* How to wash printed Polyamide fabrics?

1. 2.0 g/L Setafix ANF (10 min. cold rinsing)
2. 1.0 g/L Setafix ANF (10 min. cold rinsing)
3. 10 min. cold rinsing
4. 1.0 g/L Setalan PM-8 at 30C, 10 min.
5. 1.0 g/L Setalan PM-8 at 40C, 10 min.
6. 1.0 g/L Setalan PM-8 at 40C, 10 min.
7. 2.0 g/L Setafix ANF at 50C, 20 min.
8. %2 Setafix ANF, pH:5.0 with Acetic Acid at 50C, 20 min.
9. Rinsing at 30C

Pre - treatment of Modal fabrics?

Viscose and Modal fibers are supplied in the pure state and with an incomparably higher degree of whiteness than cotton. Bleaching processes are, therefore, only required for completely white products (reduced quantities of chemicals) or pastel shades.
While tending to be unaffected by the usual chemical concentrations, viscose and Modal fibers react rapidly and intensely on coming into contact with alkali. Both fiber types are capable of being activated by a lye concentration of 4.5% (7°Bé) to such an extent that a distinctly higher dye absorption results.

While a concentration of 4.5% NaOH (7°Bé) represents the upper limit as far as viscose fibers are concerned, Modal fibers can, leaving aside the critical range of 7% to 15% NaOH, be treated with mercerizing lye of 17% to 22% (24–28°Bé). For bleaching products the temperature should not be allowed to exceed 180°C, e.g. heat-setting of blends with PES. Prior to thermal reaction, the fibers must be generally free of alkali residues.

Pre - treatment receipe for white products:

Setabicol BAC :6 g/L

Setalub ACA :1 g/L

Hydrojen Peroxide (50%) :4 g/L

Temperature : 90 - 98°C

Time : 45 - 60 min.


Note: Creases can occure if material is wet and wait. Centrifugal machine should not be used at any stage and it must be dried immediately after all wet processes.

* How to dye Black polyester at 98C?

% 0.20 Setapers Orange H-3R

% 6.00 Setapers Black CE-RN

3 g/L Setacarrier HT, dyeing at 98C for 60 min.

* How to strip Turquoise dyed cotton material?

15,00 g/L Hydrosulphate
6,00 - 7,00 g/L Caustic Soda
3 g/L Setalan IW

95C, 20 - 30 minutes.

Note: Please make a trial in laboratory before application in the bulk.

* What are Exhaustion curves of Setazol Yellow 3RS, Red 3BS and Blue BRF? What are important fastness properties of Setazol Blue BRF?

- Three dyes has very close Exhaustion curves and therfore this combination obtain level dyeing with good reproducability,

- Setazol Blue BRF has high light fastness in 1/1 depth is (6),

- Setazol Blue BRF has lower Chlorinated Water (3) and Gas fastnesses (3).

* If requirement for shrinkage of Viscose knitted fabric is less than 5%?

a) If requirement for shrinkage of Viscose knitted fabric is less than 5%, it should be used a Free Steam dryer instead of normal stenter. After free steam dryer, material should be sanforazed in a sanforization machine.

b) Material should be in the Process as following;

- Weak Cold Caustification (it can help for better size stabilisation and less creasing of the fabric)
- Dyeing,
- Open width free steam dryer,
- Sanforization.

* How to strip Setasil 64?

The test must be carried out firstly in laboratory conditions in order to see change of the color.

There are 3 alternatives;

1. 12 g/L Setalan OSK - N + 8 g/L Caustic Soda 48 Be, 98 C de, 48 min.

2. 10 g/L Setawash L400 + 10 g/L Soda Ash, 98 C de, 48 min.

3. 6 g/L Setalan OSK - N + 4 g/L Caustic 48 Be, 98 C de, 48 min.

* How to wash HT Machine effectivly?

1. Guide Fabric :It can be an old and un – useful 100% PES fabric. It has to be used because to run in the machine and collect dirties to itself.

2. Machine :Machine have to be full filled by 2/3 water.

3. Chemicals :

3 – 4 g/L SETALAN OSK – N - It is using to remove olygomers.
5 – 6 g/L Hydrosulphite or 2–3 g/L Reduktan AN - Reduction Agent
10 g/L Caustic Soda - To have necessary Alkali condition.
2 – 3 g/L Setawash BNH - It is for creating foam. Foam have to be used for penetration of the chemicals to all parts in the machine.
2 g/L Setacarrier HT - Its for migration of the dyes from one place to other place.

