These are color ink pads from Kobaien. It is called Inshu ( 印朱 ), which is sometimes used in the same sense as Chinese Yìnní ( 印泥 ), but there are some differences.
First of all, Yìnní ( 印泥 ) is made in China, while Inshu ( 印朱 ) is made in Japan. The materials used for each are slightly different.
Inshu ( 印朱 ) is made from sublimated mercury sulfide, called Ginshu ( 銀朱 silver red ink), with pigments, plant and Japanese paper fibers, then kneaded with castor oil, pine resin, and other ingredients.
Inshu ( 印朱 ) is said to be slightly harder than Chinese Yìnní ( 印泥 ).
*The colour and shape of containers and boxes will vary.
Ms. Junko Azukawa, a contemporary calligrapher and ink painter in Australia, explains how to use stickinks.
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