Moisturizing Sheet Set Compression for Packaging Stability
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Solution Overview
Problem
Existing sheet packages with moisturizing sheets face instability in packaging due to moisture absorption, leading to reduced bulkiness and disrupted stacking, which can result in deteriorated appearance and storage issues.
Innovation Solution
The sheets are stacked and packaged in a compression state of 50% to 80% in the stacking direction, maintaining stability by preventing bulkiness reduction over time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If moisturizing sheets are stored in a film-like packaging bag, then softness and moisturizing properties are improved, but packaging stability deteriorates due to moisture absorption
Solution Approach 1:
The packaging bag is pre-compressed to a predetermined degree before sealing, establishing a compressed state that prevents subsequent bulkiness reduction. This preliminary compression action counteracts the future effect of moisture absorption and volume expansion.
Solution Approach 2:
The compression rate is controlled within a specific range (50-80%) to optimize the balance between initial compactness and stability maintenance. By adjusting this physical parameter, the packaging achieves both space efficiency and long-term stability despite moisture absorption.
2Stability of the object's composition
If compression rate is increased to maintain stability, then packaging stability is improved, but bulkiness is reduced
Solution Approach 1:
The compression rate is optimized within the range of 50-80%, finding the optimal balance point where sufficient compression ensures stability while excessive compression that would severely reduce bulkiness is avoided. This parameter optimization resolves the contradiction between stability and volume.
3Shape
If moisturizing sheets absorb moisture from air, then softness is improved, but stacking stability deteriorates
Solution Approach 1:
The packaging bag is compressed and sealed before the moisture absorption process can disrupt stacking stability. This preliminary compression establishes a stable configuration that resists subsequent changes caused by moisture absorption.
Solution Approach 2:
The compression action is applied in advance to counteract the future harmful effect of moisture absorption. By pre-compressing the packaging, the structure is prepared to resist the volume expansion and stacking disruption that would otherwise occur when sheets absorb moisture.
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 approach ensures a stable packaging condition by preventing bulkiness loss, maintaining appearance and preventing inclination or toppling of the packages.
Implementation Method 1
the sheet stacked body is stored in the packaging bag in a state of being compressed in a stacking direction at a compression rate of 50% or more and 80% or less
Data Source
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AI summary
A sheet package includes: a sheet stacked body in which a plurality of moisturizing sheets is stacked; and a packaging bag in which the sheet stacked body is packaged, wherein the sheet stacked body is stored in the packaging bag in a state of being compressed in a stacking direction at a compression rate of 50% or more and 80% or less.