Microfiber Nylon Spunbond: Production and Characterization

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Title: Microfiber Nylon Spunbond: Production and Characterization
Author: Vyas, Khyati B.
Advisors: Dr. Stephen Michielsen, Committee Member
Dr. Behnam Pourdeyhimi, Committee Co-Chair
Dr. Trevor Little, Committee Chair
Abstract: The research is to produce and characterize microfiber nylon spunbonds using Sixteen Segmented Pie bicomponent configuration with one of the components as water-soluble polymer. In addition, the entire process of making microfiber nylon spunbond is optimized. The influence of fiber size and the basis weight of the fabrics on ExcevalTM removal process and the properties of nonwoven fabrics at each process are analyzed. Combining aqueous polymer removal with Sixteen Segmented Pie bicomponent fiber cross-section, microfiber spunbond nonwovens of various basis weights and fiber size were produced. The spunbond fabrics of solid Sixteen Segmented Pie bicomponent fibers using Nylon (70%) and ExcevalTM (30%) as alternate components were made, and then fabrics were recalendared at an optimized calendaring condition to increase web integrity and achieve web strength to withstand washing treatment as well as to facilitate ease of ExcevalTM removal. FTIR and SEM were used to verify ExcevalTM removal. As a next step, the recalendared fabrics were processed for the washing treatment to remove water dispersive polymer ExcevalTM from the fabrics without causing damage to the Nylon component and suggestions were made about optimized washing conditions for the removal of ExcevalTM from the fabrics of different basis weight and fiber size. Hydroentangling was carried out for all fabrics to improve strength and aesthetic properties of the washed fabrics. Further, characterization of the fabrics was made using FAST (Fabric Assurance by Simple Testing) system and MTS Sintech tensile tester. Properties of the fabrics including basis weight, tensile strength, elongation, compression, surface thickness, bending and extensibility (%), were analyzed for each process. Additionally, the influence of fiber size (denier per filament) and basis weight of the fabrics on ExcevalTM removal process as well as the fabric properties were studied.
Date: 2006-05-31
Degree: MS
Discipline: Textile and Apparel, Technology and Management
URI: http://www.lib.ncsu.edu/resolver/1840.16/1433

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