1.According to the tissue characteristics of crocodile skin, the first step is scaling and softening
Crocodile skin is long and narrow in shape, covered with thick and hard scales. The abdominal scales are mostly square, relatively flat, soft and white, while the dorsal part is mostly raised scales as big as broad beans, with a lot of pigment on the scales and choking bones inside the scales as support. The value of alligator back and abdomen leather is quite different, so the back and abdomen are often separated from the side of the body, and some special treatments are made according to different requirements.
According to the characteristics of crocodile skin, the first step to make it into a luxury handbag is to make it soft. Craftsmen will soak crocodile skin in water, alkali, lime, soften, salt and acid. After repeated treatment, the leather will swell and soften. When it has completely removed the hard scales, it will become clear and soft.
2. depigmentation
Crocodile skin has a lot of pigment in its grain area. If it is not removed, it will affect the dyeing effect and the quality of leather. There are many ways to remove the pigment, professionals will be summarized into two main methods: oxidation and reduction.
3. Tanning
Tanning process is a very important process in leather making process. The different tanning processes will determine the physical and chemical properties and uses of leather. On the contrary, the different varieties and uses also determine the different tanning processes. Tanning is to remove all the fat, moisture, salt and impurities of crocodile skin, make it easy to preserve, and make the leather expand moderately, make it soft and hard, and easy to shape. Some people even tried Botox or chrome on some crocodile leather, which can make it feel like leather
It's lighter, more flexible and waterproof, just like a woman's face.
4. Retanning, fatliquoring and dyeing
After removing the pigmented fat from crocodile skin, the skin becomes dry and dull. In order to make the thickness and color consistent, craftsmen have to open their fiber channels to make the color and wax penetrate evenly, so that the leather can be dyed deeply, feel firm and soft, and have natural luster. In this kind of link, in order to achieve different effects, the production process is not the same.
5. Finishing
The final step is called finishing or polishing. Crocodile skin is suitable for polishing because of its protruding grain surface and internal skeleton as support. After repeated polishing with chemical materials, the crocodile leather with two-color effect and strong three-dimensional sense appeared in front of us.
