Cellulose Cosmetic Container Closure With Groove Sealing Skirts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Cosmetic product containers made partially or fully of cellulose materials face issues with sealing integrity due to geometric fluctuations caused by moisture exposure, leading to defective sealing over time.
Innovation Solution
A cosmetic product packaging assembly with a closure element featuring a sealing element comprising inner and outer sealing skirts that define a groove, ensuring the neck's geometry is maintained by clamping, even with geometric fluctuations, through radially inner and outer interference regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the container neck is made of cellulose material to reduce environmental impact, then recyclability and degradability are improved, but sealing integrity deteriorates over time due to geometric fluctuations caused by moisture exposure
Solution Approach 1:
The sealing element is divided into distinct functional zones: a first sealing zone with a sealing bead for initial sealing, and a second sealing zone with a groove for geometric stabilization. This segmentation allows each zone to address specific aspects of the sealing problem independently.
Solution Approach 2:
The groove in the second sealing zone is pre-configured to receive and stabilize the neck geometry before the final sealing action occurs. This preliminary geometric stabilization prevents moisture-induced deformations from compromising the seal.
Solution Approach 3:
The sealing element acts as an intermediary component between the closure element and the cellulose neck. It compensates for the neck's geometric fluctuations through its compliant sealing zones, maintaining reliable sealing without requiring the neck itself to be geometrically stable.
2Adaptability or versatility
If the neck geometry is allowed to fluctuate freely upon moisture exposure, then adaptability to environmental conditions is improved, but contact regions with the closure element are modified leading to defective sealing
Solution Approach 1:
The sealing element exhibits local quality variations: the first sealing zone has a protruding sealing bead for initial contact, while the second sealing zone has a groove for geometric constraint. Each local region performs a different function to collectively solve the sealing problem.
Solution Approach 2:
The sealing element's geometry is designed to change its effective sealing parameters based on the neck's moisture-induced deformations. The compliant sealing bead and groove configuration allow the sealing element to adapt its contact pressure and geometry to maintain sealing despite neck fluctuations.
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 ensures long-term sealing integrity by guiding and gripping the neck, maintaining contact regions despite geometric changes, thus preventing defective sealing.
Implementation Method 1
ensuring the neck's geometry is maintained by clamping, even with geometric fluctuations, through radially inner and outer interference regions
Implementation Method 2
defining a radially inner interference region, a radially outer interference region and a frontal interference region
Data Source
AI summary
The invention relates to a cosmetic product packaging assembly comprising a container made of cellulose material extending along a longitudinal axis (X) and a closure element (3), wherein the closure element (3) is provided with a sealing element (4) having a radially inner sealing skirt and a radially outer sealing skirt that together define a groove, and wherein, when the closure element (3) closes the container, the neck (21) of the container is partially received in the groove of the sealing element (4) and defines therewith a radially inner interference region, a radially outer interference region and a frontal interference region, said inner interference region and outer interference region having an at least partial overlap in projection on the longitudinal axis (X).