Mannitol Oligosaccharide Hair Styling Composition for Humidity Resistance
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Solution Overview
Problem
Straightened hair tends to increase in volume and appear fluffy, especially in humid conditions, which existing hair styling products fail to effectively address.
Innovation Solution
A hair styling composition containing specific oligosaccharides, such as mannitol or sorbitol, combined with hair styling polymers like block copolymers and carboxylated polyurethane resins, is applied to the hair, followed by a heating step to maintain a straight style in humid conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional hair styling products (hairsprays, mousses, gels) are used, then hair can be styled, but straightened hair increases in volume and appears fluffy in humid conditions
Solution Approach 1:
The patent changes the chemical composition parameter by using specific oligosaccharides (mannitol, sorbitol, isomalt) instead of conventional styling agents. These sugars create a film on the hair that resists humidity, preventing the fluffy appearance and volume increase that occurs with traditional products in humid conditions.
Solution Approach 2:
The invention combines oligosaccharides with film-forming agents and styling polymers to create a composite styling composition. This composite material provides both the straightening effect and humidity resistance, addressing the volume increase problem that plagues conventional single-component styling products.
2Reliability
If sugars are added to hair care compositions, then moisturisation is enhanced, but not all sugars provide the same styling properties
Solution Approach 1:
The patent applies the principle of local quality by selecting specific types of sugars (oligosaccharides like mannitol, sorbitol, and isomalt) that have particular properties suitable for both moisturisation and straightening. Rather than using any sugar, the invention specifies particular sugar types that provide the desired local effect of humidity resistance and volume control.
3Reliability
If reducing sugars are used instead of non-reducing sugars, then styling effectiveness is improved, but formulation complexity increases
Solution Approach 1:
The patent changes the chemical parameter of the sugar type from non-reducing to reducing sugars, specifically selecting oligosaccharides with reducing properties. This parameter change improves styling effectiveness and humidity resistance, and the patent provides detailed formulation guidance to manage the associated formulation complexity.
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 composition effectively maintains straight hair without volume increase in humid conditions, as demonstrated by reduced volume retention compared to other sugars like sucrose and fructose.
Implementation Method 1
The active materials in these compositions are generally film forming agents, resins, gums, and/or adhesive polymers
Implementation Method 2
maintain this straight style in humid conditions
Implementation Method 3
WO 2004/037217 describes heat activated durable styling compositions comprising saccharides and film forming agents
Data Source
AI summary
A method of styling hair comprising the step of applying to the hair a composition comprising an oligosaccharide comprising mannitol.