Reactive Turquoise Blue G        

      ( Reactive Blue 21 )

        Avoid the use of non-ionic agents.
        Apply with Glauber's salt.
        In mixtures with certain dyes may catalyze abnormal
light fading at high humidties

 

                                   Suitability for application process

      Exhaust Process    highly recommended
     Cold pad-batch Process    not recommended
     Continuous Process    Recommended
     Printing Process    Recommended

                                        Other properties

       Substantivity      B           Effect of metals
       Reactivity      II
         Cu++      4-5
       Washing off      X
         Fec++        5

 

       Reactive Turquoise Blue G

     (Reactive Blue 21)

      Fastness properties
      Cotton      Viscose
     Depth of dyeing(%)   1   3   6    1    3    6
     Light(Xenon lamp)   4  4-5   4-5    4-5   4-5    5
     Perspiration /Light   acid   --   3   --     -   3-4    --
        alkaline   --   3   --     -   3-4    --
           Al   C   W     Al   V    W
     Washing   60C   4-5   4-5   4-5     4-5   4-5    4-5
                            
        95C   3-4    4     4      4    4     4
   Perspiration      acid   4-5    3-4     4    4-5    4     4
                            
        alkaline   4-5    3    4-5    4-5    3-4     4
  Rubbing   dry   4-5    --     --     5    --     --
                            
        wet   3-4   --     --    3-4    --     -- 
  Drycleaning   4-5   --    --    4-5    --     --
  Water(16 hrs)   5   5    5    5    5     5
  Seawater   5   5    5    5    5     5
  Chlorinated water   3   --    --    3    --     --
  Mercerization   4-5   4    --     --    --     --
  Peroxide bleaching   3   4-5    --    4   4-5     --
  Hot pressing   Immediately   3G    --     --   3G    --     --
     After 4 hrs    5    --     --    5    --     --

ABBREVIATION

  Al : Alteration   W : Wool staining   Str: Strong   Br : Bright
  C : Cottonstaining    P/E: Polyester   D : Darker   Y : Yellowish
  R : Reddish

   B : Bluish

  G : Greenish   A : Dischargeable to a         good  white
  B: Dischargeable        to a moderate        white
     C : Suitable for colored            discharges only   D : Not suitable for         either discharge or         discharge/resist         purposes

     Reactive Turquoise Blue G

    (Reactive Blue 21)

    Properties
        The minimum fixation time       8 hours
        The minimum fixation time      72 hours
        Dyeing Liquor Stability      60 minutes
        Dyeing Liquor storing 15 min.      108.9%
        Fixation      77.6%

 

     Solubility
        500 C x 10 min.       8 hours
        500 C x 10 min. → 250 C      72 hours
        200 C x 10 min.      60 minutes
        200 C x 10 min. ( with urea 100g/l )      108.9%
              77.6%

 

    Solubility with alkali
  A

       Glauber`s Salt 30g/lNaOH (380Be`) 38ml/l

    150g/l
  B

       Sodium Silicate (480Be`) 100g/l NaOH (380Be`) 30ml/l

    150g/l
  C

       Sodium Silicate (480Be`) 50g/l NaOH (380Be`) 31ml/l

    150g/l