Envelope C5 NC Koperty white 90 g/m² 162×229 mm pack 50 pcs with blue underprint

Envelope C5 NC Koperty white 90 g/m² 162×229 mm pack 50 pcs with blue underprint is a standard C5 format envelope designed to accommodate A5 documents, letters and brochures without folding or with a single fold. Made from 90 g/m² white paper, the envelope provides a balance of opacity and stiffness suitable for everyday mailing and office circulation. The blue underprint helps conceal contents and provides a discreet, uniform interior appearance. This pack contains 50 envelopes and is intended for routine correspondence, administrative mailings and situations where a consistent C5 size is required.

Advantages

The envelopes are produced from 90 g/m² paper that offers reliable durability during sorting and handling while remaining compatible with most manual addressing methods and many office printers. The white exterior presents a neutral, professional look, while the blue underprint increases privacy by reducing visibility of enclosed documents. Supplied in a 50-piece pack, the product simplifies stock management for small to medium office needs and reduces the need for frequent reordering.

Suitable for

• Mailing A5 documents, folded letters and brochures
• Everyday office correspondence and administrative mailings
• Manual addressing and many types of office printers
• Document storage and internal distribution within organizations

Key specifications

• Format: C5 (162 × 229 mm)
• Material weight: 90 g/m² white paper
• Interior: blue underprint for reduced translucency
• Pack quantity: 50 envelopes
• Compatible with manual addressing and many inkjet and laser printers (check device compatibility before use)

How to use

Insert the document or folded letter into the envelope so that the content fits the C5 dimensions without excessive bending. Seal according to the envelope's closure type and, if applying printer or handwritten addressing, ensure the chosen area is flat and free of creases. For machine processing, confirm that the printer or inserter settings match the envelope size and paper weight to avoid jams or misfeeds.

Usage recommendations

Store envelopes in a dry, cool place away from direct sunlight to preserve paper quality. When printing addresses or barcodes, perform a test run to verify print contrast on the white surface and to ensure the blue underprint does not affect readability. For sensitive documents, consider using additional protective measures such as inner sleeves or tamper-evident seals.