Envelope B4 Kuvert 250x353 mm, 100 g/m²

Kuvert B4 envelope sized 250 x 353 mm, made from 100 g/m² paper, is designed to carry B4 documents, brochures and other flat materials without folding. The neutral construction provides a smooth exterior suitable for printed or hand-addressed labels and allows reliable sealing for postal or in-person delivery. The envelope is compatible with manual handling and many automated mailing systems.

Advantages

This envelope combines a proportionally rigid 100 g/m² paper with a B4 format that accommodates unfolded documents, reducing the need for additional folders or protective covers. The plain surface minimizes ink feathering and allows for clean addressing and barcodes. The standardized dimensions and consistent paper weight support predictable handling in office workflows and automated inserters.

Suitable for

• Dispatching unfolded B4 documents and brochures
• Office correspondence and internal record transfer
• Mailings and postal submissions that require flat presentation
• Storage of drawings, certificates or printed matter without creasing

Key specifications

• External format: 250 x 353 mm
• Material: paper, 100 g/m²
• Closure type: standard adhesive flap (neutral construction)
• Surface finish: plain, suitable for printing and labeling
• Color: neutral/white (plain for addressing)

How to use

Insert B4-size documents flat into the envelope so items remain unfolded and lie evenly against the paper surface. Close the adhesive flap according to the adhesive type—either peel-and-seal or moistenable—ensuring the flap is pressed firmly to create a secure closure. For postal mailing, affix address information and postage on the front side of the envelope in compliance with local postal service requirements. When using automated inserters, verify that the envelope orientation and flap position match the equipment specifications.

Usage recommendations

Store envelopes in a dry, climate-controlled environment to prevent warping or moisture absorption. For valuable or sensitive contents, combine the envelope with an internal protective sleeve or use a padded alternative. When sending through automated systems, run a small test batch to confirm compatibility and prevent jams.