bleu fusé

CONT: Beaucoup de pièces ont été décorées en bleu, d'un cobalt foncé qui a parfois fusé dans la glaçure.

CONT: ... it appears to add attraction and character to the traditional blue and white, and is now described in America as ""flow blue"".
OBS: Transfer printing could be used on porcelain or pottery, over the glaze or under the glaze ... however, it was difficult to avoid some slight blurring of the lines in a pattern when the glaze was fused over it.