Patent ID: 8371564

Claim:
A suction apparatus for holding a material to be suctioned by vacuum-suctioning said material to be suctioned, comprising: a rigid suction substrate comprising, on a side to which said material to be suctioned is suctioned, a plurality of protrusions formed so that tip-end faces thereof are substantially the same height; at least one undercoat layer coated on said suction substrate on said side to which said material to be suctioned is suctioned, wherein the undercoat layer is a primer; and at least one elastic coating layer coated on said undercoat layer, such that the undercoat layer is between said coating layer and said suction substrate, wherein the undercoat layer and the elastic coating layer conform to the shape of the substrate, and a thickness of the elastic coating layer at the tip-end faces of the plurality of protrusions is thinner relative to the elastic coating layer applied elsewhere on the undercoat layer and is such that undulations do not occur in the material after the material is suctioned to the suction apparatus.