METHOD FOR MANUFACTURING COLOURED GLASS-CERAMIC SLAB ARTICLES FROM A BASE MIX, GLASS FRIT FOR MANUFACTURING THE BASE MIX AND COLOURED GLASS-CERAMIC SLAB ARTICLE SO OBTAINED

摘要

Method for manufacturing coloured glass-ceramic slab articles from a base mix, comprising the steps of a) preparing a mix comprising a colouring pigment, at least one binder and a preponderant amount of a glass frit having a specific composition, b) distributing the mix in a forming support, c) compacting the mix, d) drying the mix, e) sintering the compacted and dried mix by firing to obtain a slab article, and f) cooling the articles under conditions such as to prevent - even partial - devitrification and/ or crystallization of the glass frit. The invention also relates to a glass frit for manufacturing base mixes and a coloured glass -ceramic slab article obtained from the base mix.