Suction tube made of degradable PLA bamboo fiber material

The invention provides a degradable PLA (polylactic acid) bamboo fiber material straw which comprises a lining layer, a middle layer and a surface layer, the lining layer, the middle layer and the surface layer are adhered to one another by coating a food-grade water-based adhesive, the lining layer is a bamboo fiber layer, the middle layer is a PLA material layer, and the surface layer is a food-grade paper material layer; the inner side wall of the lining layer and the outer side wall of the surface layer are coated with waterproof barrier coatings. Through the three-layer design of the inner layer, the middle layer and the surface layer, the inner layer and the surface layer wrap the inner layer and the outer layer of the middle layer, the double-layer wrapping design realizes protection of the PLA middle layer, the middle layer does not breed harmful microorganisms, food safety is guaranteed, and through the waterproof barrier coating, the waterproof performance of the straw can be improved; when the stra