Füllern

Füllern are writing instruments that use a contained reservoir of liquid ink and a nib to draw ink onto paper. They are designed for handwriting with an emphasis on smoothness, line variation, and the ability to use a wide range of inks. Compared with ballpoint or gel pens, Füllern rely on a flowing ink system and a nib that delivers ink through capillary action and pressure. They are commonly used for correspondence, journaling, and calligraphy.

The essential components of a Füller include the nib, the feed, and the ink reservoir. The nib, usually made of steel or a precious metal such as gold, determines line width and feel. The feed behind the nib controls ink flow, preventing flooding and skip. The ink reservoir can be a cartridge, a converter, or a built-in filling mechanism such as a piston, lever, or, in older models, an eyedropper. Modern pens often use a cartridge-converter system, allowing interchangeable ink cartridges or refillable converters, while high-end or vintage models may employ piston or lever-fill mechanisms.

Ink and maintenance are important considerations. Nib performance depends on ink viscosity, nib material, and paper quality. Füllern require periodic cleaning to prevent clogging and to extend their life. Ink changes should be done with care to avoid leaks, and pens should be flushed with water when switching colors or storing for extended periods. Proper storage typically involves keeping the pen capped and upright or horizontal, depending on design.

Today Füllern are popular among enthusiasts for their durability, customization options, and the tactile experience of writing. They are used for everyday writing, professional correspondence, and artistic calligraphy, with a wide ecosystem of brands, nib sizes, and ink choices available.