Pinch-pull type closure liner
The pinch-pull type closure liner facilitates easy, two-stage opening and maintains seal integrity by incorporating a functional layer with tearing lines and an electromagnetic induction heating layer, addressing the challenges of conventional liners.
US20260192974A1Pending Publication Date: 2026-07-09YANG YEN WU
Patent Information
- Authority / Receiving Office
- US · United States
- Patent Type
- Applications(United States)
- Current Assignee / Owner
- YANG YEN WU
- Filing Date
- 2025-11-14
- Publication Date
- 2026-07-09
AI Technical Summary
Technical Problem
Conventional closure liners are difficult to open, often requiring tools and can result in excessive pouring of contents when opened, and fail to prevent oxygen and moisture ingress, leading to content deterioration.
Method used
A pinch-pull type closure liner with a functional layer featuring a surface film, bonding film, release layer, strong adhesion layer, and electromagnetic induction heating layer, including first and second tearing lines and a hollow area, allowing for two-stage tearing and easy opening without tools.
Benefits of technology
Enables convenient, tool-free opening of containers in two stages, reducing content waste and maintaining seal integrity, while preventing oxygen and moisture ingress.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure US20260192974A1-D00000_ABST
Abstract
A pinch-pull type closure liner includes: a functional layer, including a surface film and a bonding film sequentially from top to bottom; a sealing layer, located below the functional layer; a release layer, a strong adhesion layer, and an electromagnetic induction heating layer, those are located between the surface film and the sealing layer. The functional layer of the pinch-pull type closure liner is provided with a first tearing area, a hollow area, a first tearing line, a second tearing line and a secondary cutting line. The first tearing area includes: a lifting part; a lifting neck, connected with the bottom end of the lifting part and having a first connection point and a second connection point; the first tearing line, connected with the first connection point at one end; and the second tearing line, connected with the second connection point at one end.
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