Device for manufacturing polyethylene terephthalate melt blown fiber web and manufacturing method using the same

A device for manufacturing a PET melt blown fiber web comprising:

• an extruder that melts and extrudes a PET resin;
• a die that receives a molten resin extruded from the extruder to spin an ultra-fined PET melt blown fiber in a self-weight direction;
• a forming table that is provided to be spaced below the die to collect and aggregate the PET melt blown fiber and to form a PET melt blown fiber web;
• a winder that winds the PET melt blown fiber web;
• and a blending nozzle for blending a PET short fiber to the PET melt blown fiber spun toward the forming table,
• wherein the device for manufacturing the PET melt blown fiber web comprises:
• a heat treatment machine that presses and heat-treats the PET melt blown fiber web formed on the forming table,
• wherein the heat treatment machine comprises:
• a porous pressure belt that presses the PET melt blown fiber web toward the forming table and transfers the PET melt blown fiber web to the winder side together with a porous circulation belt of the forming table;
• a hot air supply chamber that supplies high-temperature hot air to the PET melt blown fiber web to crystallize the PET melt blown fiber web that is pressed and transferred by the porous pressure belt;
• and
• a height control means that controls the height of the porous pressure belt for pressing the PET melt blown fiber web.