White paper envelope with self-adhesive strip C4 229x324

📩 White C4 Paper Envelope (229×324 mm) - Self-adhesive Strip Closure (HK), 90 g/m²

Are you looking for a reliable C4 envelope that can fit an A4 sheet without folding and allows for a quick closure without unnecessary moistening or glueing? The White C4 Paper Envelope (229×324 mm) with a self-adhesive strip (HK) is an excellent choice for businesses, offices, and individuals who care about a professional appearance and efficient packaging. The offset paper with a weight of 90 g/m² ensures rigidity and durability, so your documents or materials will arrive in an undamaged condition.

🌟 Key Features of the C4 Envelope (229×324 mm)

• C4 Format: perfect for sending A4 documents (without the need to fold) - provides a professional appearance for important correspondence.
• Self-adhesive strip (HK): you peel off the protective strip, press the flap and done - quick, secure closing without mess and moistening.
• 90 g/m² weight: offset paper providing sufficient stiffness and protection for the contents, while maintaining the lightness of the shipment.
• White color, without underprint and window: smooth, elegant surface - you can address the envelope as you wish (by hand, with stamps or stickers).
• Eco-friendly design: completely paper, suitable for recycling, which supports the eco-friendly standards of every company.

📄 Application of the C4 white envelope with HK strip

• 📑 Official documents and letters: reports, contracts, business proposals in A4 format arrive in undamaged shape.
• 📂 Scientific papers, diplomas, certificates: the C4 envelope provides sufficient space, preventing creases.
• 📢 Marketing materials: brochures, catalogs, folders - sent in a professional, neat package.
• 🏠 Private correspondence: maintains an aesthetic appearance and protects valuable documents, photos or projects.

💼 Who will benefit from the C4 paper envelope (90 g/m², HK)?

• 🏢 Offices and administrations: quick sealing thanks to the HK strip speeds up the process of sending mass correspondence.
• 🏠 Individuals: who need envelopes for important documents, photos or children's works, which should not be bent.
• 🎨 Advertising and creative agencies: sending promotional materials, portfolios or samples in A4 format.
• 🛍️ Shops and service companies: attaching instructions, invoices or other larger format prints to orders.

⚖️ Why choose a C4 envelope with a self-adhesive closure (HK)?

Closing envelopes with a HK strip is hygienic and efficient - the glue protects the security strip, which you pull off just before sealing. This avoids unwanted accidental adhesions or the need to moisten the glue, which can be troublesome with larger volumes. No moistening, no mess - and the contents remain well protected.

🎨 Personalization and other solutions

If you desire a unique design or print (e.g. company logo, marketing slogans), take a look at our offer:

• Custom boxes – design packaging for various needs and dimensions yourself.
• Printed boxes – personalize packaging to strengthen your brand image.

Thanks to this, your correspondence and packaging will reflect the professionalism and visual consistency of your brand.

💬 Need a larger number of envelopes or an individual offer?

Use our PRO form to discuss detailed needs and ask for personalized projects. We will be happy to advise and prepare the best solution so that your shipments look perfect.

White C4 paper envelope (229×324 mm), 90 g/m², with self-adhesive closure (HK) – choose convenience, professionalism and safety in sending A4 format documents!