* How to wash normal Disperse printed materials by discontinue system?

1) Cold rinsing : 25C for 10 min, 1 gr/L Caustic Soda

2) Cold rinsing : 25C for 10 min, 1 gr/L Caustic Soda

3) Cold rinsing : 25C for 10 min


4) Reduction Washing at 80C for 25 min

5 g/L Caustic Soda
3 g/L Reduktan AN
2 g/L Setalan DFT New


5)Hot Rinsing at 70 C

6)Cold Rinsing and Neutralization

* How to wash Disperse Black prints on white ground by discountinue system?

1) Cold rinsing : 25C for 5 min, 1 gr/L Caustic Soda

2) Cold rinsing : 25C for 5 min, 1 gr/L Caustic Soda

3) Cold rinsing : 25C for 5 min

4) Cold rinsing : 25C for 5 min

5) Reduction Washing at 80C for 25 min

5 g/L Caustic Soda
3 g/L Reduktan AN
2 g/L Setalan DFT New

6) Reduction Washing at 80C for 25 min

6 g/L Caustic Soda
4 g/L Reduktan AN
3 g/L Setalan DFT New


7)Hot Rinsing at 70 C

8)Cold Rinsing and Neutralization

* How to apply a resin finish after drying to block fibrillation in domestic wash on Modal or Viscouse materials?

SETAPERT ECO NEW - 55 g/L Free formaldehyde resin DMDHEU include Catalyst. (Optionally some other products in the market are low formaldehyde (Okotexstandard 100, 75 ppm HCHQ)).

16 g/L (30%) Catalyst e.g. Magnesium chloride hexahydrate (this should be add if resin does not include catalyst).

1 g/L Acetic acid (optional) pH 5-6

SETASIL 64 - max 10 g/L softener eg cationic one or microsilicone

use of following softeners additionally is also usefull

SETAFEN PEN - 20 -30 g/L Polyethylene softener- increases abrasion resistance
SETAFLEX VKC - 20 -30 g/l Polyurethane softerier (non.ionic) - decreases pilling

Drying at 130°C
+
Curing: 165-170°C (air temperature), 45-60 seconds
or
Shock curing

* Good and Economical mix Basic Black for Acrylic dyeing

Generally you can dye with the Setacryl Black FDL but at the same time, you can use following receipe:

% 0.50 Setacryl Golden Yellow GL
% 0.22 Basic Magenta B
% 0.550 Setacryl Green ML

* What the requirements are and what machine manufacturing are offering?

The catalog of modern, up-to-date dyestuffs and dyeing and finishing equipment offers a blend of modern technology and chemistry. Major requirements are as follows:

• reduced water consumption;
• varying load capacity;
• time savings;
• comparable economy and ecology;
• highly optimized rinsing processes;
• controller units;
• downstream processing advantages;
• wet finishing process;
• economical finishing; and
• monitoring and controlling.

* Quality, economic efficiency and, more and more

Quality, economic efficiency and, more and more, ecological methods are the prerequisites for up-to-date production in the dyehouse. Color shade and depth must be attainable, and there should be adequate levelness and accurate fastness properties. Appropriate mechanical and chemical processing is necessary to suit customer requirements as well as to create the required fabric hand and surface characteristics.

Economical and ecological efficiency involves minimization of costs and maximum profit as well as reproducible quality with minimal environmental damage. Therefore, process optimization is a must to fulfill all parameters and requirements for right-first-time production. Western wet-finishing costs are more and more apparent in various Asian countries as well, and can be divided into the following approximate cost proportions:
• 42-percent labor;
• 29-percent dyestuffs and chemicals;
• 6-percent water;
• 12-percent energy;
• 6-percent environment and safety measures; and
• 5-percent maintenance.

* What are the particle sizes of Setas Kimya Pigments?

All Blue Pigments :0,08 micron
All Green Pigments :0,08 micron
All Violet Pigments :0,08 micron
All Yellow Pigments :0,32-0,35 micron
All Orange Pigments :0,30-0,35 micron
All Red Pigments :0,32-0,38 micron
All Black :0,08 micron

* The role of sequestering agents in reactive dyeing

Is the use of a sequestering agent required when dyeing with reactive dyes?

