Lychee PU
On the Internet, mobile phone cases, wallets and other items are offered with the material name "Lychee PU Leather". It is not exactly specified what this is.
"Lychee" stands for the lychee fruit. In this context, it is probably the rough shell of the fruit. The grain of the material should be reminiscent of the fruit surface. It is probably an embossing.
Lychee-PU has a surface like the lychee fruit.
"PU" is presumed to be polyurethanes. A plastic, which is often used in the coating of leather, but also in artificial leather. There is also the so-called PU leather. It is therefore to be assumed that the surface coating consists of polyurethanes.
The appended word "leather" indicates the tanned skin of animals. But whether this material description is really leather in the sense of the definition is not clear. There are no known studies on this. The bad experiences in the examination of leather belts and mobile phone cases warns to not always rely on the declaration in the online trade.
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