Biodegradable Cosmetic Container with Friction-Reducing Plunger Coating
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Solution Overview
Problem
Biodegradable paper-based cosmetic containers with fluid or gelatinous substances face issues of leakage and increased friction, which compromise their functionality and structural integrity.
Innovation Solution
A leak-resistant low-friction cosmetic container and applicator featuring a tube with a plunger member coated in paper to reduce friction and prevent leakage, utilizing a paper layer to maintain contact with the interior chamber and prevent material from leaking, while allowing controlled dispensing of viscous substances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a paper-based container is used to hold viscous cosmetic substances, then the container is biodegradable and environmentally friendly, but the paper foundation becomes oversaturated resulting in leakage and reduced structural integrity
Solution Approach 1:
The patent uses a composite structure combining a paper-based exterior shell with a plastic-lined interior chamber. The plastic lining acts as a barrier layer that prevents viscous cosmetic substances from saturating the paper foundation, thereby eliminating leakage while maintaining the biodegradable paper exterior for environmental sustainability.
2Reliability
If tight tolerances are applied between mechanical components to prevent leakage pathways, then leakage is reduced, but the dispensing attributes are damaged by adding unwanted friction to the mechanisms
Solution Approach 1:
The patent employs a flexible plastic lining within the container that conforms to the mechanical components (plunger and interior chamber). This flexible barrier prevents leakage through tight sealing while maintaining smooth dispensing by allowing the plunger to move freely without excessive friction, as the flexible material adapts to the motion rather than requiring rigid tight tolerances.
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 solution effectively prevents leakage and reduces friction, ensuring the cosmetic substance is dispensed without saturating the container, maintaining its structural integrity and functionality.
Implementation Method 1
a paper layer on an outer surface of the plunger member configured to reduce friction between the outer surface of the plunger member and the interior chamber of the tube
Implementation Method 2
The plunger member is configured to elevate the material through the interior chamber of the tube via an upward force applied to the second side of the plunger member
Data Source
AI summary
A material applicator for cosmetic substances is provided. The material applicator includes a leak-resistant and low-friction container including a bottom portion functioning as a tube, an affixable top portion, and a plunger member configured to internally dispense the cosmetic substance from the material applicator. The plunger member further including a fluid-resistant friction-reducing coating made of polylactic acid (PLA) and being configured to slidably and frictionally traverse an interior chamber of the material applicator while preventing leaking of the cosmetic substance from the material applicator.