| Product name | Optical Brightener CL-L |
| C.I.No. | 191 |
| Appearance | Yellow liquid |
| Ionicity | Anionic |
| Shade | Nautral |
| Performance |
1.Sure for Nylon (Polyamide), good fastness 2.Light fastness is more than 5 grade 3.Good solubility in hypochlorous, seawater, heat resistance |
| Application process | 1.Nylon fibre by Exhausting process Method (A): bleaching by sodium hydrosulfite CL-L 0.5-1.5% o.w.f Detergent agent 0.5-1.0g/L sodium hydrosulfite: 2-3g/L PH: 4-6 (adjust by glacial acetic acid) Temperature :80-130 ℃ 20-30 min. Method (B): leaching by sodium hypochlorite CL-L 0.5-1.5% o.w.f Detergent agent 0.5-1.0g/L sodium nitrate: 2-3g/L sodium hypochlorite: 3-8g/L Complexing Agent: 0.5 – 1.0g/L Temperature :90 ℃ 30-40 min. 2.Nylon fibre by Padding process CL-L 8-30g/L Levelling agent: 1-2g/L Fixing agent: 5-10g/L Temperature : 80-130 ℃ 20-30 min. ration: 80-100%, Parch at ℃105 Packaging: Packaged in plastic drums, 25kg each |
| Packaging | Packaged in plastic drums, 25kg each |