초록 ▼

Heat sealing of foam-paper laminates and the like around articles to cushion them. Foam can be coated with anti-stat and/or corrosion inhibitor to protect articles against static electricity and/or corrosion. Such coatings can reduce the heat sealing temperature. Laminate portions to be heat sealed

Heat sealing of foam-paper laminates and the like around articles to cushion them. Foam can be coated with anti-stat and/or corrosion inhibitor to protect articles against static electricity and/or corrosion. Such coatings can reduce the heat sealing temperature. Laminate portions to be heat sealed can be pre-heated to shorten heat sealing dwell.

대표청구항 ▼

In the process of automatically packaging a series of articles to be protected against mechanical shock as well as against static electricity or corrosion, the improvement according to which the articles are successively sandwiched between the foam faces of sheets of backed plastic foam in which the

In the process of automatically packaging a series of articles to be protected against mechanical shock as well as against static electricity or corrosion, the improvement according to which the articles are successively sandwiched between the foam faces of sheets of backed plastic foam in which the foam is a cushioning layer not over about 3/16 inch thick adhered to backing that is not over about 1/16 inch thick but has a tensile strength at least twenty times that of the foam, the face of the sandwiching foam is coated with an anti-stat or corrosion-inhibiting layer, the backing is or is a laminate of aluminum foil, and the sandwiched sheets are heat-sealed to each other by applying the heat-sealing heat to the backing.