一种单一PET的可热封膜

By introducing a layered double hydroxide nanosheet dispersion barrier layer and a protective coating into PET packaging materials, the problems of existing PET packaging materials being environmentally unfriendly, non-recyclable, and having low barrier properties are solved, achieving high-efficiency oxygen barrier, water barrier, and high-temperature retort resistance.

CN118544663BActive Publication Date: 2026-07-17AMCO TECH R&D CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
AMCO TECH R&D CO LTD
Filing Date
2024-05-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing PET packaging materials are not environmentally friendly, are not recyclable, have low barrier properties, and have limited functionality.

Method used

The heat-sealable film with a single PET structure has an intermediate layer consisting of a substrate layer and a layered double hydroxide nanosheet dispersion barrier layer coated on the substrate layer, along with a protective coating. The outer and inner layers are PET films connected by an adhesive layer.

Benefits of technology

The membrane's oxygen barrier properties, water barrier properties, and high-temperature cooking resistance have been improved, meeting the requirements of food packaging.

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Abstract

本发明公开了一种单一PET的可热封膜,其包括外层、中间层及内层,所述中间层包括基材层以及涂布于基材层上阻隔层,所述阻隔层包括层状双氢氧化物纳米片分散体。通过在基材层上设置阻隔层和保护涂层可有效提高膜的阻氧性、阻水性以及耐高温蒸煮性能,可满足食品包装需求。
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