13th ITMA and developments of economic significance

Exhibits from the Paris show are discussed. They include the Sulzer M8300 multi-phase linear-shed air jet loom, the Tsudakoma air jet machine ZAX190, and beam warping machines. Single and multiphase air jet machines will most probably dominate woven fabric production.

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Weaving at ITMA '99

Looms on show in Paris demonstrated the power of the computer in energy area of the manufacturing process. Improvements in warp preparation, warp control mechanisms and fabric design were on display. The main aims of the designers are improved productivity, control, energy consumption, product quality, noise emission and vibration reducti..

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Sewing machine with single-face feed engagement of material

Encouraging results have been obtained in sewing together reinforcing textiles to produce fibre composites. A novel sewing machine has been developed which engages the textile material on one face only and forms a new type of stitch. It is currently being further developed to produce a machine with automatic movement over the material.

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Sewing knitted fabrics

There are two main problem areas when making-up knitted fabrics: thermal and mechanical damage, and seam strength and seam elongation. The choice of sewing thread and needle to help overcome these problems in various types of knitted construction is crucial. Gutermann and Schmetz offer threads and needles specially developed for the task.

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Simulation of drape behaviour of fabrics

In the textile and clothing industries, because of the increasingly individual and customer-oriented production, the sample collections of the firms extend more and more, whereas the quantities for the production decrease. At present, the stage of product development and product preparation of clothes requires approximately three times th..

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Surface roughness and slipping resistance of Shingosen fabrics (Japanese)

We take up the surface roughness and slipping resistance as the tactile parameter to explore the surface properties of Shingosen fabrics to be classified into four groups: Peach Skin (PS), Rayon Dry (RD), New Silky (NS) and Rubbing test (SR), Folded Rubbing test (FR) and Folded Slipping test (FS) were selected, and twenty-two students ass..

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Surface mechanical properties of fabrics in terms of hand: Part I - Shingosen fabrics

A measurement method for surface mechanical properties (especially fricitional properties) of fabrics in the relation with their surface hands has been developed. The effects of the friction probe form, probe velocity, probe weight and the section of suitable parameters representative of frictional properties are in vestigated. The relati..

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Mathematial modelling of 3D and conventional woven fabrics

A mathematical model for simulation of the internal structure of 3D or conventional fabric is developed and incorporated in computer code. The model accounts for yarn crimp, compression and deflections within a fabric structure. The energy principles are used to compute yarn positions. The model allows computation of fabric mass. thicknes..

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ITMA 1999-Machines for the narrow fabric sector (German)

This article documents the important developments on show at ITMA 1999. The firms are featured in alphabetical order, with each of their new machines discussed. Detailed mechanical information is given for many. ITMA '99 was associated with one or two problems for the reporter. Despite two-day metro strikes, great efforts were made to vis..

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A study of optimum production condition for the development of the composite yarns and fabrics for the natural/PET garment

The objectives of this project are to develop attachment of weaving preparatory machinery such as 2-for-1 twister, winder, yarn texturing machinery, twister and composite twister for developing the composite yarns and fabrics for natural/PET garment. In addition, the optimum processing conditions such as yarn tension, guide position, over..

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