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2 Autex Research Journal

2 2003

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Wicking and wetting in textiles

Wiener J., Dejlová P.

Autex Research Journal

2003

Vol. 3, no. 2

64--71

The proposed model is based on the simplified description of the thread structure, and it works with the textile description of thread st ructure. The following textile parameters are used in the model: fineness of fibres, and number of fibres at the cross-section in the bundle and the filling. The formation of the liquid in the longitudinal textile is described in detail, and particular phenomena are discussed. Important parameters are used in the model of wicking. The parameters with very small influence in usual threads are disregarded. The proposed wicking model allows a functional dependence of suction height on the parameters of the fibre bundl e to be expressed in analytical form.

Differences between flax and hemp

Wiener J., Kovačič V., Dejlová P.

Autex Research Journal

2003

Vol. 3, no. 2

58--63

Differentiating flax and hemp is a long-time analytical problem, which is becoming more and more relevant with the wider loading of bast fibres. Flax and hemp are very similar fibres in all aspects, and their differentiation is often controversial. In this work, the literature is researched for the classic methods of differentiating these two types of fibres. Additionally, a further to twist discrimination methods (the twist test method and the method using polarised light) were analysed. The method most suitable for practical use was tested on a wide spectrum of fibres and compared with the usual methods.