| 摘要 |
A method for packaging in block form a sheathed hot-melt adhesive product comprises the steps: (a) of continuously supplying a sheathed hot-melt adhesive product, (b) of immersing the sheathed hot-melt adhesive product in a liquid refrigerant, (c) of pressing the sheathed adhesive product at a portion thereof, (d) of ultrasonically welding the sheathed adhesive product at the pressed portion; and (e) of cutting the sheathed adhesive product into a block at the pressed portion. A block of sheathed hot-melt adhesive product and an installation for packaging a sheathed hot-melt adhesive product are also provided.
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