Document sleeves Donau A4 PP crystal 50 μm, pack of 25

Donau A4 document sleeves are made from clear polypropylene (PP) with a 50 μm thickness and come in a pack of 25. These transparent sleeves are designed to protect A4 papers, photos and certificates from dirt, moisture and abrasion while maintaining document visibility. Their crystal clarity makes them suitable for filing in standard folders and binders as well as for general archival storage at home, school or in the office.

Advantages

The sleeves provide a lightweight yet durable protective barrier that resists tearing and moisture. Their 50 μm polypropylene construction offers a balance between flexibility and stiffness, allowing easy insertion and removal of documents while keeping them flat. The crystal-clear finish preserves readability and colour accuracy of printed material and photographs. The neutral material minimises chemical interaction with paper, helping to reduce long-term degradation without adding bulk to storage.

Suitable for

• Protecting A4 documents such as reports, certificates and invoices
• Storing photographs and printed images for temporary or short-term display
• Organising classroom materials and student handouts
• Filing documents in folders and ring binders

Key specifications

• Format: A4 (suitable for standard A4 sheets)
• Material: polypropylene (PP)
• Thickness: 50 μm
• Transparency: crystal clear
• Pack quantity: 25 sleeves
• Edge: open on one side for document insertion

How to use

Slide documents carefully into the open edge of the sleeve, aligning paper corners to avoid creasing. For use in binders or folders, insert the sleeved document into the appropriate pocket or ringed sleeve support; ensure the sleeve lies flat to prevent folding. Avoid overfilling a single sleeve and keep heavier items supported to maintain sleeve shape and document integrity.

Usage recommendations

Store sleeves in a cool, dry place away from direct sunlight to preserve clarity and physical properties. For long-term archival storage of highly valuable documents or photographs, consider using polyester or archival-grade materials specifically tested for acid-free storage. Regularly inspect stored items for signs of moisture or mould and replace sleeves if they show damage or significant wear.