According to customer needs, the two processes of printing and stamping are used to make the raw materials beautiful in plane and three-dimensional, so that the products produced are exquisite and beautiful. According to the specifications of the eco-friendly bag to be produced, a non-woven fabric roll with a suitable width is used, and the rectangular fabric is folded into the bottom surface and four sides of the bag body through mechanical transmission, and at the fold line between the four sides and each side line Ultrasonic welding is used for the joint between. Then carry out mechanized punching, punching, and recycling of waste materials. If cO needs to produce environmentally friendly bags with straps, use an ultrasonic welding machine to transfer the already-formed bag body, mechanize and ultrasonic welding handles, realize double-lifting belts and one-time welding forming, greatly speeding up work efficiency. After the completion of the project, a production line with an annual output of 66 million environmentally friendly bags will be formed, realizing the above-mentioned fully automated assembly line for bag making and welding handle processes. In the project transformation, in order to manufacture bag materials for multiple purposes, ultrasonic multilayer composite technology was used, and the output reached 8000 m/day. The materials such as non-woven fabrics, spray-bonded cotton, and aluminum-plated film are stacked according to the demand, and transported by mechanization. The three materials are bonded through ultrasonic heat sealing technology to realize the production of thermal insulation bag body materials. The material can be used to make environmental protection ice bags and thermal insulation bags. The ultrasonic compound machine, bag making machine, and handle welding machine in the production equipment all adopt the advanced processing technology of non-woven production.