The coloring material of logwood is used in dyes, inks, and stains.
原木的着色材料用于染料，油墨和污渍。
This invention relates to a cylinder press device and a printing method using powder type coloring material.
本发明涉及一种粉态色料滚筒印刷装置和印刷方法。
A yellow or red crystalline compound, C16H 14O 6·3H 2O, the coloring material of logwood, that is used in dyes, inks, and stains.
苏木精，苏木紫，苏木素：一种黄色或红色的晶体化合物，C16H 14O 6·3H 2O，是洋苏木的着色物质，用于染色、着墨和喷涂。
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