Biodegradable Packaging Films Using Composite Polymers and Fats
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current packaging materials, particularly for foodstuffs, face challenges in being both biodegradable and maintaining sufficient mechanical properties for effective use, while also ensuring rapid dissolution and avoiding remnants in dissolution solutions.
Innovation Solution
Compositions and films composed of biodegradable polymers and polyhydric alcohols or acids, with specific ratios and inclusion of bulking agents, chelating agents, and emulsifiers, which enhance solubility and stability, and can be used to create dissolvable packaging materials that maintain mechanical strength and rapid dissolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If biodegradable polymers are used for packaging, then environmental degradability is improved, but mechanical strength and structural stability deteriorate
Solution Approach 1:
The patent uses composite materials by combining biodegradable polymers (alginate, pectin, gelatin, starch, or cellulose) with edible fats and oils to create a packaging film that maintains mechanical strength while being biodegradable. The composite structure allows the polymer matrix to provide structural integrity and the fat/oil components to enhance flexibility and water resistance, resolving the contradiction between degradability and strength
Solution Approach 2:
The patent applies parameter changes by controlling the molecular weight, degree of substitution, and cross-linking density of the biodegradable polymers to optimize both mechanical properties and biodegradability. By adjusting these parameters, the packaging film achieves sufficient strength for food containment while maintaining its ability to degrade environmentally
2Object-affected harmful factors
If packaging materials are made biodegradable, then environmental impact is reduced, but dissolution control and completeness worsen
Solution Approach 1:
The patent uses parameter changes by controlling the molecular weight, crystallinity, and cross-linking degree of biodegradable polymers to regulate dissolution rate and completeness. By adjusting these parameters, the packaging dissolves completely and controllably in the intended environment (e.g., digestive system or compost) without leaving harmful remnants, while maintaining environmental degradability
Solution Approach 2:
The patent applies local quality by creating regions with different polymer compositions and cross-linking densities within the packaging structure. This allows different parts of the packaging to dissolve at different rates, ensuring complete and controlled dissolution while maintaining structural integrity during use, thus resolving the contradiction between biodegradability and dissolution control
3Ease of manufacture
If simple biodegradable materials are used, then manufacturing simplicity is improved, but functional performance for food containment deteriorates
Solution Approach 1:
The patent uses composite materials combining multiple biodegradable components (polymers, fats, oils, and optional additives) to achieve food containment performance while maintaining manufacturing simplicity. The components are mixed and processed using conventional extrusion or casting techniques, avoiding complex manufacturing steps while providing the necessary barrier properties, structural strength, and food safety for effective food containment
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 described compositions and films provide biodegradable packaging solutions with sufficient mechanical properties for foodstuffs, ensuring rapid and complete dissolution without leaving remnants, thus addressing the limitations of existing materials.
Implementation Method 1
the film may include any of the components described in relation to the compositions above
Implementation Method 2
ensuring rapid and complete dissolution without leaving remnants
Data Source
AI summary
Films and packaging materials including biodegradable and edible components and pods created using these materials are described herein.