Stretchable Labeling Sleeve With Movable Flap for Object Protection

A protective flap made of flexible plastic material is introduced as an intermediary element between the container and the paper document. This flap acts as a mediator that absorbs mechanical stresses during positioning and packaging operations, preventing direct transmission of forces to the document. The flap can be opened to access the document while keeping it protected when closed, thus resolving the contradiction between providing information access and protecting the document quality.

The protective flap is designed with specific dimensional parameters (size, thickness, material properties) that allow it to flex and deform elastically when passing between the cylinders of the shaping machine. The flap's parameters are optimized to withstand compressive forces without permanent deformation, enabling the positioning operation to proceed without damaging the sleeve, document, or stopping the machine.

The information system is segmented into two functional parts: a protective flap that remains attached to the sleeve and a detachable explanatory note. The flap provides permanent protection and housing for the document, while the note can be detached when no longer needed. This segmentation allows the information to be separated physically while maintaining its quality, as the document remains protected within the flap structure even when the note is removed.