Color-coded threading is a system that simplifies threading a sewing machine. Each path for a specific thread is marked on the machine body with its own color and often with numbers. The user simply follows the colored markings, such as dots or lines, and guides the thread through all the correct points in the given order. This visual guide helps prevent threading errors and speeds up the entire process. The feature is common especially in overlock and coverlock machines, where multiple threads need to be threaded simultaneously and their paths can cross.
