The invention relates to a method, and to an associated apparatus, for treating a container (1) comprising a glass wall (2) defining a receiving cavity (3) for receiving a product, said glass wall (2) having an inner face (4) and an opposite outer face (5), said glass wall (2) being provided with a first coating that includes a solid residual compound resulting from a step of dealkalization of the glass in the vicinity of the surface of said inner face (4) of said glass wall (2) to which said container (1) had previously been subjected, said method comprising a step of spraying the surface of said glass wall (2) with droplets of a liquid, in order to form on said glass wall (2), starting from said first coating, a second coating which includes said residual compound and which is more transparent and/or more uniform than said first coating.Treatment of glass-walled containers.

A chemically strengthened glass having a compressive stress layer formed in a surface layer thereof according to an ion exchange method, in which the glass has a surface roughness (Ra) of 0.20 nm or higher, a hydrogen concentration Y in a region to a depth X from an outermost surface of the glass satisfies the following relational equation (I) at X=from 0.1 to 0.4 (m), a surface strength F (N) measured by a ball-on-ring test under the following conditions is (F1500t.sup.2) relative to a sheet thickness t (mm) of the glass, and a surface of the glass has no polishing flaw:
Y=aX+b(I)
in which meanings of respective symbols in the equation (I) are as follows: Y: hydrogen concentration (as H.sub.2O, mol/L); X: depth from the outermost surface of the glass (m); a: 0.270 to 0.005; and b: 0.020 to 0.220.

A method for manufacturing antimicrobial glass includes the steps of: a) providing a glass with alkali metal ions; b) placing the glass in a first oven to perform semi-physical strengthening and dealkalization; and c) placing the glass in a second oven to perform chemical strengthening.

A method of manufacturing a strengthened glass substrate, the method including: thermoforming a glass substrate, wherein a surface of the glass substrate includes defective depressions generated by the thermoforming; forming a silica rich layer by adding an acid to the surface of the glass substrate including the defective depressions generated by the thermoforming; removing the silica rich layer and a portion of the defective depressions by cleaning the surface of the glass substrate on which the silica rich layer is formed with an alkali; and eliminating the remaining portion of the defective depressions by polishing the surface of the glass substrate including the remaining portion of the defective depressions.

A chemically strengthened glass having a compressive stress layer formed in a surface layer thereof according to an ion exchange method, in which a surface of the glass has polishing flaws, the glass has a texture direction index (Stdi) of 0.30 or more, a hydrogen concentration Y in a region to a depth X from an outermost surface of the glass satisfies the following relational equation (I) at X=from 0.1 to 0.4 (m), and a surface strength F (N) measured by a ball-on-ring test is (F1400t.sup.2) relative to a sheet thickness t (mm) of the glass:
Y=aX+b(I)
in which meanings of respective symbols in the equation (I) are as follows: Y: hydrogen concentration (as H.sub.2O, mol/L), X: depth from the outermost surface of the glass (m), a: 0.300 or more, and b: 0.220 or less.

A chemically strengthened glass having a compressive stress layer formed in a surface layer thereof according to an ion exchange method, in which the glass has a surface roughness (Ra) of 0.20 nm or higher, a hydrogen concentration Y in a region to a depth X from an outermost surface of the glass satisfies the following relational equation (I) at X=from 0.1 to 0.4 (m), a surface strength F (N) measured by a ball-on-ring test under the following conditions is (F1500t.sup.2) relative to a sheet thickness t (mm) of the glass, and a surface of the glass has no polishing flaw:

Y=aX+b(I)

in which meanings of respective symbols in the equation (I) are as follows: Y: hydrogen concentration (as H.sub.2O, mol/L); X: depth from the outermost surface of the glass (m); a: 0.270 to 0.005; and b: 0.020 to 0.220.

A chemically strengthened glass having a compressive stress layer formed in a surface layer thereof according to an ion exchange method, in which the glass has a surface roughness (Ra) of 0.20 nm or higher, a hydrogen concentration Y in a region to a depth X from an outermost surface of the glass satisfies the following relational equation (I) at X=from 0.1 to 0.4 (m), a surface strength F (N) measured by a ball-on-ring test under the following conditions is (F1500t.sup.2) relative to a sheet thickness t (mm) of the glass, and a surface of the glass has no polishing flaw:
Y=aX+b(I)
in which meanings of respective symbols in the equation (I) are as follows: Y: hydrogen concentration (as H.sub.2O, mol/L); X: depth from the outermost surface of the glass (m); a: 0.270 to 0.005; and b: 0.020 to 0.220.

A float glass for chemical strengthening, having a bottom surface to contact a molten metal during molding and a top surface facing the bottom surface. An absolute value of a difference between a normalized hydrogen concentration at a depth of 5 to 10 m that is a value obtained by dividing a hydrogen concentration at a depth of 5 to 10 m by a hydrogen concentration at a depth of 50 to 55 m in the top surface and the normalized hydrogen concentration at a depth of 5 to 10 m in the bottom surface is 0.35 or less.

The present invention relates to a method, a device for implementing the method, and a flask obtained by said method for passivating the inner wall of a glass container capable of containing a pharmaceutical grade material. To treat or inhibit the inner surface of the container, said inner surface of the container is treated via ion exchange between the container and an aqueous extraction liquid such that the measured hydrolytic resistance of said surface is divided by at least two.