Patent ID: 8858751

Claim:
A method for producing a flexible metal laminate, comprising a step of continuously thermocompression-bonding a laminate metal foil to at least one side of a thermocompression resin film using a heat and pressure forming apparatus, wherein the step of thermocompression-bonding is conducted placing a protection metal foil for protecting the laminate metal foil between a pressure surface of the heat and pressure forming apparatus and the laminate metal foil, the protection metal foil has a shiny surface and a matte surface, which is more rough-surfaced than the shiny surface, wherein, in the step of thermocompression-bonding, the protection metal foil is used such that the matte surface contacts the pressure surface of the heat and pressure forming apparatus, and when the protection metal foil is subjected to an abrasion resistance test, in which the protection metal foil is placed such that the matte surface contacts a plate material having a surface equivalent to the pressure surface of the heat and pressure forming apparatus and in which the matte surface of the protection metal foil is rubbed against the surface of the plate material by applying a load to the shiny surface and pulling the protection metal foil in a given direction, a streak is found on the matte surface of the protection metal foil only in a case where the load is over 500 g per area of 76 mm×26 mm, wherein the protection metal foil is an electrolytic copper foil.