A na-akpọkwa ndị na-egbuke egbuke anya dị ka ihe na-egbuke egbuke anya ma ọ bụ ihe na-acha ọcha fluorescent. Ndị a bụ ogige kemịkalụ na-enweta ìhè na mpaghara ultraviolet nke electromagnetic spectrum; ndị a na-atụgharị ọkụ na mpaghara acha anụnụ anụnụ site n'enyemaka nke fluorescence
Optical brightener OB nwere ezigbo nguzogide okpomọkụ; elu chemical nkwụsi ike; ma nwee ezigbo ndakọrịta n'etiti resin dị iche iche.
Optical brightener OB-1 bụ ihe na-arụ ọrụ nke ọma maka eriri polyester, a na-ejikwa ya na ABS, PS, HIPS, PC, PP, PE, Eva, PVC siri ike na plastik ndị ọzọ. Ọ nwere njiri mara mma ịcha ọcha, ezigbo nkwụsi ike thermal wdg.