Single Use Pad With Oil-Impervious Sealed Packaging
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Solution Overview
Problem
Existing single-use packaging for oily liquids or fluids does not provide a convenient method to apply the oil to the skin without making a mess, as users must either rub the oil on by hand or use an additional absorbent material.
Innovation Solution
A single-use packaging design featuring a flexible, oil-impervious sheet with a sealed interior space containing a folded absorbent pad impregnated with oily fluid, allowing for easy extraction and unfolding, which prevents leakage and mess during application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If single-use packets contain only oily liquid without application mechanism, then packaging simplicity is improved, but ease of operation deteriorates due to messiness and need for additional materials
Solution Approach 1:
The patent combines the oily liquid container and the application mechanism (absorbent pad with applicator) into a single integrated packet. The absorbent pad is positioned to contact the oily liquid through a perforated barrier, allowing the liquid to be absorbed and applied to the skin directly from the packet without requiring separate containers or additional materials.
Solution Approach 2:
The patent introduces an absorbent pad as an intermediary between the oily liquid and the skin. The pad absorbs the oily liquid from the container and transfers it to the skin surface in a controlled manner, eliminating the messiness of direct hand application while maintaining the simplicity of a single-use packet.
2Object-generated harmful factors
If absorbent pad is pre-impregnated with oily fluid in sealed packaging, then application cleanliness is improved, but device complexity increases due to sealed interior space and folding mechanism
Solution Approach 1:
The patent segments the packaging into distinct functional zones: a sealed interior space containing the oily liquid, a perforated barrier separating the liquid from the pad, and the absorbent pad itself. This segmentation allows the oily liquid to be contained and controlled while enabling clean transfer to the skin through the designated application surface.
Solution Approach 2:
The patent employs a nested structure where the absorbent pad is positioned within the sealed interior space of the packet, and the applicator tip is nested within the pad structure. This nested arrangement allows compact packaging while maintaining the functionality of each component during use.
3Adaptability or versatility
If oily liquid is contained in flexible packaging, then packaging adaptability is improved, but reliability deteriorates due to potential leakage and rupture
Solution Approach 1:
The patent uses a flexible foil packet with a sealed interior space to contain the oily liquid. The flexible nature of the packaging allows it to be easily stored and handled, while the sealed construction prevents leakage. The perforated barrier within the packet provides a controlled path for liquid transfer, preventing uncontrolled leakage during normal use.
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 packaging allows for a clean and convenient application of oily fluid onto the skin by redistributing the fluid within the pad, maintaining its freshness and preventing leakage, while the absorbent pad provides a controlled and efficient delivery of the oil.
Implementation Method 1
a folded absorbent pad impregnated with oily fluid
Implementation Method 2
the absorbent pad provides a controlled and efficient delivery of the oil
Implementation Method 3
when pressure is applied to the walls, the oily fluid within the packaging redistributes itself by flowing slightly away from the point at which pressure is applied
Implementation Method 4
a flexible, oil-impervious sheet with a sealed interior space containing a folded absorbent pad
Data Source
AI summary
A single use pad impregnated with an oily liquid is disposed within substantially flat packaging that is opaque and leakproof and is openable by tearing at a tear notch. In one embodiment, the package may be torn open and a pad impregnated oily liquid may be removed therefrom, to apply the oily liquid to the skin.


