| 摘要 |
PURPOSE: Sponge molded midsole is provided which is naturally decomposed after a fixed time passes away so that it is greatly helpful in improving environment. CONSTITUTION: The sponge molded midsole is consisted of a part which is significant in property, color, adhesion power or so on and the other part which is less significant than the first part in shoe functions like property, color, adhesion power or so on. In the second part compound, a natural organic packing agent, that is naturally decomposed, is mixed as the function of compound, the second compound is extruded to be surrounded by the first compound and the extruded compound is crosslinked, foamed and molded in a hydraulic foam press to produce the sponge molded midsole.
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