Gel Nail Sticker UV Curing Gloss and Damage Reduction
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Solution Overview
Problem
Existing nail art methods, such as UV gel and dry-type nail stickers, face issues with durability, adhesiveness, ease of application, damage during removal, and maintaining glossiness, with UV gel requiring harmful solvents for removal and artificial nails lacking flexibility.
Innovation Solution
A gel nail sticker comprising a lower laminated part with a flexible material and an upper laminated part that cures to a solid state upon UV irradiation, featuring a transparent coated layer for glossiness, and including ultraviolet curing and heat dry materials for improved durability and removability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If UV gel is applied directly on the natural nail, then the nail becomes glossy and shiny with excellent glossiness, but the natural nail is severely damaged after detaching the UV gel layer due to immersion in harmful solvents
Solution Approach 1:
The nail art product is divided into two separate components: a decorative film layer containing UV-curable resin for glossiness, and a separate adhesive layer containing solvents for attachment. This segmentation allows the glossiness function to be achieved without requiring harmful solvent immersion to remove the entire UV gel layer, as only the adhesive layer needs removal which causes minimal damage to the natural nail.
Solution Approach 2:
The harmful solvent immersion step is extracted and eliminated from the removal process. The adhesive layer is formulated to be removable without requiring prolonged exposure to harsh solvents, thereby preventing severe damage to the natural nail while maintaining the glossiness provided by the UV-cured decorative film.
2Ease of operation
If dry-type nail sticker is used, then the application process is simple and quick, but the durability after attachment is very low
Solution Approach 1:
The nail art product combines multiple material functions in a composite structure: the decorative film provides UV-curable resin for durability and glossiness, while the adhesive layer provides bonding capability. This composite approach maintains the simplicity of sticker application while achieving the durability of UV-cured gel, resolving the contradiction between ease of application and long-term reliability.
3Reliability
If artificial nail is used, then the durability is excellent, but the flexibility and elasticity are low causing poor adhesiveness and esthetic impression
Solution Approach 1:
The material properties are changed by using UV-curable resin in the decorative film layer, which provides both durability and flexibility. The resin remains flexible after curing, allowing the nail art to conform to the natural nail shape and maintain good adhesiveness, while still providing the durability needed for long-term wear.
4Illumination intensity
If UV gel layer is formed on the natural nail, then the nail art has excellent glossiness and flexibility, but the process time for application and curing is long
Solution Approach 1:
The decorative film with UV-curable resin is pre-applied and positioned on the nail before the adhesive layer is applied. This preliminary action allows the glossiness layer to be in place before the final adhesive layer is applied and cured, reducing the overall application time while maintaining the excellent glossiness and flexibility characteristics of UV gel.
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 easy, quick application with improved durability and adhesiveness, minimizes damage during removal, and maintains deep glossiness, allowing beginners to achieve professional-looking nail art with reduced time and cost.
Implementation Method 1
The upper laminated part is in a flexible semi-solid state so as to correspond to the curved surface of the nail or the toenail before being attached to the nail or the toenail, and is cured to a solid state while maintaining a form attached to the nail or the toenail when an ultraviolet ray is irradiated to the upper laminated part after the upper laminated part is attached to the nail or the toenail.
Data Source
AI summary
Provided is a gel nail sticker including: a lower laminated part which is a part directly attached to a nail or a toenail, and has a color or a pattern, and is formed of a flexible material to correspond to a curved surface of the nail or the toenail; and an upper laminated part which is a transparent coated layer positioned on the lower laminated part and providing glossiness to a color or a pattern of the lower laminated part, and is in a flexible semi-solid state to correspond to the curved surface of the nail or the toenail before being attached to the nail or the toenail, and is cured to a solid state while maintaining a form attached to the nail or the toenail when an ultraviolet ray is irradiated to the upper laminated part after the upper laminated part is attached to the nail or the toenail.