Box of 500 white envelopes in size 162 x 229 mm (C5) with a window of 45 x 100 mm on the right side (20 mm from the right and 62 mm from the bottom). The envelopes feature a gummed flap and are suitable for machine processing. The paper weight is 80 g/m².

The paper used for the production of the envelopes has a high whiteness of 171 CIE and a good grip for easier handling. Its surface is optimized for good color reproduction.

The envelopes have good flatness, which is essential for handling stacks. The inside print of the envelope is gray, using water-based ink to ensure the confidentiality of letters. The window is made of 35-gram transparent paper, providing 85% transparency.

The Clairalfa envelopes have a reinforced closure and are delivered in practical, foldable boxes that can be reused by the printer.

The envelopes are made from FSC-certified paper.

Thickness: 120 µm
Volume: 1.36 cm³/g
Bendtsen roughness: 120 ml/min
Opacity: 94%.