noun
seal pad; under-sheet pad for seal impression
A pad placed under a sheet of paper before stamping a seal (hanko) to make the imprint clearer. Specialized term used in contexts like calligraphy, official documents, or traditional arts.
印褥を敷いてから印を押すと、きれいに押せる。
If you place a seal pad under the paper before stamping, you can get a clean impression.