Envelope Sigel DU608 DIN long (DL) without window for letters and greeting cards

Sigel DU608 is a DIN long (DL) envelope without a window designed for sending letters, greeting cards and invitations. The envelope accommodates standard DL-format documents (110 x 220 mm) and provides a plain front surface suitable for handwriting, rubber stamps or adhesive labels. The neutral appearance and unprinted front make it a practical choice for both private and business mailings where a clean presentation is required.

Advantages

The envelope is manufactured to fit common DL-format contents and offers a consistent size and shape for stacking, inserting and postal processing. Without a transparent window, it preserves the privacy of enclosed contents and allows full control over addressing or decoration. The plain front is compatible with standard inkjet and laser printers as well as manual addressing methods, and the material provides sufficient opacity for everyday correspondence.

Suitable for

• Mailing letters and invoices in DL format
• Sending greeting cards and invitations
• Office correspondence and document dispatch
• Projects requiring blank fronts for addressing or labeling

Key specifications

• Format: DIN long (DL) designed for 110 × 220 mm contents
• Window: none (solid front)
• Surface: plain, suitable for printing and handwriting
• Closure type: standard gummed or self-seal flap (as supplied)
• Opacity: suitable for everyday privacy and standard documents

How to use

Insert the DL-size document or card into the envelope so that the contents lie flat and align with the flap. Seal the envelope following the manufacturer’s closure method, then address the front either by handwriting, using adhesive labels or by printing directly on the surface. Ensure that the envelope dimensions and weight conform to postal service requirements before sending.

Usage recommendations

For best results when printing addresses directly on the envelope, test a single envelope in your printer to confirm feed and print settings. When sending confidential documents, use an additional inner sheet or increase opacity by choosing heavier paper stock if required.