Direct Dyes

Application and parameters of direct dye products

Home > Direct dyes > Direct dye brown

Direct Brown 1

TRADE NAME:
Direct yellow brown D3G
Bismark Brown G
Direct Brown D3GE
Direct Brown MD

CAS NO: 3811-71-0

CI.NO: 30045

Molecular Formula: C31H22N8Na2O6S
Molecular Weight: 680.60
Shade: Yellowish Brown.
COLOR TEMPLATE

Direct Brown 1 Physical and Chemical properties

Dyeing depth %

2

Insolubles %

0.15

Washing Fatness

2-3

Light Fastness

2

Rubbing fastness(wet)

3

Rubbing fastness(dry)

4

 

Solubility(g/L)

SDC classification

Displacement(grade)

metal ion effect(grade)

discharge property(grade)

other features

     

copper

iron

neutral

basic

 

C

3~4

1

1~2

5

4

 

Color fastness (grade)

sun exposure

soaping

flooding

perspiration

rubbing

ironing

acid and alkali resistant

standrd depth

1/12

depth

original color change

white fiber stained

original color change

white fiber stained

original color change

white fiber stained

dry

wet

 

sulfuric acid

acetic acid

soda ash

3

2

3~4

4

3~4

4

4

2

4~5

2~3

2

2~3

Soluble in water for orange brown, soluble in ethanol, slightly soluble in acetone and soluble fiber element, insoluble in other organic solvents. In nitric acid partly dissolved for red light brown, to orange brown; The strong sulfuric acid in the dark for the light purple to violet black, diluted into a brown. The dye solution to join 10% sodium hydroxide solution for yellow brown. Cellulose fiber of dyeing, dye well after sex is good, temperature in 100 ℃, affinity is the largest. Discharge of more sensitive to that fights.

Copper ions in dyeing and dark colored light yellow, meet iron ion to yellow. 

Direct Brown 1 alias direct gold camel D3G, direct gold camel, direct yellow brown D3GE. Appearance is generally brown uniform powder. Water soluble, slightly sensitive to hard water. Dissolved in water orange brown, soluble in alcohol, slightly soluble in acetone And cellosolve, insoluble in other organic solvents. Dark red purple to purple black in concentrated sulfuric acid, brown after dilution; partially dissolved in concentrated nitric acid, reddish brown to orange brown. Yellow-brown. In case of copper ions, the color is yellow and dark, and the iron ions turn yellow.

Direct Brown 1 Application:

Mainly used for cotton, such as glue of cellulose fiber dyeing, also can be used for silk, polyamide fiber, Sticky/brocade fabric dyeing, can also be used for the pulp and leather color.

Use condition:

1. It used to dye cotton or viscose fiber to get yellowish brown. Poor transferability, slow temperature rise during dyeing and salt addition to control dyeing, can obtain uniform color. Good dyeing rate, highest dyeing The temperature is 100 °C.

2. It has also been used to dye silk and nylon. When cotton, viscose fiber and other fibers are dyed in the same bath, the silk can be similar to cotton and viscose fiber. The wool is slightly dark and the nylon can be dyed. The vinegar fiber is stained, and the polyester and acrylic fibers are light gray.

3. It is generally not used for direct printing. When used for ground color discharge, the dyeing performance is still good. After dyeing the silk fabric, it is whitened with stannous chloride reducing agent, and the whitening effect is good.

4. It was once one of the main brown direct dyes. It is widely used in the dyeing of viscose fabrics and yarns. It is also used in cotton knitwear and carpet, flannel, viscose and silk or nylon. Dyeing of blended fabrics

Precautions

Direct Brown 1 can be decomposed out of benzidine, which is a banned dye. The substitute dye is direct yellow brown N-D3G

Packing:

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

Direct Brown 1 Material Safety Data Sheet (MSDS)

Inquiry for Direct Brown 1
Question: *
You can learn about other products:
Direct brown 2
Direct Brown 95
Direct Brown 210
Direct Brown 227
Direct Black 17
Direct Green 1

Products Catalog

Solvent dyes
Solvent dye red
Solvent dye yellow
Solvent dye orange
Solvent dye green
Solvent dye blue
Solvent dye violet
Solvent dye black
Solvent dye brown
Basic dyes
Basic dye red
Basic dye yellow
Basic dye orange
Basic dye green
Basic dye blue
Basic dye violet
Basic dye black
Basic dye brown
Direct dyes
Direct dye red
Direct dye yellow
Direct dye orange
Direct dye blue
Direct dye green
Direct dye violet
Direct dye black
Direct dye brown
Acid dyes
Acid dye red
Acid dye yellow
Acid dye orange
Acid dye green
Acid dye violet
Acid dye blue
Acid dye black
Acid dye brown
Sulphur dyes
Sulphur dye red
Sulphur dye yellow
Sulphur dye green
Sulphur dye blue
Sulphur dye black
Sulphur dye brown
Vat dyes
Vat dye brown
Vat dye green
Vat dye red
Vat dye yellow
Vat dye orange
Vat dye blue
Vat dye violet
Vat dye black