Patent ID: 6251212
Filing Date: 2001-06-26
Classification: C03C,G09F,Y10T

Abstract:
A method of applying a composite ceramic label to a substrate, comprising the steps of:(a) providing a composite ceramic label comprising:(1) a fired ceramic body comprising a base layer, said base layer including:(i) a first glassy phase; and(ii) a first refractory phase interspersed with said first glassy phase, said first glassy phase being capable of wetting a substrate at an application temperature; and(2) a top layer comprising:(iii) a second glassy phase; and(iv) a second refractory phase interspersed with said second glassy phase, said top layer provided on said fired ceramic body, wherein there is sufficient color contrast between the top layer and the fired ceramic body such that a code pattern is optically discernible based on the contrast;(b) heating at least one of said substrate or said composite ceramic label to the application temperature; and(c) after step (b), attaching said composite ceramic label to said substrate such that said first glassy phase bonds to said substrate.