Bromo Indigo Liquid C. I. Vat Dyes 73065 Vat Blue 5 4b Liquid 36%

• CAS No.: 2475-33-4
• Formula: C42h18n2o6
• EINECS: 250-961-7
• Colour: Blue
• Appearance: Granular Powder
• Usage: Textile
• Model NO.: Bromo indigo
• Application Material: Cotton Yarn, Fabrics etc.
• Name: Vat Blue Clf
• Content: 100%
• C.I.No.: Vat Blue 66
• C.I: Blue 5
• Water Content: Max 1%
• Iron Content: Max 300ppm
• Product Name: Bromo Indigo Liquid 36%
• Transport Package: 25kg Carton Box or Iron Drum
• Specification: min 99%
• Trademark: ZHANJIU
• Origin: China
• HS Code: 3204159000
• Production Capacity: 5000mt/Year

Product Description

 
Product Name:Bromo-Indigo blue liquid 4B 36%;Bromo-Indigo blue liquid 36%
Molecular Formula:C16H6Br4N2O2
CAS: 2475-31-2

 

Specification:

Items	Specification
Appearance	Indigo liquid, Dark blue
Shade	Similar as the standard sample
Content	36%
Moisture	max 1%
Fe	Max 300ppm

 
Dyeing process of indigo liquid:

1. Liquid dye reduction→padding dye solution(leuco body be adsorption by cotton fabric and cotton yarn) → oxidation(padding dye solution-oxidation should repeat 4-7 times) →washing→soaping→dry.
2. Dye strength of single vatting not over 80g/L(indigo liquid).
3. The restore tempearature of indigo blue liquid at 60ºC+/-5ºC, the reduction time is Half an hour.
4. Vat solution preparation: Indigo liquid 70g/L, caustic soda(solid) 2.8g/l, sodium hydrosulfite 3.5g/l
 
Ratio:
Indigo liquid: solid caustic soda: sodium hydrosulfite
         1         :             0.4            :           0.5
Due to the heat release during the dissolution of the solid caustic soda, so during prepare the vat solution, do not need to be heated.
5. Dyeing temperature: best during 20-35ºC
6. Dyeing depth: according to the order sample to be adjusted
7. Indigo blue liquid is fit for dyeing cotton yarn and cotton fabric both, dyeing yarn use continuous dyeing process, after the yarn be dyed, then knit denim fabric. Washing last.
8. In order to increase the brighter of the denim fabric, in domestic marker, a lot of factory add small quantities of bromine indigo liquid into the indigo liquid, and be reduced and dyeing together.
 
We also have good cooperations with Chinese and Indian factories for Vat dyes, Disperse dyes, Sulphur dyes and Indigo powder etc. If you have demand for any type of dyes, let us help you to find the right quality product. Please feel free to send us email: [email protected]. Thanks!

ZHANJIU (SHANGHAl) INDUSTRIAL CO., LTD is a professional supplier of fine chemicals for manyindustry fields, specializing for chemicals widely used in textile printing & dyeing, leather processing.water treatment, food & feed additives, pharmaceuticals and other areas.We have own cooperatedfactories for sodium percarbonate, sodium hydrosulfite, surfactant, sulphur dyes and textile auxiliaries
etc.Our cooperated factory for sodium hydrosulfite has capacity of 100,000 metric tons per year, wealso produce sodium metabisulfite and sodium formate etc.Our factory has internationally advanced production equipment and production technology.comprehensively utilizes the by-products in the production process, and fully advocates circulareconomy and cleaner production.
Our manufacture base for Sulphur dyes is located in East China and founded in 2003. The mainproducts are solid and liquid sulphur dyes, sodium thiosulfate, sodium sulfide, etc. Our capacity forsulphur dyes is 30000 tons of solid and 30000 tons of liquid every year.Our cooperated factory for sodium percarbonate has capacity of 100,000 metric tons per year andwe already exported more than 50 countries. The main application of sodium percarbonate is indetergent and aquaculture industries. For aquaculture, we can supply granular uncoated type andtablet type. It is Class 5.1 dangerous chemicals and we have very good professional experiences forexporting this product.

FAQ

1) Do you accept small orders ?

     Yes, we can do it. Pls contact us for order details.
2) How about the price? Can you make it cheaper ?
    Price is negotiable under different conditions, we are assuring you to get the most competitive price.
3) Do you offer free samples ?
    Yes, we could offer the sample for free charge but do not pay the cost of freight.
4) What are your payment terms ?
     We usually accept T/T, L/C or other terms for negotiating.
5) Can I visit your factory in China ?
     Yes, you are welcomed to visit our factory.
6) How Can I place an order ?
    Kindly pls chat with us directly, or you could just send us inquiry, we will arrange your order accordingly after all details is  finalized.