Question 33 (Textile Engineering & Fibre Science)
The property that Kawabata Evaluation System (KES) DOES NOT measure is
| (A) | Shear rigidity |
| (B) | Bending rigidity |
| (C) | Compressional resilience |
| (D) | Tensile strength |
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What is the kawabata evaluation system standard?
The Kawabata Evaluation System, also known as the KES system, is a set of standardized testing methods developed in Japan for the objective evaluation of the physical properties of textiles and other materials. The system was developed by Professor Minoru Kawabata at the Textile Engineering Department of Kyoto University in the 1960s and has since become widely used in the textile industry around the world.
The KES system consists of a series of tests that measure various physical properties of textiles, including stiffness, thickness, elasticity, compressibility, surface friction, and thermal insulation. These tests are conducted using specialized equipment, including a tensile tester, a bending tester, and a compression tester, as well as instruments for measuring surface characteristics and thermal properties.
The results of the tests are evaluated using a set of standard parameters, which have been developed through extensive research and are recognized as industry standards. These parameters allow for the objective comparison of different materials and can be used to predict the performance of textiles in various applications, such as apparel, upholstery, and automotive interiors.
The Kawabata Evaluation System (KES) measures a variety of physical properties of textiles, including:
Fabric stiffness: This property refers to the resistance of a fabric to bending or deformation. It is measured using a KES-FB system.
Fabric thickness: This property refers to the distance between the two surfaces of a fabric. It is measured using a KES-F system.
Fabric shear properties: This property refers to the deformation of a fabric when subjected to shear forces. It is measured using a KES-FB system.
Fabric compressibility: This property refers to the ability of a fabric to be compressed under pressure. It is measured using a KES-FB system.
Fabric surface friction: This property refers to the resistance of a fabric to sliding or rubbing against another surface. It is measured using a KES-FB system.
Fabric drape: This property refers to the way a fabric hangs or drapes when draped over a form. It is measured using a KES-FB system.
Fabric thermal properties: This property refers to the ability of a fabric to retain heat. It is measured using a KES-F system.
Fabric extensibility: This property refers to the ability of a fabric to stretch or elongate under tension. It is measured using a KES-FB system.
Fabric surface appearance: This property refers to the visual appearance of a fabric surface, including characteristics such as glossiness, color, and texture. It is measured using a KES-FB system.
The KES system is a comprehensive tool for evaluating the physical properties of textiles, and its measurements can provide valuable information for textile manufacturers, researchers, and quality control professionals.
The KES system is widely used by textile manufacturers, researchers, and quality control professionals to ensure consistent product quality and to develop new products with desired performance characteristics. It has become an important tool in the textile industry for the objective evaluation and characterization of textile materials.