Removable Color Layer for Artificial Nail Coatings
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Solution Overview
Problem
Conventional nail coatings either lack the ease of removal associated with polishes or require damaging processes to remove artificial nails, as they are either easily scratched and removable or highly durable but difficult to remove.
Innovation Solution
A 3-D thermoset lattice interpenetrated by an organic solvent-dissolvable resin, which provides enhanced adhesion and scratch resistance while allowing for solvent-induced 'unzipping' for quick and gentle removal, using reactive monomers and polymers like polypropylene glycol-4-monomethacrylate and cellulose esters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional artificial nails use thermoset polymers to achieve enhanced adhesion and durability, then the coating becomes highly durable and scratch resistant, but the removal process becomes difficult and time-consuming requiring 30-90 minutes of solvent soaking and mechanical abrasion
Solution Approach 1:
The patent segments the nail coating system into multiple layers with different functions: a basecoat layer containing thermoset polymers for adhesion and durability, and a separate color layer for aesthetics. This segmentation allows the basecoat to maintain strong adhesion while the overall system enables easier removal through the color layer's design
Solution Approach 2:
The patent changes the chemical parameters of the coating system by using specific thermoset polymers (epoxy, polyester, vinyl esters) with controlled molecular weights and functional groups. These parameter changes enable the coating to achieve firm adhesion initially, then allow controlled removal through solvent interaction that disrupts the polymer network
2Ease of operation
If conventional nail polishes use non-reactive solvents and simple solids to achieve ease of removal, then the coating can be easily removed within one minute, but the adhesion and durability are significantly reduced making the coating easily scratched and peeled
Solution Approach 1:
The patent creates a composite nail coating system combining thermoset polymers (for strength and adhesion) with reactive monomers and oligomers (for flexibility and controlled removal). This composite structure achieves both firm adhesion during wear and ease of removal when needed, resolving the contradiction between durability and removability
Solution Approach 2:
The patent introduces a basecoat layer as an intermediary between the natural nail and the color layer. This basecoat contains thermoset polymers that provide strong adhesion to the nail plate, while its chemical composition allows it to serve as a mediator that enables controlled removal of the entire coating system without damaging the 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
Enables durable nail coatings that adhere for extended periods without damaging the natural nail and can be easily removed in a short time using organic solvents, avoiding abrasion and prolonged solvent exposure.
Implementation Method 1
a 3-dimentional (3-D) thermoset lattice interpenetrated by a network comprising an organic solvent-dissolvable resin
Implementation Method 2
conventional artificial nails are comprised of chemically reactive monomers, and/or oligomers, in combination with reactive or non-reactive polymers to create systems which are typically 100% solids and do not require non-reactive solvents. Upon pre-mixing and subsequent application to the nail plate, or application and exposure to UV radiation, a chemical reaction ensues resulting in the formation of a long lasting, highly durable cross-linked thermoset nail coating
Data Source
AI summary
The present disclosure relates to a nail coating system comprising a basecoat, a color layer, and a topcoat. The system of the present disclosure may be applied to natural and/or pre-existing artificial nail coatings. The present disclosure relates generally to compositions for natural and artificial nail coatings, and particularly, but not by way of limitation, to polymerizable compositions and color layers polymerized therefrom. The disclosure further relates to methods of making a polymerized color layer.