CAMEX CAMEX

 

     
 
  Comective H & P Series

These are monochlorotriazine reactive dyes. Due to single chlorine group they have low reactivity and hence requires severe conditions of fixation with cotton fabric. They can be applied on cotton fabric by both Dyeing and Printing Methods.

1) Exhaust Dyeing
 
CAMEX
Diagram not to scale
 

 

Minutes  
Raise temperature to 50°c  

Load machine, run liquor and / or fabric. Ensure that pH is below 7. Adjust with acetic acid if necessary

  05 add predissolved Dye
  10 continue dyeing
  02 add 2.5 g/l Salt
Raise temperature to80-85°c @1°c/min. while 10 continue dyeing
  03 add 20 g/l Salt
the salt is being added
  10 continue dyeing
  05 add remaining Salt
  15 continue at 80-85°c to allow a uniform temperature to be achived throughout the machine, allow 15 minute after the last salt addition if salt is still being added when the temperature reaches 80-85'c
  15 add Soda Ash slowly
  45-75 dye at 80-85 °C
    check shade
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2 ) Jigger Dyeing Process
 
Load the goods on Jigger - 1 end
Set dyebath at room temp with required water + 0.5-1 g/l Camasequest N - 1 end
Add half the dye solution & run the fabric - 1 end
Add remaining half dye solution & run the fabric - 1 end
Start raising the temp & add 10% amount of the total salt in 2 ends - 2 ends
Add 30% of total salt in 2 ends - 2 ends
Add remaining salt in 2 ends - 2 ends
At 80° C run the fabric - 2 ends
Add soda at 80° C 1/2 the amount - 1 end
Add remaing half amount of soda & run the fabric - 1 end
At 80° C run the fabric - 4 ends
Cold wash - 2 ends
Hot wash - 2 ends
Soaping at boil - 2 ends
Hot Wash - 2 ends
Cold water - 2 ends
Total - 28 ends
In case of dark shades salt can be added portion wise, as per Exhaust Dyeing Method.
 

Depth of Shade
(% on weight of goods)

Salt
GPL
Soda Ash
GPL
Up to 0.5 30 10
0.51-1.0 45 15
1.01-2.0 60 15
2.01-4.0 70 20
Above 4.0 90 20
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Printing Method :
 
(1) Print - Dry - Steam
 
Recipe Camective 'H & P' Dyes - X Part
  Urea - 100 Parts
  Sodium Alginate (4-6%) - 400 Parts
  Resist Salt - 10 Parts
  Soda-Bicarbonate - 15 Parts
  Water - Rest
  Total - 1000 Parts

Process :-

Mix dye with urea and add warm water and stir well. To this solution add Sodium Alginate and Resist salt and stir well. Add predissolved sodium bicarbonate just prior to printing.

Print the fabric and dry. Then steam the dried fabric at 100-102°C for 7-15 minutes Finally wash the fabric and dry. If required can give dye fixing treatment. If high temperature steam is used of temp 110-150°C then steam for 5-3 minutes depending on temperature.

 
(2) Print - Dry - Bake - Wash - Dry
 
Recipe Camective 'H & P' Dyes - X Part
  Urea - 150 Parts
  Sodium Alginate (4%) - 400 Parts
  Resist Salt - 10 Parts
  Soda ash - 15 Parts
  Water - Rest
  Total - 1000 Parts
 
The fabric is printed with above print paste and dried. The dried goods are then baked on follows.
 
Parameters Cotton Viscose
Temperature 140° c 200° c 150° c 200° c
Time 5 min. 1 min. 5min. 1min.
 

Note : For printing with T. Blue H5G and Red Brown H4R use sodium Bi­carbonate instead of soda ash. For Black HN higher amount of soda ash is used upto 30 gms/lit.

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(3) Print - Dry - Pad Batch - Wash - Dry
 
Recipe Camective 'H & P' Dyes - X Part
  Urea - 100 Parts
  Resist Salt - 10 Parts
  Sodium Alginate Paste (4%) - 500 Parts
  Water - Rest
  Total - 1000 Parts
 

The Fabric is printed with above print paste and dried. It is then padded through sodium. Silicate solution of 100 -102° Tw and kept overnight and then washed and dried.

Note : Generally 2 g/l of Sodium Alginate is recommended while padding through alkali to avoid migration.

General Washing Method

In order to achieve maximum fastness properties a proper wash off is essential for the dyed and printed goods.

 
Minutes  
10 Rinse Cold
10 Rinse Warm
15-30 Soap at the boil. For Very heavy depth shades soaping required twice.
10 Rinse Warm
  Rinse Cold until clear solution is obtained.

For Medium to heavy shades an after treatment with 1 - 2 g/l dye fixing agent is given at room temperature (40°C at acidic pH of 6- 5.5 to improve fastness properties.)

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CAMEX
CAMEX
CAMEX YELLOW H4G
Reactive Yellow 18
G. YELLOW HR
Reactive Orange 12
ORANGE H2R
Reactive Orange 13
ROSE 3BX
Reactive Red 24A
RED P2B
Reactive Red 24
RED H8B
Reactive Red 31
RED P3BX
Reactive Red 45
RED H7B
Reactive Red 4
RED P6B
Reactive Red 218
RED P4B
Reactive Red 245
CAMEX RED BROWN H4R
Reactive Brown 9
BLUE HGR
Reactive BLUE 5
BLUE 5RH
Reactive BLUE 13
T. BLUE H5G
Reactive BLUE 25
BRILL BLUE H3RP
Reactive BLUE 49
NAVY BLUE RX
Reactive Blue 59
T. BLUE HA
Reactive Blue 71
PURPLE H3R
Reactive Violet 1
MAGENTA HB
Reactive Violet 14
BLACK HN
Reactive Black 8
 
 
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