Solid Powder Compact Composition for Low-Dust UV and Antibacterial Use
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Solution Overview
Problem
Existing antibacterial and sun-protective solid powder products face issues such as dust inhalation hazards, skin irritation, poor structural stability, limited sun protection efficacy, and inability to incorporate decorative elements without compromising mechanical strength.
Innovation Solution
A powdered solid compact composition comprising aluminum starch octenylsuccinate, carrier powder, ultraviolet protective agent, antibacterial agent, non-expandable polymer powder, viscous fluid skin-feel modifier, and plant extract, refined to 5-50 μm particle size, compressed to 8-9 g/cm3 density, and processed without high-temperature alcohol evaporation, allowing for stable decorative elements and effective sun protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If inorganic porous powders (calcium carbonate, magnesium carbonate, magnesium sulfate, magnesium silicate) are used as primary powder materials, then the product can absorb moisture and provide antibacterial effect, but it excessively absorbs moisture and releases heat, leading to skin dryness and itching
Solution Approach 1:
The patent changes the chemical composition parameters by replacing inorganic porous powders with aluminum starch octenylsuccinate, an organic compound with different moisture absorption characteristics that does not cause excessive heat release and skin irritation
Solution Approach 2:
The patent uses aluminum starch octenylsuccinate which can be replaced or supplemented in the formulation to achieve the desired moisture absorption effect without the harmful side effects of inorganic powders
2Ease of manufacture
If aluminum starch octenylsuccinate is added in significant amount with high-concentration alcohol and high-temperature drying, then the product achieves compact form, but the resulting compact structure is porous and loose with insufficient structural stability
Solution Approach 1:
The patent changes the manufacturing parameters by eliminating high-concentration alcohol and high-temperature drying steps, using alternative processing methods that achieve compact form while maintaining structural stability
Solution Approach 2:
The patent uses a composite powder formulation incorporating aluminum starch octenylsuccinate with other compatible materials that provide both compactability and structural stability without requiring porous loose structure
3Reliability
If UV absorbers such as octinoxate are used to achieve sun protection, then ultraviolet radiation protection is provided, but users with sensitive skin may experience adverse reactions like redness, itching, or allergies
Solution Approach 1:
The patent replaces chemical UV absorbers with alternative sun protection mechanisms that do not cause sensitivity reactions, using physically blocking materials or safer chemical alternatives
Solution Approach 2:
The patent introduces alternative substances that mediate between the need for UV protection and skin safety, using materials that provide sun protection without the irritating effects of traditional UV absorbers like octinoxate
4Adaptability or versatility
If decorative elements are incorporated into solid compact products, then commercial value and consumer appeal are enhanced, but the mechanical strength and structural stability are compromised
Solution Approach 1:
The patent uses a composite powder formulation with enhanced binding characteristics that can accommodate decorative elements while maintaining overall structural integrity and mechanical strength
Solution Approach 2:
The patent applies different material properties to different regions of the compact, allowing decorative elements to be incorporated in specific areas without compromising the overall structural strength of the compact body
5Object-affected harmful factors
If loose powder form is used to avoid dust inhalation, then application safety is improved, but dust dispersion during application cannot be completely eliminated
Solution Approach 1:
The patent utilizes phase transition by compressing the powder into a solid compact form that can be applied controllably, transitioning from loose powder phase to compacted solid phase to eliminate dust while maintaining applicability
Solution Approach 2:
The patent creates a compact structure with controlled surface properties that allows gradual release of powder during application, preventing sudden dust dispersion while enabling controlled application to the skin
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 provides stable, non-dusty application with antibacterial and sun-protective properties, achieving SPF 15 PA+ and reducing inhalation risks, while maintaining structural integrity and skin comfort.
Implementation Method 1
aluminum starch octenylsuccinate, which adsorbs sweat and sebum
Implementation Method 2
The sun-protective effect is achieved by absorbing ultraviolet (UV) radiation
Implementation Method 3
forming a thin powder layer on the skin
Data Source
AI summary
An antibacterial and sun-protective powdered solid compact composition with decorative elements, consisting of the following raw materials in percentage by weight: 15% to 25% of aluminum starch octenylsuccinate and/or calcium starch octenylsuccinate; 45% to 65% of a carrier powder; 1% to 10% of an ultraviolet protective agent; 0.1% to 0.5% of an antibacterial agent; 1% to 5% of a non-expandable polymer powder; 5% to 15% of an viscous fluid skin-feel modifier; 0.1% to 7.5% of a plant extract, wherein the solid raw materials have a particle size of 5-50 μm, and the raw materials are thoroughly mixed and compressed to form a powdered solid compact composition with a density of 8-9 g/cm3. The manufacturing process comprising pre-mixing, blending, pulverizing, standing, and compacting under appropriate pressure enables reduced energy consumption and effectively mitigates safety hazards caused by certain flammable materials during production.