Double-layered foamed paper container and manufacturing method thereof
OwnerChing-Wen CHANGinventor
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Abstract
The present invention provides a double-layered foamed paper container and a manufacturing method thereof. The manufacturing method of the double-layered foamed paper container includes following steps: applying first foaming material, primary drying, applying second foaming material, secondary drying and heating and foaming. The double-layered foamed paper container includes: a paper container body, having a circumferential wall and defining a receiving space, a first foam layer disposed on at least a portion of a side of the circumferential wall opposite to the receiving space.
Claims10
A manufacturing method of a double-layered foamed paper container, including following steps:
- applying first foaming material:
- applying a first foaming material to at least a portion of a paper container body;
- primary drying:
- drying the first foaming material at a temperature lower than a foaming temperature of the first foaming material;
- applying second foaming material:
- applying a second foaming material to at least a portion of a side of the first foaming material opposite to the paper container body;
- secondary drying:
- drying the second foaming material at a temperature lower than a foaming temperature of the second foaming material;
- and
- heating and foaming:
- heating the first foaming material and the second foaming material to foam into a first foam layer and a second foam layer respectively.
Dependencies are inferred from the claim text.