pulpen

Pulpen is the Indonesian term for a writing instrument that dispenses ink through a small rolling ball at its tip, commonly called a ballpoint pen. It is designed for everyday writing with smooth ink flow and quick-drying properties, making it widely used in schools, offices, and daily life.

Mechanism and design: An ink reservoir feeds a metal ball at the tip; as it rolls, ink is deposited on the paper while ink from the reservoir is drawn back to the cartridge. Inks are typically oil-based or gel-based. Most pulpen are disposable, though many models use replaceable cartridges or refills. Barrel materials include plastic and metal, with retractable or cap designs to protect the tip.

History: The modern ballpoint pen was developed in the 1930s by László Bíró and colleagues, with mass production expanding after World War II. The design improved reliability and affordability, contributing to its global dominance as a general writing instrument.

Variants and use: Gel pens and rollerball pens are related variants offering different writing experiences; traditional fountain pens provide an alternative for particular nibs and inks. Pulpen are valued for low cost, portability, and ease of use, but ink behavior varies with paper and humidity. Good practice includes capping when not in use and choosing appropriate refills to reduce waste. Environmental concerns focus on plastic waste, prompting the availability of refillable or recyclable options.