How to adjust the hardness of TPU Leather Base Fabric?

Dec 17, 2025

Hey there! As a supplier of TPU Leather Base Fabric, I often get asked how to adjust the hardness of this amazing material. TPU leather base fabric is widely used in various industries, from automotive to fashion, and getting the right hardness is crucial for its performance and appearance. In this blog post, I'll share some tips and tricks on how to adjust the hardness of TPU leather base fabric, based on my experience in the industry.

Understanding TPU Leather Base Fabric

Before we dive into adjusting the hardness, let's quickly go over what TPU leather base fabric is. TPU, or thermoplastic polyurethane, is a type of plastic that is known for its flexibility, durability, and resistance to abrasion. TPU leather base fabric is made by coating a base fabric, such as polyester or nylon, with a layer of TPU. This creates a synthetic leather material that looks and feels like real leather, but is more affordable and easier to maintain.

There are several types of TPU leather base fabric available, each with its own unique properties and applications. For example, TPU Leather Substrate Fabric is a general-purpose fabric that can be used in a wide range of applications, while TPU Leather Substrate T/C Fabric is a blend of polyester and cotton that offers a softer feel and better breathability. Car Upholstery TPU Leather Substrate is specifically designed for use in automotive interiors and is engineered to withstand the rigors of daily use.

Factors Affecting the Hardness of TPU Leather Base Fabric

The hardness of TPU leather base fabric is determined by several factors, including the type of TPU used, the thickness of the TPU layer, the type of base fabric, and the manufacturing process. Here's a breakdown of each factor:

TPU Leather Substrate TC Fabric-2TPU Leather Substrate TC Fabric-1

  • Type of TPU: Different types of TPU have different hardness levels. For example, a harder TPU will result in a stiffer and more rigid fabric, while a softer TPU will result in a more flexible and supple fabric.
  • Thickness of the TPU layer: The thicker the TPU layer, the harder the fabric will be. This is because a thicker layer of TPU provides more support and structure to the fabric.
  • Type of base fabric: The type of base fabric used can also affect the hardness of the TPU leather base fabric. For example, a heavier and more tightly woven base fabric will result in a stiffer and more rigid fabric, while a lighter and more loosely woven base fabric will result in a more flexible and supple fabric.
  • Manufacturing process: The manufacturing process can also have an impact on the hardness of the TPU leather base fabric. For example, if the fabric is heat-set or embossed, it will become stiffer and more rigid.

How to Adjust the Hardness of TPU Leather Base Fabric

Now that we understand the factors that affect the hardness of TPU leather base fabric, let's look at some ways to adjust it. Here are some tips and tricks:

  • Choose the right type of TPU: As mentioned earlier, different types of TPU have different hardness levels. If you need a harder fabric, choose a TPU with a higher hardness rating. If you need a softer fabric, choose a TPU with a lower hardness rating.
  • Adjust the thickness of the TPU layer: The thickness of the TPU layer can be adjusted during the manufacturing process. If you need a harder fabric, increase the thickness of the TPU layer. If you need a softer fabric, decrease the thickness of the TPU layer.
  • Choose the right type of base fabric: The type of base fabric used can also affect the hardness of the TPU leather base fabric. If you need a harder fabric, choose a heavier and more tightly woven base fabric. If you need a softer fabric, choose a lighter and more loosely woven base fabric.
  • Adjust the manufacturing process: The manufacturing process can also have an impact on the hardness of the TPU leather base fabric. If you need a harder fabric, heat-set or emboss the fabric. If you need a softer fabric, avoid heat-setting or embossing the fabric.

Testing the Hardness of TPU Leather Base Fabric

Once you've adjusted the hardness of the TPU leather base fabric, it's important to test it to make sure it meets your requirements. There are several ways to test the hardness of TPU leather base fabric, including:

  • Shore hardness test: This is the most common method for testing the hardness of TPU leather base fabric. The Shore hardness test measures the resistance of the fabric to indentation using a durometer. The higher the Shore hardness rating, the harder the fabric.
  • Tensile strength test: This test measures the strength of the fabric when it is pulled in opposite directions. A harder fabric will generally have a higher tensile strength than a softer fabric.
  • Flexibility test: This test measures the ability of the fabric to bend and flex without cracking or tearing. A softer fabric will generally be more flexible than a harder fabric.

Conclusion

Adjusting the hardness of TPU leather base fabric is a crucial step in ensuring its performance and appearance. By understanding the factors that affect the hardness of the fabric and using the tips and tricks outlined in this blog post, you can easily adjust the hardness of TPU leather base fabric to meet your specific requirements.

If you're interested in purchasing TPU leather base fabric or have any questions about adjusting its hardness, please don't hesitate to contact us. We're a leading supplier of TPU leather base fabric and have years of experience in the industry. We'd be happy to help you find the right fabric for your needs and provide you with any technical support you may need.

References

  • "Thermoplastic Polyurethane (TPU) - Properties, Applications, and Processing." Plastics Technology.
  • "Synthetic Leather: A Review of the Materials, Manufacturing Processes, and Applications." Journal of Materials Science and Technology.
  • "Testing Methods for Synthetic Leather." ASTM International.