| 主权项 |
1. Method for internally coating a hollow glass body comprising the steps of:
(a) applying by a spraying device, onto at least an internal surface of said hollow body, at least one coating composition in the form of liquid dispersion comprising at least one glass frit and at least one polymeric dispersing agent, said agent being present in such an amount that said composition has a thixotropic index lower than 200 second; said hollow body and said spraying device being in movement with respect to each other, said movement comprising keeping said hollow body rotating on itself during the application of said coating composition; (b) subjecting said internal surface comprising said coating composition to a thermal treatment, so as to obtain a vitrified coating layer. |
