Ngwa anya ihie
Ezubere Optical Brightener Agent iji mee ka ọ dị mma ma ọ bụ welie ọdịdị nke mkpuchi, nrapado na akwa mmiri na-eme ka mmetụta "na-acha ọcha" ma ọ bụ na-ekpuchi yellowing.
Ndepụta ngwaahịa ：
| Aha ngwaahịa | Ngwa |
| Ngwa anya Brightener OB | Mgbaze dabere na mkpuchi, agba, inks |
| Ngwa anya Brightener DB-X | A na-ejikarị ya eme ihe na mmiri, ágbá, inks wdg |
| Ngwa anya Brightener DB-T | Mmiri na-acha ọcha na pastel-tone agba, uwe mkpuchi doro anya, overprint varnishes na adhesives na sealan, |
| Ngwa anya Brightener DB-H | A na-ejikarị ya eme ihe na mmiri, ágbá, inks wdg |
Dee ozi gị ebe a ma zitere anyị ya
