Cushioning material for hot press and method for producing the same

The invention provides cushioning material for hot press and a method for producing the same. During automatic loading, delivery performance and stripping performance of a hot plate are excellent. Additionally, fluff is inhibited during application. The cushioning material for hot press is equipped with base material, a cotton fibre layer arranged on a first main surface and an air-tight piece layer. The outer surface of the cotton fiber layer is softened and smooth. The air-tight piece layer is arranged on the second main surface side of the base material and can be configured by a fiber piece or a resin film. 本发明提供自动装载时的输送性、与热板的剥离性出色，且使用时的起毛得到抑制的新型改良的热压用缓冲材料及热压用缓冲材料的制造方法。本发明涉及的热压用缓冲材料具备：基材；配置于所述基材的第主面上，且外表面被软化平滑化的棉絮纤维层；以及配置于所述基材的第二主面侧的气密片层。所述气密片层可以由纤维片或树脂膜构成。