Packaging bag and packaging body
WO2026063282A1PCT designated stage Publication Date: 2026-03-26TOPPAN HOLDINGS INC
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-09-09
- Publication Date
- 2026-03-26
AI Technical Summary
Technical Problem
Packaging bags designed for chemically reactive contents, such as strongly acidic or basic drugs, often experience cracks at the mountain-fold portion when dropped, leading to potential deterioration of the contents.
Method used
A packaging bag with a laminated structure comprising a base layer of polyamide resin, a metal layer of aluminum foil, and adhesive resin layers, with specific loop stiffness values and adhesive configurations, to enhance drop resistance.
Benefits of technology
The laminated structure effectively suppresses cracks at the mountain-fold portion, maintaining the integrity and chemical stability of the contents during drops.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure JP2025031832_26032026_PF_FP_ABST
Abstract
A packaging bag comprising a pair of first members, and a second member positioned between the pair of first members and having a mountain fold part, wherein the second member is a laminate with a laminate structure including a base material layer, a metal layer, an adhesive resin layer, and a sealant layer in this order, and the base material layer contains a polyamide resin.
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Citation Information
Patent Citations
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