White paper envelope with window and self-adhesive strip C4 229x324

📩 White paper envelope with C4 window (229×324 mm) - HK strip closure, imprint, 90 g/m²

Are you looking for an envelope that can accommodate A4 documents without folding, ensures convenient addressing through the window, and guarantees discretion of correspondence? Choose the white paper envelope C4 (229×324 mm) with a self-adhesive strip (HK) and an imprint. Made from 90 g/m² offset paper, it is not only durable but also looks professional and elegant with every shipment.

🌟 Key features of the C4 (229×324 mm) envelope with a window

• C4 Format: perfect for A4 documents, without the need to fold them. You retain the original shape and don't damage the paper.
• Address window: allows you to display the recipient's data, printed on the document. You save time and eliminate the need for address labels.
• HK closure (with self-adhesive strip): quick and hygienic - just peel off the strip and press the flap for a permanent closure, without moistening or additional glue.
• Inner print: protects the content from shining through, ensuring confidentiality and a professional look.
• 90 g/m² weight: offset paper with increased durability, which guarantees rigidity and safe storage of even several sheets.
• White color: elegant finish, easy to print or label - suitable for business, official or private correspondence.

📄 Application of the white C4 envelope with a window and HK strip

• 📑 Official documents: contracts, certificates, reports - A4 format without creases or unsightly folds.
• 📢 Promotional materials: brochures, catalogs or A4 size leaflets - they maintain their shape and professional appearance.
• 💌 Bulk mailings: correspondence with the address printed on the document (visible through the window) significantly speeds up the entire shipping process.
• 🏢 Offices and agencies: invoices, official letters, letters to contractors - faster sealing thanks to the HK strip and convenient addressing without additional stickers.

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

• 🏢 Companies and corporations: high-quality paper and a solid closure enhance credibility and project a professional image.
• 🛍️ Online stores, e-commerce: clear sending of invoices or instructions in shipments to customers.
• 💼 Advertising agencies and marketing departments: extensive advertising materials look impeccable in a C4 envelope.
• 📨 Institutions and offices: easy letter templates with the address visible through the window, reducing the time of document distribution.

⚖️ Why choose an envelope with a self-adhesive strip (HK) and underprint?

The HK system allows you to safely and quickly close the envelope - just peel off the strip, which eliminates the need for moistening or additional glue. The underprint additionally increases privacy, preventing the contents from being seen from the outside. Combined with a high grammage (90 g/m²), A4 format documents will maintain an impeccable form and a professional appearance.

🎨 Personalization and other possibilities

Do you want to highlight your shipments? We will make a company print - logo, graphics or promotional slogans. In addition, we recommend:

• Custom-sized boxes - design boxes for other formats and logistical needs.
• Printed boxes - create packaging consistent with the brand image that will attract your customers' attention.

Thanks to personalized packaging and envelopes, your correspondence will make an impression at the stage of receipt.

💬 Need a larger quantity or an individual quote?

Use our PRO form to order larger quantities of envelopes or consult the details of personalization. We will be happy to help in choosing optimal packaging solutions for your business.

White paper envelope with C4 window (229×324 mm), 90 g/m², print and HK strip closure - take care of convenience, aesthetics and discretion when sending A4 format documents!