The strange fineness mixed reticulum and manufacturing method and the product null which uses

摘要

PURPOSE: To provide a mixed net-shaped material with different fineness, made of a thermoplastic elastic resin, capable of cutting off vibration, excellent in heat durability, shape retention and cushioning properties, scarcely getting musty and suitable for a cushioning material, its production method and a product made of this net-shaped material. ;CONSTITUTION: This mixed net-shaped material with different fineness, its production method and a product made of this net-shaped material are provided. The mixed net-shape material is composed of a three-dimensional stereoscopic structure formed by using coarse filaments and fine filaments respectively made of a thermoplastic elastic resin in combination, making them turn and twist, bringing them into contact with each other and mutually fusion-bonding most of the contact parts. Both the faces are substantially flat and the apparent density of the net-shaped material is 0.01g/cm³ to 0.2g/cm³. The ratio of the second moment of area of the coarse filament to that of the fine filament is 5 to 500.;COPYRIGHT: (C)1995,JPO