Standing Pouch Structure for Separated Thermal Reaction Control
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Solution Overview
Problem
Conventional standing pouches face issues with unexpected exothermic or endothermic reactions due to the inclusion of reactant liquids, making them difficult to carry and store, and are not recyclable or customizable for heating or cooling various contents, especially when packaging retort food.
Innovation Solution
A standing pouch design featuring separate temperature control spaces with open upper sides for reactant liquids to interact with heat releasing or absorbing elements, allowing for controlled temperature adjustments without the need for a reactant liquid inside, and a recyclable structure for sanitary retort food packaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the pouch includes reactant liquid and heat releasing element together, then temperature control function is achieved, but unexpected exothermic reaction occurs causing safety issues
Solution Approach 1:
The pouch is divided into separate compartments: a first compartment containing the heat releasing element and a second compartment containing the reactant liquid. This segmentation prevents unintended contact and reaction while allowing independent control of each component.
Solution Approach 2:
The reactant liquid is extracted from the main contents area and placed in a separate compartment. This extraction allows the heat releasing element to function without immediate contact with the reactant, preventing accidental reactions while maintaining the temperature control capability.
2Temperature
If the pouch includes reactant liquid for temperature control, then heating or cooling function is provided, but the pouch becomes heavy and difficult to carry
Solution Approach 1:
The reactant liquid is extracted from the traditional design and placed in a separate, removable compartment. This allows users to carry only the lightweight pouch with the heat releasing element, and add the reactant liquid only when temperature control is needed.
Solution Approach 2:
The pouch is designed to accommodate multiple types of reactant liquids (hot water, cold water, ice) in the same compartment structure, making it a universal solution for different temperature control needs without requiring multiple separate containers.
3Temperature
If the pouch includes reactant liquid for temperature control, then heating or cooling capability is achieved, but the pouch cannot be used for optional contents
Solution Approach 1:
The pouch is segmented into a main contents area and a separate temperature control compartment. This segmentation allows users to freely choose and place any contents in the main area while the separate compartment houses the temperature control mechanism, enabling complete customization of contents.
Solution Approach 2:
The design separates the temperature control function from the contents area, making the pouch universally adaptable to various contents types (food, beverages, cosmetics, etc.) while maintaining the option to use temperature control when needed.
4Reliability
If the container and heat releasing element are sealed together, then safety during carriage is improved, but the pouch becomes non-recyclable after use
Solution Approach 1:
The pouch is designed with separable segments: the main pouch body and the temperature control compartment containing the heat releasing element. This segmentation allows the main pouch to be reused and recycled, while the consumable compartment can be replaced, combining safety with environmental sustainability.
Solution Approach 2:
The design allows the reactant liquid compartment to be discarded after use while the main pouch and heat releasing element can be recovered and reused. This partial recyclability approach maintains safety during carriage while reducing waste.
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 unexpected reactions, facilitates easy carriage and storage, allows for customizable heating or cooling of contents, and enables sanitary packaging of retort food by using a heat releasing or absorbing element with a reactant liquid outside the contents space, enhancing user flexibility and environmental sustainability.
Implementation Method 1
a first temperature control space and a second temperature control space which are spaced from each other, to form a contents accommodating space between the first temperature control space and the second temperature control space... at least one of the first temperature control space and the second temperature control space having an open upper side to put a reactant liquid reacting with the first and second temperature control members to generate an exothermic or endothermic reaction
Implementation Method 2
a first temperature control space and a second temperature control space which are spaced from each other, to form a contents accommodating space between the first temperature control space and the second temperature control space... at least one of the first temperature control space and the second temperature control space having an open upper side to put a reactant liquid reacting with the first and second temperature control members to generate an exothermic or endothermic reaction
Data Source
AI summary
A standing pouch includes an external pack, and an internal pack which is disposed in the external pack to form a first temperature control space and a second temperature control space which are spaced from each other, to form a contents accommodating space between the first temperature control space and the second temperature control space to accommodate contents. The first temperature control space can communicate with the second temperature control space. A first temperature control member and a second temperature control member are respectively disposed in the first temperature control space and the second temperature control space, and at least one of the first temperature control space and the second temperature control space have an open upper side to put a reactant liquid reacting with the first and second temperature control members to generate an exothermic or endothermic reaction.