What are the differences between PU and PVC fabrics

Differences Between PU and PVC Fabrics

Polyurethane (PU) and Polyvinyl Chloride (PVC) are popular synthetic materials widely used in various industries, each with unique properties and applications. Understanding the differences between these two types of fabrics is essential for selecting the right material for your needs.

Composition and Production Processes

PU, often referred to as synthetic leather, has a lighter specific gravity compared to PVC. The production of PU involves coating PU pulp on textured release paper, which is then peeled off post-cooling, resulting in a paper-like texture on the PU layer. PU fabrics can be further processed through embossing and are produced using either wet or dry methods. Wet PU is primarily utilized in products such as bags, shoes, and sofas, while dry PU finds its use in packaging and clothes.

In contrast, the manufacturing of PVC involves melting plastic particles to create a paste, which is uniformly applied to a T/C knitted fabric and foamed in a controlled furnace. This process allows for various softness levels and surface treatments according to specific product requirements. PVC is traditionally a substitute for leather, known for its low cost, diverse colors, and various patterns, but it tends to become hard and brittle over time.

Comparative Analysis

The key differences between PU and PVC fabrics can be summarized as follows:

1. Texture and Softness: PU fabric is softer than PVC and boasts better quality and toughness, making it suitable for a wide range of applications.
2. Price: PU is generally more expensive than PVC due to its higher quality and closer resemblance to natural leather.
3. Tensile Strength: PU fabrics are more resilient, while PVC tends to tear more easily under force.
4. Base Fabric Quality: PVC fabrics typically have thinner fabric bases, with more options available for woven and knitted fabrics. Conversely, PU usually utilizes non-woven fabric bases.
5. Burn Characteristics: When burned, PU emits a less noticeable scent, while PVC releases a strong odor and turns black.
6. Material Proportion: PVC has a larger proportion in its formulation compared to PU.
7. Texture Depth: PVC has a more pronounced texture, with its foamed middle layer being more apparent.

PU synthetic leather is gaining popularity as a replacement for PVC due to its superior qualities while still being more affordable than genuine leather. Consumers are increasingly choosing PU for its versatility and aesthetic appeal.

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Explore more about Pu Coated Fiberglass Fabric, and don't hesitate to reach out for professional insights.

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