Bio-Based Leather Composition to Replace PU and PVC Polymers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vegan leathers made from polyurethane (PU) or polyvinyl chloride (PVC) contribute to environmental pollution and can cause allergies, failing to address carbon emissions and sustainability concerns.
Innovation Solution
Development of bio-based leathers composed of a bio-polymer mixture containing 25-60% plant-based composition and 40-75% curative pre-polymer mixture, applied to a fiber cloth and cured with heat, eliminating PU and PVC.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vegan leather is made from polyurethane (PU) or polyvinyl chloride (PVC), then it provides durable and versatile material properties, but it contributes to environmental pollution, increases carbon emissions, and can cause allergies
Solution Approach 1:
The patent changes the chemical composition parameters by replacing PU/PVC with a bio-polymer mixture comprising plant-based composition (25-60%) and curative pre-polymer mixture (40-75%), fundamentally altering the material's environmental and health properties while maintaining functional performance
Solution Approach 2:
The invention creates a composite material system combining plant-based composition with curative pre-polymer mixture in specific ratios, forming a new composite leather material that achieves both durability and environmental sustainability without using traditional PU or PVC
2Reliability
If traditional leather production methods are used, then high-quality leather product is obtained, but a massive amount of energy and chemicals are consumed and large amounts of toxic waste are expelled
Solution Approach 1:
The patent fundamentally changes the production parameters by using plant-based composition and curative pre-polymer mixture instead of traditional tanning chemicals, reducing energy and chemical consumption while maintaining leather quality
Solution Approach 2:
The invention uses plant-based materials that are more readily available and biodegradable, replacing expensive and persistent chemical processes with sustainable, shorter-cycle production methods
3Object-generated harmful factors
If plant-based composition is used in bio-polymer mixture, then environmental sustainability and biodegradability are improved, but the composition complexity and manufacturing process difficulty increase
Solution Approach 1:
The patent establishes specific parameter ranges for plant-based composition (25-60%) and curative pre-polymer mixture (40-75%) to optimize both environmental sustainability and manufacturing feasibility, balancing composition complexity with performance requirements
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 bio-based leathers are environmentally friendly, biodegradable, and free from animal cruelty, offering improved sustainability and reduced health risks while maintaining mechanical properties.
Implementation Method 1
combining the plant-based composition and the curative pre-polymer mixture to form a bio-polymer mixture
Implementation Method 2
applying heat to the composition of step (d), thereby forming a bio-based leather
Data Source
AI summary
In one aspect, the invention relates to bio-based leathers that do not contain polyurethane (PU) or polyvinyl chloride (PVP) or dimethylformamide (DMF). Also disclosed are methods of making bio-based leathers.