N. de solicitud: US20070819117
N. de publicación: US2007267770
A process for the functional regeneration of the porosity of the materials used to make moulds for moulding ceramic objects, when the pores have been damaged by use of the mould, comprises the sequential execution of at least two successive steps of an ordered sequence which includes the steps of: eliminating contamination caused by organic substances from the mould; eliminating contamination of biological origin from the mould; attacking inorganic encrustations and eliminating inorganic substances which have infiltrated the pores of the mould, the initial step of the process being preset according to the nature of a predetermined contaminating agent.
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