{"id":25465,"date":"2025-05-14T19:49:00","date_gmt":"2025-05-14T10:49:00","guid":{"rendered":"http:\/\/www.jiyugaoka-violin.com\/site\/?p=25465"},"modified":"2025-05-14T21:17:37","modified_gmt":"2025-05-14T12:17:37","slug":"may-14-2025-1012%e3%80%80%e3%80%80%e3%80%80","status":"publish","type":"post","link":"http:\/\/www.jiyugaoka-violin.com\/site\/archives\/25465","title":{"rendered":"May 14, 2025 10:12\u3000\u3000\u3000"},"content":{"rendered":"

Varnishing process
\nStep 15
\n\"\"\"\"\"\"<\/p>\n

“Iron mordanting”
\nIron mordant is a method of dyeing wood black by reacting iron with tannins.
\nWhen the iron in the iron mordant solution penetrates the wood, it reacts with the tannins in the wood, gradually changing the color to a dark gray.
\nWhen using iron mordant, care must be taken to maintain high “fastness.”
\nSo when dyeing, it is important to use a dark color.<\/p>\n

\"\"\"\"\"\"
\nThe iron mordant process began yesterday.<\/p>\n

\"\"\"\"\"\"<\/p>\n

Test coating with 5% aqueous iron mordant solution.
\nAfter a year and a half, it has become transparent.
\n\"\"<\/p>\n

After a few years, it was iron mordanted so that it would look like this cello.
\nTraces of iron mordant create a transparent navy blue image.
\n\"\"GIOVANNI GRANCINO ( 1637-1709 ) Cello, Milan 1690\u5e74\u9803<\/p>\n

 <\/p>\n

Joseph Naomi Yokota<\/p>\n","protected":false},"excerpt":{"rendered":"

Varnishing process Step 15 “Iron mordanting” Iron mordant is a method of dyeing wood black by reac … \u7d9a\u304d\u3092\u8aad\u3080 May 14, 2025 10:12\u3000\u3000\u3000<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[15],"tags":[],"class_list":["post-25465","post","type-post","status-publish","format-standard","hentry","category-15"],"_links":{"self":[{"href":"http:\/\/www.jiyugaoka-violin.com\/site\/wp-json\/wp\/v2\/posts\/25465","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.jiyugaoka-violin.com\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.jiyugaoka-violin.com\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.jiyugaoka-violin.com\/site\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.jiyugaoka-violin.com\/site\/wp-json\/wp\/v2\/comments?post=25465"}],"version-history":[{"count":4,"href":"http:\/\/www.jiyugaoka-violin.com\/site\/wp-json\/wp\/v2\/posts\/25465\/revisions"}],"predecessor-version":[{"id":25488,"href":"http:\/\/www.jiyugaoka-violin.com\/site\/wp-json\/wp\/v2\/posts\/25465\/revisions\/25488"}],"wp:attachment":[{"href":"http:\/\/www.jiyugaoka-violin.com\/site\/wp-json\/wp\/v2\/media?parent=25465"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.jiyugaoka-violin.com\/site\/wp-json\/wp\/v2\/categories?post=25465"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.jiyugaoka-violin.com\/site\/wp-json\/wp\/v2\/tags?post=25465"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}