The most popular Direct Red 12B for dyeing cotton
Product Specification
| Name | Direct Red 12B |
| Other Name | Direct Red 31 |
| Cas No. | 5001-72-9 |
| 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 12B is a Reddish Brown powder.Soluble in water is magenta color, slightly soluble in alcohol is red orange, soluble in lysofibrin, insoluble in other organic solvents.After dyeing, the dyeing solution should be cooled to 40 ~ 60℃ naturally, which is conducive to dye absorption.Urea should be added when mixing the color paste, especially when printing deep thick pattern.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, orange to red brown color, after dilution dark blue red precipitate; Brown and precipitated in concentrated nitric acid. Adding concentrated sodium hydroxide to its aqueous solution turned orange brown, adding concentrated hydrochloric acid precipitated jujube red, in concentrated ammonia water was jujube red.As one of the main direct red dyes, it is widely used in dyeing and printing of cotton and viscose fibers. In addition, in cotton knitting, cashmere blanket, flannelette and nylon and viscose fiber blended fabrics also have a small number of applications.
Main features
A. Strength：100%
B. Reddish Brown powder，Good solubility in water
C.Good deep dyeing quality, suitable for dyeing of super fine fiber. Have perfect compatibility and larger scope choice of different colors.
D. Providing for bright shades, these have storing adherence to fabric molecules without support from other chemicals. High thermal stability; Good light fastness and weather fastness;Bright colors and high color strength; High brightness and tinting-strength.
E. It has good dye shifting and evenness, high dyeing rate, After dyeing, the dyeing solution should be cooled to 40 ~ 60℃ naturally, which is conducive to dye absorption.
Application
It is mostly used for dyeing cotton，It can also be used for dyeing paper, silk and wool so on.
Packing
25KGS PP Bag/Kraft Bag/Carton Box/Iron Drum
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.
