不織布令浸幾丁聚醣後對吸附染料特性之探討

Investigation of Dye Adsorption of Nonwoven Fabrics Treated with Chitosan

王健瑋(C.W. Wang) ； 張任傑(J.C. Chang) ； 赖政延(C.Y. Lai) ； 黃國雄(G.X. Huang) ； 柯光裕(G.Y. Ke) ； 張志鹏(C.P. Chang)

《華岡紡織期刊》 15卷2期 (2008/06) Pp. 103-111

https://doi.org/10.29984/JHGT.200806.0003

摘要

本研究主要針對經過不同去乙醯化作用之幾丁聚醣處理過後之不織布，對反應性和睦性染料吸附特性的探討。由文獻中可知幾丁聚醣中胺基圍的百分比分布會直接地影響吸附染料的效果，利用苛性生內製造不同去乙醯化度之幾丁聚醣；再將這些不同去乙醯化度作用之幾丁聚醣和不織布處理成幾丁聚醣不織布吸附材料後，探討其吸附反應性染料（CI black 5 和CI red 3），和酸性染料（CI pink 50 和CI orange 10）的效果。結果顯示隨著幾丁聚醣去乙醯化度的提高，對於這兩種類型染料的吸附效果也有顯著的上升。使用去乙醯化度98%的幾丁聚醣含浸不織布吸附材，在經過8天的飽和吸附後，對於兩種反應性染料之吸附效果可達到98%和95%；且對於兩種酸性染料之吸附效果也可達到93%和92%，由此可知去乙醯化程度越高，對染料的吸附效果越好。

關鍵字

去乙醯化度 ； 幾丁聚醣 ； 吸附染料

並列摘要

The present study investigates the inherent adsorption property of nonwoven fabrics alter various degrees of de-acetylation with regard to chitosan, focusing on reactive and acidic dyes. A search of literature shows that the percentage of amino groups in a chitosan will directly affect its adsorption. We attempted to increase various degrees of amino groups of chitosan in acetic acid through caustic soda (NaOH), and the resulting chitosans were subsequently used to treat nonwoven fabrics. The chitosan-nonwoven fabric material was then examined for their ability to adsorb reactive (CI Black 5 and CI Red 3) and acidic (CI Pink 50 and CI Orange 10) dyes. We discovered that degree of de-acetylalion of chitosan significantly enhanced the adsorption of nonwoven fabric in both types of dyes. The adsorptive effect of chitosan on acidic dye follows a sigmoidal trend. The chitosan-nonwoven fabric alter 98% de-acetylation achieved 98% and 95% dye adsorption in reactive dyes; and achieved 93% and 92% dye adsorption in reactive dyes in eight days. The higher the degree of de-acetylation, the better the dye adsorption.

並列關鍵字

de-acetylation ； chitosan ； dye adsorption