UV-LED Curing Artificial Nail 3D Printing System
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Solution Overview
Problem
Existing methods for producing artificial nails are costly, time-consuming, and pose health risks due to hazardous substances, with limitations in design flexibility and durability, including slow hardening and peeling issues with traditional manicures, and harmful ingredients in adhesives.
Innovation Solution
A 3D printing method using a device capable of adjusting the Z-axis, which recognizes nail information and designs to form a 2D/3D shape with a UV-LED curing system, employing an adhesive layer with nourishing ingredients and minimizing direct skin exposure, and embedding a Near Field Communication chip for enhanced functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional manicure methods are used, then design flexibility is limited, but production cost and time investment are high
Solution Approach 1:
The patent employs UV-LED curing technology to change the chemical parameters of nail polish, enabling rapid hardening from liquid to solid state within seconds. This parameter change in curing mechanism allows for complex designs to be applied and fixed quickly, resolving the contradiction between design flexibility and production time
Solution Approach 2:
The patent replaces traditional mechanical air-drying methods with UV-LED photopolymerization. Instead of relying on evaporation and oxidation processes, the nail polish contains photoinitiators that trigger rapid cross-linking when exposed to UV-LED wavelengths, substituting a chemical-optical system for mechanical drying and achieving both design freedom and time efficiency
2Speed
If UV lamp is used for hardening gel nail, then hardening speed is improved, but skin cancer risk increases due to direct UV exposure
Solution Approach 1:
The patent applies local quality by using UV-LED lights with specific wavelength ranges (385nm, 395nm, 405nm) targeted precisely at the nail area. The LED chips are positioned to emit UV energy only where needed on the nail surface, avoiding unnecessary exposure to surrounding skin. This localized UV application maintains rapid hardening speed while minimizing harmful exposure to healthy skin tissues
Solution Approach 2:
The patent changes the physical parameters of UV radiation by using LED technology instead of traditional mercury lamps. The UV-LEDs emit narrow-band wavelengths with peak intensities at 385nm, 395nm, and 405nm, which are sufficient to activate photoinitiators in the nail polish but represent a more controlled and potentially safer form of UV exposure compared to broad-spectrum UV lamps
3Strength
If adhesive is used for attaching artificial nail, then attachment strength is improved, but nail damage occurs due to harmful ingredients
Solution Approach 1:
The patent uses composite materials in the adhesive layer combining natural polymers (chitosan, hyaluronic acid) with functional components. This composite approach provides both strong adhesion through the polymer matrix and nail-nourishing properties through the bioactive ingredients, eliminating the need for harsh chemicals like formaldehyde and toluene while maintaining attachment strength
Solution Approach 2:
The patent converts the traditional harmful adhesive function into a beneficial one by incorporating nail-nourishing ingredients (vitamins, collagen, chitosan) into the adhesive formulation. The same material that provides attachment strength also delivers nutritional benefits to the nail, transforming a potentially harmful substance into a therapeutic agent that strengthens nails while being attached
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
Enables rapid, cost-effective production of customizable artificial nails with improved durability and health protection by preventing peeling and reducing exposure to harmful UV rays, while allowing for various designs and nourishing the nail with aqueous ingredients.
Implementation Method 1
a composition layer which is cured by UV-LED irradiation
Data Source
AI summary
Methods and devices for producing artificial nails are disclosed, comprising: automatically recognizing user nail information by means of a 3D scanner (S100); recognizing a selected nail decoration design of a 2D or 3D form by means of a UV 3D printer (S200); a step in which the UV 3D printer, equipped with a device capable of adjusting a Z axis, forms a decoration layer corresponding to a curved surface of a user's nail shape with the nail decoration design recognized in step S200, on the basis of the user nail information recognized in step S100 (S300); a step in which the UV 3D printer forms an adhesive layer to be attached with the decoration layer produced in step S300; and a step of completely curing the decoration layer and the adhesive layer in a short time by subjecting same to heat treatment by using a UV lamp of the UV 3D printer, thereby printing an artificial nail in which the adhesive layer is coupled to the bottom of the decoration layer.