When the water of the dyebath contains metallic ions, there is the danger that uneven dyeing, such as specking, or reduction of the concentration of the dye will be caused by the dyestuff's coagulation and reduced solubility. Aside from in the water, metallic ions can also be introduced by impurities in Glauber's salt or common salt, so even when soft water is used in the dyeing, the presence of metallic ions can lead to problems. In Japan, the water quality is generally very good and the chemicals used contain very few impurities, so sequestering agents are often not used. Overseas, however, the use of sequestering agents is very important.
In the past, traditional thinking has been that "if the chromophore of a dyestuff is a metallic complex salt, then sequestering agents should not be used." Recently, however, it has been ascertained that sequestering agents added to the dyebath have practically no effect on the metal in the chromophore of the dye.
Sequestering agents effective in neutral to alkaline conditions are preferable, and agents combining the effects of sequestering agents with those of anionic surfactants and marketed for use with reactive dyes are now being developed.

* The importance of surfactants in reactive dyeing

The standard recipes for reactive dyestuffs given in the examples provided by dyestuff manufacturers often do not include the addition of surfactants such as dyebath lubricants. Doe this mean that they are not required?
In the dyeing of cotton with reactive dyes, because hydrophilic fibers are dyed with water-soluble dyestuffs, the dyeing itself does not require the use of surfactants. However, in the dyeing of cloth, it is difficult to spread the cloth out in the dyebath, and so it is often dyed in rope-form, but because it is sometimes difficult to circulate the liquid over the cloth, rope marks can easily form. The use of a dyebath lubricant is recommended as a method for dealing with this problem. The use of cold and warm dyeing dyestuffs when the temperature of the dyeing is below 55°C means the fiber is dyed while it is in a hard state, making a dyebath lubricant especially important for improving the quality of the dyeing. When dyeing is conducted at a temperature above 60°C with warm and hot dyeing reactive dyestuffs, however, the fiber itself softens and spreads easily, so the use of a dyebath lubricant is not as important.
However, when the solubility of a reactive dyestuff is reduced due to factors such as association, the use of a surface-active dyebath lubricant can result in a dispersion effect. Furthermore, when a small amount of wax still remains on the substrate due to insufficient scouring, the use of a dyebath lubricant can promote the permeation of the dye liquid. Thus to lower the degree of risk in dyeing, the use of an appropriate dyebath lubricant is recommended.

* The role of alkali in reactive dyeing

When dyeing with reactive dyestuffs, soda ash is often used as the alkali in dyestuff manufacturers' recipes. Recently, however, a synthetic alkali has appeared. What is the role of alkalis in reactive dyeing and what should be considered when choosing one?

In the dyeing of cellulose with reactive dyes, alkali is necessary because it acts as a catalyst in the reaction between the dyestuff and the fiber. The important point is not the type or amount of alkali but rather the pH of the dyebath, which must be closely supervised.
The most suitable pH for dyeing varies with the temperature, being approx. 11.5 for common warm dyeing (dyeing at approx. 60°C), 10-11 for hot dyeing (80°C) and 12.5 for cold dyeing (40°C). The relationship between temperature and the optimum pH is shown in the following graph.

Soda ash is often used because 20g/l usually produces a pH of around 11.5. However, it can be used with sodium phosphate or caustic soda when a higher pH is required, or with sodium bicarbonate (baking soda) when a lower pH is required. Caustic soda is not often used because it is a strong alkali and achieving a pH in the range of 10-12 is difficult. Nothing prevents it from being used, however, if the pH can be adjusted accurately with automatic equipment.
Recently introduced alkaline agents specifically for use with reactive dyes adjust the pH of the dyebath to a level suitable for dyeing with reactive dyestuffs and are easy to use because they come in liquid form, but the alkaline agent to be used should be chosen in consideration of the optimum pH for the temperature at which the dyestuff is to be used. The pH of the first bath is often checked to determine the pH for the dyeing, but attention should be paid to the pH after dyeing because if alkali is not added in sufficient quantity, the pH at the conclusion of dyeing may be considerably lower.