TABLE OF CONTENTS

Volume 1, Issue 4, Summer 2001
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THE CONFIGURATION OF TEXTILE FIBRES IN STAPLE YARNS

A. Primentas, C. Iype
School of Textile Industries, The University of Leeds

The observation of individual fibres in a mass of fibres becomes possible with the tracer fibre technique. For the microscopic examination of ring-spun yarns containing tracer fibres, the depth of focusing is used as a reference for the fibre location inside the body of the yarns. 3-dimensional configurations of the examined fibres in the yarns are generated by computer graphics. This method will help the researchers who are working in the field of yarn and fabric structural mechanics.

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COMPUTATIONAL MODELING OF MECHANICAL PERFORMANCE IN THERMALLY POINT BONDED NONWOVENS

H. S. Kim and B. Pourdeyhimi
Nonwovens Cooperative Research Center, College of Textiles,
North Carolina State University

Several theoretical models have been proposed in the past for predicting the basic mechanical properties of thermally point bonded nonwovens from structural features of the constituents. However, the role of bond geometry, distribution and related fiber properties were not taken into account. We have developed a mechanics based model to help understand the behavior of point bonded materials as a function of various structural and process variables.

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LINKS BETWEEN DESIGN, PATTERN DEVELOPMENT AND FABRIC BEHAVIOR FOR CLOTHING AND TECHNICAL TEXTILES

Sybille Krzywinski, Hartmut Rödel, Andrea Schenk
Dresden University of Technology, Dresden, Germany

In this paper is shown the necessity for the development powerful 3D CAD-systems for the textile and clothing industry. The connection between 2D CAD-systems with 3D CAD-systems enables the user to prepare a collection more quickly and accurately. Applications could be the drape behavior of fabrics, the deformational behavior of fabrics when covering defined surfaces and also technical textiles.

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PUNCTURE AND TEAR OF WOVEN FABRICS

Dr. Anthony Primentas
Department of Textile Engineering, TEI of Piraeus

The quite often contact of textile goods with sharp objects, results in the puncture and in many cases the tear of the textiles. Thus, the determination of the tearing strength of textile articles occupies a very distinctive position among the various textile quality control tests. The existing device-method presupposes an initial cut in the testing area of the specimen. The lack of a device simulating the accidental combined puncture and tear of a fabric was fulfilled with the development of the apparatus COMPUTE. The impact angle and the mass of the falling puncture tool that causes the tear of the fabrics are the main variables that this apparatus possesses. In this project, the effect of these two variables on the tear propagation length of woven fabrics is investigated.

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