The Taiwan Textile Research Institute developed water-repellent, antifouling, and antibacterial three-in-one functional ink. Through the integration of a digital inkjet system and functional spraying design, it endows fabrics with one-sided or partial functionality, which establishes a digital low-carbon functional inkjet technology. Multifunctional light windbreakers developed using this technology have water repellent, antifouling, and antibacterial properties, and the fabric used to make such windbreakers is quick-drying and breathable, comfortable to wear, and lightweight.