Abacá (Musa textilis) grades and their properties—A study of reproducible fibre characterization and a critical evaluation of existing grading systems
Abacá (Musa textilis) grades and their properties—A study of reproducible fibre characterization and a critical evaluation of existing grading systems
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蕉麻（Musa textilis）等级及其特性——可再现纤维表征的研究和对现有分级系统的严格评估
DOI：
10.1016/j.indcrop.2012.06.025
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
J. Müssig
中科院分区：
文献类型：
--
作者：
Stephan Richter;Kathrin Stromann;J. Müssig
研究的主要目的是调查香蕉纤维束的拉伸性能以及纤维束质量如何取决于分级。为此，所有市场相关的abacá等级都是通过预算定价方法确定的，包括拉伸性能，纤维束宽度和颜色，以确保出色的再现性。人们发现，经典的分级目视检查只适用于手剥纤维束。近似地，纤维束宽度从优级到残级增加，而抗拉强度降低。这是不正确的纺锤剥离的纤维束，在整个分级范围内几乎相等的抗拉强度。结果发现，刀齿数（两种提取方法的主要区别）对阿巴卡质量有显著影响。此外，纤维束的CIELab值a*（红色指示器）取决于它们在假茎中的位置。我们假设位置依赖的颜色变化是基于木质化的逐渐变化。可以证明，颜色（CIELab系统）和纤维束宽度（Fibrape系统）的自动化鉴定对阿巴卡分级非常有益。
The primary objective of the study was the investigation of the tensile properties of abacá (Musa textilis) fibre bundles and how the fibre bundle quality depends on the grading. For this purpose all market relevant abacá grades were determined regarding to tensile properties, fibre bundle width, and colour by budget priced methods that guarantee an excellent reproducibility. It was found that the classical grading by visual inspection is only applicable for hand-stripped fibre bundles. In approximation, the fibre bundle width increased from the excellent grades to the residual grades while the tensile strength decreased. This was not true for spindle-stripped fibre bundles that had almost equal tensile strengths over the whole grading range. It was found that the knife serration number (a main dissimilarity of the two extraction methods) influenced the abacá quality significantly. Moreover, the CIELab-value a* (redness indicator) of the fibre bundles depends on their position in the pseudostem. We hypothesized that the position dependent colour change is based on a gradual change in lignification. It could be shown that an automated qualification of the colour (CIELab-system) and the fibre bundle width (Fibreshape-system) could be a great benefit for the abacá grading.