Hair Coloring Method Using Sectional Brushing and Inversion
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Solution Overview
Problem
Existing hair coloring methods are harmful and inefficient, leading to non-uniform color distribution and rapid fading due to inadequate application techniques and lack of precise control over dye application.
Innovation Solution
A method involving the division of hair into sections, using standard brushes to apply dyes in specific directions and combinations, followed by a decoloring agent to achieve multifaceted gradations, ensuring thorough penetration and uniformity, with a setting period to complete the coloring action.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dye is applied quickly using common professional instruments, then the coloring process is practical and fast, but the coloring action is not complete and the final result is not optimal
Solution Approach 1:
The hair is divided into multiple sections (back section, front section, crown section) and further subdivided into locks. This segmentation allows systematic application of dye to each section, ensuring complete coverage while maintaining efficiency. The method processes each section individually with proper timing, resolving the contradiction between speed and completeness.
Solution Approach 2:
The method applies dye to the roots first before distributing it to the lengths and ends. This preliminary action ensures that the root area, which requires adequate setting time for complete coloring, receives attention first. The subsequent distribution to other areas follows the proper sequence, guaranteeing optimal coloring results.
2Ease of operation
If dye is applied without brushing locks in a preferential direction, then the application is simpler, but the hair fiber is attacked and color fades quickly
Solution Approach 1:
Instead of the conventional approach of applying dye from ends to root, this method applies dye from root to ends by brushing locks in a preferential direction (from skin toward ends). This inversion of the application direction ensures uniform dye distribution, reduces hair fiber damage, and enhances color durability.
3Productivity
If dye is applied without uniform distribution, then the application process is faster, but the color is not uniform and fades quickly
Solution Approach 1:
The method treats different sections of hair with specific attention to local requirements. Each lock is brushed in a preferential direction from root to ends, ensuring uniform dye distribution in each local area. The systematic sectioning and lock-by-lock application guarantee consistent color uniformity across the entire head while maintaining reasonable processing speed.
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
This method ensures optimal hair color quality and longer-lasting results by ensuring uniform dye distribution and complete color penetration, reducing hair damage and enhancing color durability.
Implementation Method 1
the dye is distributed on the root by means of a brush, passing the brush along the direction of a separation line of the two side portions, and a second sub-step in which the brush in vertical position is moved transverse to said separation line thus indenting the dye transversally
Implementation Method 2
a decoloring agent is chosen and applied, which serves to induce lightened areas in the three color shades obtained before
Data Source
Figure 1a~1c
Figure 2a~2d
Figure 3
AI summary
A method for coloring hair is described, which includes using traditional professional instruments and utilizing hair dyes available on the market, comprising dividing, on the head of an individual, the mass of hair into a plurality of sections (1-4) to be treated individually, coloring the hair starting from a first section (1) of the head continuing with the next remaining sections (2-4) using said traditional professional instruments, said traditional professional instruments comprising at least one brush (6, 10, 60).