天然环烯醚萜与蛋白质纤维的呈色、交联反应特性(Ⅱ)——4种天然环烯醚萜对甲胺和蛋白质纤维的呈色规律及其机理  

Coloring/Cross-linking Properties of Natural Irioids with Protein Fibers (Ⅱ):color-forming rules and mechanism of methylamine and protein fibers dyed by four natural iridoids

作　　者：陈劲松[1] 赵晓娟[1] 张宝芹[1] 丁克毅[1] 

机构地区：[1]西南民族大学化学与环境保护工程学院,四川成都610041

出　　处：《中国皮革》2010年第17期13-17,共5页China Leather

基　　金：国家自然科学基金资助(批准号:20876126)

摘　　要：研究了京尼平、马钱素苷元、橄榄苦苷苷元、E-6-O-香豆酰鸡屎藤次苷甲酯苷元4种天然环烯醚萜化合物,与甲胺和3种蛋白质纤维的呈色反应规律,并分析了其呈色机理。结果表明:环烯醚萜与甲胺反应时,在最终色素生成之前,有一系列的中间产物生成。将京尼平和橄榄苦苷元分别与甲胺形成的色素按不同比例复配,所得混合色素的颜色与经典的减色配色原理吻合;但当京尼平与橄榄苦苷苷元以不同比例与甲胺同浴呈色时,所得色素颜色不符合经典减色配色原理。4种环烯醚萜苷元对3种蛋白质纤维的染色结果表明:每种环烯醚萜与蛋白质纤维生成的颜色,与其和甲胺所生成的颜色一致,这表明环烯醚萜的结构是呈色反应的决定因素。用京尼平和橄榄苦苷苷元按不同比例对皮粉进行复配,呈色的结果表明:分步呈色时,所得颜色与经典的减色配色原理吻合;同浴呈色时,所得颜色不符合经典减色配色原理。Color - forming rules and mechanism of methylamine and protein fibers dyed by four iridoids, genipin, loganin aglycone, oleuropein aglycone and E - 6 - 0 - methoxycinnamoyl scandoside methyl ester aglycone were studied. The results show that,during the iridoids and methylamine reaction, before the formation of final pigments, intermediates are formed. A continuous color change following classical color- matching principles is observed when the pigments formed by genipin and oleuropein aglycone reacted individually with methylamine are mixed. However, when genipin and oleuropein aglycone react simultaneously with methylamine, the situation is different. The results of single dyeing and combination dyeing of protein fibers show that color of the dyed protein is the same as that formed by each iridoid with methylamine. This means that the structure of iridoid is the dominant factor for the color - forming process. The classical color - matching principle would be observed when two iridoids are applied to dye protein fibers separately. However, during simultaneous combination dyeing, the classical color - matching principle is not observed.

关 键 词：环烯醚萜 甲胺 蛋白质纤维 天然活性染料 配色规律 

分 类 号：TS513[轻工技术与工程—皮革化学与工程]