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'C' Dyes on Cotton
Rifix, 'C' Brand Dyestuffs(Cyanuric chloride based) are fibre reactive dyes which form a chemical linkage with hydroxyl groups of cellulose and thus give dyeings of very good fastness to wet treatments.
C Brands are applicable from cold bath while 'H' & 'PN' Brands are to be applied at temperature of about 80oC. Both these brands suitable for dyeing and printing of cotton, viscose, cuprammonium rayon and natural silk.
Rizol Dyestuffs(Vinyl Sulphone based reactive dyes) are suitable for padding processes due to their high solubility even in presence of alkali. These dyes can also be used for all conventional exhaustion method by addition of Glauber's/common salt and alkali
Procedure for Dyeing with 'C' Brand Rifix Dyes
Receive cold water in the dye-bath (Recommended m/l ratio 1 to 15), add required quantity of common salt or glauber salt. Paste requisite Refix 'C' brand dye with water and dissolve by adding water at 45oC to the same. Add dissolved dye to the dye bath. Enter material, at 30oC run for 15 to 20 minutes. Add required amount of soda ash (as solution), run material for 45-60 minutes, squeeze, wash with water and soap at boil with 2 g/l soap, wash with water and dry. Soaping treatment is highly essential to remove unfixed dye to produce dyeings of high washing fastness.
Quantities of Salt & Soda ash for Rifix 'C' Brand
|
Depth of shades %
|
Common salt/Glauber's salt g/l (dye liquor)
|
Soda Ash g/l (dye liquor)
|
|
Up to 0.5
|
30
|
3
|
|
0.5 to 2.0
|
40
|
4
|
|
2.0 to 4.0
|
50
|
7
|
|
Above 4.0
|
60
|
10
|
General Properties
|
C Dyes on cotton
|
Solubility gms/I
|
Dyeing Properties
|
Fixation Temp. Exhaust Dyg.
|
|
Temp.
|
Straight
|
30 pts/1000 common salt
|
Substantivity
|
Reactivity
|
|
Yellow M8G *Yellow 86
|
30oC
|
70
|
40
|
L
|
M
|
40oC
|
|
Yellow M4G
*Yellow 22
|
30oC
|
40
|
20
|
M
|
M
|
40oC
|
|
Yellow MGR
*Yellow 7
|
30oC
|
30
|
5
|
H
|
M
|
40oC
|
|
Golden yellow MR
*Yellow 44
|
30oC
|
160
|
130
|
H
|
H
|
40oC
|
|
Yellow M4R
*Orange 14
|
30oC
|
80
|
40
|
M
|
M
|
40oC
|
|
Orange M2R
*Orange 4
|
30oC
|
180
|
160
|
M
|
M
|
30oC
|
|
Red M5B
*Red 2
|
30oC
|
80
|
50
|
H
|
H
|
40oC
|
|
Red M8B
*Red 11
|
30oC
|
50
|
10
|
H
|
M
|
30oC
|
|
Pink MB
*Red 74
|
30oC
|
80
|
40
|
H
|
M
|
30oC
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*C.I. Reactive
Fastness Properties
|
Day Light 1:1
|
Washing
|
Bleaching
|
Alkaine Perspiration
|
|
Alteration
|
Stain
|
Hypochlorite
|
Hydrogen Peroxide
|
Alteration
|
Stain
|
|
Alteration
|
Stain
|
|
6-7
|
5
|
5
|
1
|
4-5
|
4
|
4-5
|
5
|
|
6
|
5
|
5
|
1
|
3-4
|
5
|
4-5
|
5
|
|
6
|
5
|
5
|
4-5
|
4-5
|
5
|
5
|
4
|
|
6
|
5
|
5
|
2-3
|
4-5
|
5
|
4-5
|
4
|
|
5
|
5
|
5
|
1
|
3-4
|
5
|
4
|
4
|
|
4
|
5
|
5
|
4
|
4
|
5
|
4-5
|
4
|
|
4-5
|
5
|
4-5
|
1
|
2
|
4-5
|
5
|
3
|
|
4-5
|
5
|
5
|
4
|
4-5
|
4
|
4-5
|
2
|
|
4-5
|
4
|
4-5
|
2
|
3
|
3
|
4-5
|
5
|
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