SPECIAL DETERGENT AND EMULSIFIER FOR REMOVING LUBRICANTS.

AVCO-BLANK DSP is a non-ionic surfactant composed of a blend of emulsifiers and detergents. The product has low foaming properties even in boiling bleaching bath. It can be used as a scouring agent, bleaching and dyeing auxiliary for preparation and dyeing of fibres, hanks, packages, fabrics and garments made from cellulosic and synthetic fibres. It is a multifunctional detergent with wetting, emulsifying and scouring properties. It is very effective for removing silicone and hydrocarbon lubricants from textiles.

It is recommended for pre-treatment processes in all types of preparation and dyeing machines..

AVCO-BLANK DSP is composed of biodegradable ingredients with no potential for bioaccumulation, and with no evolution of toxic compounds during biodegradation.

SPECIFICATION:

Appearance	Clear, colourless liquid.
Chemical nature	Aqueous blend of nonionic and amphoteric surfactants, fatty esters and solubilizers.
Ionic type	Non-ionic/ amphoteric
pH (10% Sol.)	4.5 – 6.5
Solubility	Emulsifiable in water in all proportions
Compatibility	Compatible with non-ionic, cationic and anionic dyestuffs and auxiliaries.
Storage	Becomes viscous at freezing temperatures, fully usable after thawing. Shelf life is at least 12 months.

PROPERTIES & USES:

1. Excellent detergency, wetting, emulsifying and dispersing properties.

2. Good soil suspending properties, which can prevent any re-deposition of soil on dyed fabric through all dyeing cycle.

3. Very good emulsifier towardssilicone and hydrocarbon oils and lubricants which contained in raw fabrics and yarns. Highly recommended for removing texturizing oils , knitting oils, “sulzer” loom oils and silicone lubricants from all kind of fibres.

4. Stable to high temperature, suitable for dyeing at H.T. conditions.

5. Good stability towards electrolytes as used in cotton bleaching and dyeing.

6. AVCO-BLANK DSP is very versatile. Due to its excellent detergency it can be used in many wet processes such as scouring, bleaching, dyeing , soaping etc.

APPLICATION:

Due to its wide versatility, AVCO-BLANK DSP has a number of important uses for scouring and dyeing as follows:

1. Cotton and blends:

AVCO-BLANK DSP is recommended for all types of preparation and bleaching processes of textiles composed of cotton and blends with synthetics.

Following are dosage recommendation for various processes:

¨ Alkaline pre-treatment 1.0 – 2.0 g/l

¨ Pre – scouring 1.0 – 2.0 g/l

¨ Bleaching 1.0 – 2.0 g/l

¨ Dyeing 0.5 – 1.0 g/l

¨ Scouring knits containg spandex/lycra 1.0 – 2.0 g/l

2. Peroxide bleaching of cotton and cotton blends

a) Fill machine with water and add chemicals:

AVCO-BLANK DSP 1.0 – 2.0 g/l

AVCO-SLIP AND (bath lubricant) 1.0 – 2.0 g/l

b) Load fabric and run for 5-10 minutes.

c) To the same liquor add the bleaching auxiliaries, and start the bleaching process.

Use the following recipe for full bleach:

AVCO-STABILIZER HSF 0.5 – 1.5 g/l

H₂O₂ (50%) 6.0 – 8.0 cc/l

AVCO-LUX CBA-N 0.5 – 1.0 %

d) Run for 45-60 minutes at 90-95°C, followed by hot and cold rinse.

3. Polyester and blends

AVCO-BLANK DSP can be used in jet dyeing machines as one bath scour/dye auxiliary. A typical cycle for bulked polyester piece goods is as follows:

a) Load the machine, run for 3-5 minutes to remove water soluble and emulsifiable matter and drop the bath.

b) Add a sequestering agent ( AVCO-TRYL HPH) and adjust the bath to pH 5-5.5

c) Raise the temperature to 40°C, add AVCO-BLANK DSP (0.5-1 g/l) and a levelling agent (AVCO-NAL PLD).

d) Increase the temperature to 60°C and add the dyestuffs.

e) After circulating, raise temperature to 125-130°C and dye to shade.

4. Polyamide

AVCO-BLANK DSP can be used effectively for the scour/dyeing of bulked polyamide stockings and other polyamide articles.

Dosage recommendation:

¨ Scour/dyeing bulked polyamide hosiery: Use: 1.0-2.0 g/l

¨ Scour/dyeing micro fibre knits in jet machines: Use: 1.0-2.5 g/l

5. Polyamide blends with spandex/lycra AVCO-BLANK DSP is highly recommended for removing silicone lubricants and knitting oils from polyamide knits containing high percentage of spandex yarns.