| 摘要 |
PURPOSE: A method for manufacturing foam having an annual ring or zebra pattern is provided to maintain superior properties such as impact absorption and form the foam to have the annual ring or zebra pattern. CONSTITUTION: A method for manufacturing foam having an annual ring or zebra pattern is composed of steps of: manufacturing compounds by mixing and heating at least two mixtures, a cross-linking agent, a filler, a processing oil, and a pigment with each other; roll-mixing the compounds; forming sheets with the compounds; cutting the sheets as units(3) having a predetermined length; stacking the units differing in colors with each other and winding the units in a roll shape; forming foam(5) with the wound units; and cutting the foam to have the annual ring or zebra pattern.
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