Dust bag with microcapsules
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Solution Overview
Problem
Dust bags develop unpleasant odors due to decomposition of organic particles, and existing solutions like odor-absorbing pearls or fragrances require additional packaging to prevent premature consumption, leading to increased costs and waste.
Innovation Solution
Incorporating microcapsules with active substances like perfumes, antimicrobial agents, or odor-binding substances into the dust bag material, which are released only upon mechanical action from dust particles, preventing odor release during storage and allowing targeted odor control and disinfection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If odor-absorbing beads or perfume-impregnated carrier material are incorporated into the dust bag material, then odor control is improved, but additional packaging material is required to prevent premature consumption of active ingredients
Solution Approach 1:
The active ingredient is extracted from the carrier material and encapsulated in microcapsules, separating the fragrance substance from the material it is impregnated into. This allows the active ingredient to be protected within microcapsules while the carrier material serves only as a structural support, eliminating the need for complex multi-layer packaging.
Solution Approach 2:
Microcapsules with thin wall structures are used to encapsulate the active ingredient. These flexible microcapsule shells protect the active ingredient during storage while allowing controlled release when the dust bag is in use, replacing the need for rigid multi-layer packaging films.
2Duration of action of moving object
If microcapsules are incorporated into the dust bag material, then controlled release of active ingredient is achieved, but manufacturing complexity increases
Solution Approach 1:
The microcapsules are pre-formed and then incorporated into the dust bag material during manufacturing. This preliminary preparation of microcapsules allows for standardized production and simplifies the integration process into the dust bag, making the manufacturing process more manageable despite the added complexity.
Solution Approach 2:
The microcapsules are designed with varying wall thicknesses (at least 30% deviation from mean thickness) to create different release rates. This parameter variation allows controlled release over different time periods (1-4 hours to 4-12 hours) without requiring complex manufacturing processes, as the variation is introduced during microcapsule formation.
3Use of energy by moving object
If microcapsules with varying wall thickness are used, then staggered release of active ingredient is achieved, but manufacturing precision requirements increase
Solution Approach 1:
The microcapsules are intentionally manufactured with controlled variations in wall thickness (at least 30% deviation from the mean). This parameter change creates different release rates for different microcapsules, enabling staggered release of the active ingredient. The variation is controlled within acceptable ranges to achieve the desired release profile without requiring extreme manufacturing precision.
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 microencapsulated dust bags effectively prevent odor release during storage and provide controlled odor elimination and disinfection, reducing waste and costs associated with additional packaging.
Implementation Method 1
the capsule material has been at least partially worn away by mechanical action of moving dust particles
Implementation Method 2
an active ingredient or a mixture of active ingredients is completely encapsulated by a capsule material
Data Source
AI summary
The bag has microcapsules provided with a capsule shell and a microencapsulated active substance or active substance mixture. The microencapsulated active substance is applied on a material layer of the bag and/or located between material layers of the bag. The micro-encapsulated active substance contains a perfume, an antimicrobial agent, an odor-binding substance and/or an oxidizing substance. The microcapsules are fixed on a material surface in interior of the bag by gluing or introduction into a porous carrier structure.