الفهرس Only 14 pages are availabe for public view
 |  | from | 109 |  |  |
| | | from | 109 | | |
Abstract
Elastic Core yarns have become established In many new application areas. They are used In sports wear, leisure garments and children’s wear, In high quality outer wear, in functional clothes and in technical products.
Core yarn can be either elastic or rigid filament which is covered with natural or synthetic fibres. It is an ingenious idea as elastic or rIgid material can be produced without sacrificing the texture or quality of traditional fibres. This Is study the effect of some core yarn production parameters that affect the quality of seams of the produced fabrics.
Within the research some factors were studied to know their effects on the properties of the produced seams these factors are:
1. Core: sheath ratio.
2. Spindle speed of ring spinning frame.
3. Pressure on the front roller of drafting system
probably why Its use in the textile sector is becoming more and more popular.
Very good dimensional stability, durabilIty, elasticity, good stability under load, wear resistance, simple care and above all a high level of wear comfort are just a few of the attributes that make elastic materials suitable for a wide variety of functions giving rise to a highly dynamic market. The properties of the core yarns depend on the manufacturing parameters. This search aims to study the effect of some .