False Eyelash Stem Design for Thin Profile and Secure Adhesion
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Solution Overview
Problem
Existing false eyelash fixation methods result in thick, heavy, and uneven stems that are difficult to apply smoothly, leading to poor adhesion and aesthetic issues, requiring complex processing and high labor costs.
Innovation Solution
A false eyelash design featuring a cylindrical stem made of PET or PBT material with lapped and fixed eyelash filaments, using ultrasonic or laser fusion for pre-fixing and a light-curing adhesive for secondary fixation to create a thin, smooth, and comfortable fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If single line node or double line fixation methods are used, then the eyelash stem can be formed, but the stem becomes thick, heavy, and uneven making it difficult to apply smoothly
Solution Approach 1:
The patent extracts and removes the problematic fixation lines (single line node or double line) that cause the stem to become thick and uneven. By eliminating these traditional fixation methods, the stem can maintain a thin, uniform profile that applies smoothly without the bulk and irregularity introduced by conventional fixation techniques.
Solution Approach 2:
The patent introduces a new intermediary fixation method using a thin layer of adhesive material applied at specific positions along the stem. This intermediary approach replaces the bulky line node or double line fixation, providing secure attachment while maintaining stem thinness and uniformity, thereby enabling smooth application.
2Reliability
If traditional fixation methods are used, then the stem can be formed, but the adhesion is poor causing false eyelashes to fall off
Solution Approach 1:
The patent extracts and eliminates the complex traditional fixation processes (single line node or double line requiring multiple steps and materials). By removing these complicated procedures, the design achieves better adhesion through a simplified approach that uses minimal adhesive material applied at strategic positions, reducing the risk of falling off without increasing process complexity.
Solution Approach 2:
The patent changes the parameters of the fixation method by transitioning from bulky line node or double line structures to a thin adhesive layer applied at specific positions. This parameter change optimizes the balance between adhesion strength and process simplicity, achieving reliable attachment while maintaining a clean, uniform stem profile.
3Productivity
If manual tying or machine lining is used, then the eyelash stem can be fixed, but the output is low due to artificial restriction
Solution Approach 1:
The patent extracts and removes the labor-intensive manual tying or complex machine lining processes. By eliminating these restrictive manufacturing methods, the production output increases significantly. The simplified fixation method using minimal adhesive material applied at specific positions can be efficiently implemented through automated processes, reducing labor requirements and increasing productivity.
Solution Approach 2:
The patent changes the manufacturing parameters by transitioning from manual or complex automated lining processes to a simplified adhesive application method. This parameter change enables easier manufacturing with higher output, as the thin adhesive layer can be applied efficiently using automated dispensing systems, reducing both labor costs and production time.
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 reduces the stem thickness, enhances adhesion, and provides a natural, comfortable wear experience with improved aesthetic appeal by making the eyelashes fit closely and invisibly, minimizing the risk of falling off.
Implementation Method 1
the fixed adhesive layer is an light-curing adhesive layer
Implementation Method 2
melting surfaces of the roots of the eyelash filaments and/or surfaces of the eyelash stem by applying ultrasonic fusion
Implementation Method 3
melting surfaces of the roots of the eyelash filaments and/or surfaces of the eyelash stem by applying ultrasonic fusion or laser fusion
Data Source
AI summary
A method for manufacturing a pair of false eyelashes and a pair of false eyelashes. The length of the bottom line of eyelashes is between 20 MM and 35 MM, wherein the false eyelashes include an eyelash stem and eyelash filaments; the root of the eyelash filaments are lapped and fixed on the eyelash stem. The false eyelashes and the method for manufacturing false eyelashes according to the embodiments of the present disclosure improve the defects of the thick and uneven stems of the false eyelashes, reduce the proportion of the eyelash stem, weaken the visual presence, so as to make the stems of the false eyelashes closer to the natural eyelashes. The false eyelashes can naturally and closely fit the eyes, which are transparent and invisible, and the false eyelashes do not prick the skin and is hard to rise and fall off