Decorated Container with Internal Label for Airless Pumps
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Solution Overview
Problem
Existing fluid dispensing containers with deformable bags inside rigid bodies face issues with label durability, readability, and cost due to external exposure and deformation during fluid dispensing, where labels can detach, discolor, or become illegible as the bag shrinks.
Innovation Solution
A container design where a decorative sheet with information is inserted inside the rigid body before forming the deformable bag, allowing it to remain attached and protected, using a two-stage air inflation method to ensure the bag separates from the container walls while maintaining contact with the sheet, preventing vacuum formation and ensuring label integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a label is applied to the outside of the rigid container by gluing, then the container can carry printed information and decorative design, but the label can detach, discolor, or become illegible due to external exposure and container deformation
Solution Approach 1:
The patent inverts the conventional approach by placing the decorative sheet inside the container rather than on the outside. The sheet is positioned between the deformable bag and the rigid container wall, so that when the bag deforms during dispensing, the decorative sheet remains protected and stationary, preventing detachment and illegibility while maintaining visual appeal.
2Ease of operation
If the deformable bag is allowed to contact the container walls directly, then the bag can deform freely during dispensing, but the decorative sheet becomes exposed to external conditions and can detach or discolor
Solution Approach 1:
The patent introduces a decorative sheet as an intermediary element between the deformable bag and the rigid container wall. This sheet acts as a protective mediator that shields the bag from external environmental factors (light, moisture, mechanical damage) while allowing the bag to deform freely during dispensing operations.
3Reliability
If a two-stage air inflation method is used to separate the bag from container walls, then the decorative sheet remains protected and attached, but the production process becomes more complex
Solution Approach 1:
The patent applies preliminary action by inserting the decorative sheet into the container before forming the deformable bag. This sequence ensures the sheet is already in its protected position before the bag is created, eliminating the need for complex post-formation operations to secure the sheet and simplifying the overall production process.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution stabilizes and protects the label information, preventing detachment, discoloration, and illegibility, while reducing production costs by using less resistant materials and ensuring the label remains readable and intact during fluid dispensing.
Implementation Method 1
the preform is heated, thrust towards the container base by a pusher and then inflated within the container, until a bag forms
Implementation Method 2
these ribs or projections define passages for the air which penetrates from the outside between the container and bag to enable this latter to flatten or inwardly deform
Data Source
AI summary
A container comprising a substantially rigid body formed at least partially of transparent material and having a neck defining an opening providing access to the container cavity, and a bag positioned in the interior of the body. The bag being formed of thermoplastic material and having a neck from which there radially extends a flange which rests on a free edge of the neck of the body and defines a hole for providing access to the cavity of the bag and for sealedly housing the body of a hermetic pump operable manually to withdraw the fluid substance from the bag and feed it to the outside through its dispensing stem. The bag being formed by hot blow moulding of a preform positioned directly within the container. A decorative and/or informative sheet detached from the opening being interposed between said container and said bag, and being visible from the outside of the container.