Cylindrical Tattoo Needle for Soft Shading
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Solution Overview
Problem
Current tattoo needles, such as magnum and shader, struggle to create soft shading with smoothly dissipating edges in large areas, requiring high professionalism and often result in uneven or chaotic shading, especially for beginners.
Innovation Solution
A new tattoo needle design featuring 60 or 91 single needles arranged in a cylindrical or conical shape with rounded edges, allowing for soft shading and diffuse edges regardless of needle direction, using an adapted cartridge with a membrane system to maintain consistent marking and density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a round shader needle with 24 single needles is used for dense shading, then thick lines and dense coloring are achieved, but soft shading and diffuse edges cannot be created
Solution Approach 1:
The needle bundle is segmented into individual single needles arranged in a specific pattern, allowing each needle to contribute independently to the shading effect. This segmentation enables the creation of soft shading by controlling the distribution and orientation of individual needle tips rather than relying on a dense circular arrangement.
Solution Approach 2:
Different regions of the needle bundle have different properties - the center needles are arranged differently compared to the peripheral needles. This local quality variation allows the needle bundle to create both dense coloring in the center and soft, diffuse edges at the periphery, resolving the contradiction between density and softness.
2Area of stationary object
If a magnum needle with one or two rows of needles is used for shading, then large area coverage is achieved, but shading edges appear sharp and uneven
Solution Approach 1:
The needle arrangement transitions from a two-dimensional linear or circular pattern to a three-dimensional distributed pattern. The needles are arranged in multiple rows with varying spacing and orientation, creating a volumetric distribution that produces soft, diffuse edges while maintaining large area coverage.
Solution Approach 2:
The parameters of needle arrangement - including spacing, orientation, and distribution density - are optimized to create soft shading edges. By controlling these parameters, the needle bundle achieves both large area coverage and uniform, diffuse edges, resolving the contradiction between coverage area and edge precision.
3Adaptability or versatility
If existing tattoo needles are used, then compatibility with standard machines is maintained, but creation of soft shading with smooth transitions requires high professionalism
Solution Approach 1:
The needle bundle is designed to be universal, maintaining compatibility with standard tattoo machines while enabling soft shading capabilities. The modified needle arrangement allows the same needle bundle to perform both traditional shading and soft shading techniques, eliminating the need for specialized equipment and reducing the skill barrier.
4Quantity of substance
If needles are arranged too closely together, then dense coloring is achieved, but soft shading and diffuse edges are lost
Solution Approach 1:
The needle arrangement implements local quality variation where needle density and spacing differ across the bundle. The center region has higher density for dense coloring, while the peripheral regions have lower density and greater spacing to create diffuse edges. This spatial variation in needle quality resolves the contradiction between overall density and edge diffusion.
Data Source
AI summary
The invention is a set of single needles assembled into a certain unique shape (2 options). Thanks to which it is supposed to achieve the main goal-smooth shading with evenly scattered edges and a center over large areas. The uniqueness of the form lies in the absence of analogues and the expected effect of its use. The new needle shape should make the artist's work easier.


