Quality Requirements Of Float Glass (In Italian)

The excellent physical properties of float glass have contributed to the large diffusion of this material in architecture, where large, surface-treated glass windows are adopted to improve energy saving, thermal, luminous and acoustic comfort as well as safety. In this paper, a number of recurrent optical defects are examined (i.e. stones, cord, etc), colourimetric features, particulary for a coloured or clear, low-iron glass, together with some defects that may arise during thermal tempering (bloom) and other tansformation processes (coating, laminating, etc) as a consequence of poor quality of the float sheet.