A light-transmitting and water-resistant packaging film

By using a sandwich structure and gradient distribution of carbon black regions, combined with an arc-shaped sealing frame, the problems of insufficient anti-aging, mechanical strength and sealing performance of existing light-transmitting and water-blocking packaging films are solved, achieving efficient protection of goods.

CN224276560UActive Publication Date: 2026-05-26SUZHOU HAISHUN PACKAGING MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU HAISHUN PACKAGING MATERIAL
Filing Date
2025-06-23
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing light-transmitting and water-blocking packaging films have poor anti-aging properties, insufficient mechanical strength, and poor sealing performance, making them unable to effectively protect items.

Method used

The packaging film features a sandwich structure, comprising a packaging label layer, a front protective film, and a back protective film. It incorporates reinforcing sheets made of glass fiber and transparent polymer materials, and uses a gradient distribution of carbon black areas to absorb ultraviolet rays. An arc-shaped sealing frame is set on the outer surface to enhance the seal.

Benefits of technology

It significantly improves the anti-aging properties, mechanical strength, and sealing performance of packaging film, ensuring that items are not easily broken or affected by moisture during long-term use, providing reliable protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a light-transmitting and water-blocking packaging film, comprising a packaging label layer, a front protective film, a back protective film, reinforcing sheets, carbon black areas, and a sealing frame. The packaging label layer, the front protective film, and the back protective film are composited to form a sandwich structure, with several reinforcing sheets disposed between them. Corresponding carbon black areas are provided on the packaging label layer, the front protective film, and the back protective film. The sealing frame is integrally formed on the surface of the back protective film. This invention uses a sandwich structure composite packaging label layer, etc., with circular glass fiber reinforcing sheets in between to improve tensile strength. The gradient carbon black areas at the edges of the three films absorb ultraviolet rays and resist aging. The inner adhesive area of ​​the arc-shaped sealing frame at the edge of the back protective film is sealed and water-blocking, protecting the items.
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