Packaging container and method for using same
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Solution Overview
Problem
Conventional packaging containers for water absorptive contents, such as wet sheets, face issues with evaporation of liquids due to open designs, leading to drying and potential bacterial proliferation, and often require stimulating agents to prevent bacterial growth, which can cause skin allergies.
Innovation Solution
A packaging container design where the water absorptive content is initially dry and stored with a separate liquid enclosure member, allowing the liquid to be introduced only before use, preventing bacterial growth and eliminating the need for antiseptic agents by maintaining the content in a dry state until impregnation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the packaging container uses a lid member or seal member that can be tightly closed to prevent drying, then the liquid retention is improved, but the ease of operation deteriorates because it is difficult to re-attach the lid member or seal member tightly, especially in soft packaging bags
Solution Approach 1:
The packaging container is divided into a container body and a separate lid member that can be easily attached and detached. The lid member includes a seal portion that fits into a groove in the container body, creating a simple yet effective sealing mechanism that is easy to operate while maintaining liquid retention.
Solution Approach 2:
A seal member is introduced as an intermediary element between the lid member and the container body. This seal member deforms elastically to fill gaps and create a tight seal, facilitating easy attachment while preventing liquid leakage and evaporation.
2Ease of operation
If the packaging container uses a wide opening to allow easy removal of wet sheets, then the ease of operation is improved, but the liquid retention deteriorates because the chemical liquid evaporates each time the wet sheet is used
Solution Approach 1:
The opening is segmented into a large main opening for easy sheet removal and a smaller seal portion that can be closed when not in use. This allows the container to provide both easy access and liquid retention at different times.
Solution Approach 2:
The lid member can be dynamically opened wide for sheet removal and then closed to seal the opening. This dynamic operation allows the container to adapt between providing easy access and preventing evaporation based on usage needs.
3Reliability
If the wet sheet is impregnated with liquid before packaging to maintain moisture, then the liquid retention is improved, but the sanitation deteriorates because bacteria and viruses can easily adhere and proliferate in the wet condition
Solution Approach 1:
The liquid is pre-filled into the container body before the wet sheet is introduced. The wet sheet is then sealed in a separate state within the packaging, allowing the liquid to be present without creating a breeding environment for bacteria during storage.
Solution Approach 2:
A seal member acts as an intermediary barrier that prevents direct contact between the liquid and the wet sheet during storage. This isolation maintains liquid retention while preventing bacterial proliferation by keeping the sheet in a dry state until use.
4Object-affected harmful factors
If antiseptic agents or bactericides are blended into the wet sheet to prevent bacterial growth, then the sanitation is improved, but the object-generated harmful factors worsen because stimulating reagents may cause allergy or rough skin
Solution Approach 1:
The harmful antiseptic agents are extracted from the wet sheet formulation. Instead, sanitation is achieved through physical isolation using seal members that prevent bacterial contamination without requiring chemical additives, thereby eliminating skin irritation risks.
Solution Approach 2:
A seal member is introduced as an intermediary protective barrier that prevents bacterial contamination of the wet sheet without requiring antiseptic agents. This physical sealing mechanism achieves sanitation goals while avoiding the harmful effects of stimulating reagents.
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
This design prevents bacterial proliferation and skin allergies by keeping the content dry until use, allowing for hygienic storage and use without antiseptic agents, while ensuring effective impregnation with the liquid.
Implementation Method 1
the content is exposed out of the bag body and impregnated with the surrounding liquid by absorption
Data Source
AI summary
To hygienically store contents without the use of a stimulating reagent, such as a preservative. A packaging container for containing water absorptive contents 11 in which a liquid is impregnated, the packaging container being provided with: a container body 10 having an opening that can be opened and closed; a liquid enclosure member 50a which is disposed inside the container body 10 and in which liquid is enclosed; a bag body 30 contained inside the container body 10 in a state in which the contents 11 are enclosed; a pullout portion 31 that is a portion of the bag body 30 and is pulled out through a seal member 42; and a rupture section 30b for rupturing the bag body 30, the rupture section 30b being formed in one portion of the bag body 30. The seal member is provided with an opening 41 which is in communication with the interior of the container body 10, and a seal member 42 that blocks the opening 41 on the outer surface of the container body 10 and forms a re-attachable seal shape.