Packaging body and method for producing same
AssigneeKao Corporation
InventorsMasaki Hiwatashi, Hotaka Takakuwa
Life of this patent
Estimating the term…
Abstract
A package (1) includes a bag (20) and a sheet laminate (10) packaged in the bag (20). The sheet laminate (10) includes a first fiber sheet (11) including a first fiber including a PET resin having a melting point higher than 230° C., and a second sheet (12) including a thermoplastic resin having a melting point of 230° C. or lower. The sheet laminate (10) includes a joined portion (30) in which the first fiber sheet (11) and the second sheet (12) are joined adjacently to each other. In the joined portion (30), constituent resin of the first fiber sheet (11) is embedded in the thermoplastic resin constituting the second sheet (12). The present invention also provides a production method of the package.
Claims12
A package comprising:
- a bag;
- and
- a sheet laminate packaged in the bag, wherein
- the sheet laminate includes:
- a first fiber sheet including a first fiber including a constituent resin which contains a polyethylene terephthalate resin having a melting point of 230° C. to 300° C., inclusive;
- and
- a second sheet including a thermoplastic resin having a melting point of 70° C. to 230° C., inclusive,
- the sheet laminate includes a joined portion in which the first fiber sheet and the second sheet are joined adjacently to each other,
- in the joined portion, the thermoplastic resin constituting the second sheet buries gaps among the constituent fibers of the first fiber sheet with the constituent fibers of the first fiber sheet maintaining fiber shapes thereof, and
- the first fiber sheet, the second sheet, and a heating element including an oxidizable metal are laminated on a site other than a formation site of the joined portion.
Dependencies are inferred from the claim text.