ピッチコントロールの新技術

各種ポリマーによるTMP処理の最適化

抄録

This paper illustrates new experience with efficient polymer applications to control pitch problems. Part of the solution is the development of a new laser-optical method for counting the pitch particles in filtrate of paper stock. Using this method pitch particles are shown to be reduced by additions of cationic polymers. By measuring cationic demand this is found to be due to a neutralization of the anionic charge of the pitch particles. This demonstrates a possibility to separately control the negative influence from pitch particles upon wet end chemistry.