摘要
根据混合办公废纸脱墨浆抗张强度、白度和尘埃度3个指标，得到优化的纤维素酶脱墨工艺：酶用量1．2U·g-1，酶处理时间15min，浆浓度9％，温度55～60℃，碎浆时间8min，乳化剂用量O．05％，pH4．5～5。通过对浆料脱墨前后的性能比较分析，发现纤维素酶不仅能有效去除附着在纤维表面的油墨粒子。
The cellulase was introduced to MOW deinking, the effect of enzyme treatment temperature, pH, enzyme dosage, deinking agent dosage, reaction time on brightness, eric, tensile index and tear index were also studied. The optimized deinking conditions were ceUulase dosage 1.2 U＇g 1, treatment time 15 rain, pulp concentration 9%, temperature 55-60℃, pulping time 8 rain, C）P dosage 0.05%. pH 4.5-5. The comparison results of pulp properties before and after enzyme deinking declared that cellulase removed ink particles effectively from fiber surface meanwhile it also to some extent degraded fiber.
出处
《纸和造纸》
北大核心
2014年第1期4-7,共4页
Paper and Paper Making
基金
二次纤维薄页包装纸生产中酶处理关键技术引进(国家林业局948项目
2012-4-1)
高速纸机上二次纤维生产高档薄页包装纸的研究(福建省高校产学合作科技重大项目
2011H6003)
高速纸机上化学机械浆配抄壁纸原纸的研发(福建省高校产学合作科技重大项目
2012H6004)
关键词
纤维素酶
混合办公废纸
脱墨
脱墨浆性能
cellulase
mixed office wastepaper
deinking
deinked pulp property
