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US 11,060,240 B2Granted
Synthetic leather
AssigneeSeiren Co., Ltd.
InventorMichio Shinozaki
Life of this patent
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Abstract
Provided is synthetic leather with wrinkling and springiness similar to those of natural leather. The synthetic leather has a grain pattern and is obtained by laminating a polyurethane resin layer on a fibrous substrate. A stiffness of the front surface of the synthetic leather is 65 to 95 mm and a stiffness of a rear surface of the synthetic leather is 55 to 85 mm.
Claims12
Synthetic leather comprising:
- a fibrous substrate;
- and
- a polyurethane resin layer that is laminated onto the fibrous substrate,
- the synthetic leather having a grain pattern on a front surface, the front surface being on a side of the polyurethane resin layer,
- wherein a stiffness of the front surface of the synthetic leather is 65 to 95 mm and a stiffness of a rear surface of the synthetic leather is 55 to 85 mm,
- wherein a dry mass per unit area of the polyurethane resin layer is 120 to 320 g/m2, and
- wherein a thickness of the polyurethane resin layer is 120 to 320 μm.
4 more elements
Dependencies are inferred from the claim text.