Multiple pane and production method of multiple pane
The multiple pane includes: a first glass panel; a second glass panel disposed facing the first glass panel with a predetermined interval in-between; and a hermetically-bonding member hermetically bonding peripheries of the first glass panel and the second glass panel to form a hermetically-enclosed space between the first glass panel and the second glass panel. The multiple pane further includes an adsorbing member which is fixed on a surface of the first glass panel so as to be inside the hermetically-enclosed space, has a height equal to or less than a length of the predetermined interval, and is for adsorbing a gas inside the hermetically-enclosed space. The hermetically-enclosed space is made to be in a reduced-pressure state.
1. A production method of a multiple pane which includes a first glass panel and a second glass panel, the production method comprising:
an application step of applying a solution for an adsorbing member for adsorbing a gas inside a hermetically-enclosed space to be formed between the first glass panel and the second glass panel, on a glass surface of the first glass panel;
a hermetically-bonding step of hermetically-bonding peripheries of the first glass panel and the second glass panel to form the hermetically-enclosed space between the first glass panel and the second glass panel;
a pressure-reduction step of reducing a pressure inside the hermetically-enclosed space by evacuating a gas inside the hermetically-enclosed space;
a fixing step of fixing the adsorbing member to the first glass panel by drying the solvent of the applied adsorbing member on the first glass surface; and
a step of heating the adsorbing member on the first glass panel to cause discharging of a gas adsorbed on the adsorbing member while the hermetically-enclosed space is evacuated.
2. The production method of a multiple pane, according to claim 1 , wherein
the solution is applied so that the height of the adsorbing member is less than a length of an interval between the first glass panel and the second glass panel.
3. The production method of a multiple pane, according to claim 1 , wherein
in the application step for the adsorbing member, the solution is applied at a position within a predefined distance of an edge of the first glass panel.