Hair Accessory Composite Material Resilience
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Solution Overview
Problem
Conventional hair accessories made from single plastic materials like ABS, PC, or PP suffer from fractures, white crease marks, and lack of flexibility and rebound elasticity, leading to poor user experience and safety concerns.
Innovation Solution
A hair accessory composed of a polymerized plastic mixture with a specific ratio of acrylonitrile-butadiene-styrene resin, thermoplastic rubber, defoamer, lubricant, and optical brightener, providing Shore Hardness between 41 D and 60 D for flexibility, rebound elasticity, and plasticity, preventing white crease marks and breaks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If single plastic materials like ABS, PC, or PP are used for manufacturing hair accessories, then high rigidity and manufacturing ease are achieved, but flexibility, rebound elasticity, and resistance to fractures are insufficient
Solution Approach 1:
The patent applies composite materials by combining multiple plastic materials (ABS resin, PC, PP) in specific ratios to create a composite plastic material that exhibits both high rigidity and flexibility, rebound elasticity, and resistance to fractures. This composite material resolves the contradiction by integrating the strengths of individual materials while eliminating their individual weaknesses.
Solution Approach 2:
The patent changes the material parameters by adjusting the composition ratios of different plastic materials and controlling molecular weight distribution. By optimizing these parameters, the composite plastic material achieves a balance between rigidity, flexibility, and elastic recovery, resolving the contradiction between strength and material complexity.
2Shape
If single plastic materials with high Shore Hardness are used, then rigidity is improved, but flexibility and resistance to white crease marks deteriorate
Solution Approach 1:
The composite plastic material combines multiple polymers with different molecular characteristics, creating a material that can deform flexibly without generating white crease marks. The synergistic effect of the composite materials allows the hair accessory to maintain shape integrity during flexible deformation.
Solution Approach 2:
The patent applies local quality by creating regions with different material properties within the composite structure. The material exhibits different characteristics in different areas, allowing localized flexibility while maintaining overall structural integrity and preventing surface defects.
3Force
If single plastic materials with low Shore Hardness are used, then softness is improved, but rebound elasticity is lost
Solution Approach 1:
The composite plastic material leverages the elastic properties of some components and the structural strength of others. This combination enables the material to provide both rebound elasticity for hair securing and structural integrity to prevent deformation damage.
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 hair accessory is foldable, deformable, and returns to its initial state without cracks or breaks, ensuring safety and comfort by avoiding scalp compression and damage, while maintaining resilience and a bright white effect.
Implementation Method 1
the hair accessory under effect of an external force is foldable and deformable without white crease marks, cracks, or complete breaks and is able to rebound and return to initial status under resilience after releasing of the external force
Implementation Method 2
the hair accessory under effect of an external force is foldable and deformable without white crease marks, cracks, or complete breaks
Data Source
AI summary
The present invention provides a hair accessory characteristic of Shore Hardness between 41 D and 60 D and made from a polymerized plastic mixture including acrylonitrile-butadiene-styrene (ABS) resin, thermoplastic rubber (TPR), defoamer, lubricant and optical brightener. The hair accessory which is bent and deformed under effect of a tensional stress does not induce white crease marks, cracks or complete breaks and is able to rebounds and returns to initial status after releasing of the tensional stress. The hair accessory with advantages including flexibility, rebound elasticity and plasticity does not compress or hurt a user's scalp and contributes to safety use when the user takes the hair accessory to comb her hairs.