FIELD: human vital needs satisfaction.
SUBSTANCE: invention relates to a connecting element that is provided with a spine intended to insert the edge of a bundle of sheets, sheets of a cover on a spine to protect a stack of documents. The connecting element for the sheet bundle includes a spine for inserting the edge of the pack and two plastic cover sheets attached to the spine. In this case, the first of the cover sheets is transparent, and the second of the cover sheets is translucent, but not transparent.
EFFECT: proposed solution has better scratch resistance with a simultaneous attractive appearance.
10 cl, 3 dwg
Authors
Dates
2017-07-19—Published
2014-05-02—Filed