| 简介 |
PROBLEM TO BE SOLVED : To provide a coating material which is smooth and in which a constituent natural rare color material can exhibit its commercial value because agglomeration occurring due to its grinding or drying can be avoided, and to provide a method for producing the same.SOLUTION : The coating material is made from a raw material being the natural rare color material prepared by wet-pulverizing a crude powder of the natural rare color material while mixing it with a solvent for the coating material. |
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