Solid Anhydrous Lip Care Composition Hardness Control
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Solution Overview
Problem
Existing lip care compositions made from natural ingredients face challenges in controlling hardness, often resulting in products that are either too hard to apply or too soft, and may sweat at higher temperatures, leading to a sticky film on the lips.
Innovation Solution
A solid anhydrous composition comprising triglyceride oils, an ester of dimer dilinoleic acid and polyol, and wax, with a specific weight ratio, providing desired hardness and preventing sweating, ensuring a non-sticky feeling and good spreadability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If natural ingredients (triglycerides and esters) are used to formulate lipstick, then the composition is easier to apply and more comfortable, but the hardness becomes difficult to control, resulting in products that are either too hard or too soft
Solution Approach 1:
The patent applies parameter changes by precisely controlling the weight ratio between triglyceride oil (formula I) and hydroxyl-substituted triglyceride oil (formula II) to be less than or equal to 1:1. This specific parameter control enables consistent hardness while maintaining the natural ingredient benefits for easy application.
Solution Approach 2:
The patent uses composite materials by combining multiple triglyceride oils with different properties (formula I and formula II) in a specific ratio, along with pasty compounds and waxes. This composite approach allows tuning of both hardness and application characteristics simultaneously.
2Adaptability or versatility
If natural ingredients are used in lipstick formulation, then the product is more appealing to consumers, but the composition tends to sweat at higher temperatures and leave a sticky film
Solution Approach 1:
The patent controls the temperature stability parameter by selecting specific natural ingredients and their ratios, ensuring the composition maintains its structure at higher temperatures without sweating or becoming sticky, while preserving consumer appeal through natural ingredient usage.
Solution Approach 2:
The patent converts the potential harm of natural ingredients sweating into a benefit by carefully selecting hydroxyl-substituted triglycerides that actually prevent sweating through their molecular structure, transforming the weakness into a strength.
3Ease of operation
If the lipstick is made too soft for easy application, then application comfort improves, but the product becomes prone to lapsing in the container
Solution Approach 1:
The patent optimizes the hardness parameter by controlling the weight ratio of triglyceride oils and selecting specific pasty compounds and waxes, achieving a balance where the lipstick remains soft enough for comfortable application yet stable enough to maintain its shape in the container.
Solution Approach 2:
The patent employs composite materials combining multiple components (triglyceride oils, pasty compounds, waxes) in specific proportions, creating a synergistic effect that provides both softness for application and structural stability for container retention.
Data Source
AI summary
A solid anhydrous composition for caring for and/or making up keratin materials comprising: a) at least one triglyceride oil according to formula (I): CH2(OOCR1)CH(OOCR2)CH2(OOCR3) (I) wherein R1, R2 and R3 are independently chosen from C6-C30 alkyl and C6-C30alkenyl; b) at least one triglyceride oil according to formula (II): CH2(OOCR1)CH(OOCR2)CH2(OOCR3) (II) wherein R1, R2 and R3 are independently chosen from C6-C30 alkyl and C6-C30alkenyl, at least one of R1, R2 and R3 is substituted with a hydroxyl; c) at least one pasty compound chosen from an ester of dimer dilinoleic acid and polyol(s) or an ester thereof, and d) at least one wax, wherein the triglyceride oil according to formula (I) and the triglyceride oil according to formula (II) are present in the solid anhydrous composition in a weight ratio less than or equal to 1:1.