Optical Brightener EBF C.I. 185

1.Properties:

Appearance:light yellow evenly dispersed solution

Structure:a compound of bisbenzoxazole thiofuran type

Melting point of the powder crystal:219-221°C

Ionicity:non-ionic

Hue:bluish

2.Applications:

At present,EBF is a whitening agent(Optical Brightener) with blue white shade commonly used for polyester,acetate triacetate fibers Jinglun,polyvinyl chloride fibers and their blends in all stages of process both at home and abroad due to its fastness.The product can also ued for whitening plastics,coatings etc.It is similar to Uvitex EBF made in foreign country.

3.Directions for use and dosage:

EBF is suitable for whitening polyester fabrics or cellulose/polyester blends Fabrics.The product is compatible with high temperature-pressure exhauting-dyeing process,low temperature exhausting & fixing pad dyeing and continuous processes.

Dosage:The high concentrated commercial EBF 0.2-1.0%(O.W.f)

4.Specifications:

Item Indices

Appearance     light yellow dispersed solution

Whitening intensity 100%,200%

Hue  approximate to the standard agent

Granule fineness of powder (number of granules having sizes≥4um) ≤3

5.Packaging and storing:

Packaged in plastic barrels,25kg or 50kg each.Stored in room at a temperature over 0°C.