Ibyuma bitanga urumuri rw'urumuri rw'izuba (Optical Brightening Agents) birashobora kwinjiza urumuri rwa UV no kurushyira mu rumuri rw'ubururu n'urumuri rwa cyan, ibyo bikaba birwanya gusa urumuri rw'umuhondo ruto ku mwenda ahubwo binatuma urushaho ubwiza. Kubwibyo, kongeramo isabune ya OBA bishobora gutuma ibintu byogejwe bisa neza kandi birushaho kumera neza.
Ku bicuruzwa ubwabyo, kongeramo OBA bishobora kongera cyane ubwiza n'ububengerane bw'isabune yo kumesa imyenda, isabune, n'ibindi, no kunozaisura yayo, kandi ituma ibicuruzwa bisa neza kandi bisukuye.
Iyi ni formula isanzwe y'isabune yo kumesa imyenda:
| Ibikubiyemo | Igipimo |
| LAS | 15-20% |
| Na2CO3 | 20-30% |
| Na2O·nSiO2 | 5-10% |
| 2Na2CO3·Amasaha 32O | 5-10% |
| Umutara w'urumuri w'amatara | 0.1-0.5% |
| Impumuro nziza | 0.1-0.3% |
| Enzyme | 0.5-1% |
Imashini ikoresha urumuriCBS-Xitangwa n'ikigo cyacu igereranywa rwose n'ikirango kizwi cyane cy'i Burayi, mu gihe igiciro cyayo kizaba kiri hasi. Ikoreshwa cyane cyane mu buryo bwo hejuru.amazi y'isabune yo kumesa imyenda, kandi ishobora no gukoreshwa ku cyera cyangwa ibaraisabune y'ubwizaKu bijyanye no kugabanya ikiguzi, dutanga kandi serivisi zo kugabanya ibiciroibicuruzwa ahanini byaifu y'isabune.
Ku bijyanye n'umutekano wa OBA, ubushakashatsi bwinshi bwakozwe mu rwego rw'uburozi mu gihugu no mu mahanga bwagaragaje ko OBA idafite ingaruka ku kanseri, impinduka mu mubiri, cyangwa teratogenicity. Urugero, imiryango nka Minisiteri y'Ubudage ishinzwe ibidukikije, Ishyirahamwe ry'Ubumwe bw'u Burayi rishinzwe kwisiga (AISE), n'Ishyirahamwe ry'Abayapani rishinzwe isuku n'amazi yo kwisiga (JSDA) yakoze isuzuma ryimbitse rya OBA, ryemeza ko ntacyo itwaye ku bantu no ku bidukikije ku gipimo cyagenwe.
Kubwibyo, nta bushakashatsi bwemewe buriho bugaragaza ko OBA itera kanseri. Nubwo bamwe bavuga ko ishobora gutera uburibwe cyangwa allergie ku ruhu, ibi ntabwo bifitanye isano n’uburwayi bwa kanseri kandi bifite umubare muto cyane w’abandura.
Igihe cyo kohereza: Gashyantare-11-2025