White paper envelope with self-adhesive strip B4 250x353

📩 White B4 paper envelope (250×353 mm) - self-adhesive closure (SK), 90 g/m²

Do you need an envelope that will fit A4 documents with room to spare or larger materials, while providing convenient sealing and professional appearance? The White B4 paper envelope (250×353 mm) with SK closure (self-adhesive) is the perfect solution for companies, offices and private individuals who value functionality and quality. Made from offset paper with a weight of 90 g/m², it remains stiff, durable and ready to protect your shipments.

🌟 Key features of the B4 envelope (250×353 mm)

• B4 Format: larger than C4, it can fit A4 sheets (also in folders) or folded A3 sheets. The larger size provides more space, protecting documents from creasing.
• SK closure (self-adhesive): two layers of glue (on the flap and on the body of the envelope). By pressing the flap against the edge, you get an instant, permanent closure, without moistening or tearing off the strip.
• Grammage 90 g/m²: sturdy offset paper guarantees appropriate stiffness and helps protect the shipment from damage, while also giving a professional appearance.
• No imprint: the interior of the envelope is smooth and bright, which can facilitate personalization or placement of additional information inside.
• White color, no window: freedom in addressing - handwritten note, stamp, sticker or print - choose what best suits your correspondence.
• Eco-friendly paper construction: the whole thing is recyclable, adhering to the eco-friendly standards of companies and institutions.

📄 Use of the white B4 envelope (SK, 90 g/m²)

• 📑 A4 format documents: reports, offers, contracts or invoices - B4 provides extra clearance around the sheets, preventing damage.
• 🎨 Artistic works, portfolio: A3 sheets (folded in half) or numerous graphic materials that require more space.
• 📂 Document folders: B4 easily accommodates documents packed in a thin folder, ensuring a neat appearance of the shipment.
• 🔖 Marketing materials, catalogs, brochures: an excellent choice when wanting to send extensive advertising materials in an undamaged condition.

💼 Who can benefit from the B4 paper envelope (90 g/m², SK)?

• 🏢 Offices and institutions: sending documents to clients, offices or other branches, with the convenience of self-adhesive closure and more spare space.
• 🏠 Private individuals: sending large files of notes, photos or other materials in A4 or A3 format (folded), without the need to crumple.
• 🎨 Creative and design agencies: portfolio, project mood boards, graphics - everything in one place, without creases.
• 🛒 Online stores: including instructions, advertisements, brochures in A4 format, solidly and aesthetically packaged.

⚖️ Why choose a B4 envelope with self-adhesive closure (SK)?

Larger size B4 provides extra space and convenience, especially when you need to send bulky documents or folders. Meanwhile, SK closure guarantees quick, hassle-free handling - the lack of a security strip (as in HK) means just pressing the flap for sure closure. It's the perfect compromise between ease of use and durability of sealing.

🎨 Personalization and other options

If you want to distinguish your correspondence, order company printing on envelopes or choose packaging with individual graphics. It's also worth checking:

• Custom-sized boxes - design packaging tailored to the needs of your business yourself.
• Printed boxes - create unique packaging that supports the image and marketing of your brand.

Thanks to this, your shipments will gain a consistent and professional appearance already at the delivery stage.

💬 Need larger quantities or custom solutions?

We invite you to use the PRO form. We will be happy to help adjust envelopes and packaging to your individual requirements, supporting the success of your correspondence and shipping.

White paper envelope B4 (250×353 mm), 90 g/m², self-sealing closure (SK) - choose convenience, durability and elegance when sending larger formats now!