is the German term for inglaze decoration and describes a certain decoration form and manufacturing process. In this case, the paint used for decorating is chemically more like a glaze and does not require a final covering as it directly fuzes with the body, resulting in a permanent decoration.
The term underglaze or underglaze decoration descibes items that also have a very durable decoration. Such items are fired once more following the decoration process and receive a final glaze finish that protects the decoration.
A third method is described by the term overglaze or overglaze decoration which stands for a form of finish that is often found on older decoration studio items and is very difficult to clean due to the fact that the decoration is not protected. Certain decoration aspects however profited from the absence of a final glaze, hence overglaze decorations had (and still have) their own justification.
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