RELEASE SHEET

Abstract

Provided is a release sheet which is a non-silicone-based and has a good releasability from a layer of a pressure sensitive adhesive and which has a stable antistatic property without being influenced by the air environment and is free of bleeding out of ionic substances derived from an antistatic agent.

Description

Claims

1. A release sheet characterized by providing an undercoat layer containing a polyurethane-based resin and 0.1 to 45% by mass of a lithium salt-based antistatic agent and a layer of a rubber-based release agent formed by coating and drying a liquid containing a release agent in order on a substrate.

2. The release sheet as claimed in claim 1, wherein the liquid containing a release agent is coated, dried and cured by irradiating with an active energy beam to thereby form the layer of a rubber-based release agent.

3. The release sheet as claimed in claim 2, wherein the active energy beam is an ultraviolet ray.

4. The release sheet as claimed in any one of claims 1 to 3, wherein the undercoat layer has a thickness of 0.05 to 2 μm.

5. The release sheet as claimed in any one of claims 1 to 3, wherein the layer of a rubber-based release agent has a thickness of 0.05 to 0.5 μm.