Die for melt-blowing apparatus
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United States of America Patent
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Mar 17, 1998
Grant Date -
N/A
app pub date -
May 24, 1996
filing date -
May 26, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
A die for melt-blowing apparatus, which has a die body, a nozzle piece, and a lip plate. The nozzle piece is divided into plural temperature-controlling regions in a direction crosswise to a spinning direction. A temperature sensor is used to measure the temperature at a portion surrounding a nozzle orifice in the nozzle piece in each of the divided temperature-controlling regions. A heated gas is applied directly to the nozzle piece for controlling the temperature of the portion surrounding the nozzle orifice to a predetermined temperature. Using this die body, a melt-blown non-woven fabric with a uniform distribution of the weight per unit area can be easily obtained.
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