Complaint
This product is used for whitening wool, natural silk, nylon, acetate fiber and triacetate fiber. It can also be used for whitening cotton, cellulose fibers and acrylic fibers. The dosage is 0.05% to 2.0%. Adding it to synthetic laundry detergent for washing fabrics can improve the appearance whiteness of fabrics after washing.
Optical Brightener Swn Specification:
| Product Cate | Optical Brightening Agent For Wool |
| Product Name | Optical Brightening Agent SWN |
| Chemical Name | 2.2'-(4.4'-diphenol vinyl) dibenzoxazol |
| CAS No. | 91-44-1 |
| C.I. No. | 140 |
| Molecular Formula | C14H17NO2 |
| Molecular Weight | 414 |
| Technical Index | Appearance: white crystal powder Shade: blue Purity: 98.5% Melting point: 68.5-72.0ºC Ash content: 0.15% max Solubility: soluble in acid water, ethanol, and other organic solvents |
| Uses | Whitening for wool, silk, nylon, acetic acid, and triacetate fibers. Whitening for cotton, cellulose, and acrylic fibers. The dosage ranged from 0.05% to 2.0%. Added to synthetic detergent powder used in washing fabrics. |
