PTICAL BRIGHTENER AGENT (OBA)EFFICIENCY IN HYP-CONTAINING FINE PAPER
Optical brightening agent (OBA) has been widely used in paper industry as a cost effective way of improving the brightness and whiteness of paper products. The increasing substitution of high-yield pulp (HYP) in the production of fine papers has created challenges for the OBA effectiveness and efficiency. This paper reviews the recent OBA research efforts on HYP-containing uncoated fine paper grades. It focuses on the main factors affecting OBA efficiency in both the wet end and size press processes, including the brightness and whiteness of the pulp furnish, UV competitors, OBA retention, quenching effects and OBA migration at the size press. Some new technologies to improve OBA efficiency are also discussed. Possible future research needs are identified for the purpose of further improving the OBA efficiency of HYP-containing uncoated paper grades.
OBA efficiency, High-Yield Pulp, Fine paper, OBA retention, OBA migration
Hongbin Liu Zhirun Yuan Yonghao Ni Xuejun Zou Yajun Zhou
Tianjin Key Laboratory of Pulp and Paper,Tianjin Univ. of Sci.and Technol.,Tianjin, 300457, China FPInnovations,Pointe Claire, Quebec, Canada Limerick Pulp and Paper Centre, Univ. of New Brunswick,Fredericton,NB,Canada Tembec Inc.,Temiscaming,Quebec, Canada
国际会议
International Mechanical Pulping Conference 2011(2011国际机械浆学术会议)
西安
英文
364-368
2011-06-26（万方平台首次上网日期，不代表论文的发表时间）