Antiviral Decorative Sheet Composition With Scratch-Resistant Surface
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Solution Overview
Problem
Decorative sheets made from olefinic resin lack scratch resistance and antiviral properties, especially when used as flooring for outdoor footwear, leading to rapid wear and loss of antiviral efficacy.
Innovation Solution
A decorative sheet comprising a substrate sheet, adhesive layer, and a surface protective layer with added antiviral agents and nucleating agents, which enhances scratch resistance and antiviral properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If olefinic resin is used as decorative sheet material, then environmental friendliness is improved, but scratch resistance deteriorates
Solution Approach 1:
The patent uses a composite structure with a substrate sheet (olefinic resin for environmental friendliness) and a surface protective layer (polyvinyl chloride or other resins with high scratch resistance). This combines materials with different properties to simultaneously achieve environmental friendliness and scratch resistance.
Solution Approach 2:
The decorative sheet is divided into functional layers: a substrate sheet providing environmental benefits and a separate surface protective layer providing scratch resistance. This segmentation allows each layer to optimize its specific function without compromising the other.
2Reliability
If antiviral agents are added to the outermost surface, then antiviral properties are improved, but scratch resistance deteriorates
Solution Approach 1:
The patent applies antiviral agents specifically to the surface protective layer, which has high scratch resistance. This local application ensures that the antiviral function is concentrated where it is needed (at the outermost surface) while the underlying structure maintains mechanical strength.
Solution Approach 2:
The surface protective layer is formulated as a composite material combining polyvinyl chloride (or other durable resins) with antiviral agents. This composite provides both the scratch resistance of the base resin and the antiviral properties of the added agents.
3Ease of operation
If surface layer is made soft for comfort, then ease of operation is improved, but scratch resistance deteriorates
Solution Approach 1:
The patent segments the decorative sheet into a substrate sheet and a surface protective layer with different properties. The surface protective layer can be formulated to provide comfort (appropriate softness) while maintaining scratch resistance through careful material selection and thickness control.
Solution Approach 2:
The patent adjusts parameters such as the thickness of the surface protective layer (5-50 μm), the type of resin used, and the addition of modifiers to achieve the optimal balance between softness for comfort and hardness for scratch resistance.
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 decorative sheet achieves high scratch resistance and maintains antiviral properties by incorporating antiviral agents and nucleating agents in the surface protective layer, ensuring durability and effectiveness.
Implementation Method 1
at least one of the surface protective layer and the thermoplastic resin layer contains a nucleating agent
Implementation Method 2
the surface protective layer has added thereto an antiviral agent at an amount of 0.2 parts by mass or more and 10 parts by mass or less
Data Source
AI summary
A decorative sheet and a decorative member having high scratch resistance and antiviral properties. The decorative sheet includes a substrate sheet, an adhesive layer, a surface protective layer, and a thermoplastic resin layer, wherein at least one of the surface protective layer and the thermoplastic resin layer contains a nucleating agent or inorganic particles, and the surface protective layer has added thereto an antiviral agent at an amount of 0.2 parts by mass or more and 10 parts by mass or less.