Encapsulated Odor Control in Thermoplastic Films
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Solution Overview
Problem
Conventional thermoplastic films and bags struggle with effectively controlling malodors, as existing fragrance and neutralizing components lose potency quickly, are limited in functionality, and fail to address odors from the center of the bag without direct contact.
Innovation Solution
Incorporating an encapsulated odor control component that releases odor-control active only when exposed to malodor particles, allowing for targeted odor control without premature release, and featuring a color indicator to signify performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If volatile fragrance or odor neutralizer is used to control odors, then odor control capability is improved, but effectiveness diminishes over relatively short period of time
Solution Approach 1:
The odor control component is prepared in advance by encapsulating the neutralizing agent within a capsule structure before use. This preliminary encapsulation action protects the active ingredient from premature degradation or evaporation, allowing it to remain effective throughout the entire intended usage period of the film.
Solution Approach 2:
A flexible capsule shell is used to enclose the odor control active. The shell maintains structural integrity over extended periods while allowing controlled interaction with malodor particles, thereby extending the duration of effectiveness without sacrificing odor control capability.
2Duration of action of moving object
If non-volatile neutralizing component is used, then effectiveness is maintained over long periods, but direct contact with malodor source is required reducing functionality
Solution Approach 1:
The volatility parameter of the neutralizing component is modified through encapsulation. The active ingredient is enclosed in a capsule that provides long-term stability like non-volatile substances, while the capsule structure enables indirect contact mechanisms (such as vapor phase interaction or diffusion through the film) that provide the versatility of volatile components.
Solution Approach 2:
The capsule shell acts as an intermediary between the neutralizing agent and the malodor source. It allows the active ingredient to interact with malodor particles without requiring direct contact between the solid neutralizer and the trash, enabling versatility while maintaining long-term effectiveness.
3Object-affected harmful factors
If fragrance is applied to thermoplastic film, then malodors are masked, but fragrance loses potency before trash is placed in bag
Solution Approach 1:
The odor control active is pre-encapsulated and integrated into the film structure before the bag is put into service. This preliminary preparation ensures the active ingredient is in position and protected, ready to function immediately when malodor particles are present, eliminating the time loss associated with premature fragrance degradation.
Solution Approach 2:
The odor control active is extracted from its unstable free state and placed into a protected encapsulated form. This extraction from the volatile state and placement into a stable encapsulated form prevents premature potency loss while maintaining the ability to mask malodors when needed.
4Reliability
If neutralizing component is coated on bag surface, then malodors are neutralized, but components in center of bag without contact are not controlled
Solution Approach 1:
The encapsulated odor control component is designed with multi-functionality. It can operate through multiple mechanisms: direct contact neutralization when trash touches the film, and indirect neutralization through vapor phase interaction or diffusion for trash in the center of the bag. This universality ensures comprehensive coverage throughout the entire bag volume.
Solution Approach 2:
The encapsulated component serves as an intermediary that can interact with malodor particles through multiple pathways. The capsule structure allows the active ingredient to reach malodor sources whether they are in direct contact with the film or positioned in the center of the bag, extending the coverage range while maintaining reliable neutralization.
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 encapsulated odor control component maintains effectiveness over time, controls odors comprehensively, and indicates release activity, ensuring prolonged odor management and user awareness.
Implementation Method 1
The encapsulated odor control component can be configured to release the odor-control active from the encapsulant when exposed to malodor particles
Implementation Method 2
the thermoplastic film further includes a color indicator that changes color to indicate performance of the encapsulated odor control component. For example, the color indicator can change from a first color to a second color based, at least in part, on the release of the odor-control active
Data Source
AI summary
The present disclosure relates to a thermoplastic film that includes a layer of thermoplastic material and an encapsulated odor control component. The encapsulated odor control component can include an odor-control active encapsulated within an odor-control encapsulant. Additionally, the encapsulated odor control component can be configured to release the odor-control active from the encapsulant when exposed to malodor particles. The thermoplastic film can further include a color indicator that changes color to indicate performance of the encapsulated odor control component. For example, the color indicator can change from a first color to a second color based, at least in part, on the release of the odor-control active.