Optcial whitener
| Code | Product name | C.I. |
| 1 | Whitener PF | Brightener 135 |
| 2 | Whitener OB | Brightener 184 |
| 3 | Whitener ER | Brightener 199 |
| 4 | Whitener EB | Brightener 199:1 |
| 5 | Whitener CBS | Brightener 351 |
| 6 | Whitener KCB | Brightener 367 |
| 7 | Whitener KSN | Brightener 368 |
| 8 | Whitener 127 (FP) | Brightener 378 |
| 9 | Whitener OB-1 | Brightener 393 |
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