Rung International - India

Rungactive Cold (M) Dyes

RUNGACTIVE ME-Low Temperature High Exhaust dyes are being introduced at a time when demand for Reactive dyes with higher grade of all-round fastness properties are increasing. By linking a chromophore and a reactive group through a special link, our Research and Development Department has developed this new range of dyes, which apart from being structurally different from conventional Rungactive dyes, offer higher grade of all round fastness properties including perspiration, light, chlorine and peroxide washing. These dyes have also an advantage of high degree of exhaustion and fixation rates, better alkali stability and excellent levelling properties. Because of low sensitivity to temperature and excellent alkali stability, dyeings are highly reproducible. Rungactive ME dyes react with cellulosic fibres at low temperatures and can also be applied by cold pad-batch methods, , hence dyes are real energy saving dyes.
 
Rungactive ME dyes can be easily rendered into solution by pasting the dyestuff with cold water and thereafter pouring over it hot water (80-90°C) with thorough stirring.
 
1.
 
Yellow ME4G Yellow -160
2.
 
Yellow ME3G Yellow –167
3.
 
Yellow 3RS Yellow –176
4.
 
G. Yellow MER Yellow –145
5.
 
Orange ME2R Orange –122
6.
 
Red ME3B Red –194
7.
 
Red 3BS Red –239
8.
 
Red ME4B Red –195
9.
 
Red ME6B Red –250
10.
 
Red MERB Red -196A
11.
 
Violet ME2R -
12.
 
Green ME4B -
13.
 
Blue ME2R Blue –248
14.
 
N. Blue ME2G Blue –194
15.
 
N. Blue ME2R -

 

 

 

 

RUNGACTIVE HE dyes are suitable for dyeing cotton and other cellulosic materials. These dyes possess significantly higher exhaustion and fixation efficiency which results in appreciable cost reduction in comparison to conventional reactive dyes. The high fixation and good build up are of particular importance when dyeing polyester/cellulosic blends where liquor to goods ratio is quite high. Due to higher fixation of Rungactive HE dyes, the drained and wash liquor after dyeing contain much less quantity of unifixed dyes, in comparison to conventional reactive dyes, which is of interest when pollution control is major concern to everybody. This facilitates quicker wash off and efficient soaping. The improved stability of Rungactive HE dyes gives improved batch to batch consistancy. Exhaustion of Rungactive HE dyes can be controlled by salt addition and temperature to give level dyeing before alkali addition.
 
ADVANTAGES:
 
  • Excellent build up in high as well as low liquor ratios.
     
  • Not affected by wide variation in liquor ratios in dyeing yarn, loose stock, piece and hank, in package and beam dyeing machines, knitted and woven goods in the winch and woven piece goods on the jigger.
     
  • High fixation and high tinctorial values hence economical in use.
     
  • Very good compatibility gives extensive range of shades based on few dyes and excellent reproducibility, consistant high yields and freedom from 'lisiting' and 'ending'
     
  • Though Rungactive H brand dyes do not have the same exhaust and fixation properties as HE dyes, they can be used in mixtures with HE series.
      
  • Extremely suitable for dyeing single bath 2 step method, Cellulosic part of polyester/cotton and polyester/viscose blends.
1.
 
 Yellow HE6G Yellow - 135
2.
 
 Yellow HE4G Yellow - 81
3.
 
 Yellow HE4R Yellow - 84
4.
 
 G.Yellow HER Yellow - 84A
5.
 
 Orange HER Orange - 84
6.
 
 Orange HE2R Orange - 94
7.
 
 Red HE3B Red - 120
8.
 
 Red HE7B Red - 141
9.
 
 Red HE8B Red - 152
10.
 
 Green HE4B Green - 19
11.
 
 Green HE4BD Green - 19A
12.
 
 Blue HERD Blue - 160
13.
 
 Navy Blue HER Blue - 171
14.
 
