A repulpable recycled high barrier paper tube system for expanded food packaging and method of making the same
By setting a continuous reinforcing structure of water-based high-barrier sealing layer and bio-based or biodegradable polymer sealing layer at key locations of puffed food paper tubes, the barrier failure problem of puffed food paper tubes is solved, achieving moisture barrier, oxygen barrier, oil barrier, aroma preservation and resizing adaptability of the whole tube, and reducing migration short circuit and recycling difficulty.
CN122402907APending Publication Date: 2026-07-17DU BAI CHENG NEW MATERIAL TECH (SHANGHAI) CO LTD +4
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DU BAI CHENG NEW MATERIAL TECH (SHANGHAI) CO LTD
- Filing Date
- 2026-06-16
- Publication Date
- 2026-07-17
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Figure CN122402907A_ABST
Abstract
本发明公开一种用于膨化食品包装的可再浆回收高阻隔纸筒系统及其制备方法。纸筒系统包括卷绕或围合筒身、底盖组件、顶封组件及阻隔连续补强结构。筒身搭接处的食品容纳腔侧纸基切边经双层封边跨端面包覆；底盖装配区和顶封区分别形成环形连续阻隔结构。该纸筒系统适用于膨化食品包装，尤其适用于充氮叠片状膨化食品包装，可在一定工艺窗口内改善整筒密封、阻氧阻潮、保香和可再浆适配性能。
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