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On this page, we will introduce the process by which BROSKI AND SUPPLY's waterproof genuine leather is made.
If you'd like, please read to the end.

 

BROSKI AND SUPPLY's waterproof genuine leather is manufactured at the largest processing factory in Bangladesh, which has been in business for over 40 years.
The factory also exports to Europe and other parts of Asia.

1. Salt the rawhide

Rawhide is hide that has not been processed in any way.

The hides arrive at the factory in raw form. They are salted immediately, as they will spoil within 3-4 hours. The hides are salted and washed repeatedly to thoroughly remove any hair, meat, or oil from the hide.

The rawhide then changes color and turns "wet blue."
Chrome tanning is characterized by its white color with a slight bluish tinge.
Here, the rawhide is called rawhide since it has been processed.

2. Tanning and dyeing

Tanning is the process of binding tanning agents to the collagen fibers of the hide to transform it into a heat-resistant, durable material. In chrome tanning , a chemical called basic chromium sulfate is used. The tanning agent, water, and hide are placed in a large drum and rotated.

At this time, waterproofing chemicals are also added, so they penetrate deep into the leather and create waterproof fabric. The drum is rotated for 72 hours to thoroughly penetrate the material.

The large drum holds up to 330 hides.

Leather can only be used for bags after going through a "tanning" process.

The dye is also mixed in.
The degree to which the color penetrates varies slightly from one leather to another, so delicate adjustments such as time and amount of dye are necessary.

3. Shaving

This is the process of shaving the flesh side of the leather with a rotating roll blade to adjust the thickness. Since the thickness varies depending on the hide, this is done to make it uniform. The thickness is adjusted to 1.2~1.6mm.

4. Dehydration/drying

Dehydrate and let dry naturally for a week.

5. Stretch

To prevent the leather from shrinking, it is attached to a net using weights and laid flat to dry. This also aims to stretch the leather, remove wrinkles, and set the shape.

6. Pressure

Apply pressure from above to make it even neater.

7. Coating

The final processing operation.
The surface is treated with paint, adding color and polish.

8. Inspection

Inspection before sending to the sewing factory. Visually check for scratches and stains.

Leather is graded "ABCDF," and BROSKI only uses the best grade A and the second best grade B. Grade A leather is made from precious leather that only accounts for 10% of the total.
Only carefully selected A and B grade fabrics are sent to the sewing factory.

Thank you for reading this far.

What was the process like to make waterproof genuine leather?

Please come and see BROSKI products made by skilled craftsmen!

BROSKI AND SUPPLY