The most popular Direct Red 4BE for dyeing cotton
Product Specification
| Name | Direct Red 4BE |
| Other Name | Direct Red 28 |
| Cas No. | 573-58-0 |
| Appearance | Reddish Brown Powder |
| Packing | 25kgs Kraft bag/carton box/Iron drum |
| Strength | 100% |
| Application | Used for dyeing cotton,paper,leather,silk and wool so on.
|
Description
Direct Red 4BE is a Reddish Brown powder.Soluble in water yellow light red, sensitive to hard water. Orange soluble in alcohol, very slightly soluble in acetone.Good dyeing rate, dyeing time slowly heating up and adding salt to control dyeing, can get uniform color. After dyeing, the dyeing solution should be cooled to 80℃ naturally, which is conducive to the absorption of dyeing material. Dyeing bath should be slightly alkaline to maintain bright color. We can adjust the Tones and Quality according to the customer’s requirements.
Product character
It has good dye shifting and evenness,In concentrated sulfuric acid is blue, thin release after light blue, blue precipitation; Precipitates olive brown to blue-gray in concentrated nitric acid. Its aqueous solution with concentrated hydrochloric acid has red blue precipitation, concentrated sodium hydroxide turned slightly yellow light, yellow light red in concentrated ammonia water. Because it is very sensitive to acid, dyed fabrics exposed to air for a long time or stored for a long time can also absorb carbonate gas from the air and make the color turn blue and dark, and can be treated with dilute soda solution to restore the original color.
Main features
A. Strength：100%
B. Reddish Brown powder，Good solubility in water
C. Excellent dyeing fastness and brighter shade.
D.Good deep dyeing quality, suitable for dyeing of super fine fiber. Have perfect compatibility and larger scope choice of different colors.
E. It is widely used in dyeing cotton and viscose fibers. Dyed fabrics can absorb carbonate gas from the air and turn blue and dark when exposed to air for a long time or stored for a long time, and can be treated with dilute soda solution to restore their original color.
F. It has good dye shifting and evenness, high dyeing rate, After dyeing, the dyeing solution should be cooled to 80℃ naturally, which is conducive to the absorption of dyeing material. Dyeing bath should be slightly alkaline to maintain bright color.
Application
It is mostly used for dyeing cotton，It can also be used for dyeing paper, silk and wool so on.
Packing
25kgs Kraft bag/carton box/Iron drum25kgs carton box
Storage & Transportation
The product must be stored in shade, dry & well-ventilated warehouse. Avoid to be contacted with oxidizing chemicals and combustible organic substances. Keep it away from direct sunlight, heat, sparks and open flames. Carefully handle the product and avoid damaging the package.
