Effect of Crystal Melting on Water Vapor Permeability of Shape-Memory Polyurethane Film

Crystal melting of shape memory polyurethane (SMPU) film is investigated using polarizing optical microscopy, scanning electron microscopy, differential scanning calorimetry, and temperature variable wide-angle x-ray diffractometry. Water vapor permeability (wvp) at different temperatures is measured. The results show that the SMPU film i..

Home | News & Info | KOTITI 라이브러리 | 섬유기술정보 I 등록일 : 2012.04.27 I 조회수 : 370

Predicting Clothing Sensory Comfort with Artificial Intelligence Hybrid Models

This paper investigates the process of human psychological perceptions of clothing- related sensations and comfort to develop an intellectual understanding of and method ology for predicting clothing comfort performance from fabric physical properties. Var ious hybrid models are developed using different modeling techniques by studying hu..

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Compressibility of Cotton Blend Perpendicular-Laid Nonwovens

Perpendicular-laid and cross-laid highloft nonwoven fabrics are constructed of cotton, polyester, and bicomponent co-polyester bonding fibers. Kawabata parameters describing the compressional resistance and recovery of these fabrics are measured with a comput erized Q- test instrument. Results are obtained from tests replicated by two ind..

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Heat and Moisture Transfer with Sorption and Phase Change Through Clothing Assemblies: Part I: Experimental Investigation

Part I of this two-part series reports on an experimental investigation of heat and moisture transfer through clothing assemblies consisting of porous fibrous battings sandwiched by inner and outer layers of a thin covering fabric. The experiments are conducted on a novel sweating, guarded hot plate at -20 °C. The temperature and water co..

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Printing Cationized Cotton with Direct Dyes

This paper investigates improved direct dye printing of cotton by cationization. For the cationization, a 100% cotton woven fabric is pretreated with 2,3-epoxypropyltrimethyl ammonium chloride by a cold pad-batch method. All printing conditions are constant, and four different direct dyes are used to print both unmodified and cationized c..

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Mechanical Behavior of Circular Hybrid Braids Under Tensile Loads

In this work, the mechanical behavior of hybrid circular braids without a core under tensile loads is studied experimentally and analytically. A predictive model of the mechanical response of the braids based on the constituent yarn characteristics and machine parameters is developed. The structural geometry of the fabric is analyzed and ..

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Lipid Detergency as Observed by the Quartz Microbalance Method

Removing solid lipids with surfactants in an aqueous solution is observed with a quartz crystal microbalance. The pH of the bathing solution is adjusted to 7.0-12.0 at 25 and 30°C. Concentrations of four anionic and nonionic surfactants vary from far below the CMC to ten times the CMC. The alkalinity of the solution at pH 9.0-12.0 causes ..

Home | News & Info | KOTITI 라이브러리 | 섬유기술정보 I 등록일 : 2012.04.26 I 조회수 : 357

Dynamic Wetting of Fibers Observed in an Environmental Scanning Electron Microscope

Wetting is an important characteristic of textile materials in many applications. Micro scopic observations of dynamic wetting of untreated and oxygen plasma treated polypro pylene fibers on the environmental scanning electron microscope (ESEM) are explored in this study. The relative humidity in the ESEM chamber is raised to 100% by cont..

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Effect of Cellulose Pulp Type on the Mercerizing Behavior and Physical Properties of Lyocell Fibers

Various crimped lyocell fibers are spun from isotropic dopes of cellulose solutions in N- methyl morpholine N-oxide (NMMO) monohydrate with different compositions of hard wood and softwood pulp (IPS lyocell fibers). The physical properties of IPS lyocell fibers treated with NaOH aqueous solutions are compared with those of commercially av..

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Flow Resistance of Textile Materials: Part II: Multifilament Fabrics

Part I of this series presented a new model for predicting the flow resistance of monofilament fabrics. In this part, the model is applied to the flow resistance of multi filament fabrics. Experiments show that flow resistance in multifilament fabrics can be modeled in general, but it appears that the method is not suitable for modeling f..

Home | News & Info | KOTITI 라이브러리 | 섬유기술정보 I 등록일 : 2012.04.25 I 조회수 : 1022