| 摘要 |
PURPOSE: A molding structure of a document envelope is provided to prevent damage to corners of the envelope due to corners of a document received therein, and to prevent damage to the envelope by the load of the document. CONSTITUTION: In a document envelope(a) having front and rear sheets(1,2,2') made of papers or synthetic resins, envelope side surfaces(3,3') between the front and rear sheets, center folding lines(4,4'), and upper and lower cover sheets(5,5'), the side surfaces are integrally formed with upper and lower reinforcing plates(100,110). At the upper portion of the rear sheet is formed a cutting portion(120) and at the lower portion thereof is formed a bottom reinforcing plate(130). At the lower portions of the front and rear sheets are formed lower folding lines(140,150), and at the lower portions of the side surfaces are formed thickness surface folding lines(160).
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