 Navy Blue HE2R Blue - 172
15.
 
 Black HEBL -

 

 

 

 

RUNGACTIVE H dyes are monochlorotriazine dyes and hence are relatively less reactive compared to dichlorotriazine dyes. These dyes require more severe conditions of fixation. Fixation is achieved by chemically reacting the dyestuff to the cellulosic material with the help of alkali.
 
Due to their less reactivity, RUNGACTIVE H brand dyes give better print paste stability and hence are mainly used for printing by various application methods.
 
1.
 
 Yellow H4G Yellow – 18
2.
 
 G. Yellow HR Orange – 12
3.
 
 Orange H2R Orange – 13
4.
 
 Red P3B Red – 45
5.
 
 Red 6BX Red – 76
6.
 
 Red H8B Red – 31
7.
 
 Red Brown H4R Brown – 9
8.
 
Purple H3R Violet – 1
9.
 
 Blue H5G Blue  - 25
10.
 
 Blue HA Blue  - 71
11.
 
 Blue P2R Blue  - 39
12.
 
 Blue P3R Blue  - 49
13.
 
 Blue 5RH Blue  - 13
14.
 
 Black HN Black – 8

 

 

 

 

RUNGZOL Dyes possess many salient features, which are summarised below :-
 
  • Very good light and wash fastness.
     
  • Easy to apply on cellulosic fibre by normal exhaust, batchwise, continuous and thermofixation process.
     
  • Suitable for printing by one phase/two phase application method.
     
  • Give brilliant and attractive shades.
     
  • Excellent white effect on dyed grounds by discharge and resist printing method.
     
  • Unfixed dyes are easily washed off
     
  • High stability in dry state and in neutral solution.
RUNGZOL Dyes, unlike most of the Rungactive normal dyes, possess poor affinity for cellulosic fibres in the absence of salt and alkali.
 
The substantivity of RUNGZOL Dyes can be increased by addition of Glauber's salt or common salt in dyeing processes. The fixation of the dyestuff is carried out by addition of alkali in the dye bath or in the printing paste and by application of heat or by brief steaming. The type and quantity of alkali required depends on the temperature employed and method of fixation.
 
The entire dyeing or printing process consists of mainly the following 3 stages:-
 
  • Application of the dyestuff to the fibre.
  • Fixation of the dyestuff on the fibre.
  • Removal of any unfixed dyestuff from the fibre.
1.
 
 Yellow FG Yellow - 42
2.
 
 Yellow GL Yellow - 37
3.
 
 Yellow GR Yellow - 15
4.
 
 G. Yellow RNL Orange - 107
5.
 
 G. Yellow G Yellow - 17
6.
 
 G. Yellow R Yellow - 77
7.
 
 Yellow RR -
8.
 
 G. Orange 3G Orange - 78
9.
 
 Orange FR Orange - 82
10.
 
 Orange 3R Orange - 16
11.
 
 Red C2G Red – 106
12.
 
 Red 5B Red – 35
13.
 
 Red RB Red – 195
14.
 
 Red RBL Red – 196A
15.
 
 Red F3B Red – 180
16.
 
 Red RR -
17.
 
 Red BB Red – 21
18.
 
 Red BSID Red – 111
19.
 
 Red GF Red – 223
20.
 
 Violet 5R Violet – 5
21.
 
 T. Blue G Blue – 21
22.
 
 Green 6B Blue – 38
23.
 
 Blue R Blue – 19
24.
 
 Blue 3R Blue – 28
25.
 
 Blue RR -
26.
 
 Royal Blue BB Blue – 220
27.
 
 Blue BRF Blue – 221
28.
 
 N. Blue BF Blue – 222
29.
 
 N. Blue 2G Blue – 203
30.
 
 N. Blue RGB Blue – 250
31.
 
 N. Blue HRL Blue – 89
32.
 
 Brown GR Brown – 18
33.
 
Black B Black - 5

 

 

 

 

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