Optical Brightener Agent BAC-L

CHEMICAL STRUCTURE  Benzimidazol derivative

PROPERTIES

APPLICATION

It's suitable for Optical Brightening Agent for acrylic fabrics and di-acetate fibre. It's for exhaustion and padding,less dosage can get excellent whiteness, the quality is counter of Uvitex BAC-L (Huntsman).

PROCESS METHOD

1. Acrylic fabrics on normal process:

Dosage: OBA BAC 0.2-2.0% o.w.f; Formic acid or acid oxalic

adjusted PH=3.0-4.0;

Temperature: 95-98℃; Time: 30-45min; Bath ratio: 1:10-40

2. Acrylic fabrics on hypochlorite process:

Dosage: OBA BAC 0.2-2.0% o.w.f; NANO3: 1-3 g/l; Formic

acid or acid oxalic adjusted

PH=3.0-4.0; NaCLO2: 1-2 g/l; Temperature: 95-98℃; Time: 30-45

min; Bath ratio: 1:10-40

3. Acrylic & wool blends process:

A. Peroxide bleaching:

Dosage: H2O2(35%): 10-20 ml/l; Sodium phosate: 1-2 g/l. Ciba

Ultravon CN 1-2 g/l adjusted

PH=8-9; Temperature: 50-55℃; Time: 2-3 hours; Bath ratio: 1:10-40

B. Acrylic brightening:

Dosage: OBA BAC: 0.5-2.0% o.w.f; Formic acid or acid oxalic

adjusted PH=3.0-4.0;

Temperature: 95-98℃; Time: 30 min; Bath ratio: 1:10-40

Detailed process is according to customer's request.

STORAGE & PACKING

Sealed in storage, keeping date is 12 months under room temperature.

30kg / 25kg plastic drum or as per customer's request.