ACID DYES

1. ACID DYES	COMMERCIAL NAME	C.I. NO.
a) ACID YELLOW 36	METANIL YELLOW	13065
b) ACID ORANGE 7	ACID ORANGE - II	15510
c) ACID BLACK 1	ACID BLACK 10BX	20470
d) ACID BLACK 2	NIGROSINE WATER SOLUBLE	50420
e) ACID BLACK 210	ACID BLACK 210	-
f) ACID BLACK 234	ACID BLACK 234	-
g) LEATHER BLACK	LEATHER BLACK	-

Acid Yellow 36

 

Synonyms – Metanil Yellow

Colour Index – (C.I. No.) – 13065

CAS No. – 587-98-4

Application – Used for coloring paper, wool, leather, boiled and milled soaps.Wood stains, shoe polish, spirit lacquers and bloom sheep dips.

Acid Orange 7 
Synonyms – Acid Orange II
Colour Index – (C.I. No.) – 15510 
CAS No. – 633-96-5 
Application – Used for coloring paper, wool, leather, straw and feathers, Phenol Formaldehyde resin, urea and melamine resin. Coloring of soaps, wood stain and biological stain.

Acid Black 1 
Synonyms – Acid Black 10 BX /Acid Black 12 B / Naphthol Blue Black / Naphthylamine Black 
Colour Index – (C.I. No.) – 20470 
CAS No. – 1064-48-8 
Application – Leather, paper, straw and feathers, Nylon and Jute. Dyeing of anodized aluminium. Suitable for writing inks, and colouring urea and melamine moulding powder. Purified form is used in Biological stains.

Acid Black 2 

Synonyms – Nigrosine Water Soluble, Nigrosine W.S., Nigrosine 

Colour Index – (C.I. No.) – 50420 

CAS No. – 101357-32-8 

Application – Colouring Leather, paper soaps etc. manufacturing of hyderated creams, cold polishing inks, anodized aluminium, and wood staining. It is used in froth floatation process in metallurgy for graphite depression.

Acid Black 210   

Synonyms – Benzedene free leather black. 

Colour Index – (C.I. No.) – 300285 

CAS No. – 99576-15-5 

Application – Leather Dyeing

Acid Black 234

 

Synonyms – Benzedene free dye for leather.

Colour Index – (C.I. No.) – 30027

CAS No. – 157577-99-6

Application – Leather Dyeing  

Leather Black

 

Synonyms – Cheap black for Leather.

Colour Index – (C.I. No.) – Blended dye

Application – Dying of Leather