Wednesday, July 7, 2010

* 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.

Tuesday, June 8, 2010

* 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.

Tuesday, May 4, 2010

* 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.

Thursday, March 11, 2010

* 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.