| 主权项 |
1. A process for forming a partition on a lamination machine having a plurality of stations comprising:
providing at a first supply station a source of a plurality of individual sheets of an inner layer of an expanded polyolefin having sufficient dimensional stability not to fold under its own weight, having opposed outer surfaces and having a length and width dimension substantially the same as the partition; providing at a second supply station a source of a first continuous roll of a first multi-layered sheet material having a first substrate layer, a first adhesive layer and a first backing layer; providing at a third supply station a source of a second continuous roll of a second multi-layered sheet material having a second substrate layer, a second adhesive layer and a second backing layer; mounting the first continuous roll on a first spindle at the second supply station for rotational movement of the first roll about an axis of the first roll; mounting the second continuous roll on a second spindle at the third supply station for rotational movement of the second roll about an axis of the second roll; pulling a portion of the first multi-layered sheet material from the second supply station into contact with a roller to remove the first backing layer to expose the first adhesive layer to provide a first two-layer structure; pulling a portion of the second multi-layered sheet material from the third supply station into contact with a roller to remove the second backing layer to expose the second adhesive layer to provide a second two-layer structure; pulling the first two-layered structure between a pair of nip rollers; pulling the second two-layered structure between the pair of nip rollers; feeding a plurality of the individual sheets of the inner layer toward the pair of nip rollers where the first two-layered structure is pressed onto one of the outer surfaces of the individual sheet and the second two-layered structure is pressed onto the opposed outer surface of the individual sheet to form a five-layered structure; pulling the five-layered structure to a cutting station where excess material of the first two-layered structure and the second two-layered structure are removed; and pulling the five-layered structure to a cutting station where a notch is cut in the five-layered structure to form the partition. |
