Packaging bags and laminates

JP7844408B2Active Publication Date: 2026-04-13DAI NIPPON PRINTING CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
DAI NIPPON PRINTING CO LTD
Filing Date
2023-09-12
Publication Date
2026-04-13

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Abstract

To provide a packaging bag that can evacuate internal vapor of a storage part to the outside during heating and reduce an environmental load, and to provide a laminate.SOLUTION: A packaging bag uses a laminate including at least a base material layer and a sealant layer in this order and includes a vapor vent mechanism. The base material layer includes polyethylene terephthalate contains a biomass-derived ethylene glycol as a diol unit and a fossil fuel-derived terephthalic acid as a dicarboxylic acid unit.SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

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