Solid Cosmetic Packaging Envelope for Waterless Hair Care
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Solution Overview
Problem
Conventional hair hygiene products, such as shampoos and conditioners, in liquid form face challenges like difficulty in measurement due to their liquid texture, tendency to escape, and high water requirement for rinsing, which is problematic especially in areas with limited water access. Additionally, thickened formulations often compromise cosmetic effects and leave residues.
Innovation Solution
A packaging article comprising a polymer-based multilayer envelope with a solid composition containing less than 10% water and one or more surfactants, designed to be easy to grasp, store, and measure, while providing improved cosmetic performance and environmental benefits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If liquid form is used for shampoo/conditioner, then ease of application is improved, but measurement precision deteriorates and product loss increases
Solution Approach 1:
The patent changes the physical state parameter of the cosmetic composition from liquid to solid form. This transformation allows the product to be easily measured (improving measurement precision) while still providing ease of application through its ability to dissolve or disperse in water during use.
Solution Approach 2:
The solid composition is divided into small granules or particles. This segmentation allows for easy measurement by volume or weight, prevents product loss during handling, and enables controlled dissolution in water to achieve the desired liquid consistency for application.
2Object-generated harmful factors
If thickeners are added to reduce liquid flow, then product containment is improved, but cosmetic performance deteriorates and rinsing water consumption increases
Solution Approach 1:
Instead of adding thickeners to modify the liquid composition, the patent changes the physical state from liquid to solid. This eliminates the need for thickeners that compromise cosmetic performance, while the solid granules can be contained in packaging and controlled to dissolve only during rinsing.
Solution Approach 2:
The patent extracts the thickening function from the cosmetic composition itself and replaces it with a physical state change. The solid granules provide containment stability without requiring cosmetic-active thickeners, thus preserving cosmetic performance while reducing water consumption during rinsing.
3Measurement precision
If solid granules are used, then measurement precision is improved, but foaming performance and dissolution speed deteriorate
Solution Approach 1:
The solid composition is formulated with specific local qualities including appropriate granule size distribution, porosity, and surface area characteristics. These localized properties enable rapid dissolution and effective foaming performance while maintaining measurement precision, as the granules are designed to break down quickly upon contact with water.
4Quantity of substance
If solid composition is used, then transport efficiency is improved, but dissolution speed and foaming start time deteriorate
Solution Approach 1:
The patent optimizes parameters of the solid composition including reducing particle size, increasing porosity, and adjusting surface area to volume ratio. These parameter changes enable the solid granules to dissolve rapidly upon contact with water, achieving fast foaming start time while maintaining the space and weight efficiency benefits of solid form for transport.
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 article allows for easy measurement and storage, reduces water usage during rinsing, and provides effective foaming and rinsing properties, while maintaining good cosmetic performance and avoiding residues.
Implementation Method 1
an envelope defining at least one cavity, the envelope being composed of at least two layers assembled together in order to form just one unit film
Data Source
AI summary
The present invention relates to a packaging article comprising a polymer-based multilayer envelope defining a cavity, and a solid composition based on one or more surfactant(s), said composition being contained in the cavity defined by the envelope. The invention also relates to a process for cosmetic treatment of keratin materials, in particular human keratin fibres such as the hair, using such a packaging article, and also to the use of said packaging article for washing and/or conditioning keratin materials, in particular human keratin fibres such as the hair.