Patent ID: 8790767

Claim:
A release sheet, which comprises a mat making layer which forms a refined uneven mat surface, the mat making layer being provided on at least one surface of a substrate sheet, and a release layer formed with a coating film layer of releasable resin containing 10 to 70% by mass of ultra micro particles having an average particle size of 0.01 to 0.05 μm, the release layer being provided on a surface of the mat making layer, wherein the mat making layer is provided between the substrate sheet and the release layer, and wherein the release layer is formed uniformly on all of the surface of the mat making layer, wherein the mat making layer is composed of a resin and a mat making agent and the arithmetical mean surface roughness of the surface of the mat making layer is 5 to 30 μm, wherein the formulating amount of mat making agent is 30 to 70% by mass to total amount of the resin and the mat making agent, wherein the mat making layer comprises at least one resin selected from the group consisting of a polyvinyl alcohol resin and a polystyrene resin, wherein a glossiness of the surface of the release layer is 1.5 to 2.5%, wherein the releasable resin contained in the release layer is at least one thermosetting or radiation-curing resin selected from the group consisting of a silicone resin, an alkyd resin, a melamine resin and an acrylic resin.