Water-Soluble Sheet Soap Pump Bottle for Leak-Free Travel Dispensing
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Solution Overview
Problem
Conventional soap products are inconvenient for travel due to leakage issues, limited shelf-life, and unpredictable dispensing, leading to waste and inefficiency.
Innovation Solution
A foam soap delivery system featuring a water-soluble sheet soap packaged within a dispenser, where the sheet soap is made of polyvinyl alcohol, film-forming materials, and surfactants, and is designed to form a foam upon contact with water, allowing for precise metered dispensing and reducing leakage risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional liquid soap containers are used, then they provide continuous supply of soap, but they are cumbersome, can leak, and are subject to postal restrictions
Solution Approach 1:
The invention changes the physical state of the soap from liquid to solid sheet form. The sheet soap has a bending resistance between 1-50 mgf, making it flexible enough to handle but solid enough to prevent leakage. This parameter change resolves the contradiction by eliminating the leakage issue inherent in liquid containers while maintaining portability.
Solution Approach 2:
The soap is formulated as thin sheet films that are flexible yet intact. These sheets can be bent and handled easily for travel but maintain their structural integrity to prevent breaking and leakage. The thin film structure allows the soap to adapt to portable dispenser formats while resisting the harmful factor of leakage.
2Duration of action of moving object
If conventional liquid soap is used, then it provides immediate cleansing, but it has limited shelf-life that begins at production
Solution Approach 1:
The sheet soap is prepared in advance in a stable, dry state with extended shelf-life. The water-soluble formulation remains stable during storage and only activates when water is added at the point of use. This preliminary preparation in a stable state resolves the contradiction by extending shelf-life while ensuring the product remains available and effective until use.
Solution Approach 2:
The invention extracts water from the soap formulation during storage, creating a dry, stable sheet that resists degradation. Water is added back only when needed for use. This extraction of the solvent (water) during storage resolves the contradiction by preventing the chemical degradation that limits conventional liquid soap shelf-life while maintaining the ability to provide immediate cleansing when activated.
3Loss of substance
If conventional liquid soap dispensing is used, then it provides continuous flow, but dispensing appropriate amounts is unpredictable leading to waste
Solution Approach 1:
The soap is divided into individual sheet units, each representing a controlled dosage. Users can easily separate and use one sheet at a time, providing predictable dispensing without overflow or waste. This segmentation resolves the contradiction by converting continuous liquid flow into discrete, measurable units that are easier to control and less prone to waste.
Solution Approach 2:
Instead of continuous liquid flow, the dispensing occurs in periodic intervals corresponding to individual sheet usage. Each sheet dissolves completely over a defined period, providing consistent and predictable amounts of soap. This periodic action resolves the contradiction by eliminating the unpredictability of continuous dispensing while maintaining ease of operation through simple sheet-by-sheet usage.
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 system provides a lightweight, leak-resistant, and long-lasting personal cleansing solution that ensures accurate dispensing, reducing waste and meeting travel and hygiene needs effectively.
Implementation Method 1
The sheet soap is dissolvable in water to form a foamable solution
Implementation Method 2
the hand-actuatable pump mixes air with the foamable solution to produce and discharge the foam
Data Source
AI summary
The present invention is directed to a foam soap delivery system. In accordance with the present invention, the system includes a paperboard core with a plurality of sheets of paper or tissue wound around the paperboard core. A dispenser is removably disposed within the paperboard core, and a water-soluble sheet soap is disposed within the dispenser.