| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated sheet glass for a main-entrance door, capable of being inexpensively formed and easily obtaining heat-resistant performance and an illusion of greater depth by using water glass, whereto a design is imparted, as an intermediate layer. SOLUTION: The laminated sheet glass for the main-entrance door is formed by laminating at least two panes of glass at their mating surfaces and characterized by interposing the water glass, whereto the design is imparted, between the mating surfaces of the panes for the purpose of attaching the mating surfaces by pressure. The design is formed according to the setting of, for example, a pigment added to the water glass, a granular addition agent or a cellular agent added thereto, or a condition for forming the water glass. |
