Melt blowing highly oriented fibers

A thermoplastic condensation polymer is melt blown at an initial velocity of 150 to 300 m/s at a temperature which is less than 50 DEG C above its crystalline melting point and at which the molten polymer has an apparent melt viscosity of less than 50 poise. The melt blown fibers are collected to fo...

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Bibliographic Details
Main Author ECKHARD C A SCHWARZ
Format Patent
LanguageEnglish
Published 15.02.1984
Subjects
BRAIDING
COTTON-WOOL
ELECTRICITY
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
NON-WOVEN FABRICS
TEXTILES
TRIMMINGS
WADDING
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Summary:A thermoplastic condensation polymer is melt blown at an initial velocity of 150 to 300 m/s at a temperature which is less than 50 DEG C above its crystalline melting point and at which the molten polymer has an apparent melt viscosity of less than 50 poise. The melt blown fibers are collected to form a non-woven web, e.g. while being contacted with hot air heating the fibers to 70-265 DEG C. A suitable apparatus is shown.
Bibliography:Application Number: GB19830015616