作　　者： ; ; ;

机构地区： 山东轻工业学院

出　　处： 《中国造纸》 2004年第10期4-6,共3页

摘　　要： 用EDTA对纸浆手抄片进行不同的处理 ,研究处理后手抄片白度稳定性的变化。研究发现 ,EDTA不仅可提高手抄片的白度 ,还可提高其白度稳定性 ;用浓度 0 3 %的EDTA处理纸浆手抄片效果最佳 ,而用 0 5 %的EDTA喷涂立即干燥后手抄片的返黄改善率比停留 30min后再干燥要大 ;用 0 5 %浓度的EDTA处理不同白度的化机浆P RCAPMP手抄片时 ,初始白度越低 。 Brightness stabilization of handsheets with EDTA solution was investigated.Results showed that both brightness and brightness stabilization of the handsheets treated with EDTA solution were improved; the results of treating with EDTA in 0.3% concentration was the best,and the reversion improvement index of the handsheet was bigger when it was sprayed with EDTA in 0.5% concentration and dried immediately than that dried 30min after spraying.The lower of original brightness,the better of the effect when handsheets of P-RC APMP were treated with EDTA in 0.5% concentration.

关 键 词： 返黄改善率 白度稳定性 返黄

领　　域： [轻工技术与工程]