Keratin Lightening via Printed Oxidizing Substrate
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Solution Overview
Problem
Standard hair lightening processes fail to produce precise, unified bleached patterns and are prone to errors, storage issues, and safety risks due to the handling of oxidizing agents, which can lead to unsatisfactory results and safety hazards.
Innovation Solution
A process involving a substrate with solid chemical oxidizing agents deposited on its surface via printing, followed by application of an aqueous composition containing oxidizing and alkaline agents, allowing for precise bleached patterns and reduced storage needs and safety risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If standard lightening processes use aqueous oxidizing compositions, then lightening of keratin fibres is achieved, but precise and unified bleached patterns cannot be obtained
Solution Approach 1:
The oxidizing composition is segmented into discrete deposit zones on the substrate, with each zone containing specific oxidizing agents. This segmentation allows precise control over where lightening occurs on the keratin fibres, enabling sharp patterns while the overall substrate provides unified coverage when applied
Solution Approach 2:
The substrate is pre-treated with oxidizing composition and allowed to dry before application. This preliminary action ensures the oxidizing agents are already in place on the substrate, eliminating variability in application and ensuring unified and precise lightening results when the substrate contacts the keratin fibres during use
2Quantity of substance
If bleaching powders are stored for long term, then they occupy space and pose storage problems, but they are needed for pronounced lightening
Solution Approach 1:
The substrate with oxidizing composition is designed as a single-use disposable element. The oxidizing composition is applied in controlled amounts that are sufficient for one lightening treatment, eliminating the need for long-term storage of large quantities of bleaching powders while maintaining effective lightening performance
Solution Approach 2:
The oxidizing composition on the substrate is formulated to be stable during storage but activate effectively upon contact with moisture from the aqueous composition or the keratin fibres themselves. This parameter change from stable to active state allows long shelf life without compromising lightening effectiveness when deployed
3Ease of operation
If bleaching powders are handled during transportation and storage, then they form dust, but they are needed for lightening treatment
Solution Approach 1:
The substrate with oxidizing composition is provided as a pre-packaged, sealed, single-use element that requires no handling of loose powders. The entire treatment is applied by attaching the substrate to the keratin fibres, eliminating dust formation and irritation risks associated with transporting and storing bleaching powders
Solution Approach 2:
The substrate acts as a flexible carrier that encapsulates the oxidizing composition, preventing it from becoming airborne as dust. The thin film or sheet structure allows easy handling and application while containing the potentially irritating substances until use
4Ease of operation
If oxidizing compositions are stored in hairstyling salons, then they are readily available, but they occupy space and pose storage problems
Solution Approach 1:
The substrate with oxidizing composition is designed as a compact, single-use element that replaces bulky bottles and containers of oxidizing compositions. Multiple substrates can be stored in small spaces, maintaining product availability in hairstyling salons while dramatically reducing storage volume requirements
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 process enables the creation of sharp, millimeter-sized bleached patterns with novel optical effects, minimizing errors and storage issues while ensuring user safety and improved lightening performance.
Implementation Method 1
The lightening of keratin fibres, in particular of human keratin fibres such as the hair, is performed by oxidation of the 'melanin' pigment resulting in the dissolution and the partial or total removal of this pigment
Data Source
AI summary
The present invention relates to the field of lightening keratin fibres and more particularly to the field of lightening the hair. The present invention relates to a process for lightening keratin fibres, in particular human keratin fibres such as the hair, which consists in using on the said fibres i) a substrate comprising on its surface one or more chemical oxidizing agents preferably in solid form, and ii) an aqueous composition preferably comprising one or more chemical oxidizing agents. The present invention also relates to a process for preparing the said substrate thus pretreated.