HIGH-TEMPERATURE THERMOFORMABLE NONWOVEN FABRIC FOR THREE-DIMENSIONAL MOLDING AND SOUND ABSORBING MATERIAL USING SAME

HIGH-TEMPERATURE THERMOFORMABLE NONWOVEN FABRIC FOR THREE-DIMENSIONAL MOLDING AND SOUND ABSORBING MATERIAL USING SAME

PROBLEM TO BE SOLVED: To provide a nonwoven fabric for three-dimensional molding having excellent heat resistance, good follow-up properties to the shape of a molded product to be obtained by molding processing and excellent screening properties especially when used as a sound absorbing material. SO...

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Bibliographische Detailangaben
Hauptverfasser: MATSUSHIMA KOSHIN, KIMURA TOMOAKI, HATA KATSUMASA
Format: Patent
Sprache:eng
Schlagworte:
ACOUSTICS
ACOUSTICS NOT OTHERWISE PROVIDED FOR
BRAIDING
COTTON-WOOL
FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS
KNITTING
LACE-MAKING
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL
METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL
MUSICAL INSTRUMENTS
NON-WOVEN FABRICS
PERFORMING OPERATIONS
PHYSICS
SOUND-PRODUCING DEVICES
TEXTILES
TRANSPORTING
TRIMMINGS
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
WADDING
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a nonwoven fabric for three-dimensional molding having excellent heat resistance, good follow-up properties to the shape of a molded product to be obtained by molding processing and excellent screening properties especially when used as a sound absorbing material. SOLUTION: The nonwoven fabric for the three-dimensional molding comprises fibers composed of a mixed polymer of 75-98 mass% of polyethylene terephthalate and 25-2 mass% of a polyolefinic polymer as at least one component. The nonwoven fabric for the three-dimensional molding satisfies (1) to (3): (1) ≤10 μm average fiber diameter, (2) ≥210°C flow starting temperature of the mixed polymer and (3) ≤10% dry heat area shrinkage percentage at 120°C. COPYRIGHT: (C)2004,JPO