The thermal transfer printing process involves using a ribbon that melts onto the label material, creating a high-quality image or text. This method ensures that the printed information is resistant to smudging, fading, and scratching, making thermal transfer labels ideal for environments where durability is paramount. The 100x150mm size is particularly advantageous as it offers ample space for detailed information, including barcodes, logos, and product descriptions, without taking up excessive space on packaging or products.