Direct Black Dyes

About Direct Black Dyes

Direct Black Dyes is a high purity industrial-grade powder with excellent rubbing resistance in dry conditions. This acid-resistant powder is designed to withstand tough industrial environments and is ideal for use in various applications. With nil moisture content, this powder is available in a convenient dry form, making it easy to handle and store.

Properties and Applications: black. Palm black powder. Soluble in water for green light black, solubility 40 g/l (85 „), and adequate soluble in alcohol for green light blue-black, right amount soluble in soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid is a deep red in blue, diluted Purple dark reddish brown for to red light black precipitation; In nitric acid solution for yellow brown (not completely); In strong hydrochloric acid for dark red light black solution (don™t). The dye solution to join strong hydrochloric acid for Purple dark reddish brown, precipitation; Concentrated sodium hydroxide solution is generated gray light blue precipitaten. Cellulose fiber of dyeing, the dye absorption rate as well, in 80 „ temperature when the biggest affinity. Can discharge. Used for cotton, viscose, silk, polyamide fiber and its blending fabric, leather, wood, biological and plastic color, also used as the raw material of black ink.

FAQs of Direct Black Dyes:

Q: What is the rubbing resistance of Direct Black Dyes?

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Q: What is the purity of Direct Black Dyes?

Q: What grade is Direct Black Dyes?

Q: What is the resistance of Direct Black Dyes?