Die for a melt blowing process

Details Die for a melt blowing process Die for a melt blowing process

1979-09-14

1981-10-20

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

264 12, 264518, 425141, 425464, D01D 300

Patent

active

042958091

ABSTRACT:
In an improved die-nose assembly for a melt-blowing process wherein molten resin is extruded from a series of die-holes while heated gas is blown out through slots on either side of the die nose associated therewith, spacers which are movable widthwise of the die assembly are provided in the gas slots to provide effective uniformity in the gas streams across the width of the die.

REFERENCES:
patent: 2433000 (1947-12-01), Manning
patent: 3379811 (1968-04-01), Hartmann et al.
patent: 3478389 (1969-11-01), Bradley et al.
patent: 3825379 (1974-07-01), Lohkamp et al.
patent: 3825380 (1974-07-01), Harding et al.
patent: 3836305 (1974-09-01), Grazene
patent: 3970417 (1976-07-01), Page
patent: 4021167 (1977-05-01), Niimi et al.
patent: 4183881 (1980-01-01), Griffin et al.
"Superfine Thermoplastic Fibers", Wente, Ind. Eng. Chem., vol. 48, No. 8, pp. 1342-1346, Aug. 1956.

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