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Product Details:
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| Brand Name: | WLD | Certification: | ISO/REACH/BV/INTERTEK |
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| Purity: | 100% | Customization: | Accepted |
| Application: | Cotton Fabric | Experience: | : Over 20 Years |
| High Light: | natural fabric dye,fabric colour dye |
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Indanthrene Textile Dyestuff C I Vat Violet 9 Vat Brilliant Violet 3B
Products Details
1. Product Specifications
Brand World vat dyes produced by jiangsu world chemical co.ltd.belong to the type of anthraquinone and anthrancene ketons,which is applied for the dyeing of cotton,linen,rayon and blended fabric matericals.It appears to the environmental dustpro of particles with very good water diffusion,uniformity of dispersion and anti-cohesion of suspension.It is particularly applicable to high-speed continuous dyeing and continuous padding with automatic mixing owning to its fast speed of reduction.While it is also suitable for hidden color and suspension dyeing processes in deep-dyeing.
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Appearance |
red powder |
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leuco color |
violet |
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light fastness(xenon test) |
6 |
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washing fastness |
4 |
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Dissolution in water |
Not dissolved in water |
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dry rubbing fastness |
3-4 |
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wet rubbing fastness |
3-4 |
Vat dyes dyeing process
Vat dyes do not dissolve in water, while when reduced to be leuco salt by reducing agent under alkaline conditions, they can dissolve in water and get feature of immediacy with cellulose fibers, which is the way to achieve the purpose of dyeing. Then stable shade and good color fastness would come out via oxidation and soaping.
Reduction of dyes
Insoluble reducing dye will change into soluble leuco.
Different levels of the best staining methods are brought out according to the reduction dyes’ reduction potential and level of its immediacy to fibers.
Dye-uptake of leuco
The leuco is absorbed by fiber and then it is diffusing into the fiber.
It is necessary to use soft water or softened water in dyeing process. Hereby it is suggested to add the water softener for 1g/L to some poor quality cotton calcium, magnesium ions, but also the iron, copper ions which are absorbed by the pipe into the dye bath, and finally keep the solubility of leuco.
The sodium sulfate could increase the dyeing absorption rate, and surely it is also a good promoter. So it can be added into the dye baths with medium or low immediacy according to the demand. Referring to 3.13.
Leuco Oxidizing
The leuco absorbed by fiber is oxygenated and changed into the former insoluble vat dyes, then it colors.
Scour them in 2-3 baths with soft ware before oxygenation, avoiding to be oxygenated with alkali.
Hydrogen peroxide is most suitable for suspension padding, while after oxygenation, it should be in soap boiling immediately without washing.
The sodium perborate is mild in very widely use. It can be bathed with the next procedure (referring to soap boiling).
Soaping treatment
The stable shade and good color fastness would come out via soap boiling.
Through high-temperature soap boiling, the floating color can be removed and the crystallization of vat dyes on fabric would be enhanced, so the fastness is increased, the stable and full color is achieved.
The soap lotion which is compounded by nonionic and containing chelating agents plays a better role in color light promoting.
Business Transaction
1. About Samples
Arrange production---samples confirmation---counter sample---customer sample
Offer sample---sample conformation---arrange production
2. Samples Mailing
Free sample would be sent within one week once confirmed with customer
3. Sales Network
Our products have been exported to 52 countries in North America, South America, Europe, Middle East, Southeast Asia, Africa etc. We’ve established good and stable relationships with all our customers.
Contact Person: Allison
Tel: +8615861504187
