korostuskynän

Korostuskynä, often referred to as a highlighter in English, is a writing instrument used to draw attention to portions of text by applying a vivid, translucent color. Unlike regular pens or markers, the ink in a korostuskynä is designed to be transparent, allowing the underlying text to remain perfectly readable. This transparency is crucial for its function, as it serves to mark important information without obscuring it.

The ink formulation typically uses fluorescent dyes that make the marked areas stand out, especially under bright light. This fluorescence contributes to the distinctive bright and often neon colors commonly associated with korostuskyniä, such as yellow, pink, green, and orange. The tip of a korostuskynä is usually broad and chisel-shaped, allowing for both thin lines to highlight single words and broader strokes to cover entire sentences or paragraphs.

Korostuskyniä are widely used by students for studying, professionals for reviewing documents, and readers for marking passages in books. Their primary purpose is to facilitate quick identification of key information, aiding in memorization and comprehension. The development of the korostuskynä has significantly impacted study habits and document annotation practices, offering a simple yet effective method for information prioritization.