Metal heat transfer printing straw

The invention belongs to the field of straw production, and particularly relates to a metal heat transfer printing straw. For the problems that in the prior art, the aluminum pipe surface treatment sewage environmental protection problem is particularly serious, the surface effect is singular, the requirements on product personalization in the current society are difficult to adapt, and thereforethe requirement of replacing a disposable plastic straw with a metal straw is not facilitated, the following scheme is provided. The metal heat transfer printing straw comprises the following steps that S1, an aluminum pipe is polished by using a polishing device, and burrs at the end portion of the aluminum pipe are removed; S2, the polished aluminum pipe is cleaned by using clear water; S3, thecleaned aluminum pipe is put into a disinfection device and highly disinfected, the disinfection temperature is 140-160 DEG C, and the disinfection time is 10-20 min; and S4, heat transfer printing iscarried out on the disinfe