Distinguishing between PU (polyurethane) and genuine leather can sometimes be challenging because both materials can look similar, especially in their finished forms. Here are several ways to differentiate between them:
1. Texture and Feel:
- PU Leather: Typically feels smoother and has a more consistent texture. It may feel synthetic and less soft compared to genuine leather.
- Genuine Leather: Has a more natural texture and often feels softer and more supple. It may have variations in texture and grain pattern, which are characteristic of real animal hide.
2. Grain Pattern:
- PU Leather: Usually has a consistent, repeating grain pattern because it is manufactured. The pattern may appear artificial and uniform.
- Genuine Leather: Shows a unique grain pattern that varies across the surface. It may have imperfections such as wrinkles, scars, or pores, which are natural features of real leather.
3. Smell:
- PU Leather: Often lacks a distinct leather smell. Instead, it may have a chemical or plastic-like odor, especially if it is new.
- Genuine Leather: Typically has a natural, leathery smell. This smell can vary depending on the type of leather and any treatments it has undergone.
4. Edges and Backside:
- PU Leather: The edges may look more uniform and may show a fabric or plastic base layer underneath.
- Genuine Leather: Edges are rougher and may show layers of fibers or suede-like material on the underside.
5. Water Absorption:
- PU Leather: Generally does not absorb water; instead, it may bead up on the surface or simply roll off.
- Genuine Leather: Absorbs water to some extent, although the exact absorption rate can vary based on the type of leather and any treatments applied to it.
6. Burn Test:
- PU Leather: When burned, PU leather typically melts and may produce a chemical smell. The residue left behind is often a hard, crumbly ash.
- Genuine Leather: When burned, genuine leather burns and smells like burnt hair or protein. The residue is typically a soft, powdery ash.
When trying to identify whether an item is made of PU leather or genuine leather, using a combination of these methods can help you make a more accurate determination. Keep in mind that some manufacturers may blend the two materials or use terms like "vegan leather" which can further complicate identification.
