▎ 摘　　要

NOVELTY - Fashionable and environmentally friendly cloth bag comprises 50-60 pts. wt. modified polyurethane emulsion, 5-8 pts. wt. antibacterial materials, 5-8 pts. wt. corrosion-resistant materials, and 2-4 pts. wt. coupling agent; among them: antibacterial materials are chitosan and tea polyphenol composite material. The preparation method of the fashionable and environment-friendly cloth bag includes (i) preparing modified polyurethane emulsion, antibacterial material and corrosion resistant material in sequence; (ii) adding the prepared modified polyurethane emulsion, antibacterial material and corrosion-resistant material into the internal mixer to mix, then adding the coupling agent, stirring and kneading for 40-60 minutes, then adding carbon dioxide and increasing the pressure, and heat preserving for 2-4 hours, returning to normal pressure, and heating to 260-300 degrees C, and then spinning to obtain bag fiber. USE - Used as fashionable and environmentally friendly cloth bag. DETAILED DESCRIPTION - Fashionable and environmentally friendly cloth bag comprises 50-60 pts. wt. modified polyurethane emulsion, 5-8 pts. wt. antibacterial materials, 5-8 pts. wt. corrosion-resistant materials, and 2-4 pts. wt. coupling agent; among them: antibacterial materials are chitosan and tea polyphenol composite material. The preparation method of the fashionable and environment-friendly cloth bag includes (i) preparing modified polyurethane emulsion, antibacterial material and corrosion resistant material in sequence; (ii) adding the prepared modified polyurethane emulsion, antibacterial material and corrosion-resistant material into the internal mixer to mix, then adding the coupling agent, stirring and kneading for 40-60 minutes, then adding carbon dioxide and increasing the pressure, and heat preserving for 2-4 hours, returning to normal pressure, and heating to 260-300 degrees C, and then spinning to obtain bag fiber; controlling the mass ratio of modified polyurethane, antibacterial material, corrosion-resistant material, and coupling agent to 50-60:5-8:5-8:2-4; (iii) after opening, carding, and combing, air-flow conveying and air-laid, forming, finishing and setting, and winding to form non-woven fabrics for machined products; and (iv) feeding the upper and lower non-woven fabrics into the bag making machine, which is equipped with a pre-heating device to preheat the sides of the two non-woven fabrics. The pre-heating device is followed by an ultrasonic sealing device. Ultrasonic sealing device seals the side edges, and then preheats and ultrasonic seals the bottom side of the two non-woven fabrics; the tail of the bag making machine is equipped with a cutting device to standardize the non-woven bags sealed by the ultrasonic sealing device, and cut into finished fashionable and environmentally friendly cloth bags, and stack them neatly.