Source: Dissertation Abstracts International, Volume: 37-12, Section: B, page: 6295. / Thesis (Ph.D.)--The Florida State University, 1976.

Source: Dissertation Abstracts International, Volume: 38-04, Section: B, page: 1853. / Thesis (Ph.D.)--The Florida State University, 1976.

No description available.

Drape is a fabric characteristic defined as a fabric's ability to hang gracefully. Occasionally problems in garment drape occur affecting a garment's final appearance. Undesirable garment drape often occurs because of the manufacturer's desire to save fabric by positioning patterns more closely in the marker. This study was designed to investigate apparel industry specifications affecting the resultant drape of garments, and to subjectively and objectively measure the relationship of grain alignment to fabric and garment drape. / A mailed, random national survey of 990 apparel manufacturers was conducted. Data from 70 surveys were analyzed. Fifty-two respondents made markers at the surveyed establishment, and twenty-three of these tilted patterns off-grain in their markers. / Data obtained from the survey were utilized to establish tilt values for quantitative analysis of fabric drape and shear properties. Twelve tilt combinations were examined. No significant differences were found between the drape coefficients of control drape samples and those with tilt variations. Generally, all three shear values increased as tilt angles increased across all fabrics. Bending and shearing properties were significantly correlated with each other, but not with drape coefficient values. / Subjective evaluations of fabric and garment drape were conducted. Twenty-one apparel design students participated in the study by evaluating fabrics draped on a pedestal and skirts constructed in each tilt variation. Fabric drape amount was more highly correlated with the drape coefficient than was drape preference. Students were unable to correctly evaluate off-grain skirts consistently. / Source: Dissertation Abstracts International, Volume: 55-08, Section: B, page: 3269. / Major Professor: Mary Ann Moore. / Thesis (Ph.D.)--The Florida State University, 1994.

It is known that not all polymers can be melted and extruded to form polymer fibers. Electrospinning process involves a direct method to produce fibers in nanometer range by dissolving the polymer in solvent(s) to form the spinning solution. In this work, the spinning solution was prepared by dissolving Poly (ethylene terephthalate) polymer in triflouroacetic acid and methylene chloride. Charging the solution to a very high potential initiated the process to produce electrospun fibers. With increasing voltage, a critical point is reached and a charged jet of the solution is ejected. As this charged jet moves in the air, the solvent evaporates, leaving behind a charged polymer fiber that collects on a targeted source (rotating drum). Equipment to form electrospun fiberwebs on a rotating drum was designed and successfully built. The equipment for this process is relatively simple and small since this process lend itself to the production of fibers/fiberwebs from small quantity of polymer solution. An experiment was designed to investigate the influence of polymer concentration in the spinning solution and the electric field level on fiber and fiberweb response of interest.<br>Electrospun fibers and fiberwebs were characterized for fiber diameter and its distribution, orientation distribution function, and pore size and its distribution. The results showed that an increase in the electric field resulted in a decrease of the average diameter of the electrospun fibers. It has also been observed that there was concentration/electric field interaction effect on fiber diameter. As the electric field increased keeping polymeric concentration constant, the fibers orientation in machine direction increased. It was observed that as the electric field was increased, the average pore diameter decreased. The decrease in average pore size with increase in electric field was explained in terms of fiber diameter as well as fiberweb structural parameters (orientation and basis weight).

Running continues to be one of the more popular sports enjoyed by all ages. Regardless of the popularity of the sport, limited research currently exists to quantify the apparel purchase behavior of runners. This research studied variables that influenced purchase intentions of runners at different levels of involvement. The runners were categorized by the dualistic theory of passion, and their purchase intentions toward apparel brands for running were investigated from the self-congruity perspective. Runners completed an online survey that provided comprehensive information on their running behavior and their past and future apparel purchases. Exploratory factor analysis was used to investigate the dualistic theory of passion and self-congruity theory on the running population. Four variables were found to be important predictors of purchase intentions for all runners: Self-Image Congruence, Function, Aesthetic, and Technology Appeal. Further, logistic regression was used to determine which variables significantly influenced purchase intentions of runners in each category. Based on the findings, a theoretical framework was proposed. This study concluded that functional attributes of running apparel influence runnersâ purchase intentions.

