Vat Green 1 is generally dark green powder, insoluble in water, alcohol, chloroform and toluene. Slightly soluble in acetone, o-chlorophenol, nitrobenzene, pyridine (heat); Soluble in tetrahydronaphthalene (hot). Is red and purple in the sulfuric acid, diluted precipitation. After green dye generated in the alkaline solution of rongalite leuco body is blue, the acid in the solution of rongalite is bright red. Restore brilliant green B and restore brilliant green FFB is with the dye structure, restore brilliant green B for crude product, light blue, other properties are the same.
TRADE NAME:Vat Brilliant Green 3B,Vat Brilliant Green FFB,Cibanon Green BF
Key features
- Excellent wash and light fastness
- High resistance to perspiration and rubbing
- Uniform dyeing with bright green shade
- Suitable for cotton, viscose, and other cellulosic fibers
- Stable under high temperature and alkaline conditions
- Low migration and excellent build-up on fabric
Technical Specifications
- CAS NO: 128-58-5
- CI.NO: 59825
- Molecular Formula: C36H20O4
- Molecular Weight: 516.54
- Shade: Brilliant green
Dyeing depth g/L | 20 |
Dyeing method | IN IW |
Leuco color | Blue |
Leveling property | ▲▲ |
Dead cotton | ▲ |
Light (Xenon test 1/12) | 6 |
Light (Xenon test 1/1) | 7-8 |
Light (Xenon test 2/1) | 7-8 |
Colour Fastness Test
Sun fastness | Soping(95℃) | Perspiration | Rubbing | Ironing | Bleach resistant | Mercerizing |
Standard Depth | 1/12 Depth | Sample change | White stained | Sample change | White stained | Dry | Wet | White stained | After 4h | Chlorine bleaching | Oxygen bleaching | Sample change | White stained |
7~8 | 6 | 4~5 | 5 | 5 | 5 | 4~5 | 4 | 2~3 | 4~5 | 4~5 | 4~5 | 4~5 | 5 |
Application:
Vat Green 1 Mainly used for cotton fiber dyeing and printing, also can be used for polyester/cotton blended fabric dyeing, the leuco is mainly used for cotton knits dyeing, but also can be used for plastic, soap and paper coloring.
Vat Green 1 Use condition:
- 1.Restore Vat Green 1(vat brilliant green FFB) for jig dyeing of cotton products or impregnation, the most appropriate to use a method, also available b when the color matching method, c method. Dry cylinder reduction to 10 ~ 15 min, reduction temperature 50 ~ 60 ℃, dry cylinder stable time should be more than 60 min.
- 2.Reduction of cotton fiber of brilliant green FFB leuco high affinity, good levelness, dyeing curve as shown in figure 4, 5-28. The dead cotton covering power medium. After dyeing, after bathing oxidation can obtain normal colours. Restore vat brilliant green FFB and reduction yellow GCN light such as brittle dye color matching, printing and dyeing products light brittleness has obvious ease, is the main dye color yarn dyed fabric, and the fine powder is widely used in the suspension of cotton fabric and polyester/cotton blended fabric pad dyeing.
- 3.Vat Green 1 is one of the most important VAT dyes for cotton printing.the printing pulp is prepared with caustic soda during direct printing, and then oxidized with sodium borate or hydrogen peroxide after printing.the discharge effect of VAT brilliant green FFB is poor, and it is only suitable for light and medium color discharge printing, mainly used for ground color discharge of insoluble azo dyes.
- 4.When viscose fibers are dyed by VAT bright green FFB, the dyeing temperature is lower and the color is darker. Dyeing temperature is higher, the color is normal color slants dark. Stick cotton blended fabric dyeing, viscose fiber group color darker. D suspension cotton blended fabric pad dyeing, dyeing results are consistent. Single dye whalen, colour and lustre are generally shallow and blue than single dyed cotton. Used for thermosol dyeing polyester-cotton (65/35) fabric, polyester composition with serious color (dark blue), pad dyeing with disperse dye bath can't get all one color. When used for polyester/cotton blended fabric printing, Due to the need for thermal setting in the subsequent processing, the color is slightly dimmer, but still meet the quality requirements of the product.
- 5.printed and dyed fabric is treated with BHES resin, and the color is darker and darker.
Precaution
Restore vat bright green FFB should be stored in dry, cool and ventilated place to avoid damp.
What fibers are compatible with Vat Green 1?
Vat Green 1 works best on cotton, viscose, and other cellulosic fibers, ensuring even dyeing and deep green shades.
How resistant is Vat Green 1 to washing and light?
This vat dye exhibits excellent wash and light fastness, making it suitable for both indoor and outdoor textile applications.
Can Vat Green 1 be used for leather dyeing?
Yes, Vat Green 1 provides stable, uniform green coloration on leather surfaces with minimal migration or unevenness.
What is the recommended application method for Vat Green 1?
It is typically applied using vat dyeing techniques, including pad-batch, continuous, or traditional vat dyeing processes under alkaline conditions.
How does Vat Green 1 perform under high temperature or alkaline conditions?
The dye maintains its stability and color intensity even under high temperatures and strong alkaline environments.
