Weaving

Analysis of loom stoppages in-plant study showed that the loom stoppages in air jet and water jet weaving are significantly affected by the fabric construction parameters represented by a dimensionless parameter namely fabric degree of tightness.ý The work proved that the obtain constant weaving efficiency loom speed has to be decreased with the fabric tightness.ý At constant loom speed the weaving efficiency decreases with fabric tightness.

Knitting

Dynamic of relative knitting individual sinkers located at different positions in the cylinder of a relative weft knitting machine were instrumented to measure the dynamic knitting forces. Force data were collected by interfacing the instrumented sinkers to data acquisition system. Systematic investigation of the dynamic forces in terms of knitting parameters and knit fabric parameters was conducted.

Carding Dynamic

In this study the role played by fiber properties and machine variables in governing the fiber distribution in machine and cross directions on cards were examined. In order to understand and rationalize the fiber dynamics, experimental and theoretical models were developed. Key parameters which characterize dynamic properties of fiber movement were found to be fiber loadings on card elements, transfer efficiency from cylinder to doffer, collecting power of workers or flats, and diffusion coefficient of the fiber in the transverse direction on carding elements. A novel IR-based on-line sensing device and a data acquisition/analysis system were designed and implemented to assess fiber loading and its uniformity on card elements.

Needlepunching

The project is aimed at evaluating needlepunching process through developing a method for measuring the dynamic forces experienced by individual needles in a filled needle board during needlepunching at today's high speed and relating these to processing parameters and fiberweb variables. A full instrumentation to measure, acquire and analyze the forces acting on individual needles at different location in the needle board during needlepunching was developed. the capabilities and usefulness of the instrument for machine makers, needle makers and needlepunched fabrics manufacturers were demonstrated.

Dr. Seyam has been in the faculty of the Department of Textile and Apparel Management at NCSU College of Textiles since 1991. He has also been an Instructor at both Alexandria University and Mansoura University, Egypt, and a Research Engineer for Burlington Industries, North Carolina, and a Project Manager for Valdese Textiles in Valdese, North Carolina.

Dr. Seyam teaches fabric formation and structures at the undergraduate and graduate levels. He teaches short courses in advanced woven fabric design, nonwovens and new developments in weaving technologies. Since he joined NCSU, Dr. Seyam has mentored 25 Master's and 13 Doctoral, and hosted nine international Post-Doctoral, Visiting Scholars, and Trainees. He has published (60+ papers and one patent) and presented (50+ conference, in-plant, and invited presentations) extensively in the area of fabric formation and structure.  He authored two user friendly computer software packages for manufacturing and engineering woven structures.

From 1991 to 1999 he established three areas of research: Mechanics of Woven Fabrics, Carding Dynamics, and Needlepunch Process and Products. Currently he is exploring new research areas in direct garment manufacturing using meltblown technology, micromachines in textiles, and integrating electronic components in smart textile structures.