What is crust Leather
Crust leather is a leather article which is dried after tanning but not been dyed. When it comes to chrome-tanned leather, it is known as “chrome crust” and, for vegetable-tanned leather, as “vegetable crust”. Crust leather is rarely processed. Generally, the leather is dyed and finished before processing.
Crusting is the most important part of crust leather production. The main stages of the crust leather production process are called, preparatory stages, tanning, crusting and surface coating.
The crusting process starts the time when the hide is thinned, re-tanned and regreased. Often a dye method is included in the crusting. Also, part of the crusting process includes drying and softening.
How Crust Leather Is processed
Crusting may include the following process depending on the type of leather: Below is the detailed process of making crusting.
Splitting is a process where thicker leather is sliced into two layers. The layer without a grain surface can be turned into suede. It also has an artificial grain surface applied. A splitting machine slices the leather according to the thickness you set on it.
The pH of the leather is included.
Additional tanning imparts properties.
The dyeing of leather into a wide variety of colors plays an important part in meeting fashion requirements. Some leathers are the only surface dyed, while others need completely penetrated dyeings, in related with suede leathers.
Unbound chemicals are chemically bonded or removed from the leather.
Fatliquoring and Stuffing:
Fats, oils, and waxes are added between the fibers to soften the leather. Without these oils, the leather will become hard and inflexible as it dries out.
A machine cuts leather fibers from the flesh side. A uniform thickness is achieved by shaving the leather on the non-grain side using a machine with a helical blade mounted on a rotating cylinder.
Wetting and Conditioning:
Leather has to be rehydrated in the following steps.
Samming: Water is squeezed out the leather.
Drying: The leather is dried to different moisture levels.
Filling: Some dense chemicals are added to make the leather heavier and harder.
Stripping: Superficially fixed tannins are removed from leather by stripping.
Softening: The leather is softened by the tumbling action inside a rotating drum. Physical softening of the leather by tumbling and stacking.
Buffing: Abrasion of the surfaces of the leather to reduce grain defects or naps.
We have one of the highest range of crust leather production capacity in Bangladesh.
To tan leather, we are promised to use quality and healthy chemicals of branded companies such as ALPA, STAHL, BASF, and BUYERS’.
Our Crust Leather Production range is as below:
Cow Crust Leather:
1. Full Chrome cow crust
2. Semi-chrome cow crust
3. Full vegetable cow crust
4. Semi vegetable cow crust
5. Lining cow crust
6. Ecological Cow Crust (Chrome free)
WE HAVE FULL RANGE OF COW CRUST LEATHER PRODUCTION
1. Full Chrome cow crust leather
2. Semi-chrome cow crust leather
3. Full vegetable cow crust leather
4. Semi vegetable cow crust leather
5. Lining cow crust leather
6. Ecological Cow Crust Leather / Chrome Free Cow Crust Leather