Multi-Layer Humidity Controlling Container Wall Structure
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Solution Overview
Problem
Conventional humidity controlling containers face difficulties in maintaining low humidity levels within the accommodating chamber due to the resin composition layer absorbing both internal and external humidity.
Innovation Solution
A humidity controlling container design featuring an innermost and outermost olefin-based resin layer, with a first resin composition layer having a higher dehumidification capacity and a second layer with a larger water absorbance, separated by an intermediate olefin-based resin layer, which prevents external moisture absorption by the first layer and allows for effective humidity control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a resin composition layer mixed with moisture absorbent is provided in the container wall, then moisture absorption capability is improved, but the layer absorbs both internal and external humidity causing difficulty in maintaining low humidity levels
Solution Approach 1:
The wall structure is segmented into multiple functional layers: an innermost layer defining the accommodating chamber, a first resin composition layer with high dehumidification capacity, a second resin composition layer with large water absorbance, and an outermost layer. This segmentation allows the first layer to focus on absorbing moisture from the accommodating chamber while the second layer handles external moisture, resolving the contradiction between moisture absorption capability and maintaining low internal humidity.
Solution Approach 2:
Different layers are assigned different local qualities based on their moisture absorption characteristics. The first resin composition layer is positioned where it can effectively absorb moisture from the accommodating chamber, while the second resin composition layer is positioned to absorb external moisture. This local differentiation ensures that each layer performs its specific function optimally without interfering with the other.
2Device complexity
If a single resin composition layer is used, then device complexity is reduced, but it cannot distinguish between internal and external moisture sources
Solution Approach 1:
The wall is divided into multiple layers with distinct functions: the first resin composition layer for internal dehumidification and the second resin composition layer for external moisture absorption. This segmentation enables the system to differentiate between internal and external moisture sources, improving humidity control precision while maintaining reasonable structural complexity.
Solution Approach 2:
The wall structure uses composite material layers combining olefin-based resin with different moisture absorbent materials. The first resin composition layer contains moisture absorbent with high dehumidification capacity, while the second layer contains moisture absorbent with large water absorbance. This composite approach allows each layer to perform its specific moisture control function effectively.
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 configuration reliably maintains low humidity levels within the chamber by suppressing external moisture absorption and preventing moisture transfer between layers, while minimizing weight, cost, and size increases.
Implementation Method 1
a first resin composition layer which surrounds the innermost layer from a side opposite to the accommodating chamber, the first resin composition layer has a higher dehumidification capacity for a space of the same volume than the second resin composition layer
Implementation Method 2
a second resin composition layer which surrounds the first resin composition layer from the side opposite to the accommodating chamber, the second resin composition layer has a larger absorbable amount of water than the first resin composition layer
Data Source
Figure 1
AI summary
Disclosed herein is a humidity controlling container (1) including an accommodating chamber (A) in which contents are accommodated. A wall portion (11) thereof includes an innermost layer (14) which defines the accommodating chamber, a first resin composition layer (12) which surrounds the innermost layer from a side opposite to the accommodating chamber, a second resin composition layer (13) which surrounds the first resin composition layer from the side opposite to the accommodating chamber, and an outermost layer (15) which surrounds the second resin composition layer from the side opposite to the accommodating chamber, wherein the first resin composition layer has a higher dehumidification capacity for a space of the same volume than the second resin composition layer, the second resin composition layer has a larger absorbable amount of water than the first resin composition layer, the innermost layer and the outermost layer are formed of an olefin-based resin, the first resin composition layer and the second resin composition layer are formed of an olefin-based resin mixed with a moisture absorbent, and an intermediate layer (16) formed of an olefin-based resin is interposed between the first resin composition layer and the second resin composition layer.