Envelope C65 (114x229) with strip and box on the left 45x90mm.

C65 Envelope with Left Window – A Professional Solution for Business Correspondence

In the professional world, the first impression starts before the letter is even opened. The C65 envelope with a left window is designed to facilitate bulk mailing, ensure document security, and give your business correspondence an official, organized look. We have tested this product and find it to be a highly reliable choice for daily office tasks.

Fast and Efficient Sealing

This model features a Peel-and-Seal strip. This is one of the most convenient sealing methods available, offering several advantages:

• No moistening required: Simply peel off the protective film and press down – it's hygienic and fast.
• Longevity: The adhesive layer under the protective strip remains active significantly longer than traditional gummed envelopes.
• Workflow speed: Ideal when you need to prepare a large volume of letters at once (e.g., during billing cycles).

Maximum Information Security

One of the biggest advantages of this envelope is its blue interior lining. The special internal print prevents the content from being seen through when held up to the light. This is critical for sending:

• Invoices and financial statements.
• Confidential contracts.
• Documents containing personal data.

Precision and Compatibility

The 45x90 mm window on the left side is configured according to standard business document templates. Using this envelope saves time by eliminating the need to print addresses directly onto the envelopes – simply fold the document correctly so the recipient's details are visible through the transparent window.

Technical Summary

• Format: C65 (114 x 229 mm).
• Paper: White offset, 80 g/m² (sturdy and high quality).
• Sealing: Self-adhesive strip with a peel-off film.
• Window: Left side, dimensions 45x90 mm.
• Quantity: Economical pack of 1000 units.
• Certification: Complies with strict quality standards (Certificates No. 1, 2, 3).

Verdict

This is an excellent choice for accounting departments, logistics centers, and any business that values time-saving and security. The C65 format is versatile, and the large 1000-unit pack ensures the best price-performance ratio on the market.

Frequently Asked Questions (FAQ)

Is the window plastic suitable for barcode scanning?

Yes, high-quality transparent film is used for the window, allowing postal service scanners to read addresses and barcodes without errors.

How long do the envelopes remain usable (adhesive shelf life)?

Due to the peel-and-seal technology, the adhesive remains effective for up to 1–2 years if stored in a dry, cool place away from direct sunlight.