The reactive dyes discharge/resist reactive dyes printing recommended by our company is a new technology which is applied for resist/discharge printing process with the dischargeable or resisted Marcozol® CDR type dyes of ground colour , Marcocion® P type dyes of illuminated colour and environmentally-friendly chemical auxiliaries such as CLEANTEX PWC,EMVATEX DK-TN and CLEANTEX D-TN. As Marcocion® P type owns such characteristics as a wide range of colours,bright shade,simple and reliable application ,they are developing a new field of discharge/ resist printing.
The Marcozol® CDR type can also be used in normal discharge/resist printing (i.e, the white discharge printing with Reduction agent of Rongalite , the colour discharge with illuminated colour of vat dyes or pigment ) .After printing , there are less impact and good white discharge on the shade of ground fabric.
The list of Marcozol® CDR type dyes
| Marcozol® CDR Brilliant Yellow |
Marcozol® CDR Sky blue |
| Marcozol® CDR Yellow-A |
Marcozol® CDR Brilliant blue |
| Marcozol® CDR Golen Yellow |
Marcozol® CDR Deep Blue |
| Marcozol® CDR Orange |
Marcozol® CDR Green |
| Marcozol® CDR Pink |
Marcozol® CDR Navy blue |
| Marcozol® CDR Deep red |
Marcozol® CDR Black-A |
Photo of the discharge/resist printing
| Reactive dyes discharge reactive dyes printing |
Reactive dyes resist reactive dyes printing |
|
|
Reactive dyes discharge reactive dyes printing for Marcozol® CDR type dyes
1.Procedure: Ground colour dyeing → Printing →Drying → Steaming → Baking → Washing → Soaping → Washing → Drying
2.Formulation of colour paste:
(1)recipe for stock:
 The temperature of 80°C is suitable for dissolving urea to eliminate releasing heat energy.
For the stock preparation , discharge thickener EMVATEX DK-TN plus urea is added into the water for dissolution ,then stirred well and stored for a long time to make the thickener swell and enable the chemical auxiliaries to disslove completely.The stock is semi-transparent before use.
(2)
recipe for discharge printing paste:
3.Process condition:
Before soaping,the residual dyes and chemical agents on fabric should be removed completely then operated in accordance with the programme,i.e.cold running washing -warm running washing - soaping - warm running washing .The complete soaping is very effective for washing.
| Conditions |
Temperature |
time |
Steam |
102-105°C |
8-10min |
Curing |
160°C |
3min |
Soaping |
>95°C |
3-5min |
4.Notes:
(1)The fabric should be dried completely after printing.
(2)In accordance with such factors as actual equipment and different fabric,the curing and steaming process should be adjusted for printing process.Before adjustment,pre-trial is necessary to ensure printing effect then produce.
(3)
Before soaping,the scum on fabric should be removed completely.Two cycles of washing can be adopted if necessary to eliminate colour stain.
(4)
The assistant-discharge agent D-TN should be added into the colour paste at last step during the discharge printing colour paste preparation .
The reactive resist reactive dyes printing for Marcozol® CDR type dyes
Marcozol® CDR range itself is resistibility in printing.Marcocion® P dyes and resist agent CLEANTEX PWC can be used to resist Marcozol® CDR dyes.This resist printing owns its charateristics of more stable process and brighter shade on fabric.
1.
Procedure: illumination printing → over-printing → drying → steaming → washing → soaping → drying.
2.
Recipe:
(1)
Formulation of stock:
| Sodium alginate |
5 |
| Water |
X |
| Hexametaphosphate |
0.5-1.5 |
| Soda ash |
0.2-0.5 |
| Water |
Y |
| Total |
100g |
(2)Formulation of illuminated colour paste:
| |
White resist |
colour resist |
| Marcocion® P dyes |
- |
X |
| Urea |
- |
8-10 |
| CLEANTEX PWC |
0.2-5 |
0.2-5 |
| Sodium bicarbonate |
- |
2 |
| Stock |
60 |
60 |
| Water |
Y |
Y |
| Total |
100 |
100 |
(3)Formulation of ground colour paste:
| Marcozol® CDR dyes |
X |
| Water |
Y |
| Urea |
8-10 |
| Sodium bicarbonate |
2 |
| Anti-reduciton agent |
1 |
| Stock |
60 |
| Total |
100 |
3.Production condition:
Steaming at 102°C for 8min.
Soaping at 95°C for 3-5min. with detergent of 4-6g/L.
4.
Notes:
(1)
The dose of resist agent P.W.C. depends on that of CDR dyes during the bulk trial.
(2)
The fabric should be dried completely after printing.
(3)
The steaming condition should be stable for good resist printing effect .
(4)
If halation occurs in production,anti-halation agent HY should be added into the paste to tackle the problem. |
