Optical Brightener PS-1

Optical Brightener PS-1 is made from optical brightener ER 199,mainly used for polyester and polyester-blended fabrics.

Optical Brightener PS-1(ER-330)

C.I.No.：199

Main ingredient：Stilbene derivative

Specification：

Characteristics:

High whiteness and fluorescence, excellent fastness to light, wash and sublimation.

Application：

For whitening and brightening of polyester and polyester-blended fabrics.

Usage：

Pad-dyeing hot-melt method

Rate of use: 1-3g/L

Process: two-bath two-pad(pick-up rate 70%)→pre-baking(100°C)→baking(180-200°C, 20-30s)

High-temperature exhaust dyeing

PS-1 rate of use: 0.2-0.3%(o.w.f); bath ration: 1:10-30;

Process: 120-130°C, 30-60min→wash→parch→finalize.

PH: 5-10(weak acid bath better)

Packaging & Storage:

Plastic barrel, n.w.25kg or 50kg. Shelf life: 6 months at room temperature.