Page 98 - Basic Principles of Textile Coloration
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COTTON PROCESSING 87
NHCONH NaO3S NHCONH
CH CH
SO3Na
CI Fluorescent Brightener 30 (cotton)
NaO3S
C2H5O NN CH CH NN OC2H5
SO3Na
CI Direct Yellow 12
NaO3S CC SO3Na NaO3S NN NH2
HN NH
SO3Na
C
O CI Acid Yellow 9
CI Fluorescent Brightener 48 (wool)
CH3 OO CH3
C CH C
NN
CH3 CH3
Cationic Brightener (acrylics)
CH3 CH3 CH3 CH3
C C
C CH CH CH C
NN
CH3 CH3
CI Basic Red 12
CH3 OO CH3
C CH CH C
NN
Brightener for polyester
CH3O S CH2CH2OH
NN N
N CH2CH2OH
CI Disperse Red 58
Figure 5.6 Chemical structures of some FWAs and closely related dyes
