Biodegradable Shoe Sole Covering for Hygiene
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Solution Overview
Problem
Existing footwear solutions fail to effectively prevent cross-contamination between shoes and supporting surfaces while being environmentally friendly and disposable.
Innovation Solution
A biodegradable shoe sole covering with a vamp guard, heel guard, arch union, and tab, made from lactic acid polymers and block copolymers, attaches to the outsole to form a barrier, utilizing pressure-sensitive adhesives and heat bonding for secure attachment and easy removal, providing a nonskid surface and accommodating various shoe forms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a disposable shoe sole covering is used to prevent cross-contamination, then hygiene and ease of disposal are improved, but environmental pollution increases
Solution Approach 1:
The patent employs a disposable shoe sole covering that is used once and then discarded, eliminating the need for cleaning and disinfection processes. The covering is designed to be inexpensive enough to justify single-use, thereby ensuring consistent hygiene without the complexity of reuse protocols.
Solution Approach 2:
The patent utilizes a biodegradable polymer material that changes its degradation parameters based on environmental conditions. The material remains stable during use but automatically degrades after disposal through hydrolysis reactions, transforming from a protective barrier into harmless byproducts without requiring external intervention.
2Object-generated harmful factors
If a biodegradable material is used for the shoe sole covering, then environmental friendliness is improved, but attachment strength and durability may worsen
Solution Approach 1:
The patent employs a composite material system consisting of biodegradable polymer base material combined with pressure-sensitive adhesive layers. This composite structure maintains the environmental benefits of biodegradability while adding functional properties of strong attachment through the adhesive component, which bonds securely to both the shoe sole and the covering material.
Solution Approach 2:
The biodegradable polymer material exhibits parameter changes based on environmental conditions - remaining stable and maintaining structural integrity during use, then automatically initiating degradation through hydrolysis reactions after disposal. This temporal separation of stability and degradability resolves the contradiction between durability and environmental friendliness.
3Ease of operation
If pressure-sensitive adhesives and heat bonding are used for attachment, then secure attachment and easy removal are improved, but manufacturing complexity increases
Solution Approach 1:
The pressure-sensitive adhesive system is designed to be self-activating through simple pressure application during installation, eliminating the need for external heating equipment or complex bonding machinery. The adhesive bonds automatically when pressure is applied, and the covering can be easily removed by peeling without requiring solvents or additional tools.
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 shoe sole covering effectively prevents cross-contamination, is easily removable, and degrades through hydrolysis, offering a hygienic and sustainable solution for footwear use.
Implementation Method 1
utilizing pressure-sensitive adhesives and heat bonding for secure attachment
Implementation Method 2
The shoe sole covering is also degradable primarily through hydrolysis reactions
Implementation Method 3
utilizing pressure-sensitive adhesives and heat bonding for secure attachment
Data Source
AI summary
The shoe sole covering is configured for use with a shoe. The shoe sole covering is configured to attach to the sole of the shoe. The sole of the shoe is further defined with an insole and an outsole. The shoe sole covering attaches to the outsole of the shoe to form a barrier between the shoe and a supporting surface. The barrier prevents cross-contamination between the supporting surface and the shoe. The shoe sole covering is a disposable product that is biodegradable. The shoe sole covering is also degradable primarily through hydrolysis reactions. The shoe sole covering comprises a vamp guard, a heel guard, an arch union, and a tab. The arch union attaches the vamp guard to the heel guard. The tab attaches to the heel guard.