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Liquid Vat Indigo Blue Dyes

Liquid Vat Indigo Bllue dyes made from Indigo Blue powder or grains,the indigo blue powder content is 30%.
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Product Introduction

Liquid Vat Indigo Blue Dyes Product info:

Product Name:

Vat Liquid Indigo Blue Dyes

Appearance:

Blue Liquid

CAS No.:

482-89-3

EINECS NO.:

207-586-9

Formula :

C16H10N2O2

Molecular Weight:

262.2628

C.I.NO.:

1

Moisture(%):

70.0%

Indigo content:

30.0%

Chemical Structure:

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Package:

IBC, 1 IBC=12300KGS,

1*20 ft container=221400KGS

Properties:

Liquid indigo Blue dyes is a modern indigo production technology, the use of liquid indigo can help the factory clean production, and at the same time reduce the use of sodium disulfite, which is safety powder by 60% ~ 70%.

It has excellent light fastness, weather fastness and heat stability.

Main Application:

Dyeing Jeans fabric.


Preparation method

(1) Preparation of indigo. Edible indigo is actually disodium indigo disulfonate. The indigo is sulfonated with concentrated sulfuric acid, diluted with water after sulfonation, neutralized with soda ash, and finally salted out by adding sodium chloride, filtered, washed with water, and dried to obtain the finished product. The consumption of indigo powder (100%) per ton of product is 210kg.(2) Preparation of indigo aluminum lake. Aluminum hydroxide is prepared from aluminum salts such as aluminum chloride and aluminum sulfate and alkalis such as sodium carbonate, and then added to the aqueous solution of citron indigo and precipitated to obtain the product.


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FAQ

1.Are you trader or factory?   We are factory.2.Are samples provided and are they free?   Yes, we can provide samples for free, and each sample is 20g.3.What payment options are available?   We have payment methods of L/C, Western Union, D/P, D/A, T/T, MoneyGram, you can choose any one.


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