Baseless Eyelash Extension Bonding Without Heat Fusion
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Solution Overview
Problem
Existing artificial eyelash extensions often suffer from poor adhesion, durability, and heat-induced fusion junctions, leading to suboptimal performance and user discomfort.
Innovation Solution
The development of a water-resistant adhesive and baseless eyelash extension system using a polymer-based adhesive that adheres to natural lashes without heat fusion, combined with a customizable curling process that maintains lash integrity and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If heat fusion is used to join artificial lashes, then adhesion strength is improved, but natural lash damage and user discomfort increase
Solution Approach 1:
The patent replaces the thermal field (heat fusion) with a chemical field (polymer-based adhesive bonding). The adhesive chemically bonds the artificial lash to the natural lash without applying heat, thereby maintaining adhesion strength while eliminating thermal damage to the natural lash.
Solution Approach 2:
The patent changes the bonding mechanism from thermal (heat-based) to chemical (adhesive-based). This parameter change in the bonding method allows achieving strong adhesion through chemical bonding rather than thermal fusion, preventing natural lash damage while maintaining connection strength.
2Ease of operation
If water-based adhesives are used, then ease of removal is improved, but water resistance and durability deteriorate
Solution Approach 1:
The patent uses a composite adhesive system combining polymer-based adhesive with water-resistant properties. This composite material achieves both durability and water resistance while maintaining reasonable removability through specialized formulations that balance bonding strength and removal ease.
Solution Approach 2:
The patent changes the adhesive formulation from traditional water-based to polymer-based with water-resistant characteristics. This parameter change in adhesive composition provides enhanced water resistance and durability while still allowing for controlled removal through appropriate solvents or methods.
3Shape
If heat is applied to curl lashes, then curl formation is improved, but adhesive degradation and lash damage occur
Solution Approach 1:
The patent replaces thermal curling with mechanical or chemical curling methods. The artificial lash is curled through mechanical means (such as pre-curling during manufacturing) or chemical treatment without applying heat, thereby achieving desired shape while preserving adhesive integrity and avoiding thermal degradation.
Solution Approach 2:
The patent applies the curl to the artificial lash during the manufacturing process before application to the natural lash. This preliminary curling action eliminates the need for post-application heat treatment, preserving both the adhesive bond and the natural lash while achieving the desired curl shape.
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 solution provides long-lasting adhesion and enhanced durability, ensuring the artificial lashes remain securely attached for several days without compromising the natural lash's health or comfort.
Implementation Method 1
a polymer-based adhesive that adheres to natural lashes without heat fusion
Data Source
AI summary
An artificial eyelash extension unit may be formed using a bridge, and/or knotting or lashing, to connect artificial lashes to a base. Heat may not be required nor involved in forming a connection between the artificial lashes and the base. The artificial eyelash extension unit may be a knotted eyelash extension unit having a knotted base including, containing, having, or supporting one or more knots, such as loops, twists, or bindings. An artificial eyelash extension unit may be formed without a base.