ENAMEL SLIP Russian patent published in 1996 - IPC

FIELD: production of enamel. SUBSTANCE: proposed enamel slip contains (mass parts): frit 100, clay 4-7, borax 0.05-0.5, finely ground sand 0.1-10, electrolyte 0.05-0.2, pigments 2-5, water 35-45. Aforementioned frit contains (mass %): silicium oxide having essential formula SiO₂, 42-48, boron oxide having essential formula B₂O₃ 13-15, potassium oxide having essential formula K₂O 3-5, sodium oxide having essential formula Na₂O 18-21, zirconium oxide having essential formula ZrO₂ 2-5, zinc oxide having essential formula ZnO 2-5, calcium oxide having essential formula CaF₂ 5-7, aluminium oxide having essential formula Al₂O₃, 3-5, lithium oxide having essential formula Li₂O. 1-3. EFFECT: improves quality of desired product. 3 tbl