Multi-Layer Diaper Disposal Pouch for Leak and Odor Containment
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Solution Overview
Problem
Traditional plastic bags fail to effectively contain and retain dog feces due to their thin structure, which often results in leakage and odor issues, and there is a lack of commercially viable alternatives for pet waste disposal at similar prices.
Innovation Solution
A foldable diaper changing mat with multiple layers of plastic film and an absorbent layer, designed to enclose soiled diapers by creating separate pockets that prevent leakage through a double inversion process, allowing for secure containment of waste without direct contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a thin single layer of plastic grocery bag is used to contain fecal matter, then the bag is lightweight and inexpensive, but the fecal matter is not well retained and odor is not contained
Solution Approach 1:
The plastic bag is divided into multiple layers (first plastic layer, second plastic layer, third plastic layer) with each layer serving specific functions. The first layer provides initial containment, the second layer reinforces retention, and the third layer seals the contents, collectively solving the retention problem while maintaining manageable complexity through functional segmentation.
Solution Approach 2:
The invention uses a composite structure combining multiple plastic layers with different properties. The layers are bonded together to create a multi-layer composite material that provides enhanced retention, odor containment, and structural integrity compared to single-layer plastic bags, while remaining lightweight and disposable.
2Reliability
If a multi-layer pouch structure is used to improve containment, then retention and odor containment are enhanced, but the manufacturing complexity increases
Solution Approach 1:
The invention merges multiple plastic layers into a single integrated pouch structure where the first, second, and third plastic layers are bonded together as one unit. This combining approach maintains enhanced containment effectiveness while simplifying manufacturing compared to assembling separate components, as the multi-layer structure can be produced in a single continuous process.
Solution Approach 2:
The multi-layer pouch structure serves multiple functions simultaneously: the first layer provides initial containment, the second layer reinforces retention, the third layer seals contents, and the integrated structure provides structural integrity. This multi-functionality within a single manufactured component achieves enhanced containment without proportionally increasing manufacturing complexity.
3Reliability
If traditional plastic bags are used for diaper disposal, then the bags are simple and inexpensive, but liquid feces leak out during changing
Solution Approach 1:
The pouch is pre-configured with multiple layers and bonding structures before use. The first, second, and third plastic layers are already bonded together in the correct configuration, with the pouch ready to receive and contain the diaper. This preliminary preparation ensures leak prevention is built into the structure itself, while keeping operation simple as the user only needs to place the diaper in the pre-formed pouch.
Data Source
AI summary
A foldable diaper changing mat that includes a foldable base layer of plastic film having a surface engaging side and an upward facing side and a top edge and a bottom edge; and an infant buttocks receiving pad portion having a top end facing the top edge of the foldable base layer of plastic film and a bottom end facing the bottom edge of the foldable base layer of plastic film, wherein the infant buttocks receiving pad portion is engaged with the upward facing side and proximate the bottom edge of the foldable base layer of plastic film. The infant buttocks receiving pad portion has at least one intermediate plastic layer and a top absorbent containing layer. The infant buttocks receiving pad portion typically has a top edge facing pocket and a bottom edge facing pocket that are separated from one another.