PVC leather (polyvinyl chloride leather) and PU shoe leather (polyurethane shoe upper leather) are two common synthetic leather materials that differ greatly in performance and appearance. The specific analysis is as follows:
I. Performance Differences
Wearability and durability
PVC leather
High abrasion resistance, high surface hardness, better scratch resistance than PU, suitable for high frequency use (such as daily shoe bags).
However, if it bends for long periods of time or at low temperatures (such as in winter shoe uppers), it is prone to brittleness, cracking or fracture.
PU Shoe Leather
Moderate abrasion resistance but excellent flexibility. It bends easily and is suitable for shoes (such as sneakers and loafers) that require regular exercise.
It has better anti-aging properties than PVC and is not easy to brown or harden after long-term use.
Breathe comfortably.
PVC leather
Poor air permeability and a sealed structure create a noticeable stuffy feeling, making it suitable for short-term use or with water resistance requirements (such as rain boots).
PU Shoe Leather
good breathability. Some products improve sweat-wicking performance through microporous structures or microfiber base fabrics, making them suitable for long-term wear (such as the lining of sneakers).
Temperature resistance and environmental adaptation
PVC leather
Poor heat resistance (softening deformation above 60°C) and low temperature resistance (cracking below -10°C).
PU Shoe Leather
It has a wider temperature resistance range (-20C to 80C), adapts to extreme climate conditions, is more UV resistance and does not fade easily.
Environmental and Safety
PVC leather
Plasticizers,such as phthalates, can be added to the process, sparking environmental disputes. Toxic gases,such as dioxins, are released when burned.
PU Shoe Leather
VOC emissions can be reduced and made more environmentally friendly through waterborne polyurethane technology. Combustion produces mainly carbon dioxide and water and is relatively less toxic.
II. Appearance differences
Texture and feel
PVC leather
It has a glossy finish, a hard, smooth feel and is similar in texture to plastic. It is suitable for imitating varnished leather (such as fashion shoes).
PU Shoe Leather
The texture is closer to natural leather, with matte, frosted or imitation sheepskin texture. Soft and springy to the touch.
Performance of colours and patterns
PVC leather
color saturation is high, suitable for bright or metallic paints, but the layering of patterns is relatively weak, mostly monochrome or simple printing.
PU Shoe Leather
Complex patterns (such as crocodile and snake patterns) can be achieved through transfer printing and embossing, with natural color transitions and a strong stereoscopic feel.
Thickness and flexibility
PVC leather
Thickness is generally relatively thin (0.2-1.0mm), but it lacks flexibility and bends easily into a dead angle.
PU Shoe Leather
It has a wide thickness range (0.5-2.0mm) and is flexible enough to bend easily and revert back to its original shape, making it ideal for stereo vamp design.
