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Reactive Blue 21 Dyes

Product Name:Reactive Blue KN-G;CAS No.:12236-86-1/73049-92-0;Formula :C16H10N2O2;C.I.NO.:21;Specification:266%;OWF(%):2
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Product Introduction

Reactive Turq.Blue G Reactive Blue 21 Dyes as below :


Product Info
Product NameReactive Blue KN-G
CAS No.:12236-86-1/73049-92-0
Formula :C16H10N2O2
Molecular Weight:N/A
C.I.NO.:21
Specification:266%
OWF(%):2


Chemical Structure

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ApplicationColourful green light blue. Blue powder. The strong sulfuric acid in blue, diluted for blue still; In nitric acid for green, diluted into a green light. Water solution is blue lake, add 1 Moore sodium hydroxide solution is still lake blue; Continue to join insurance powder and warm, into purple; Add a boric acid sodium return to a lake blue, colour and lustre is a little shallow. Used for cotton, linen, silk, polyamide fiber of knot dyeing and roll dye, also can be used in viscose fabric printing.


Characteristic△ Application range: used for cotton, viscose and other fiber dyeing△ Type: vinyl sulfone (VS)△ Recommended dyeing temperature: 80 ℃△ Turquoise blue. Suitable for the combination of Turquoise blue and green. Suitable for exhaust dyeing and pad dyeing. Using turquoise leveling agent while exhaust dyeing to prevent spots.


Polyester fabrics are dyed with disperse dyes, especially for medium and dark colors, and hydrosulfite is usually used for reduction cleaning, which can fully remove floating colors and oligomers remaining on the surface of the fabric, and improve the color fastness. However, hydrosulfite is not safe. It is powdery, flammable, explosive, and easy to decompose. It is easy to release sulfur dioxide gas to pollute the environment, and will increase the BOD value of sewage, thus increasing the difficulty of sewage treatment.


Acid reducing cleaning agent: acid reducing cleaning agent 2 g/L, pH=4~5, bath ratio 1:50, 90~95 ℃, 20 min, take out the fabric after cleaning, wash in cold water, and dry.

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vn88 vn88linkvn88Liên kết đăng nhậpFAQ:

△ Do you provide samples, is it free? 

--We can provide free samples.

△ What payment methods are supported? 

--L/C   Western Union   D/P   D/A   T/T   MoneyGram

△ Where is your factory? 

--Jiangsu, China 


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