Oxidized Cellulose Packaging for Odor Control and Anti-Counterfeiting
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Solution Overview
Problem
Traditional cellulose-based packaging materials lack improved odor control and antimicrobial properties, and there is a need for a method to track the source of packaging materials to prevent counterfeiting.
Innovation Solution
Incorporating oxidized cellulose into packaging materials, which can be derived from kraft pulp and treated with peroxides and catalysts under acidic conditions, to enhance odor control and antimicrobial properties, and using it as an anti-counterfeiting agent by testing for the presence of oxidized cellulose.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cellulose-based packaging materials are used, then the packaging is biodegradable and renewable, but the materials lack improved odor control and antimicrobial properties
Solution Approach 1:
The patent applies parameter changes by oxidizing cellulose to modify its chemical properties, specifically increasing carboxyl and carbonyl content. This chemical modification transforms ordinary cellulose into oxidized cellulose with enhanced odor control and antimicrobial properties, while maintaining the biodegradable and renewable characteristics of the original material.
Solution Approach 2:
The patent creates composite materials by incorporating oxidized cellulose into packaging materials. The oxidized cellulose acts as a functional component within the packaging structure, providing odor control and antimicrobial properties while the base packaging material maintains its structural integrity and biodegradability.
2Reliability
If oxidized cellulose is incorporated into packaging materials, then odor control and antimicrobial properties are improved, but the manufacturing process becomes more complex
Solution Approach 1:
The patent applies preliminary action by pre-oxidizing cellulose before incorporating it into packaging materials. The oxidation process is performed in advance to create oxidized cellulose with the desired functional properties, which is then integrated into the packaging material manufacturing process. This separates the chemical modification step from the material formation step, making the overall process more manageable.
3Loss of information
If oxidized cellulose is used as an anti-counterfeiting agent, then the ability to track and verify packaging source is improved, but additional testing procedures are required
Solution Approach 1:
The patent applies color changes as a detection method for verifying oxidized cellulose presence. The oxidation process creates specific chemical groups (carboxyl and carbonyl) that can be detected through colorimetric tests, providing a simple visual or instrumental method to authenticate packaging materials and track their source.
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 use of oxidized cellulose in packaging materials significantly improves odor control and antimicrobial properties, while also serving as an effective anti-counterfeiting measure by verifying the presence of oxidized cellulose.
Implementation Method 1
the cellulose pulp may be oxidized with at least one peroxide and at least one catalyst under acidic conditions
Implementation Method 2
the peroxide may be hydrogen peroxide and the catalyst may be a catalyst comprising copper and/or iron
Data Source
AI summary
This disclosure relates to improved packaging materials containing oxidized cellulose. More particularly, this disclosure relates to improved packaging materials containing oxidized cellulose exhibiting one or more of improved odor control and/or improved antimicrobial properties. This disclosure further relates to the use of oxidized cellulose in packaging materials as an anti-counterfeiting agent, and methods of testing for the same.