Laminate film for coating metal sheet, and laminate film for coating metal sheet for screen board

A method for producing a laminate film for coating a metal sheet for a screen board for laminating on a metal surface, wherein the laminate film comprises:

• a base resin layer;
• (i) a layer having elastic modulus at a temperature from 180° C. to 200° C. of 1.0×107 Pa or less and elastic modulus at a temperature from 120° C. to 160° C. of 1.0×108 Pa or more;
• and
• (ii) a layer comprising a fluorine resin, as the main component, on the top of the layer (i),
• the method comprising:
• laminating the layer (ii) and a delaminatable resin layer by co-extrusion;
• laminating the layer (i) on the layer (ii);
• and
• laminating the base resin layer on the layer (i).

A method for producing a laminate film for coating a metal sheet for a screen board for laminating on a metal surface, wherein the laminate film comprises:

• a base resin layer;
• (i) a layer having elastic modulus at a temperature from 180° C. to 200° C. of 1.0×107 Pa or less and elastic modulus at a temperature from 120° C. to 160° C. of 1.0×108 Pa or more;
• and
• (ii) a layer comprising a fluorine resin, as the main component, on the top of the layer (i),
• the method comprising:
• laminating the layer (i) and the base resin layer by co-extrusion;
• laminating the layer (ii) and the delaminatable resin layer by co-extrusion;
• and
• adhering the layer (i) and the layer (ii) to each other.