Printing process for forming leather surface foaming effect on spinning base material

The invention discloses a printing process for forming a leather surface foaming effect on a spinning base material. The printing process specifically comprises the following steps that (1) black TPUink is printed on the release face of a release PET film, and the release PET film is aired or dried for standby application; (2) elastic TPU transparent oil is printed on the black TPU ink face, andthe release PET film is aired or dried for standby application; (3) foaming pattern mucilage is printed on the elastic TPU transparent oil face, and the release PET film is aired or dried for standbyapplication; (4) hot melt glue is printed on the foaming mucilage face formed in the step (3), after being aired or dried for 10 min to 30 min, the release PET film is placed in a drying box of 120 DEG C-160 DEG C, and the release PET film is taken out to be cooled after being baked for 10 min to 20 min; (5) the hot melt glue face and the spinning base material are compounded through a pressing machine; and (6) a product ob