Direct Blue 106(TDS)

Application and parameters of Direct Blue 106

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Direct Blue 106

Direct fast blue
Direct Brill Blue BL
Direct Brilliant Blue BL
Direct Fast Blue FF2GL
Direct Fast Sky Blue GD
Fast Blue BL
Intralite Brilliant Blue 2GLL
Permalite B rill Blue BL

CAS NO: 6527-70-4

CI.NO: 51300

Molecular Formula:C30H16Cl2N4Na2O8S2
Molecular Weight: 741.49
Shade: bright blue powder

Direct Blue 106 Physical and Chemical properties

ensity 1.31
Dyeing Depth % 2
Light Fastness 6-7
Washing Fatness 3-4
Rubbing Fastness(dry) 4-5
Rubbing Fastness(wet) 3

Application Features


SDC classification


metal ion effect(grade)

discharge property(grade)

other features














Colour Fastness Test

sun exposure






acid and alkali resistant

standard depth



original color change

white fiber stained

original color change

white fiber stained

original color change

white fiber stained




sulfuric acid

acetic acid

soda ash













Direct Blue 106 (Direct fast blue) alias direct light blue FF2GL. The appearance is generally gray-black powder. Water-soluble is good, soluble in water is blue. When copper and iron ion color light turns green and dark. Has good resistance to reduction, Will not be broken down by the insurance powder and carved white powder.

Direct Blue 106 Application:

Mainly used for cotton, viscose, silk, polyamide fiber fabric dyeing and printing, also can be used for leather dyeing.

Use condition:

1. Directly endurance bright blue dyed cotton or viscose fiber has bright blue color. Poor transferability, it is advisable to add salt to control the dyeing to obtain uniform color. It is advisable to add Canadian dollar powder instead of salt. The dyeing rate is poor, and the dyeing solution should be naturally cooled to 80 °C after dyeing, which is beneficial to the dye exhaustion.

2. Direct fast blue is used for dyeing rich fiber, the dyeing rate is lower than that of dyeing cotton, and the color is also dim. It is also used for dyeing silk fabric, dyeing bath plus Yuanming powder and acetic acid; and for cotton and viscose fiber. Dyeing with silk silk fabric. When dyeing vinyl fabric, the dyeing rate is poor, and the color light is bluer than the viscose fiber. When cotton, viscose fiber and other fibers are dyed in the same bath, the silk color is similar to cotton and viscose fiber; wool The color depth is also similar, the color light is slightly reddish; the nylon dyed, polyester, acrylic, and diacetate fibers are slightly stained, and the three vinegar fibers are not stained.

3. Direct fast blue can be mixed with disperse dyes in high temperature dyeing and blending fabrics, and the color shade is basically unchanged. The dyeing bath is adjusted with ammonium sulfate to adjust the pH value, and the temperature is raised to 130 ° C under neutral conditions, or the body is boiled. After the dye is dyed with the disperse dye, the dye is continuously dyed for half an hour, so that the cellulose fiber is fully colored, and the dye is exhausted.

4. Direct fast blue can be used for direct printing of cotton or viscose fabric, and can also be used for other color printing.

5. Direct fast blue is mainly used for the dyeing of viscose fabrics, and also for the dyeing of cotton knitted fabrics. The strength of this product is low, the dyeing rate is poor, generally it is not suitable for dyeing dark colors, usually used in 3%~4 Between %(owf). The dyeing substance has obvious migration phenomenon in the wet state, and it is necessary to carry out post-processing in time to avoid causing various rickets.


20 or 25kg/compound bag, carton box, iron drum, fiber durm for powder dye and 1000kg/tank for liquid dye

Direct Blue 106 Material Safety Data Sheet (MSDS)

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