Multilayer Ozone-Scavenging Package Structure for Water Quality
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Solution Overview
Problem
Existing methods for ozone removal in ozonated water, such as heating before consumption, are undesirable or impractical, necessitating a material or method to scavenge ozone effectively.
Innovation Solution
A multilayer package structure comprising an outer layer, interior layers of semi-aromatic polyamide composite material, and an inner layer of polyethylene or polypropylene, with the interior layer configured to absorb oxygen and induce ozone degradation, utilizing a catalyst and oxidizable polymers to scavenge ozone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If excessive ozone is pumped into bags or bottles for water sterilization, then sterilization effectiveness is improved, but residual ozone concentration in water increases causing taste and smell deterioration
Solution Approach 1:
An oxygen scavenging layer is introduced as an intermediary component between the ozonated water and the consumer. This layer contains oxygen that reacts with residual ozone through the equilibrium reaction O3 + O2 ⇌ 2O2, thereby reducing harmful residual ozone concentrations while maintaining sterilization effectiveness.
Solution Approach 2:
The patent utilizes the chemical equilibrium parameters of the ozone-oxygen system. By introducing additional oxygen through the oxygen scavenging layer, the equilibrium shifts according to Le Chatelier's principle, changing the concentration parameters of residual ozone and converting it to oxygen, thus reducing harmful effects.
2Object-affected harmful factors
If water is heated before drinking to accelerate ozone decay, then residual ozone is removed, but the process becomes impractical and undesirable for end users
Solution Approach 1:
The oxygen scavenging layer is incorporated into the packaging structure before the product reaches the consumer. The ozone removal action is performed in advance during storage and transport, eliminating the need for consumers to perform heating or other complex operations. The layer continuously scavenges ozone throughout the product shelf life.
Solution Approach 2:
The packaging structure performs the ozone removal function automatically without requiring consumer intervention. The oxygen scavenging layer self-regulates the ozone concentration through the equilibrium reaction, providing a hands-free solution that maintains water quality throughout storage and transport.
3Object-affected harmful factors
If a multilayer package structure with oxygen scavenging layer is used, then residual ozone is reduced, but the packaging complexity increases
Solution Approach 1:
The patent employs a composite packaging structure consisting of multiple functional layers: an outer layer, an oxygen scavenging layer containing oxygen-releasing compounds, and an inner layer in contact with the water. This composite structure integrates sterilization maintenance and ozone removal functions within a single packaging system.
Solution Approach 2:
The packaging is divided into distinct functional segments or layers, each performing a specific function. The oxygen scavenging layer is segmented as a separate functional component between the outer and inner layers, allowing for optimized material selection and manufacturing processes for each layer while achieving overall ozone removal functionality.
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
Effectively reduces ozone concentration in water, maintaining taste and quality without requiring heating, by driving the ozone-oxygen equilibrium to favor ozone degradation into oxygen.
Implementation Method 1
The interior layer of the structure is configured to absorb oxygen and induce the degradation of the ozone
Implementation Method 2
the semi-aromatic polyamide composite material includes an oxidizable polymer and a catalyst, wherein the oxidizable polymer comprises a blend of a crystalline polymer and an amorphous polymer which is semicrystalline and oxidizable
Data Source
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AI summary
A package arrangement comprising a structure formed by a plurality of layers including an outer layer formed of a polymer material, one or more interior layers formed of a semi-aromatic polyamide composite material, and an inner layer formed of a polymer material, and an amount of water contained within the structure, the water including an amount of ozone dissolved therein, wherein the interior layer of the structure is configured to absorb oxygen and induce the degradation of the ozone.