Oxidizer-Free Eyelash Perming via Reducing Agent and Polymer
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Solution Overview
Problem
Existing eyelash perming methods require oxidizing agents, which are not safe for use around the eyes, and previous oxidizer-free alternatives fail to provide long-lasting lift or curl.
Innovation Solution
An oxidizer-free method involving a three-step process: applying a reducing agent, followed by a contractile polymer composition, and manually lifting the eyelashes, without the use of glue or silicone pads, allowing for optional pigmentation and repeat applications every 1-3 months.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional perm process involving oxidizing agents is used, then long-lasting lift or curl is achieved, but safety around the eyes is compromised
Solution Approach 1:
The patent removes the oxidizing agent step from the traditional perm process, extracting the harmful element while retaining the curling function through an alternative mechanism using reducing agents and mechanical manipulation
Solution Approach 2:
The patent changes the chemical parameters of the perming process by using reducing agents instead of oxidizing agents, and adjusts processing time parameters (5-10 minutes for reducing agent, 3-5 minutes for setting lotion) to achieve safe yet effective results
2Reliability
If oxidizer-free alternatives are used, then safety is improved, but duration of lift deteriorates to only a few hours
Solution Approach 1:
The patent uses a composite approach combining a reducing agent composition with a setting lotion containing film-forming polymers and conditioning agents, creating a multi-component system that achieves both safety and long-lasting results
Solution Approach 2:
The patent applies the reducing agent composition first to break disulfide bonds and prepare the lash structure, then follows with the setting lotion to lock in the curl, ensuring the lift lasts through multiple stages of action
3Duration of action of stationary object
If a three-step process with reducing agent and contractile polymer is used, then long-lasting lift is achieved, but process complexity increases
Solution Approach 1:
The patent divides the perming process into distinct segments: step 1 (applying reducing agent), step 2 (mechanical manipulation), and step 3 (applying setting lotion), making the complex chemistry manageable and controllable
Solution Approach 2:
Instead of using oxidizing agents to lock the curl (traditional approach), the patent inverts the approach by using reducing agents to prepare the structure and then using mechanical manipulation with a setting lotion to achieve and maintain the curl
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 method provides safe, long-lasting semi-permanent curl to eyelashes without oxidizers, maintaining at least 87.5% of the lift angle under humid conditions and lasting up to 12 hours, with the potential for repeated treatments.
Implementation Method 1
applying a first composition that includes a reducing agent to an eyelash
Implementation Method 2
applying a second composition that includes a contractile polymer to the eyelash
Data Source
AI summary
Disclosed is an oxidizer-free method for providing semi-permanent curl to eyelashes, and a kit for use with the method. The method involves a three-step process: (i) applying a first composition that includes a reducing agent to an eyelash, (ii) applying a second composition that includes a contractile polymer to the eyelash, and (iii) manually lifting the eyelash. Unlike conventional lash lifting techniques, the disclosed method requires no glue, silicone pads, compositions with oxidizing agents, or heating.