
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High fixation
19. Roycevat Brown LGM Paste (Mix)
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Olive-Brown
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Moderate leveling abilities
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High fixation
20. Roycevat Brown GT Paste (Mix)
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More Olive-Brown
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High Fixation
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Good leveling abilities
21. Roycevat Golden Yellow RK Paste (Vat
Orange 1)
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Bright Yellowish Orange
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Applicable in strongly alkaline print pastes
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Great fastness properties
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High Fixation
22. Roycevat Golden Orange RRT Paste
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Bright Reddish Orange
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Good leveling abilities
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High fixation
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Protect un-oxidized dyeing from direct sunlight
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Soap thoroughly to develop true hue
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Good fastness properties
23. Roycevat Brilliant Orange GR-RP Paste
(Vat Orange7)
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Yellowish Orange
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Good leveling abilities
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High fixation
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High caustic soda concentration essential for maximum
yield
24. Roycevat Violet 4R Paste (Vat Violet 1)
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Bright Bluish Violet - flares red
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Moderate leveling abilities
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Oxidize with hydrogen peroxide and acetic acid to get
true shade
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High fixation
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Poor hot pressing
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Good fastness properties