THE INDIGO GRAIN
Another name：VAT INDIGO Dye index number：C.I Vat blue 1 ( 73000 ） International corresponding trade names：INDIGO（Acna、Fran、ICI、VAT BLUE） Molecular formula：C16H10O2N2 Formula weight：262.27 Chemical name：3,3-Dioxy bisindol
THE INDIGO GRAIN
Another name：VAT INDIGO
Dye index number：C.I Vat blue 1 ( 73000 ）
International corresponding trade names：INDIGO（Acna、Fran、ICI、VAT BLUE）
Molecular formula：C16H10O2N2
Formula weight：262.27
Chemical name：3,3-Dioxy bisindol
PERFORMANCE AND USE：
Granular indigo is made from pickling indigo with additives,pulping and spray drying,It has peculiarity as below
1、No dust or low dust flying, particles have a certain mechanical strength, Using is not easy to dust, that improved the working environment and sanitary conditions；
2、It has excellent fluidity,that is beneficial to automatic measurement and automatic operation；
3、It has good wettability and dispersibility, It is not easy to carry over and focus in use. It is convenient to prepare dye；
4、Good storage stability,It is not easy to absorb moisture, no electrostatic adsorption phenomenon；
5、At the same time in the printing and dyeing industry it to ensure uniform cloth color, color light is more bright.
MAIN QUALITY INDEX：
Appearance Dark blue granular
Coloured light Approximate to standard
Content ≥ 93.0%、94.0%
Moisture ≤ 1.0%
Strength 100% of standard
PH Value 8－9
Iron ion ≤ 300PPM