VITREOUS PRINTING BY MEANS OF A SILKSCREEN PROCESS

摘要

The invention relates to an enamel-free paste containing a matrix based on a Si polymer that can be obtained by the hydrolysis and condensation of at least one silane of general formula RxSi (OR')4-x with at least one polysiloxane of general formula [R2SiO]y or R3Si-(O-SiR2)y-O-Sir3, wherein: the radicals R can independently be alkyl, aryl, arylalkyl alkylaryl or H; the radicals R' can independently be H, methyl, ethyl, n-propyl or i-propyl, n-butyl, iso-butyl, sec-butyl or tert-butyl; x represents 0 or 1 (for the first silane); x represents 0, 1, 2, 3 or 4 (for each subsequent silane); and y represents a whole number which is at least 2 and can be approximately infinite. Said paste also comprises a high-boiling organic solvent having a minimum boiling point of 100 DEG C and containing a pigment. Said solvent, however, is not an alcohol with a boiling point below 100 DEG C.