Textile Dispersing Agent – Leomine Disperse XPL

Textile Dispersing Agent – Liquid Universal anionic dispersing agent and protective colloid for Disperse and Vat dyes in dyeing processes. Used in manufacture of Disperse and Vat dyes in liquid form.

Chemical Nature : Anionic product based on poly-condensation of an aromatic amine

Features

• Dark Brown Liquid – Suitable for automatic dosing.
• Low salt content.
• Stable to acids, alkalis, electrolytes even at high temperatures.
• Stable at all dilutions. Miscible in cold and hot water in all proportions.
• Leomine Disperse XPL exhibits low viscosity.
• Exhibits no retarding effect on Disperse and VAT dyes.
• In acid liquors Leomine Disperse XPL shows affinity to polyamide fibres like wool and silk.
• Very less tendency to foam.

Benefits

• Leomine Disperse XPL stabilizes dye dispersions.
• Increases quality of dyeing.
• Provides better levelness in dyed material.

Ecology

This textile dispersing agent does not contain APEO / NPEO.

Storage

Leomine Disperse XPL has a shelf life of at least one year if stored in its tightly sealed original packing at temperatures between 5ºC and 35ºC in a dry place. Drums should be tightly resealed each time the material is taken from them and their contents should be used up as soon as possible after they have been opened.

Properties

Appearance: Dark Brown Liquid

Solubility: Approx. 500 ml/l in water.

pH: 7.0 – 9.0

Density: 1.2 – 1.4

Stability

This textile dispersing agent is resistant to acids, alkalis and electrolytes even at high temperatures.

Compatibility

This textile dispersing agent is compatible with anionic and non-ionic auxiliaries. Precipitation may occur if applied along with Cationic products.

Application

Leomine Disperse XPL can be added directly to the dye liquor.

Recommended Dyeing recipes

Disperse dyes :

• Leomine Disperse XPL can be used as dispersing agent in dyeing polyester, cellulose acetate and triacetate with disperse dyes.
• Recommended dosage 1 – 4 ml/l Leomine Disperse XPL.

Disperse dyes usually contain insufficient quantities of dispersing agents as diluents.

The amount of Leomine Disperse XPL required depends on source of the disperse dyes. However adding Leomine Disperse XPL becomes important with liquid dyes that do not contain much dispersing agents, A higher dosage of Leomine Disperse XPL will be required when dyeing is carried out in short liquors in order to ensure a stable dye dispersion throughout the dyeing process. This will overcome the greater risk of dyestuff agglomeration. Leomine Disperse XPL both stabilizes the dye dispersion during the dyeing process and prevents agglomeration of dye particles remaining in the dye bath as it cools down.

Vat dyes :

Stock vat :

• The stability of stock vats can be considerably improved by adding approx.
• 10 – 15 ml/l Leomine Disperse XPL. The product must be added to the dye dispersion before it is vatted.

Jigger dyeing :

• Approx. 4 ml/l Leomine Disperse XPL is added to improve the stability of the dye liquor. The product prevents vat acid stains.

Package dyeing machine or winch dyeing :

• Approx. 2 – 5 ml/l Leomine Disperse XPL is added to prevent precipitation and filtration of the dyes.

Pad-steam process :

• Adding Approx. 6 ml/l Leomine Disperse XPL in the chemical padder prevents agglomeration of dye particles in the liquor. After steaming, Leomine Disperse XPL facilitates removal of the unfixed dye leading to level dyeing. The presence of Leomine Disperse XPL is especially important during the oxidation of vat dyes. It prevents agglomeration and filtration of the newly formed insoluble pigments in the oxidation bath.
• Approx. 1 – 3 ml/l Leomine Disperse XPL

Indigo

Stock vat :

• Adding approx. 2 – 3 ml/l Leomine Disperse XPL to the stock vat formulation increases the dyeing reliability.

Naphthol dyes

• Approx. 2 – 5 ml/l Leomine Disperse XPL is added to stabilize naphthol dye impregnating baths

Washing off prints

Disperse dyes :

• Leomine Disperse XPL is particularly recommended for washing off prints with Disperse dyes on blends of acetate or triacetate with polyamide. It stops the dye from going on to the polyamide component during washing off.
• Application rate: approx. 2 – 5 ml/l

Basic dyes :

• On account of its anionic nature, Leomine Disperse XPL has affinity to cationic dyes and is often added to the wash baths.
• Application rate: approx. 1.5 – 3 ml/l

Safety

When using this product, the information and advice given in our Material Safety Data Sheet should be observed. Due attention should also be given to the precautions necessary for handling chemicals.