Product Name: Indigo /Indigo Blue
Colour Index: C.I. Vat Blue 1
Cas No. 482-89-3
Composion: Phenylethane acid potassium salt reacts to amino sodium through alkali fusion, and then oxidized.
Appearance: Dark blue even Granular and Powder
Strength:94%
Shade: To the similar standard of the factory
Moisture%:0.45 Max
Particle size(-60 mesh)%: 95
Fe3:200ppm Max
MOQ:1000KG
1.Discription:
Indigo naturalis extract is a concentrated mixture made by extracting (or ''pulling'') isatis indigotica’s chemical constituents out of the inert plant fiber (cellulose) with a solution of grain alcohol and water. Good indigo naturalis extract should optimally preserve the aroma, taste and biological activity of isatis indigotica from which it is made
2.Main Characteristic of Indigo:
• Storage stable liquid.
• High substantivity, good backwater ratings.
• Excellent fastness properties.
• Suitable for continuous dye dosing.
3.Specification of Indigo :
|
Appearance |
Homogenic dark blue powder |
|
Colour light |
Similar as the standard sample |
|
Content |
≥ 92.0%,93.0% |
|
Moisture content |
≤ 1.0% |
|
Strength |
Equal to 100 percent of the standard sample |
|
PH value |
9.5-10.5 |
|
Content of ferric ions |
≤ 200PPM |
|
Wetting power |
≤ 10second |
4.Package & Storage of Indigo:
25KG bag , 10.5MT/20'FCL . 20kg carton, 9MT/20'FCL.also be packed according to customer's needs.
Store closed containers in a cool, dry, well-ventilated area. Avoid exposure to direct sunlight.
5.Applications of Indigo:
1. Indigo is mainly used in dyeing and dyeing viscose pulp.Used for the dyeing of biochemical agents and indicators as well as cotton, cotton, wool or silk, etc.
2. Indigo also used as food coloring agents,
Quality Certificate
ISO9001:2008 -Quality Management System; SGS certification; FDA certification
