Process for producing thin glass on roll
AssigneeAgfa-Gevaert
InventorsBartholomeus Verlinden, Pascale Steenhoudt
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Abstract
This invention relates to a continuous process for producing a web of thin, chemically hardened glass that can be wound on a roll. The process comprises the steps of (i) drawing glass, containing original alkali ions, to form a web of glass having a thickness equal to or lower than 1.2 mm and having a first and second major surface; (ii) directly after or during said drawing, treating both said surfaces of said web with chemical hardening means during less than two hours, replacing said original alkali ions by alkali ions having a larger radius; and (iii) after treating both said surfaces, winding said web on a core.
Claims9
A continuous process for producing glass on roll comprising the steps of
- i) drawing glass, containing original alkali ions, to form a web of glass having a thickness equal to or lower than 1.2 mm and having a first and second major surface;
- and
- ii) directly after or during said drawing, treating both said surfaces of said web with chemical hardening means during a time of less than two hours, replacing said original alkali ions by alkali ions having a larger radius;
- and
- iii) after treating both said surfaces, winding said web on a core.
Dependencies are inferred from the claim text.