Paper Dyes, Kraft Paper Dyes, Card Paper Dyes manufacturer / supplier in China, offering Paper Dyes for Kraft Paper Card Paper Carton Paper, Solvent Yellow 93 Transparent Yellow 3G for Plastic and Printing, Solvent Blue 35 Transparent Blue Hnr for Plastic and Oil and so on.
Min. Order / Reference FOB Price | |
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1 Box | Contact Supplier |
Local Area: | Nanyang, Henan, China |
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R&D Capacity: | OEM, ODM, Other |
Payment Terms: | LC, T/T, D/P, PayPal, WesternUnion |
CAS No.: | Vat Green 1 |
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Colour: | Black |
Appearance: | Powder |
Factory Supply Lowest Price VAT Indigo Blue Dyes 94%min
Another name:reducing indigo
Index no. of dyes:C. I. Reducing blue 1 (73000)
Corresponding foreign trade name:INDIGO (Acna, Fran, ICI)
Molecular formula:C16H10N2O2
Molecular weight:262.27
EINECS:207-586-9
Chemical name:3,3 - dioxbisindophenol
Property and usage:
The granular indigo is processed by spray drying the slurry of acid washing indigo with additive, it has advantages of:
1.Free of dust or little flying dust. The granules have certain mechanical strength, and don't create dust easily, so it can improve the working environment and sanitary condition;
2.Good flowability, which is benefiCar Electronics cial to the automatic measuring and operation;
3.Good wettability and dispersibility, don't agglomerate or aggregate in use, and is convenient for preparing dye liquor.
4.Good storage stability, and don't absorb moisture easily, and has not electrostatic adsorption phenomenon.
It can also ensure the homogenic color and brilliant color light in printing and dyeing.
Indigo Specification:
Products name
Indigo(C.I Vat Blue 1#)
constitutional formula
molecular formula
C16H10N2O2
molecular weight
262
nature
This product is dark-blue uniform powdery or granular. It cannot be dissolved in water and common organic solvents such as ethanol and aether, but can be dissolved in hot aniline and melt phthalic anhydride. Its melting point in the closed capillary is 390-392°C, and it begins sublimating slowly at 290°C. It has very good sunburn endurance and application performance.
test condition
HG/T 2750-1996
appearance
dark-blue uniform powder or granule
(1)original powder
content
%≥94.0
particbe size(60mesh)
%≥96.0
moisture
%≤1.0
Fe3+
<200PPM
(2)pelleting
content
%≥94.0
moisture
%≤1.0
Fe3+
<200PPM
(3)Promoter
content
%≥93.0
moisture
%≤0.8
Fe3+
<200PPM
use
Reducing indigo to be dyestuff, which can be mainly used in dyeing cotton fDrying Machine abric, and otherwise can be made to 5.5'-7.7'- tetrabromo indigo, and then be used in biochemical and indicators, etc.
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