| 摘要 |
A process for forming a packing material, comprising positioning a paper material on or adjacent to a die member, and forcing a multitude of cutting blades completely through the paper material and .into that die member at a multitude of spaced apart locations to form a multitude of slits in the paper material. These slits allow the paper material to be pulled or expanded into a three-dimensional shape that is both load bearing and resilient. In a first embodiment, the process is carried out in a flat die press, including upper and lower die members and with the cutting blades secured to the upper die member. In a second embodiment, the process is carried out in a rotary press including upper and lower rotatable rollers and with the cutting blades secured to the upper roller.
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