Bag printing refers to the process of customizing bags with designs, logos, or text using printing techniques such as screen printing, digital printing, or heat transfer printing. Bags can be made of various materials, including paper, plastic, cotton, canvas, and polyester.Customized bags are popular for businesses, events, and promotional purposes as they provide a cost-effective way to advertise or promote a brand. They can be given as giveaways or sold as merchandise.