ENGOBE Russian patent published in 2012 - IPC C04B41/87 C04B33/13 

FIELD: chemistry.

SUBSTANCE: invention relates to engobe compositions which can be used in making ceramic articles for decorative and art purposes. The engobe contains the following components, wt %: white-burning clay 68.0-81.3; scrap glass 5.0-7.0; colouring additive 0.5-15.0; barite 10.0-15.0. The colouring additive used can be ochre, cobalt oxide, chromium oxide or antimony oxide. The engobe additionally contains carboxymethyl cellulose in amount of 0.1-0.2 wt %.

EFFECT: reducing firing temperature of engobe articles to 1000-1100°C.

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