Main ingredient 
                    Stilbene derivative  
                    Specification 
                    
                      
                        Appearance  | 
                        light yellow dispersion  | 
                       
                      
                        Ionicity  | 
                        non-ionic  | 
                       
                      
                        Shade  | 
                        blue  | 
                       
                      
                        Solubility  | 
                        dispersible in water  | 
                       
                      
                        pH (1% aq. sol.)  | 
                        5.0-7.0  | 
                       
                      
                        Active content  | 
                        ≥20.0%  | 
                       
                     
                    Characteristics 
                    for whitenning and brightenning of polyester and polyester-blended fabrics. High whiteness and fluorescence, excellent fastness to light, wash and sublimation.  
                    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)  
                    Note: Scouring is need. pH must be below 8. 
                    .High-temperature exhaust dyeing  
                    PS-2000 0.2-0.3%(o.w.f);bath ration: 1: 10-30;dyeing temperature: 120-130°C, 30-60min; 
                    pH: 5-10 (optimum at 5.0-7.0)  
                    Packaging & Storage 
                    Plastic barrel, n.w. 25kg or 50kg. Shelf life: 6 months at room temperature.  |