The invention provides a manufacturing method for
chromium-free
aldehyde-free tanned pigskin shoe lining leather. The method comprises the following steps: placing bare pigskin in a rotary drum and then adding industrial salt,
sodium bicarbonate, peregal and disodium ethylenediaminetetraacetate; then adding a
zirconium tanning agent,
sodium bicarbonate and an aluminum tanning agent into the rotary drum, heating an obtained mixture to a temperature of 40 DEG C, allowing the rotary drum to rotate for 180 min, stopping the rotary drum and standing the rotary drum overnight; in the next day, taking the pigskin out from the rotary drum, carrying out washing, adding the washed pigskin into the rotary drum, then adding water,
neutralization tannin and
sodium bicarbonate into the rotary drum again and draining off water; adding water, Tara
powder, a penetrating agent, sulfited
fish oil, sulfited rape oil and
formic acid into the drained rotary drum, taking the pigskin out from the rotary drum and stacking and standing the pigskin; and carrying out toggling, milling, toggling, trimming, ironing, grading and measuring according to a conventional process so as to obtain the
chromium-free
aldehyde-free tanned pigskin shoe lining leather. According to the invention, through addition of disodium ethylenediaminetetraacetate as a
masking agent, a pH value is reasonably adjusted, process balance that the surface of the
zirconium tanning agent is not excessively tanned and the aluminum tanning agent is not easily eluted is achieved, and manufacturing of the
chromium-free
aldehyde-free tanned pigskin shoe lining leather is made possible.