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Direct Blue 297

TRADE NAME:
Direct blend navy blue D-R
Direct Navy Blue D-R
Direct Navy Blue R
direct fast dark blue D-R

CAS NO: 2602-46-2

CI.NO: direct blue 297

Molecular Formula: C54H30N10Na8O28S8
Molecular Weight: 1707.3
Shade: red light navy blue.
COLOR TEMPLATE

Direct Blue 297 Physical and Chemical properties

Density 1.60
Dyeing Depth % 2
Light Fastness -
Washing Fatness 2-3
Rubbing Fastness(dry) 4
Rubbing Fastness(wet) 1-2

Colour Fastness Test

sun exposure

soaping

flooding

perspiration

rubbing

ironing

acid and alkali resistant

standard depth

1/12

depth

original color change

whita fiber stained

original color change

white fiber stained

original color change

white fiber stained

dry

wet

 

sulfuric acid

acetic acid

soda ash

3~4

4~5

4

4~5

4~5

4~5

2~3

Direct Blue 297 Appearance is a blue-black uniform powder that is soluble in water.

 

Direct Blue 297 Application:

Used for cellulose fiber dyeing and printing of, also suitable for polyester/cotton, polyester/stick blended a bath dyeing of step.

Use condition:

Direct Blue 297 Used in the one-bath one-step dyeing process of polyester-cotton, polyester-bonded or cotton-nitrile blended fabrics. The dyeing of cotton and viscose fibers can be dyed in the same bath as the disperse dyes or as a direct dye. It has high directness to cellulose fiber and high dyeing rate, that is, it also has a high dye uptake rate when a small amount of inorganic salt is used. The dye solution has good stability and does not agglomerate in the dye bath at 130 ° C. The pH value of the dye bath It has a wide adaptability range and has a good dye uptake rate for cellulose fibers under acidic conditions.

Packing:

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

Direct Blue 297 Material Safety Data Sheet (MSDS)

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