Liquid-Filled Soap Bar with Dissolvable Shell
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Solution Overview
Problem
Existing single-serving soap solutions fail to provide adequate lather quickly and result in waste disposal issues, as they either lack sufficient soap or require discarding non-biodegradable packaging.
Innovation Solution
A thin, breakable solid soap outer shell containing a liquid washing agent that dissolves during use, allowing for quick lathering and complete drainage without residual waste, with optional intermediate layers for enhanced dissolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If single-serving soap packets are used, then the amount of soap is sufficient for single use, but the packet does not dissolve quickly enough and leaves residual packaging waste
Solution Approach 1:
The patent changes the physical state of the packaging material from solid/durable to water-soluble by selecting specific materials (starch, cellulose, gelatin) that dissolve at different temperatures and rates, enabling the packaging to disappear completely after use while dissolving quickly in warm water
Solution Approach 2:
The patent uses composite material structures combining water-soluble packaging materials with soap contents, and optionally intermediate layers with different dissolution rates, creating a multi-layer composite that provides both quick dissolution and complete breakdown without residue
2Loss of substance
If the solid soap outer shell is made thin for quick dissolution, then waste disposal is eliminated, but the structural integrity may be compromised
Solution Approach 1:
The patent applies different thicknesses and material properties to different parts of the outer shell, with the material composition (starch, cellulose, gelatin) providing appropriate balance between thinness for quick dissolution and structural integrity for handling and protection of contents
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
The solution provides immediate and sufficient lather while ensuring that all components, including the outer shell, can be fully consumed and flushed, eliminating waste disposal concerns.
Implementation Method 1
a thin, breakable solid soap outer shell containing a liquid washing agent that dissolves during use
Data Source
AI summary
An application for an individual liquid-filled soap includes a thin, breakable, solid soap outer shell and a liquid contained within the thin, solid soap outer shell. The liquid is either liquid soap or a soap-compatible liquid such as lanolin, hand cream, antibacterial soap, and antibacterial cream or a combination of these ingredients.