Natural grain leather

A leather finishing method, comprising:

• applying to tanned hides a base coat containing at least a polyurethane salt and an acrylic salt in an aqueous composition;
• loading the tanned hides into drums containing water, wherein said water is between 150 to 300% water by weight, said water between 30 to 55 degrees C.;
• adding at least one acid fixation agent to the warm water, said acid fixation agent including but not limited to about 0.1 to 2.0% by weight of an acid;
• immersing the tanned hides into the water;
• tumbling the tanned hides in the water for about one hour;
• gently squeeze-drying the tanned hides;
• toggling the tanned hides;
• milling the tanned hides for about 8 hours;
• staking the tanned hides;
• spraying the tanned hides with at least one top coat;
• remilling the tanned hides;
• and
• softening the tanned hides.

A leather finishing method, comprising:

• applying to tanned hides a base coat containing at least a polyurethane salt and an acrylic salt in an aqueous composition, wherein about 60% of the aqueous composition by weight is comprised of about 20% acrylic by weight and about 2% polyurethane by weight, about 0.4% isopropanol by weight, about 10% silica duller by weight, about 22% silica drier by weight, and between 2 to 3% pigment by weight;
• loading the tanned hides into drums containing warm water, wherein said warm water is between 150 to 300% by weight 45 degrees C.;
• adding at least 0.1 to 2% of an acid fixation agent to the warm water, said acid fixation agent selected from the group consisting of formic acid, acetic acid, propionic acid and hydrochloric acid;
• immersing the tanned hides into the warm water;
• tumbling the tanned hides in the warm water for about one hour;
• gently squeeze-drying the tanned hides;
• toggling the tanned hides;
• milling the tanned hides for about 8 hours;
• staking the tanned hides using a specialized machine in which plates are equipped with a plurality of engaging protrusions which push and pull at the tanned hide surface whereby the tanned hide surface is stretched without being perforated;
• spraying the tanned hides with at least one top coat;
• remilling the tanned hides;
• and
• softening the tanned hides.