6408-72-6

Reddish-brown powder. Soluble in ethanol, colorless in concentrated sulfuric acid, and yellow-red upon dilution. Maximum absorption wavelength (λ_max) 545nm.

Disperse Violet 26 is suitable for coloring and dyeing polyester and its blends, various fabrics, plastics, and polyester fibers. High-temperature, high-pressure dyeing of polyester can produce light to medium shades. It can be used in a co-bath heat-fusion padding process with vat dyes to dye mixed-color polyester-cotton fabrics. When sized with Reactive Violet K-3R, it can be used for direct printing on polyester-cotton fabrics. For bleached polyester-cotton fabrics, padding with Disperse Violet H-FRL and fluorescent whitening agent DT in a co-bath can improve whiteness. It can also be used to dye triacetate fibers, but is not suitable for dyeing diacetate fibers, nylon, and acrylic fibers.

Disperse Violet 26 is a commercial dye, and the attachment of azo groups (N=N) a) is a very important feature of disperse dyes. Disperse Violet 26 is a fluorescent probe used as a commercially available fluorescent dye for the detection of ClO^- . ClO- is one of the important biologically active oxygen species (ROS)[1].

Notclassified

1,4-Diamino-2,3-diphenoxyanthraquinone is prepared from the 2,3-dichloro compound and phenol by chlorine replacement .

red light purple. brown-red powder, soluble in alcohol. The strong sulfuric acid in colorless, diluted red for yellow light. In dyeing calcium and magnesium ions not sensitive, encounter iron ion colored light slightly influence, copper ions in big effect. Dye bath appropriate pH value for 3 to 8, in dyeing and printing not alkali resistance. The dyes red light for purple, suitable for polyester/cotton blended fabric dyeing, and have a good color fastness to dry. Suitable for high temperature high pressure and hot melt dyeing method, hot melt temperature of 210 ~ 220 ℃. In three vinegar on fiber dyeing, colored light and polyester similar, is not suitable for dyeing two vinegar fiber, polyamide fiber and acrylic. But in polyester fabric weaving direct printing, cannot be printing the impression of the discharge. And Disperse Violet 26?and the same chemical structure.

Standard	Ironing Fastness		Light Fastness	Persperation Fastness		Washing Fastness
	Fading	Stain		Fading	Stain	Fading	Stain
ISO	4	3	6	5	5	4-5	4-5

Disperse dyes are recalcitrant in nature and nonbiodegradable, and therefore persistent dyes. At present, wastewater treatment containing dispersed dyes is very challenging, and oxidation is the most well-known and commonly used treatment method for destroying the dye structure. UV-H₂O₂-based systems are often used to improve dye degradation[2].

[1] Li J, et al. A selective colorimetric and fluorescent probe for the detection of ClO? and its application in bioimaging. RSC Advances, 2014; 4: 44610-44613.
[2] Jamil A, et al. Photocatalytic degradation of disperse dye Violet-26 using TiO2 and ZnO nanomaterials and process variable optimization. Journal of Materials Research and Technology, 2019; 9: 1119-1128.