椅子の張り材と座り心地の関係

Various kinds of upholstered chairs are used appropriately for the purposes and the scenes in the daily life. The seating comfort of the chair is the most important matter. Many factors, such as the texture of seat surface, the width and the height of the chair, the cushioning of the seat surface and the back support, are related to the seating comfort. The upholstering fabric is considered to be an important factor among them. The purpose of this research is to clarify the factors which decide seating comfort by reviewing the mutual relations among seating comfort, the sensory tests and the physical properties of the upholstering materials. The following results were obtained. (1) The warm-cold sense, the softness sense and the sweat sense of handling feel were correlated strongly to the seating comfort. (2) The sweat sense of the seating and handling feel and moisture regain of the upholstering material were not correlated to the seating comfort. (3) The seating comfort can be 90% evaluated in the warm-cold sense and the softness sense of the handling feel by the multi-regression analysis

住宅用建材の吸湿・脱湿挙動と5タイプの部屋の吸脱湿シミュレーション

The water absorption and desorption properties of the building / interior materials are measured by the weight method. In order to control the humidity of the rooms moderately by the materials, the water absorption and desorption abilities of 5 type-rooms which were made of defferent materials were estimated by the simulations, and the following results were obtained. (1) The water regain and the speeds of the absorption/desorption depend on the building / interior materials. (2) The wooden houses have an enough ability to control the humidity of the rooms moderately

断面直径が異なるナイロン6繊維の標準時、湿潤時、浸水時における機械的特性

Mechanical properties measured by tensile test of Nylon6 fibers with various diameters have been examined in standard, wet, and water-immersed conditions. Tensile test in wet condition was performed under JIS L 1030. Tensile test in water-immersed condition was applied to the fibers dipped in water. Diameters of the fibers used for the tests were 2.5 (super micro fiber), 9.1 (micro fiber), 24 and 82μm. An influence of water evaporation to the mechanical properties measured in wet condition has been discussed, compared with those obtained in water-immersed condition

超極細ナイロン6繊維の機械的特性に見られる繊維径の影響

Mechanical properties for four Nylon6 fibers of different diameters have been examined. The diameters of the fibers are 82, 24, 9.1 (micro-fiber), and 2.5(super-micro-fiber)μm. The apparatus for the tensile test has been newly designed for measuring the mechanical properties of the super micro fiber. The breaking forces measured for many super micro fibers have been grouped into those with large and small values. The distribution of the breaking forces has been correlated to the distribution of the diameters. The super micro fiber has finally been clustered into five groups in order to evaluate mechanical properties. The breaking strength, breaking strain and the elastic modulus of super micro fiber at standard state were similar to those at wet

ナイロン-6繊維の水分収着及び拡散挙動に見られる繊維径の影響

Sorption and diffusion properties of water for four Nylon-6 fibers of different diameters have been systematically examined at 25℃. The diameters of the fibers are 82, 24, 9.1 (micro-fiber), and 2.5 (super-micro-fiber) μm. The quartz spring weighing method has been employed for measuring the water sorption to the fibers. The amount of sorbed water has been separated into that absorbed to the volume of non-crystallline part of the fibers and that adsorbed to the surface of the fibers, in order to explain the absorption by the diffusion of water into the fibers. The change in the amount of diffused water with time was described by Fick\u27s second law of diffusion

EVALUATION OF TACTILE SENSATION FOR FABRICS OF VARIOUS FIBER FINENESS

Tactile sensation for four nylon6 satin fabrics of different fiber fineness has been examined. Four grades of fineness of the fibers were employed as 0.74(micro-fiber). 1.4, 4.4, and 56 dtcx. Several tactile adjectives effective to express tactile sensation were selected by means of factor analysis for questionnaire data. The tactile adjectives selected were related to feeling and sense to heat and moisture. The evaluation data for tactile sensation of fabrics were analyzed by paired comparison method using the selected adjectives. It is stressed that the correspondence of tactile sensation to physical properties of the fabrics was observed for fiber fineness of about 1dtex or more. It has been further clarified tin the present work that the micro fiber fabric shows a specific tactile sensation compared with normal fiber fabric

EVALUATION OF TACTILE SENSATION FOR FABRICS OF VARIOUS FIBER FINENESS

Tactile sensation for four nylon6 satin fabrics of different fiber fineness has been examined. Four grades of fineness of the fibers were employed as 0.74(micro-fiber). 1.4, 4.4, and 56 dtcx. Several tactile adjectives effective to express tactile sensation were selected by means of factor analysis for questionnaire data. The tactile adjectives selected were related to feeling and sense to heat and moisture. The evaluation data for tactile sensation of fabrics were analyzed by paired comparison method using the selected adjectives. It is stressed that the correspondence of tactile sensation to physical properties of the fabrics was observed for fiber fineness of about 1dtex or more. It has been further clarified tin the present work that the micro fiber fabric shows a specific tactile sensation compared with normal fiber fabric