Menentukan Optimum Dosis Penggunaan Wet End Oba (Optical Brightenic Agent) Te…

ABSTRACT Optical Brightenic Agent (OBA) is a compound that can give a light effect to an object that is exposed to light, so that the object will be whiter and luminous. Utilization of OBA at PT RAPP is used as an auxiliary material in achieving paper optical properties that comply with specified standards. OBA consists of three types, namely disulpho (wet end), tetrasulpho, and hexasulpho…