Reversible Closing System Nested Inside Flexible Package
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Solution Overview
Problem
Existing packages of flexible material with reversible closing systems face challenges such as accidental detachment and complex formation processes, especially when the closing system is applied to the outside of the package, requiring specialized materials or techniques, and complicating the handling of the film during package formation.
Innovation Solution
Applying the reversible closing system to the film of flexible material before wrapping it around the forming tube, specifically fixing the support to the inner surface of the package, allows for simpler handling and avoids issues like accidental detachment and contamination, enabling the creation of larger packages without needing large machines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the reversible closing system is applied to the outside of the package, then the closing system is easily accessible, but the closing system can be accidentally detached and requires specialized materials or complex techniques to fix
Solution Approach 1:
The support of the reversible closing system is nested inside the package, fixed to the inner surface of the flexible material. The cap remains externally accessible while the support is internally secured, creating a nested configuration that resolves the contradiction between external accessibility and internal security.
Solution Approach 2:
Instead of fixing the closing system to the outer surface as conventionally done, the invention inverts the approach by fixing the support to the inner surface of the package. This inversion allows the closing mechanism to remain externally accessible while being securely anchored from the inside.
2Ease of manufacture
If the reversible closing system is fixed to the film before forming the package, then the closing system is pre-positioned, but the handling of the film becomes critical and complex
Solution Approach 1:
The support is pre-fixed to the inner surface of the flexible material at the desired position before the package forming process. This preliminary action ensures correct positioning without interfering with subsequent film handling operations, as the support is applied in a way that does not complicate the forming process.
Solution Approach 2:
The invention introduces an intermediary approach by fixing the support to the inner surface rather than directly to the outer surface or integrating it into the film structure. This intermediary positioning allows the closing system to be pre-positioned without becoming an obstacle during film wrapping and package formation.
3Reliability
If specialized materials like double-sealing films are used to fix the closing system, then the closing system attachment is secure, but the packaging materials become more difficult to grind and more expensive
Solution Approach 1:
The invention extracts the complex specialized materials (double-sealing films) from the solution and replaces them with a simpler approach: fixing the support to the inner surface of standard flexible material. This extraction eliminates the need for difficult-to-process materials while maintaining secure attachment.
Solution Approach 2:
The invention replaces expensive specialized materials with standard, easily processable flexible material. The support structure is designed to provide secure attachment using conventional materials, eliminating the need for costly double-sealing films or complex ultrasonic welding techniques.
Data Source
AI summary
A system and a method for producing packages (100) provided with a reversible closing system (110) comprising a support (111) fixed to the package and a cap (112) reversibly applicable to the support are presented. The packages are formed by means of a forming tube (210), by forming a tubular structure of flexible material (300) wound around the forming tube. The reversible closing system is applied to the film of flexible material so that the support is fixed inside the packages. The application of the reversible closing system is performed when the film is wound around the forming tube.