A heat laminator is a device used to protect and enhance documents by encasing them in a layer of plastic. It works by applying heat and pressure to seal the plastic around the paper, making it more durable and resistant to wear, moisture, and dirt. This process is commonly used for preserving important documents, photos, and artwork. Heat laminators come in various sizes and styles, suitable for both home and office use. They typically require laminating pouches, which are available in different thicknesses. Popular brands include Fellowes and Scotch, known for their reliability and ease of use.