Vat Orange 11

Yellow powder. Slightly soluble in 2-Chlorophenol and Pyridine , insoluble in Etanol, Acetone, Chloroform and Toluene. The strong sulfuric acid to red light brown, dilute light yellow brown after precipitation. Alkaline reduction for dark red light body hidden color brown; Acid reduction for yellow color body hidden. The light is fragile.

Vat Orange 11(Vat Yellow 3RT) appearance is generally yellow powder. It is insoluble in water, alcohol, acetone, chloroform and toluene; slightly soluble in o-chlorophenol and pyridine. It is reddish brown in concentrated sulfuric acid and has a brownish yellow precipitate after dilution. The dye is in alkaline powder solution. The resulting leuco body is dark reddish brown, and the acid powder solution is dark yellow.

Mainly used for dyeing cotton roll and dip, the affinity of cotton cloth is good and the levelness of death and the covering power of cotton are good. Can to cotton direct printing. with Villeneuve shade of Pale, coloured silk high affinity, good fastness. Besides using background color outside, a small amount used to spell color. Sometimes also used for paper dyeing.

Vat Orange 11 Use condition:

1.When used for cotton product dyeing or dip dyeing, it is suitable to use B method, and can also use method A and method C. Dry cylinder reduction temperature is 50 °C, it takes 10~15min, dry cylinder stabilization time is 50min. When dyeing, it is necessary to add salt to promote dyeing.

2.The leuco body has higher affinity for cotton fiber and good leveling property. The dyeing curve is shown in Figure 4-5-13. It has good hiding power for dead cotton. In addition to suitable for dyeing and dip dyeing, Suitable for suspension padding and so on.

3. It is suitable for direct printing of cotton fabrics. When adjusting the printing paste, it is necessary to add 50g/L of cosolvent TD to fully color the color. The color of the printing is generally not as bright as the dyed color.

4. When the Vat yellow 3RT dyed vinylon is reduced, the color is not as bright as the dyed cotton, and the color is light.

5. Vat Orange 11 After printing and dyeing the fabric, the color change is minimal.

Precautions

Vat Orange 11 should be stored in a dry, ventilated place to avoid moisture