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US 8,133,570 B2Granted
Sheet material excelling in cushion and nonslip properties
AssigneeKuraray Co., Ltd.
InventorsMichinori Fujisawa, Sadahiro Ishii
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AssigneeKuraray Co., Ltd.
InventorsMichinori Fujisawa, Sadahiro Ishii
Estimating the term…
The present invention provides a sheet material exhibiting an appearance excellent in three dimensional feel in combination with sufficient abrasion strength of the surface, cushioning property and non-slipping property and advantageously used as the surface material of balls for basketball and the like. The sheet material has a base fabric and a coating layer of a polymer covering the surface of the base fabric, where the coating layer has substantially continuous protrusions and hemispherical depressions formed adjoining the protrusions on a surface, the depressions have a color tone different from a color tone of the protrusion and a gloss brighter than a gloss of the protrusion, a vertical projected area of the depression is 3 to 30 mm2, an average distance between the depressions is 0.5 to 3 mm, and a height difference between the protrusion and the depression is 50 to 1,000 μm.
A sheet material comprising a base fabric and a coating layer of a polymer covering a surface of the base fabric, wherein the coating layer has substantially continuous protrusions and hemispherical depressions formed adjoining the protrusions on a surface, the depressions have a color tone different from a color tone of the protrusions and a gloss brighter than a gloss of the protrusions, a vertical projected area of each of the depressions is 3 to 30 mm2, an average distance between the depressions is 0.5 to 3 mm, and a height difference between the protrusion and the depressions is 50 to 1,000 μm.
Dependencies are inferred from the claim text.