Decorative sheet and method for producing the same

A decorative sheet comprising:

• (a) a base substrate consisting of polyvinyl chloride;
• (b) a pattern layer directly on the base substrate;
• (c) a polyvinyl chloride resin layer consisting of a polyvinyl chloride resin, the polyvinyl chloride resin layer being directly on the pattern layer;
• (d) a first surface protective layer consisting of acrylic material, the first surface protective layer being directly on the polyvinyl chloride resin layer;
• (e) a second surface protective layer consisting of acrylic material, the second surface protective layer being directly on the first surface protective layer;
• and
• (f) a third surface protective layer consisting of acrylic material and silver-based additive particles, the third surface protective layer being the outermost layer of the decorative sheet and the third surface protective layer being directly on the second surface protective layer;
• wherein the acrylic material of each of the first surface protective layer, the second surface protective layer and the third surface protective layer is selected from the group consisting of (a) acrylic resin and (b) a combination of acrylic resin and isocyanate;
• wherein the acrylic material of the second surface protective layer is the same as the acrylic material of the third surface protective layer;
• and
• wherein the following expression (2) is satisfied:
• A×B×C≥10 (2),
• where:
• A is a solid-content concentration (mass %) of the silver-based additive particles in the third surface protective layer;
• B is a proportion (mass %) of silver in the silver-based additive particles;
• and
• C is a mass (g) of the silver-based additive particles per square meter of the third surface protective layer.