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首页> 外文期刊>Journal of Applied Polymer Science >Dyeability of cellulose fibers using dyestuff from African rosewood (Pterocarpus erinaceous)
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Dyeability of cellulose fibers using dyestuff from African rosewood (Pterocarpus erinaceous)

机译：使用非洲花梨木（紫檀）的染料对纤维素纤维的染色性

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Methanol extracted from the "heart wood" of the plant Pterocarpus erinaceous (African rosewood) gave a brick red dyestuff. Chromatographic separation of the dye produced a single homogenous component with an Rf value of 0.78, a yield of about 17.3% and a melting point of 86 degrees C. IR spectrum of the purified dye showed the presence of an aromatic C=C double bond band at 1620-1470 cm(-1) and NH2 absorption characteristic of an aromatic amine N-H stretch at 3590-3400 cm(-1), while para-disubstitution on aromatic nucleus was observed at 850-840 cm(-1). A wavelength of maximum absorbance, lambda(max), of 500 nm was recorded on a UV/visible scan for the solvent soluble dye. The dye, which was substantive to cotton, was applied quantitatively to it and reed fibers by exhaust dyeing technique from locally distilled alcohol. (C) 2000 John Wiley & Sons, Inc. [References: 8]
机译：从植物紫檀（非洲玫瑰木）的“心材”中提取的甲醇产生了砖红色染料。染料的色谱分离产生Rf值为0.78，产率约为17.3％且熔点为86℃的单一均匀成分。纯化的染料的红外光谱表明存在芳族C = C双键带在1620-1470 cm（-1）和NH2吸收特性的芳香胺NH在3590-3400 cm（-1）拉伸，而在芳香核上的对二取代在850-840 cm（-1）观察到。在UV /可见光扫描中记录了溶剂可溶染料的最大吸收波长λ（max）为500 nm。通过排气染色技术，从局部蒸馏的酒精中，将对棉构成实质性的染料定量地应用于棉和芦苇纤维。 （C）2000 John Wiley＆Sons，Inc. [参考：8]

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