Loading patent…
AssigneeDai Nippon Printing Co., Ltd.
InventorNobuo Saitou
Estimating the term…
The present invention relates to a production process for a decorative sheet comprising a step in which a primer layer is formed on a releasing film having a smooth surface, a step in which a design layer is formed on the above primer layer, a step in which the primer layer and the design layer are transferred on a base material, a step in which the releasing film on the base material is peeled off, a step in which an ionizing radiation curable resin composition is laminated on the primer layer formed on the base material and a step in which the above ionizing radiation curable resin composition is cross-linked and cured to form a surface protective layer. Capable of being provided is a decorative sheet of a high gloss which keeps a surface smoothness and a gloss and maintains a design feeling even after three-dimensional molding such as insert molding, injection molding simultaneous decoration and the like and which is less liable to generate dents and wounds on a surface by wrapping therein foreign matters even when winding the decorative sheet on a roll and less liable to produce scratches and wrinkles by bringing a surface and a rear face of the decorative sheet into close contact with each other.
A production process for a decorative sheet comprising a step in which a primer layer is formed on a releasing film having a smooth surface, a step in which a design layer is formed on the above primer layer, a step in which the primer layer and the design layer are transferred on a base material, a step in which the releasing film on the base material is peeled off, a step in which an ionizing radiation curable resin composition is laminated on the primer layer formed on the base material and a step in which the above ionizing radiation curable resin composition is cross-linked and cured to form a surface protective layer, wherein it further comprises a roughening treatment step in which a ten point average roughness RzJIS on a rear face of the decorative sheet and a thickness T of the base material are controlled to satisfy the following equation (I) and in which an arithmetic average roughness Ra on the rear face and a thickness T of the base material are controlled to satisfy the following equation (II):
A production process for a decorative sheet comprising a step in which a primer layer is formed on a releasing film having a smooth surface, a step in which a design layer is formed on the above primer layer, a step in which the primer layer and the design layer are transferred on a base material, a step in which the releasing film on the base material is peeled off, a step in which an ionizing radiation curable resin composition is laminated on the primer layer formed on the base material and a step in which the above ionizing radiation curable resin composition is cross-linked and cured to form a surface protective layer, wherein it further comprises a roughening treatment step in which an arithmetic average roughness Ra on a rear face of the decorative sheet is controlled to 1.0 to 10.0 μm.
Dependencies are inferred from the claim text.