Acid Dyes:


Acid Dyes are water soluble anionic Dyes that are applied to fibres such as silk, wool, nylon and modified acrylic fibres from neutral to acid dye baths. Attachment to the fibre is attributed, at least partly, to salt formation between anionic groups in the Dyes and cationic groups in the fibre. Water soluable Acid Dyes are not substantive to cellulosic fibres. Acid Dyes are used both commercially and by the studio dyer to dye protein/animal fibers such as wool, silk, mohair, angora, alpaca and some nylons and synthetics. Acid Dyes require the use of an acid such as vinegar, acetic or sulphuric acid to set the colour.


Acid Dyes sound scary to some novices, who imagine that the Dyes themselves are caustic strong acids. In fact, the Dyes are non-caustic, are in many cases non-toxic, and are named for the mild acid (such as vinegar) used in the dyeing process, and for the types of bonds they form to the fiber. Some of them are significantly more toxic than fiber reactive Dyes, while others are even safe enough to eat, and are sold as food coloring

GENERIC NAME C. I. NUMBER
SHADE
Yellow 2G Acid Yellow 17
 
Tartrazine NS Acid Yellow 23
 
Yellow GL Acid Yellow 114
 
Metanil Yellow Acid Orange 36
 
Orange GT Acid Yellow 3
 
Orange II Acid Orange 7
 
Crystal Orange G Acid Orange 10
 
Orange MSRL Acid Orange 142
 
Croceine S. MOO Acid Red 73
 
Scarlet 3R Acid Red 18
 
Milling Scarlet G Acid Red 97
 
Scarlet ML Acid Red 357
 
Fast Red A Acid Red 88
 
Milling Red RS Acid Red 114
 
Red 3BN Acid Red 131
 
Silk Red 3B Acid Red 151
 
Red 3B Acid Red 128
 
MaroonV Acid Red 119
 
Violet MB Acid Violet 10
 
Violet 4BS Acid Violet 17
 
Patent Blue AS Acid Blue 7
 
Blue C2G Acid Blue 158
 
Navy Blue MTR Acid Blue 193
 
Navy Blue 2RNX Acid Blue 113
 
Leather Br. HEDG Acid Brown 100
 
Brown SG Acid Brown 349
 
Brown 5G Acid Brown 355
 
Brown Acid Brown 402
 
Brown 2RL Acid Brown 45
 
Resorcine Brown RD Acid Brown 14
 
Black 10BX Acid Black 1
 
Black WA Acid Black 52
 
Black NB Acid Black 210
 
Black MRL Acid Black 194
 
Green 6B Acid Green 20
 
Black MR Acid Black 172
 


   
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