Breathable structural web and breathable structural web-forming apparatus
OwnerChen-Cheng Huang, Pao-Hao Huang +1inventors
InventorsChen-Cheng Huang, Pao-Hao Huang, Pao-Han Huang
Life of this patent
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Abstract
A breathable structural web includes a layered structure having at least a layer of a non-woven material. The layered structure includes a base layer portion that has opposite first and second sides, a plurality of hollow protrusions that are disposed at the first side and that protrude and that are tapered from the base layer portion in a first direction, and a plurality of indented portions that are disposed at the second side, that extend from the base layer portion in a second direction opposite to the first direction, and that respectively define a plurality of recesses which open in the first direction. The hollow protrusions are scattered among the indented portions.
Claims5
A breathable structural web-forming apparatus comprising:
- a first rotary member defining a first rotation axis and rotatable about the first rotation axis;
- a first screen mold supported on said first rotary member and co-rotatable with said first rotary member, said first screen mold including a first screen body and a plurality of first tapered projections, said first screen body having first and second sides and a plurality of first screen holes, said first tapered projections protruding and being tapered from said first side of said first screen body;
- a spinneret that is disposed adjacent to said first side of said first screen body and opposite to said second side of said first screen body, and that is configured to discharge molten fibers toward said first side of said first screen body;
- and
- a suction box that is disposed adjacent to said second side of said first screen body and opposite to said first side of said first screen body, and that is configured to draw the molten fibers to fit into said screen holes,
- wherein said first screen mold further includes a plurality of conical protuberances that extend and that are tapered from said second side of said first screen body beyond said first side of said first screen body.
Dependencies are inferred from the claim text.