Deodorant and deodorizing product

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Solution Overview

Problem

Conventional deodorants, particularly those containing copper compounds, face challenges in maintaining a desirable appearance while achieving effective odor neutralization, and zinc oxide-based deodorants lack sufficient deodorizing capacity for sulfur-based and acidic gases.

Innovation Solution

A deodorant composed of crystalline zinc oxide and aluminum oxide, with a molar ratio of 40 to 80, which enhances deodorizing performance for sulfur-based and acidic gases without altering the white color, allowing for its use in various applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a copper compound deodorant is used to achieve effective odor neutralization, then the deodorizing capacity is improved, but the appearance color becomes blue which does not fit the product image

Engineering Contradiction:
Improvedeodorizing capacityVSAvoidappearance color
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The invention changes the chemical composition parameters by replacing copper compounds with zinc oxide as the main deodorizing agent, and aluminum oxide as an additive. This parameter change maintains white color appearance while achieving effective deodorizing capacity against sulfur-based and acidic gases, resolving the contradiction between deodorizing performance and aesthetic appearance.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention uses a composite material system consisting of zinc oxide and aluminum oxide in a specific molar ratio (5:1 to 2:1). This composite approach combines the white color and deodorizing properties of zinc oxide with the enhancing effects of aluminum oxide, achieving both aesthetic appearance and effective deodorizing capacity without the blue coloration problem of copper compounds.

Inventive Principle:
Principle #40Composite materials

2Shape

If conventional zinc oxide deodorant is used to maintain white color appearance, then the appearance is preserved, but the deodorizing capacity for sulfur-based and acidic gases is insufficient

Engineering Contradiction:
Improveappearance colorVSAvoiddeodorizing capacity
Core Design Contradiction:
ShapeVSReliability

Solution Approach 1:

The invention creates a composite material system of zinc oxide and aluminum oxide where aluminum oxide acts as an additive that enhances the deodorizing capacity of zinc oxide against sulfur-based and acidic gases. This composite approach maintains the white color appearance of zinc oxide while significantly improving its deodorizing effectiveness, resolving the contradiction between appearance and performance.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The invention modifies the compositional parameters by introducing aluminum oxide at controlled amounts (molar ratio of ZnO/Al2O3 between 5:1 and 2:1). This parameter modification enhances the chemical adsorption capability of the zinc oxide base material against specific odorous gases while preserving the desirable white color appearance.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If aluminum oxide is added to zinc oxide to enhance deodorizing capacity, then the deodorizing effect is improved, but the complexity of composition increases

Engineering Contradiction:
Improvedeodorizing capacityVSAvoidcomposition complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The invention controls the compositional parameters by limiting aluminum oxide content to a specific molar ratio range (ZnO/Al2O3 = 5:1 to 2:1). This controlled parameter approach enhances deodorizing capacity while maintaining relatively simple composition and processing, avoiding excessive complexity in material formulation and manufacturing.

Inventive Principle:
Principle #35Parameter changes

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 crystalline zinc oxide deodorant exhibits high deodorizing capacity and chemical adsorption efficacy on sulfur-based and acidic gases, maintaining a white appearance and enabling its use in diverse products such as coatings, textiles, and filters.

Implementation Method 1

The crystalline zinc oxide deodorant exhibits high deodorizing capacity and chemical adsorption efficacy on sulfur-based and acidic gases

Methodology Applied
Scientific EffectChemical adsorption: Chemisorption

Data Source

PatentUS10669669B2Deodorant and deodorizing product
Publication Date: 2020.06.02 TOAGOSEI CO LTD
  • US10669669B2 patent drawing

AI summary

The deodorant of the present invention is characterized in that the deodorant consists of a crystalline zinc oxide in which zinc oxide and aluminum oxide are composited, and a molar ratio (ZnO/Al2O3) of the zinc oxide to the aluminum oxide is in a range from 40 to 80. The deodorant has a high deodorizing effect against sulfur gases and acidic gases. A preferable average particle size of the deodorant is 0.2 to 15 μm.