Custom False Nail Manufacturing via 3D Mold and Pre-Adhesive Deposition
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Solution Overview
Problem
Current methods for manufacturing false nails are either unsatisfactory in lengthening and unifying nails, require professional skill and time, or involve adhesives that are difficult to apply uniformly, and may lead to nail damage or infection if not properly maintained.
Innovation Solution
A process involving 3D digital data acquisition to create a mold using additive manufacturing, followed by deposition of an adhesive composition and a coating material, allowing for the production of tailor-made false nails that match the natural nail shape without the need for additional adhesive application, and can be easily applied and removed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional false nail application techniques (plastic base with resin) are used, then nail lengthening and unifying is achieved, but the process requires considerable skill and takes more than 30 minutes
Solution Approach 1:
The false nail is pre-formed with adhesive already applied to the inner face before delivery to the user. This preliminary preparation eliminates the need for the user to apply adhesive during the application process, reducing both time and skill requirements while maintaining secure attachment.
Solution Approach 2:
The false nail system is designed to be self-adhesive, allowing the user to apply it without requiring separate adhesive application steps. The pre-applied adhesive enables the false nail to attach directly to the natural nail through simple pressing and holding actions that any user can perform.
2Reliability
If adhesive is applied to the nail for false nail attachment, then secure bonding is achieved, but uniform application without holes or overthicknesses is difficult and requires professional skill
Solution Approach 1:
Adhesive is pre-applied to the inner face of the false nail in a controlled manufacturing environment, ensuring uniform distribution without holes or overthicknesses. This eliminates the difficulty of achieving uniform adhesive application during user application, while maintaining reliable bonding through the pre-prepared adhesive layer.
3Manufacturing precision
If false nails are made to match exact nail shape through 3D acquisition and cutting-out, then precise fit is achieved, but the process is complex and requires professional equipment
Solution Approach 1:
The false nail is designed with a universal adaptation mechanism where the pre-applied adhesive and flexible structure allow a single false nail design to conform to various natural nail shapes and sizes. This reduces manufacturing complexity by eliminating the need for customized 3D scanning and cutting equipment while maintaining precise fit through material flexibility and adhesive bonding.
4Length of moving object
If conventional resin-based false nails are applied, then nail lengthening is achieved, but the natural nail may soften or develop infections if covered with resin for long periods
Solution Approach 1:
The false nail is designed with a porous or permeable structure that allows breathability and moisture vapor transmission. This prevents trapped moisture and reduces the risk of nail softening or infections while maintaining the lengthening function, as the porous material allows air circulation between the false and natural nail.
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 process enables the production of false nails that are easily applied and removed, maintaining nail health while providing a durable and aesthetically pleasing solution without the need for professional expertise, ensuring precise fit and minimizing the risk of nail damage or infection.
Implementation Method 1
producing by additive manufacture, from 3D digital data originating from the acquisition of a relief, especially that of the finger intended to receive the false nail, a mold using a first material
Implementation Method 2
depositing onto the mold a layer formed from at least one adhesive composition
Data Source
AI summary
The present invention relates to a process for manufacturing a false nail, comprising the following steps: a) producing by additive manufacture, from 3D digital data originating from the acquisition of a relief, especially that of the finger intended to receive the false nail, a mold using a first material, b) depositing onto the mold a layer formed from at least one adhesive composition, c) depositing onto the mold at least one layer of a coating of a second material, different from the first, so as to form the false nail.