Envelope NC Koperty B-4 white, pack 250 – model 31721030

NC Koperty B-4 white envelopes, model 31721030, are plain white paper envelopes sized for B4 documents and items folded to fit. Supplied in a pack of 250, these envelopes are designed for mailing, storing and protecting larger-format paperwork in office, administrative and print environments. The envelopes have a simple, unprinted exterior and a standard gummed or self-seal closure to secure contents during transit or storage.

Advantages

These B-4 envelopes offer consistent sizing for larger documents and provide a protective barrier against dirt and light handling. The plain white finish creates a neutral, professional appearance suitable for business correspondence and internal file organization. Packaged in a bundle of 250, they allow bulk purchasing for frequent mailing needs and reduce the need for repeated restocking. The construction and closure type are intended to keep contents secure while remaining compatible with common handling and filing workflows.

Suitable for

• Mailing B4-format documents and larger papers
• Storing certificates, sheets and printed proofs
• Sending folded documents that fit B4 envelopes
• Office bulk mailing, print shops and administrative departments

Key specifications

• Format: B4-compatible dimensions for flat documents and folded sheets
• Color: white
• Material: paper
• Pack quantity: 250 envelopes per pack
• Closure: standard gummed or self-seal (as supplied)

How to use

Insert a B4 document or folded papers into the envelope so the contents lie flat and the flap can be sealed without bulging. Moisten the gummed flap or remove the protective strip if self-seal, then press firmly along the flap to ensure a secure closure. Label or address the envelope on the front as required, and apply postage or courier labels before dispatch. For storage, place sealed envelopes in a dry, flat area to prevent bending or moisture exposure.

Usage recommendations

Use these envelopes for standard mailings and internal document transfers. Avoid overfilling to prevent tearing at the seams, and store unopened packs in a cool, dry place to maintain paper quality. When sending important or sensitive documents, consider additional protection such as inner sleeves or registered post services.