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Direct Dyes
Direct dyes are another class of
dyes, one of the two types of dyes that are mixed in 'all purpose'
dyes such as Rit. (The other type in the mixture is an acid dye,
which will not stay in any cellulose fiber for long.) The colors of
direct dyes are duller than those provided by fiber reactive dyes,
and the wash fastness is poor - except anything dyed with them to
'bleed' forever. The one advantage is that direct dyes may be more
light fast, that is, resistant to fading in the light, than fiber
reactive dyes. The "direct dye" classification in the Color
Index system refers to various planar, highly conjugated molecular
structures that also contain one or more anionic sulfonate group. It
is because of these sulfonate groups that the molecules are soluble
in water. Though most direct dyes still can be obtained in powder
form, it is increasingly popular to receive them as liquid
concentrates.
Trade Name
|
C.I. Name
|
| DIRECT CRYSOPHENINE G |
DIRECT YELLOW |
12 |
| DIRECT ORANGE SE |
DIRECT ORANGE |
26 |
| DIRECT ORANGE TGLL |
DIRECT ORANGE |
34 |
| DIRECT ORANGE GL |
DIRECT ORANGE |
39 |
| DIRECT FAST SCARLET 4BS |
DIRECT RED |
23 |
| DIRECT FAST RED 12B |
DIRECT RED |
31 |
| DIRECT LIGHT RED F3B |
DIRECT RED |
80 |
| DIRECT FAST RED 8B |
DIRECT RED |
81 |
| DIRECT LIGHT FAST VIOLET HELIO B |
DIRECT VIOLET |
51 |
| DIRECT SKY BLUE FBC |
DIRECT BLUE |
1 |
| DIRECT SKY BLUE FFH |
DIRECT BLUE |
15 |
| DIRECT BLUE GLL |
DIRECT BLUE |
71 |
| DIRECT BLUE RLL |
DIRECT BLUE |
80 |
| DIRECT TURQ. BLUE GL |
DIRECT BLUE |
86 |
| DIRECT TURQ BLUE FBL |
DIRECT BLUE |
199 |
DIRECT BLACK VSF
|
DIRECT BLACK |
22 |
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