The Direct Brown MR ( DI. Brown 2 ) is a high-purity industrial-grade powder known for its excellent rubbing resistance in dry conditions. It is specifically designed to withstand acid resistance, making it ideal for a wide range of industrial applications. With a moisture content of nil, this powder ensures high quality and durability in various environments. Its physical form allows for easy application and handling, making it a convenient choice for industrial use.
Properties and Applications: red light brown. Brown powder. Soluble in water solution is a deep red light brown, soluble in ethanol is palm red light, soluble in soluble fiber element for red light brown, slightly soluble in acetone, insoluble in other organic solvents. The strong sulfuric acid for purple, diluted red light brown, precipitation; In nitric acid for orange brown. The dye solution to join strong hydrochloric acid for dark brown; Add thick sodium hydroxide solution for orange brown. Cellulose fiber of dyeing, dye devoured rate is good, the temperature of 60 to 80 in the biggest affinity, discharge of dyeing with copper sulfate after treatment, it can improve the color fastness. Mainly used for cotton, such as glue of cellulose fiber dyeing and printing directly, can also be used for the pulp, leather dyeing and manufacturing color pigment sediment.
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
ISO | 3 | 4-5 | 3 | 2 |
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2 |
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AATCC | 3 | 5 | 3 | 3 |
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3 |
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