Sealed Package With Porous Substrate For Uniform Liquid Application
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Solution Overview
Problem
Existing packaging solutions for liquid or semi-liquid compositions are inefficient in providing uniform application and often leak during use, lacking in cost-effectiveness and ease of use, especially for single or multiple use scenarios where hygiene and precise application are required.
Innovation Solution
A package design featuring a body with an interior cavity, a substrate for uniform application, and a sealable cover, where bond points control the flow of the composition based on viscosity, using liquid-permeable materials and resealable adhesives to ensure containment and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a liquid permeable material is used for the applicator, then the composition can be delivered to the surface, but the application is not accurate and uniform
Solution Approach 1:
The patent uses a porous foam applicator material that allows controlled permeation of liquid or semi-liquid compositions. The porous structure enables the composition to pass through uniformly while maintaining accurate application to the desired surface area, resolving the contradiction between ease of operation and application precision.
Solution Approach 2:
The applicator is designed with specific local properties including varying pore sizes and densities in different regions to control composition flow and distribution. This localized quality control ensures uniform application while maintaining ease of use, directly addressing the precision-uniformity contradiction.
2Reliability
If the package is designed for single use with predetermined amount, then hygiene and precise application are improved, but the device complexity increases
Solution Approach 1:
The patent combines the storage container, applicator, and sealing mechanism into a single integrated package unit. The applicator is permanently attached to the container with a resealable closure, creating a unified device that ensures hygiene and precise application without requiring complex separate components or assembly steps.
Solution Approach 2:
The package is designed as a disposable single-use unit with a predetermined amount of composition, eliminating the need for complex cleaning, sterilization, or maintenance systems. This disposable approach maintains high hygiene standards and application precision while keeping the overall device complexity manageable through simple construction.
3Manufacturing precision
If bond points are used to control composition flow based on viscosity, then uniform application is achieved, but the manufacturing process becomes more complex
Solution Approach 1:
The patent controls composition flow by varying the viscosity parameters of the adhesive bonds between the applicator and container. Different bond point viscosities and strengths are used to regulate the rate and uniformity of composition delivery, achieving precise flow control through material parameter optimization rather than complex mechanical structures.
Solution Approach 2:
The bonding process uses temporary adhesives or fixtures during manufacturing that are discarded or removed after bonding, simplifying the overall manufacturing process. The permanent bonds are designed to be simple and direct, eliminating the need for complex reusable bonding mechanisms while maintaining precise composition flow control.
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 package enables efficient, sanitary, and uniform application of liquid or semi-liquid compositions to surfaces without leakage, accommodating various viscosities and allowing for single or multiple uses while maintaining the composition's integrity.
Implementation Method 1
The seal may be a resealable adhesive for selectively opening and reclosing the package. In exemplary aspects, the adhesive is selected from polyolefin hotmelt adhesives and styrenic block-copolymer hotmelt adhesives.
Implementation Method 2
A substrate is included over the opening of the package capable of transferring the liquid or semi-liquid composition onto an exposed surface. The substrate may be liquid permeable and a non-woven material.
Data Source
AI summary
The present disclosure provides a package for storing and applying a liquid or semi-liquid composition to an exposed surface. The package has a body having a first side, a second side, a first end, a second end, and an interior cavity located between the first and second ends wherein the first and second sides connect the first end to the second end, and an opening at the first end. A liquid or semi-liquid composition, meant to be applied to the surface, is located and stored in the interior cavity of the body. A substrate is included over the opening of the package capable of transferring the liquid or semi-liquid composition onto the surface. In an exemplary aspect, the package further includes a cover portion positioned over the opening which encloses the substrate and seals the opening in the package.