Weaving: Conversion of Yarn to Fabric (Merrow technical by P.R. Lord, M.H. Mohamed

By P.R. Lord, M.H. Mohamed

During this publication, the authors think about not just the layout and operation of the loom itself, but additionally the instruction of yarns and applications, the layout and constitution of the materials produced, and the administration elements of weaving as an business approach. A finished reference booklet protecting extensive the fashionable expertise of woven cloth creation. it is going to be of worth of the practitioner and pupil alike. the data supplied will allow the reader to pass judgement on the right way to produce a cloth suited for a specific goal within the reasonably-priced method. The textual content is generously illustrated and there's a thesaurus of phrases that is cross-referenced to the textual content and to an intensive checklist of stated literature. initially released by means of Merrow second variation 1982.

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Additional info for Weaving: Conversion of Yarn to Fabric (Merrow technical library : Textile technology)

Sample text

Spinning frame or on a twister frame. Because this method eliminates the winding process, it does not provide any opportunity for yarn inspection which is usually achieved at the winding stage; consequently, the technique is of diminishing importance. The yarn on the quills has to be conditioned by wetting or steaming before it can be used, as the moisture content affects the character of the yarn and unconditioned yarn will not weave properly. 38 Fitring Winding Staple yarns are commonly rewound after spinning to permit the removal of faults and to provide package sizes suited to the machines available.

5. It must not be affected by wear. 6. It must be easily adjustable. 7. I t must not be affected by the presence of oil or dirt. 8. It must not encourage the collection of dirt and lint. 9. It must be capable of easy cleaning. 10. The operating surfaces must be smooth. 11. It must be inexpensive. Stability of the Package The stability of a package is best defined in terms of its ability to withstand deformation. A packase which disintegrates causes disorder in the yarn which makes it useless and results in excessive wastage.

The choice depending on the yarn motion to be controlled (see Fig. 10). Tension Devices Yarn tension plays an important role in winding. Too high a tension can damage the yarn, whereas too low a tension can lead to unstable packages which will not unwind cleanly. A common fault associated with certain loosely wound packages is their tendency to “slough o r ’ inore than one turn to give a tangle. Variations in yarn tension in different parts of a wound package can cause undesirable effects. For instance, with many man-made fibers, high tension can cause molecular change which affects the dyeability.

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