Reductive blue RSN (reduction blue 4) 100%

Reductive blue RSN (reduction blue 4) 100% product introduction

The main domestic manufacturers: jiangsu yabang dyestuff Co., LTD, anhui yabang chemical Co., LTD. Is currently the world production is the largest

Source: preparation or by 2 - amino anthraquinone but dissolves in caustic soda and a mixture of KeXingJia presence in sodium nitrate, then use the insurance of melting, then after refine powder, filtration, drying, oxidation of finished products. And commercialization

Using this product production products: reduction deep blue VB

Reductive blue RSN (reduction blue 4) : 100%

Advantages of product: reduction C.I.V atBlue4 RSN (blue)
[a] chemical category: blue anthracene ketone anthraquinone dye

[2] structured: (69800) children

[3] chemical properties:
Reductive blue RSN appearance is commonly colourful blue powder. Insoluble in water, acetic acid, acetone, alcohol, than organism, and toluene, slightly soluble in hot chloroform, o-chlorophenol, KuiLin. The strong sulfuric acid are brown, diluted into blue precipitation. Dye of hidden color after the alkaline reduction in blue, acidic state body for the red light blue. Reductive blue RSN easy excessive oxidation and reduction of excessive, hard water less sensitive, no resistance to chlorine-and. Colour and lustre LanYan resistant, insolation and climate fastness is admirable.

[4] USES:
1, cotton fiber dyeing: reduction for knot dyeing or blue RSN inoculated, applicable armour method, and with all the bath dyeing reduction (also called reduction) primarily, dying VAT of hidden color body because dye solubility lower. Compounds Reduction temperature control in 55? 60 ℃, with no more than 60 ℃ advisable, time for 10 minutes, or most likely to produce crystallization and not reduction, also may be excessive, cause color bleak reduction. General levelness, good affinity, the dyeing curve as shown in figure 9-7-32. Because the dyeing speed is high, therefore, especially dyeing dyed light color more need to pay attention to when, in case the produce dyeing not divide evenly and chromatism. To dead cotton covering power is poorer. Dyes are more sensitive to hard, appropriate USES water softener or through the water by after-chroming softening prepared. Dyeing, insurance powder consumption too much, can produce excessive reduction, cause dyeing cloth, serious collapsing when dark lubricious shallow, the insurance amount must strictly control. Powder After dyeing is unfavorable take alkali oxidation and prevent dark and light green. The cold water first commonly air oxygen or hydrogen peroxide oxidation solute in soap, or boil with boric acid sodium, when hair color, make full of soda. Dyeing cloth easily excessive sodium hypochlorite drift in liquid, often makes the colored light green oxidation and dark, usable insurance powder processing reply into bright blue. In dyeing production in every because excessive oxidation to color is not normal, usable also insurance powder processing, the dosage is generally in 1 gram? M liters. Due to the reduction of blue RSN resistance to chlorine-and and mercerizing fastness is poorer, yarn dyed dyed yarn by certain restrictions. The blue RSN production with reduction 190 # lanbu most in suspension body knot dyeing, knot dyeing engineering low yield, quality is not easy to control.
2, cotton cloth printing: reduction blue RSN used directly printing, printing of grouting needing urea and dissolve the salt B and not add anthraquinone, with carved reductant white powder. Antioxidants with boric acid sodium had also advisable. Can prevent dye, but does not make the discharge printing.
3, other fiber application: RSN low temperature reduction blue dye viscose fiber color shallow, improve when, the dyeing temperature dyeing cotton slightly darker than light. Polyester-cotton blended fabric dyeing at 60 ℃, viscose fiber group for deep color more cotton share. WeiGuan fabric dyed with fine powder or dimensions cotton blended fabric, can better effect, but even dye with dark colored light slant red. Separate WeiGuan than cotton dyeing pure red.
4, resin finishing with variable condition: RSN dyeing fabrics reduction blue by urine aldehyde, cyanogen aldehydes, DMEU or 2D colophony to tidy up after color change very little. Such as the BHES resin finishing, then colored light green and dark.