Partial Hair Dyeing Applicator With Parallel Guide Members
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Solution Overview
Problem
Conventional partial hair dyeing devices struggle to apply hair dye uniformly, especially for individual users, as they often result in uneven dye application and difficulty in selectively extracting inner hair close to the scalp, leading to a complicated and inefficient dyeing process.
Innovation Solution
A partial hair dyeing device featuring a container connector with an upper and lower grasp member, both of which are hollow and slender, extending forward with parallel outlets, allowing for uniform dye application by displacing one or both members up and downward while maintaining parallelism, effectively grasping hair in a uniform layer and dispensing dye through the outlets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If hair is passed through an open groove of a nozzle member in a bundle, then partial dyeing can be performed, but the hair dye is unevenly applied to the hair
Solution Approach 1:
The invention divides the single open groove into multiple through-holes arranged in parallel. This segmentation allows the hair bundle to be distributed across multiple openings, enabling more uniform dye application to all hair strands including inner portions that were previously difficult to reach.
Solution Approach 2:
The invention transitions from a two-dimensional open groove surface to a three-dimensional array of through-holes distributed across the nozzle member. This dimensional change allows dye to be delivered from multiple depths and angles, improving penetration into the hair bundle.
2Measurement precision
If a tail comb is used to extract hair in a layer, then selective partial dyeing can be achieved, but the dyeing work becomes complicated
Solution Approach 1:
The invention combines the hair extraction function (previously requiring a separate tail comb) and the dye application function into a single integrated nozzle member. The multiple through-holes serve both to guide extracted hair and to distribute dye uniformly, eliminating the need for separate tools and simplifying the overall process.
Solution Approach 2:
The nozzle member is designed to perform multiple functions: it extracts hair through its structure, guides the hair bundles through its through-holes, and distributes dye uniformly across all hair strands. This multi-functionality replaces the need for separate tail comb and brush tools.
3Shape
If the bottom portion of an open groove presses the hair bundle, then the hair forms a roundish column shape, but it becomes difficult to apply dye to inner hair portions
Solution Approach 1:
The invention extracts the pressing function from the design by replacing the solid bottom portion with an array of through-holes. This removal of the pressing surface allows the hair bundle to maintain a more open, flattened structure rather than being compressed into a tight column, improving dye accessibility to inner hair portions.
Data Source
AI summary
An applicator (100) for applying a treatment agent to one's hair includes a container connector (110) for connection with a dispensing container (ST) accommodating therein the treatment agent, an upper guide member (120) formed in a hollow shape so as to extend forward from the container connector (110) and including an outlet formed in a lower face for dispensing the treatment agent, a lower guide member (130) disposed parallel to the upper guide member so as to oppose the outlet, and a parallel supporting body (140) that displaces at least one of the upper guide member (120) and the lower guide member (130) up and downward, while maintaining the guide members parallel to each other. With the applicator (100) an individual user can easily apply the treatment agent uniformly to the hair.