Method and apparatus for manufacturing lenticular plastics by casting

A method of producing a lenticular sheet or film comprising the steps of:

• providing an engraved chill roller having an inverse lens pattern formed thereon;
• providing a molten material resin;
• extruding the molten material resin through a die and about the engraved chill roller;
• providing a nip roller adjacent the chill roller to form a nip between the chill roller and the nip roller;
• and
• forming a lenticular sheet by rapidly cooling the molten material resin about the chill roller to substantially room temperature, passing the cooled material resin through the nip and impressing the inverse lens pattern onto a side of the cooled material resin which is in contact with the chill roller.

A method of producing a lenticular sheet or film comprising the steps of:

• storing a material resin in a molten state in a reservoir;
• feeding the molten state material resin into a die;
• providing an engraved chill roller having an inverse lens pattern formed thereon;
• extruding the molten material resin through the die and about the engraved chill roller such that the molten material resin begins to rapidly cool to substantially room temperature;
• providing a nip roller adjacent the chill roller to form a nip between the chill roller and the nip roller;
• and
• forming a lenticular sheet by rapidly cooling the molten material resin about the chill roller, passing the cooled material resin through the nip and impressing the inverse lens pattern onto a side of the cooled material resin which is in contact with the chill roller.