Tansering

Tansering is a technique used in the production of leather, particularly in the tanning process. It involves the use of a solution of tannic acid to treat the hides or skins of animals, which helps to preserve the material and improve its durability. The term "tansering" is often used interchangeably with "tanning," but it specifically refers to the initial stage of the tanning process where the tannic acid is applied to the raw hide or skin.

The tanning process begins with the preparation of the raw hide or skin, which is then soaked in a solution of tannic acid. This solution helps to denature the proteins in the hide, making it more resistant to decay and microbial growth. The tannic acid reacts with the collagen and other proteins in the hide, forming a complex that binds the fibers together, resulting in a more durable and flexible material.

After the tansering process, the hide or skin is further treated with other chemicals and agents to enhance its properties. This may include the use of chrome salts, which improve the hide's resistance to water and abrasion, and the application of vegetable tannins, which can impart a more natural and earthy tone to the leather.

Tansering is a crucial step in the leather-making process, as it sets the foundation for the final properties of the leather. The quality of the tannic acid used and the conditions under which the tansering is carried out can significantly impact the durability, flexibility, and aesthetic qualities of the resulting leather.