Textile Whitening Agent – Leomine Whitener TCI

Textile whitening agent – Fluorescent Whitening Agent for polyester-cellulosic, polyamide and polyamide-cellulosic blends in all ratios. Recommended for exhaust process.

Chemical Nature : Mixture of Stilbene derivative, anionic

Features

• Bluish Liquid dispersion.
• Imparts Bluish Violet tint depending on application rates
• Miscible in water in all proportions
• Stable to oxidizing agents
• Stable at all dilutions
• Very less tendency to foam

Benefits

• Leomine Whitener TCI is a stable dispersion
• High Yield Fluorescent Whitening agent.
• Desired effects achieved with addition of small quantities of Leomine Whitener TCI
• Exhibits excellent whiteness with a slightly bluish violet tone
• Exhibits good dispersion and re-dispersion properties
• Exhibits good light fastness
• Exhibits good washing, perspiration and dry cleaning fastness
• Good affinity at boil without a carrier up to application rate of 1.5%
• Degree of whiteness not affected by pH in the range 4 to 12

Ecology

This textile whitening agent does not contain APEO / NPEO.

Storage

Leomine Whitener TCI has a shelf life of atleast 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. Do not expose to direct sunlight.

Properties

Appearance: Bluish-grey liquid

Solubility: Freely soluble in water

pH: 7 – 9

Density: 1.06 g/cm³

Ionicity: Anionic

Stability

This textile whitening agent has tendency to settle on prolonged storage but can be easily re-dispersed by stirring.

Compatibility

This textile whitening agent is compatible with anionic and nonionic auxiliaries.

Application

This textile whitening agent should be thoroughly stirred before application

Recommended application recipes

PES / CO 65/35 Exhaust Process:

• 0.5 – 1.5% Leomine Whitener TCI
• 0.5 – 1 g/1 Leomine Disperse XPD
• pH 5 – 6 Leomine Buffer PAB
• Liquor ratio 5:1 to 20:1
• Initial temperature : 50-60 ºC
• Heat up to 130 ºC in 30 min
• 15-20 min at 130 ºC
• Dry

The addition of Leomine Disperse XPD is particularly necessary in the fluorescent brightening of wound packages.

PES / CO 65/35 One step bleaching and brightening Exhaust Process :

• 0.5 – 1.5% Leomine Whitener TCI
• 4 ml/l Hydrogen Peroxide 50%
• 1 gpl Caustic Soda
• 1 gpl Leomine Wash Jet DBJ
• 1 gpl Leomine Stabilizer PSL
• Liquor ratio 5:1 to 20:1
• 60 minutes at 98 ºC
• Rinse and dry

Safety

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