Propylene Glycol Glycerin Deodorant Base Composition

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Solution Overview

Problem

Conventional underarm deodorants often face issues with skin irritation, poor glide properties, and excessive residue, which affect user comfort and acceptance, while also struggling to maintain effectiveness and stability over time.

Innovation Solution

A deodorant base composition comprising propylene glycol, glycerin, and water in specific ratios, along with additional ingredients like sodium stearate and natural antimicrobial agents, is developed to enhance skin feel, reduce irritation, and improve the deodorant's effectiveness and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional deodorant base compositions are used, then antimicrobial effectiveness is maintained, but skin irritation and inflammation increase

Engineering Contradiction:

Improveantimicrobial effectivenessVSAvoidskin irritation

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the chemical composition parameters of the deodorant base by using propylene glycol and glycerin instead of traditional waxes and gelling agents. This parameter change maintains antimicrobial effectiveness while reducing skin irritation, as the new base composition is softer and less irritating to the skin.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite base composition using propylene glycol and glycerin in specific ratios. This composite material provides both the necessary antimicrobial properties and the desired soft, non-irritating texture on the skin, resolving the contradiction between effectiveness and comfort.

Inventive Principle:

Principle #40Composite materials

2Stability of the object's composition

If traditional waxy base compositions are used, then product stability is maintained, but glide properties and ease of application deteriorate

Engineering Contradiction:

Improveproduct stabilityVSAvoidglide properties

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The patent changes the physical state parameters of the base composition from solid/waxy to liquid/gel form using propylene glycol and glycerin. This parameter change enables smooth glide and easy application while maintaining composition stability through the synergistic interaction of the glycol components.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If conventional deodorant formulations are used, then antimicrobial activity is effective, but visible residue and staining increase

Engineering Contradiction:

Improveantimicrobial activityVSAvoidvisible residue

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent changes the volatility and residue characteristics of the formulation by using propylene glycol and glycerin as the base. These components provide effective antimicrobial activity while being less likely to leave visible residue or stain clothing compared to traditional waxy bases, thus resolving the contradiction between effectiveness and cleanliness.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS9795810B2Propylene glycol/glycerin-based deodorant

Publication Date: 2017.10.24 TOMS OF MAINE INC

AI summary

The present invention relates to a stick type composition comprising propylene glycol, glycerin and water.