| 摘要 |
Binding element (1) for the use of binding a bundle of leaves (9), whereby the binding element (1) comprises a spine (2) for enclosing an edge of the bundle (9) and two plastic cover sheets (3,4) fastened to the spine (2), characterised in that a first of the cover sheets (3) is transparent and the second of the cover sheets (4) is translucent but not transparent. The binding element allows to avoid that a double stock must be kept of binding elements with only transparent cover sheets and of binding elements with only translucent cover sheets which are not transparent and allows a double use of the binding element to make booklets, either with the transparent cover sheet turned to the front or with the transparent cover sheet turned to the back. |
