Sealed Compartment for Active Agent in Packaging
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Solution Overview
Problem
Existing packaging assemblies for moisture and oxygen sensitive products, such as inhalers and tablets, face issues where the active agent (e.g., desiccant) is in direct contact with the product, risking ingestion or contamination, and loses efficacy when exposed to the ambient environment.
Innovation Solution
A container design with a sealed compartment for the active agent, using a sealing layer to isolate it from the product space, allowing for controlled exposure through puncturing or removal of the sealing layer to establish fluid communication when needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the active agent is placed in direct contact with the product in the container, then the active agent can immediately function to absorb moisture or scavenge oxygen, but the active agent risks being ingested by the user and may contaminate the product with fragments
Solution Approach 1:
The container interior is divided into separate compartments: one for the product and another for the active agent. This segmentation physically separates the active agent from the product, eliminating the risk of ingestion and contamination while maintaining the protective function. The compartmentalization allows each substance to be contained in its own dedicated space.
Solution Approach 2:
A sealed barrier or membrane is introduced as an intermediary between the active agent and the product. This intermediary layer allows moisture and oxygen to pass through (enabling the active agent to protect the product) while preventing direct contact between the active agent particles and the product, thus eliminating ingestion risk and contamination.
2Ease of operation
If the active agent is exposed to the ambient environment, then it can begin functioning immediately, but it loses its efficacy quickly once used up
Solution Approach 1:
The active agent is pre-loaded into the sealed compartment during manufacturing, but its activation is delayed until the point of use. The sealing barrier remains intact during storage and transport, preserving the active agent's efficacy. Activation occurs when the seal is broken or punctured, allowing the active agent to begin functioning at the optimal moment rather than being exposed prematurely.
Solution Approach 2:
The container structure provides different environmental conditions in different regions: the active agent is kept in a sealed, protected environment during storage to maintain its potency, while the product space is designed to allow activation when needed. This local differentiation of conditions optimizes both preservation and functionality.
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
Prevents accidental ingestion and contamination of the product, while maintaining the efficacy of the active agent by isolating it until activation, thereby extending its useful life and ensuring the product's integrity.
Implementation Method 1
The compartment is sealed by a sealing layer in order to encapsulate the active agent within the compartment so as to prevent fluid communication between the active agent and the product space
Implementation Method 2
The active agent can function to, e.g., absorb moisture or scavenge oxygen that would otherwise compromise the integrity of the product
Implementation Method 3
The active agent can function to, e.g., absorb moisture or scavenge oxygen that would otherwise compromise the integrity of the product
Data Source
Figure 1
Figure 2
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AI summary
A container for a packaging assembly can include a body having a base and a sidewall extending therefrom. The body can define an interior including a product space configured for housing at least one product, and can have an opening leading to the interior. The container can include an active agent located within a compartment that is provided within the interior. The compartment can be sealed by a sealing layer to encapsulate the active agent within the compartment so as to prevent fluid communication between the active agent and the product space.