Envelope Clairefontaine C6 56020C White 120 g/m², pack of 20

Envelope Clairefontaine C6 56020C White 120 g/m² is a pack of 20 white C6 envelopes (114 x 162 mm) made from 120 g/m² acid-free, pH-neutral paper. Designed by Clairefontaine for professional and personal correspondence, these envelopes offer a consistent, high-quality paper finish that is suitable for invitations, letters, cards and other documents sized to C6. The neutral white colour and smooth surface support printing, handwriting and affixing stamps or labels.

Advantages

These Clairefontaine C6 envelopes combine a heavier 120 g/m² paper weight with acid-free, pH-neutral composition to reduce yellowing over time and protect enclosed content. The smooth, even surface provides reliable results with ballpoint pens, fountain pens and most printers. Supplied in a pack of 20, they are convenient for occasional professional mailings, invitations or personal correspondence where a neat, white presentation is required.

Suitable for

• Mailing folded A5 documents or A4 documents folded twice to C6 size
• Sending invitations, greeting cards and announcements
• Postal correspondence for small businesses or home offices
• Handwritten letters and printed inserts that require a smooth, high-quality paper surface

When it may not be suitable

These envelopes are C6 size and therefore not suitable for larger documents that do not fold to 114 x 162 mm. They are relatively lightweight in quantity (pack of 20) and may not be suitable for high-volume mailing campaigns. Additionally, while the paper accepts most printers and pens, extremely heavy ink coverage or specialized printing processes may require test prints to confirm compatibility.

Key specifications

• Format: C6 (114 x 162 mm)
• Paper weight: 120 g/m²
• Colour: White
• Paper properties: acid-free, pH-neutral
• Quantity: 20 envelopes per pack

How to use

Fold documents to C6 size (for example, fold an A4 sheet twice) and insert them into the envelope. Seal the flap according to the envelope’s closure type and apply postage or address labels as needed. For printed addressing, test your printer settings and paper path with one envelope to confirm alignment and ink adhesion. Store unused envelopes flat in a dry environment to keep the paper surface and shape intact.

What to consider before purchase

• Ensure your documents fold to C6 (114 x 162 mm) before buying
• Consider the pack size (20 pieces) relative to your usage frequency
• Check compatibility with your printer if you plan to print directly on the envelope
• Confirm that white colour and 120 g/m² weight meet your presentation requirements

Usage recommendations

Store envelopes flat in a cool, dry place and handle with clean, dry hands to avoid smudges. For neat results when handwriting, use pens suited to smooth paper; for addressing with inkjet printers, run a single test to verify feed and drying time.