This study identifies how an electronic journal can be established and implemented in the textile and apparel field. The study considers, <a href="http://www.tx.ncsu.edu/jtatm"> Journal of Textile & Apparel Technology & Management </a>as an innovation in the textile and apparel field, and analyzes electronic media as a way of disseminating information to scholarly and industrial communities in a better way. This study documented the process of establishing the electronic journal, and also provides the importance of a feedback loop to provide inputs for future journals. The readership behavior of the journal, including unique visits, repetitive visits, hits (page impressions), geographic location of the readers/visitors, entry page, was examined with the help of log files collected from College of Textiles and Sitestats, a UK based company. Issue analysis (volume 1, issues 1-4, volume 2, issue 1) was compared with previous issues and the results were related to Rogers? Model of the Innovation-Decision process (1995) and proved that JTATM is an innovation in the textile and apparel field.

The purpose of this research is to understand, define and map the weave-room performance decision-making process, and to develop an Information Engineering methodology for studying and analyzing decision-making processes in textile manufacturing departments. A preliminary Decision Cycle Model was developed using knowledge management principles, resulting in a definition of Information Engineering, which was ?a technique for extracting the meaning contained in the information so as to allow the understanding needed by the user to make an informed decision?. A case study approach, in conjunction with a process-modeling tool called IDEF0, belonging to the IDEF (Integrated Definition language) family of modeling techniques, has been used. Case studies were conducted at three weaving plants, resulting in the development of the three AS-IS models. These case studies provided the framework to compare with, and become the underlying basis for, the proposed Best Practices TO-BE model of the weave-room performance decision-making process. Additionally, both the AS-IS and TO-BE models lead to the development of ten key performance-improving tasks that could potentially assist in enhancing the decision process as well as providing the background for analyzing the usability of IDEF0 as an effective process-mapping tool, by means of a SWOT analysis. Finally, a generic Information Engineering methodology was developed that could be used for mapping manufacturing-related decisions. The research deliverables resulting from the Information Engineering methodology would eventually lead to the development and creation of a kind of Digital Decision Dashboard (D3), which could potentially prove to be a valuable tool for decision-making in textiles, thus addressing a critical need presently facing the textile industry.

The body of this research seeks to create an Industry Technology Roadmap for one segment of the U.S. textile and apparel industry, specifically, the flushable pre-moistened wipes industry. Industry Technology Roadmapping is a new type of strategic planning method. Previous technology forecasting methods allowed planners to identify several alternate future states or scenarios and provided uncertainty in either product needs or technological developments. In contrast, Industry Technology Roadmapping allows a company or an industry to proactively plan and prepare for its future by offering future goals, critical requirements and, finally, solutions to achieve the future goals. In addition, Roadmapping works as an effective organizational learning and knowledge creation tool and induces collaboration and new partnerships among companies as well. Currently, flushable pre-moistened nonwoven wipes emerge as new textile products and attempt to expand their future markets. During this research, industry expert interviews and surveys, consumer surveys, heavy user surveys, creation of an Internet blog, and literature review including a patent analysis were conducted for data gathering. The resulting Roadmap provides the nonwoven wipes industry valuable information about the potential future markets, required properties, the current environment of flushable wipes, including challenges, strength, and opportunities, and the solutions. These can help the U.S. nonwoven wipes industry to do informed investment into research, development and manufacturing facilities.

Dimensional stability of tufted carpets has been a continuing problem in the industry for years. When a tufted carpet is installed by the stretch method, it experiences stress relaxation over time which can cause the carpet to buckle, wrinkle and become loose with the only option being a costly re-stretching of the carpet. Since woven carpets seldom require re-stretching, the carpet buckling problem seems to be linked primarily to the tufted construction. This research seeks to analyze the various components of the tufted carpet composite structure and identify the role each component plays in the phenomenon of stress relaxation. Since a carpet is always stretched in both dimensions simultaneously during installation, understanding its biaxial stress decay is important. To this end, a biaxial loading system has been used to test various samples of the primary backing alone (before tufting), primary backing after tufting (with tufts), the secondary backing alone, and the finished carpet after attaching the backings with various binder weights per area. The four variables under consideration include: primary and secondary backing constructions, tufting density, and latex weight, with the secondary backing and latex weight expected to have the greatest effects on stress decay. In order to collect the most information, the biaxial test system was connected to a computer-based data acquisition system to continuously monitor stress levels and generate stress relaxation curves over a 20-hour testing period. A viscoelastic model that included representations of each component in the carpet structure was used to analyze and understand the influence of the components on the stress relaxation of carpets.