Chemical Properties
dark yellow to brown fine powder
Uses
C.I. Acid yellow 99 is an acidic yellow dye that combines with coconut shell pith through electrostatic and complexing reactions.
Preparation
3-Amino-2-hydroxy-5-nitrobenzenesulfonic acid diazo, and 3-Oxo-N-phenylbutanamide coupling, and then into a chrome complex.
Properties and Applications
red light yellow. Yellow powder. Soluble in strong sulfuric acid is brown, it will be diluted light brown for solution. Used for wool, silk, polyamide fiber dyeing and printing directly, also can used for leather dyeing, especially for the wool carpet and influential dyeing, can also be used for the preparation of solvent dye.
|
Standard
|
Light Fastness
|
Soaping
|
Persperation Fastness
|
Oxygen bleaching
|
Fastness to seawater
|
|
Fading
|
Stain
|
Fading
|
Stain
|
Fading
|
Stain
|
|
ISO
|
4-5
|
4
|
5
|
4-5
|
4
|
|
4
|
|
|
AATCC
|
4
|
3
|
5
|
4
|
3
|
|
4-5
|
|
References
[1] Khan M M R, et al. Mechanistic studies on the binding of Acid Yellow 99 on coir pith[J]. Bioresource technology, 2011, 102(3): 2394-2399.
