Quickly-dried developer for penetration flaw detection test and penetration flaw detection test method using same

An object of the present invention is to provide a quickly-dried developer. Since a developer layer is whitened immediately after coated with the developer and has concealability, in a penetration flaw detection test using a dying penetration liquid, a clear defect indicating pattern is formed while the developer is not dried so that an open defect portion can be detected and a coated portion canbe visually recognized, so that work efficiency is excellent. In addition, the fine open defect portion can be detected after drying, and a short drying time is achieved. The solution of the present invention is to provide a quickly-dried developer for the penetration flaw detection test, wherein the quickly-dried developer is formed by dispersing 6-20% by weight of titanium oxide and 6-20% by weight of calcium carbonate and/or magnesium carbonate in a volatile organic solvent. 本发明的课题是提供种如下所述的速干式显影剂：由于在涂布后显影剂层立即变白而存在隐蔽性，因此，在使用染色浸透液的浸透探伤试验中，在不等待显影剂干燥的情况下出现清晰的缺陷指示图案从而能够检测开口缺陷部且能够通过目视辨别已涂布的部位，因而作业效率优异，而且，在干燥后能够检测微细的开口缺陷部