Envelopes NC Koperty C6 with Peel-and-Seal Strips, White, 50 pcs

NC Koperty C6 envelopes with peel-and-seal strips are white paper envelopes designed for standard C6 correspondence. Supplied in a pack of 50, each envelope is sized to fit C6 format letters, cards and small documents. The peel-and-seal closure simplifies sealing and provides a consistent, secure bond without the need for moisture or additional adhesive.

Advantages

These C6 envelopes combine a neutral white finish with a peel-and-seal strip for quick and reliable closure. The pre-applied adhesive strip reduces handling time and ensures a uniform seal across the flap. The envelopes are lightweight yet sufficiently stiff for automated sorting and manual handling in office or postal workflows.

Suitable for

• Mailing letters, invoices and payment reminders
• Sending invitations, greeting cards and announcements
• Internal office correspondence and administrative documents
• Bulk mailing and direct mail campaigns

Key specifications

• Format: C6 (fits C6 correspondence and small documents)
• Colour: white
• Closure type: peel-and-seal adhesive strip
• Pack quantity: 50 envelopes
• Material: paper

How to use

Insert the document or card into the envelope so it sits flat and aligns with the flap. Remove the protective backing from the peel-and-seal strip, fold the flap down and press firmly along the seam to secure the closure. For heavier contents or long-distance mailing, apply even pressure across the seal and ensure the envelope edges are aligned to avoid bulging.

Usage recommendations

Store envelopes in a cool, dry place away from direct sunlight or heat sources to preserve the adhesive strip and paper quality. For reliable postal processing, avoid overfilling and ensure the sealed flap lies flat. Test one envelope before high-volume mailing to confirm seal performance with your materials and inserts.