5. Temp. :at 135C, 45 min - 1 hour.

4. Drain :After finish the washing, water have to be drain as hot as possible.

* How to dye fabric for man suiting: Warp: CDP/Rayon, 70/30 - Weft: 1) CDP/Rayon,70/30 2) PES,DTY fabric?

The process is:

1. Pre - washing:

1 g/L Setabicol BAC, 80C, 20 minutes.

2. Rinsing
3. Nutralisation with A.Acid
4. Dyeing in one bath CDP/PES:

* Disperse dyes :Setapers CE range dyes
* CDP dyes :Setacryl Golden Yellow GL, Red FBL, Blue FGRL and Black FDL (for Black) - Setacryl dyes must be dissolved very good with addition of A.Acid with bioling water and part from IK-200.


A)
add 1 g/L Setalan DFT
add 1 g/L Setalan IK-200
adjust the pH to 4 - 4.5 (A.Acid)
30 - 40 min.
120C -----------------------------------------------
/
/
Disperse dyes / 1C/min.
10 min. / 10 min. /
--------------------------------------------/
/ /
A) Chemicals Setacryl dyes

5. Washing:

1 g/L Setalan DFT, 70C, 20 min.

6. Reactive dyeing:

Normal dyeing.

* How to pass from WICKING AND DRYING TIME TESTS?

1) For PES/Co fabrics ;

a) After finish the dyeing and washing of PES and Co material, adjust last bath (Softeneer bath) to pH 5,5 with Setacid NV-C, than add 2% SETASOFT AQUA-ESF to the same and re - check for pH to be 5,5. Application should be carried out at 70 C, 15 minutes. pH have to be adjusted with Setacid NV-C instead of asetic acid.

b) After above application, the padding bath in the drying stenter should be adjust to pH 5,5 with SETACID NV-C, than 1add 100 g/L SETASTAT TM-P and 100 g/L SETASOFT AQUA-ESF
(Pick up :25 %)
Proces is from wet on wet so chemical consumption is more than usual.

c) Drying in Stenter


2) For 100 % Cotton;

a) After finish the dyeing and washing of Co material, adjust last bath (Softeneer bath) to pH 5,5 with Setacid NV-C, than add 2% SETASOFT AQUA-ESF to the same and re - check for pH to be 5,5. Application should be carried out at 70 C, 15 minutes. pH have to be adjusted with Setacid NV-C instead of asetic acid.

b) After above application, the padding bath in the drying stenter should be adjust to pH 5,5 with SETACID NV-C, than add 100 g/L SETASOFT AQUA-ESF (Pick up :25 %)
Proces is from wet on wet so chemical consumption is more than usual.

c)Drying in Stenter

* Which Setazol dyestuff combinations should be sellected for Green, Violet, Red and Turquoise High Light fastness colors?

Combination for High Light Fastness Reactive turquoise and green colors:

Setazol Yellow 4GL conz
Setazol Green GB
Setazol Blue LF

Combination for High Light Fastness Reactive red colors:

Setazol Yellow 3RS
Setazol Red 3BS
Setazol Red GF

Combination for High Light Fastness Reactive violet colors:

Setazol Blue RN
Setazol Red GF
Setazol Blue BRF-X

* Which Setazol Black(s) should be sellected for minimum color difference for a mixture of 50% Co/50% Cv material?

The exhaustion of Cv (Viscose) is higher than Co (Cotton) therefore to minimize color difference, must be sellected concentrated and different exhaustable dyes like combination of Setazol Black SBG + Setazol Black SBR.

* What are the important points while doing reduction clearing with Reduktan ACR?

Reduktan ACR is an innovative "Powder Acidic Reduction Clearing agent for washing Polyester fiber, yarn and fabrics. Thanks to its properties, Reduktan ACR can be added into dyeing bath at the end of dyeing process without drain the bath. Safe time, energy etc., gives excellent results for washing fastness even for very dark and critical shades.

a) Reduktan ACR should not be added into the dyeing bath when dyeing with small mollecule "carrier type" dyes. It must be added in a new fresh washing bath.

b) The pH of the reduction clearing bath must be pH 4.0. Control the pH before add Reduktan ACR and if it is neccessery, adjusted with Acetic Acid;

0.4 – 3 g/l Reduktan ACR
2 - 5 g/l Acetic acid (pH 4.0)
80 - 85°C, 20 minutes.