Alright, I have wanted to post this, and in fact it was prepared. But just couldn’t find the time to do it.
Since this is a Leather Thread, let's share some leather informations
So here it is some explanation and illustrations about Vegetable Tanned Leathers (Though I have some knowledge, that doesn’t mean I’m rocket scientist , please comments and feedback for more discussions)
Leathers
What is Leathers?
Leather is the result of the skin of an animal (cow, horse, pig, reptiles...) which will go through a process call Tanning at the Tannery.
Why do we need Tanning?
Tanning is a process which will make the leather last and not decompose easily.
How is the process of Tanning?
Various Tannins are require as agent for Tanning and he process of Tanning involves removing the hair to soaking in water for a long period of time. Video below shows of how the Tanning process from Herman Oak Tannery.
http://www.youtube.com/watch?v=XyCaonpEd70
After the above introduction of leather, we can touch on Vegetable Tanned Leather.
It is one of the many methods to Tan raw skin from the animal. Vegetable Tanning uses Tannin from natural plants, barks, woods, leaves, roots...etc, as Tanning agent. It is one of the oldest and most natural ways to Tan raw skin into leathers we have today.
Different Tannins used will give different colour tone to the leathers. For example: Bark Tannin give a bright colour whereas Chestnut Tannin gives the best colour.
With different kinds of Tanning method and different kinds of Tannins, we can get different results of leather, below is a picture of how to identify its tanning process from the leather we see every day.
After all the processes of Vegetable Tanning, what we get is the most natural type of leathers. When they are still skins on the animal, abrasions, cut, insect bites and even growth marks are developed throughout their lifetime. As such, with Vegetable Tanning as the most natural Tanning method, we will still be able to see these ‘hallmarks’ on the leathers.
I happened to download some descriptions of how some marks are form, see pics below.
Fig 1: Growth Marks and Veins – These are interesting indications of the age of the animal, just the grains of a timber.
Fig 2: Scars – Acquired by the animal due to cuts from other animals’ horns, barb wire of the farm or whatever your imagination runs.
Fig 3: Grain Variations – The differences between fibre texture of the animal’s body parts as like us, human. Belly potions usually looser than the backbone area.
Fig 4: Shades Variations – Due the varying grain structure of the animal, their skin can have different shades, again just like us.
All these marks are what make each Vegetable Tanned Leathers unique. No other same design of belts or wallets or other leathercrafts have the same grains and marks. Each and every one are the ‘Only One’ in the world.
Can visit my blog for more leather informations
http://www.obbigoodfrance.blogspot.com/
*Some pics, videos and informations are excerpts from other websites. I consolidated the informations from these random sites with my own explanations.