| 摘要 |
A method and apparatus for the production of air cell cushioning dunnage material, for protective cushioning purposes in packaging or other purposes, with the air cell product possessing substantial strength, and the ability to retain its original thickness under load. The method and apparatus are such that the apparatus can be halted in its operation without injurious effects to the dunnage product being produced, and can be restarted to again commence production of the cushioning dunnage product. The apparatus and method utilize flexible thermoplastic sheets or film of material, to produce the air cell product, with the plastic sheets being preferably formed of a composite of an intermediate stratum of relatively high density high melting point plastic, and exterior stratums of relatively low density, low melting point thermoplastic bonded to the intermediate stratum. Various other embodiments of flexible air cell sheeting are also disclosed.
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