| 摘要 |
PROBLEM TO BE SOLVED: To provide a blocking-preventing method for a hot melt having an adhesive property during storage, or the like, capable of preventing the blocking with a relatively simple operation and making a mixing of impurities as less as possible. SOLUTION: A surface of a cooled and solidified hot melt block having an adhesive property is elastically enlarged. After particulates, for example, powders of calcium carbonate, silica, talc, zeolite, or the like, for preventing deposition are deposited on the enlarged surface, the enlarged surface is returned to the state before enlarged.
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