陽性直接染料染色紙張之研究

A Study of Paper Dyeing with Cationic Direct Dyestuffs

郭蘭生(Lan-Sheng Kuo) ； 藍浩繁(Haw-Farn Lan)

《林產工業》 7卷3期 (1988/09) Pp. 31-43

摘要

陽性直接染料由於染料結構分子帶有陽電前有助於與帶負電荷之纖維素纖維之親和力。於抄造色紙過程中各種化學添加物－上膠劑，增強劑及填料等不僅不會影響陽性直接染料染著纖維之功效，反而有增加染料在級料中之保留。此外，對紙廠慣用各種紙漿之親和性均佳，即使對當合木質素之機械漿其染著力亦不差。另外，尚可望利用惕性直接染料與陰性直接染料併用，即“染料固著染料”之染色技衡，提高染料對紙漿之染著力及減少水汙染。

關鍵字

陽性直接染料 ； 紙染色 ； 染著性 ； 色紙

並列摘要

Comparing to anionic direct dyes-the most common use in paper industry, cationic direct dyes have a strong attraction for most paper fibers i.e., bleached pulps, unbleached pulps, deinked pulps and mechanical pulps. They are positively charged and are attracted by the negative charge of the paper fibers and fillers. Additives-fillers, dry and wet strength agents, sizes and cationic starch when added to pulp containing cationic direct dyes are not only do not cause detrimental effect for the dye exhaustion on fibers but also impart a good affinity to the dyes. In addition to the aforementioned advantageous effect for the cationic direct dyes, dye retention on fibers can be improved by the use of ＂cationic direct dyes fixing on the anionic direct dyes＂ technicques and colored effluents can be reduced.

並列關鍵字

Cationic direct dyes ； Paperdyeing ； Coloring strength ； Colore paper