HISTORIA DE LA PIEL

Leather has been a very useful raw material since the beginnings of humanity . Thanks to her, man was able to survive the most extreme periods of weather.

During the Stone Age , the culture of leather work began. It was then that clothing products, stores and stands for religious representations began to be made. Later, by "accident" primitive man learns how to preserve it ; near the sea with curing by salting or curing by drying in the sun, and when the fire dominated the curing by smoking was worked.

In natural laboratories with the fermentation of tannins that destroy the keratin of the hair, the skin is transformed into leather . With the discovery of bronze and later of iron, other processes appear that give rise to an endless number of useful objects to work on the leather.

TYPES OF LEATHER


Bovine

Calf

Goat

Equine

Sheep

Pig

Otter

Chinchilla

Crocodile/Caiman

Reptiles

Fishes

TREATMENTS


Treatment: Rawhide
Type of treatment: Dried with salt
Characteristics: Rigid Texture
Uses: Drums


Treatment: Tanned with brains
Type of treatment: With animal brain fat
Characteristics:Very soft and flexible (suede). Multiple textures
Uses: Saddlery and pre-tanning


Treatment: Aluminum tanning
Type of treatment: Se curte con aluminio
Characteristics: Rigid texture
Uses: Parchments


Treatment: Vegetable tanning
Type of treatment: With tannins and vegetable ingredients. It oxidizes with air and light, turns brown and darkens.
Characteristics: It is not stable in tone or consistency if it gets wet or changes in temperature. Textures: multiple.
Uses: Saddlery and pre-tanning


Treatment: Chrome tanned
Type of treatment:It was invented in 1858, it is the most used. With salts and chromium acid.
Characteristics: Texture: soft, flexible and waterproof
Uses: Multiple

POST-TANNING TREATMENT

Treatment: Boiled leather
Characteristics: It submerges and the collagen fibers shorten. It is introduced in water if it is rigid. It is introduced into wax or boiling fat, it is more flexible.
Uses: Bookbinding, furniture and sculpture


Treatment: Dyed leather
Characteristics:Dyes such as aniline, translucent colors, acrylic dyes, uniform colors. Covered with one or more layers of polyurethane varnish.
Uses: Bookbinding, furniture and sculpture

Treatment: Oiled leather
Characteristics: Replenish the natural oils. Gives durability.
Uses: Bookbinding, furniture and sculpture


Treatment: Patent Leather
Characteristics: It waterproofs the leather and makes it more resistant. Resistance: light, scratches, repellent.
Uses: Bookbinding, furniture and sculpture