When it comes to sewing TPU laminated fabric, selecting the right type of thread is crucial for ensuring the durability, appearance, and functionality of the final product. As a TPU Laminated Fabric supplier, I understand the importance of this decision and the impact it can have on the overall quality of your projects. In this blog, I will delve into the factors to consider when choosing a thread for TPU laminated fabric and recommend the most suitable types.
Understanding TPU Laminated Fabric
Before discussing the appropriate threads, it's essential to understand what TPU laminated fabric is. TPU, or thermoplastic polyurethane, is a versatile polymer known for its excellent elasticity, abrasion resistance, and waterproof properties. When laminated onto a fabric base, it creates a composite material that combines the strength of the fabric with the unique benefits of TPU. This makes TPU laminated fabric ideal for a wide range of applications, including outdoor clothing, sports equipment, bags, and footwear.
You can learn more about our TPU Laminated Waterproof Fabric and TPU Film Lamination processes on our website. Our TPU Laminated Fabric is available in various thicknesses, colors, and finishes to meet your specific requirements.
Factors to Consider When Choosing Thread for TPU Laminated Fabric
Strength and Durability
TPU laminated fabric is often used in applications that require high strength and durability. Therefore, the thread you choose should be strong enough to withstand the stress and strain of the sewing process and the subsequent use of the finished product. Look for threads with high tensile strength and abrasion resistance to ensure that the seams do not break or fray easily.
Compatibility with TPU
The thread should be compatible with the TPU layer of the fabric. Some threads may react with the TPU, causing discoloration, degradation, or adhesion issues. It's important to choose a thread that is specifically designed for use with TPU or other synthetic materials.
Elasticity
Since TPU laminated fabric has some degree of elasticity, the thread should also have sufficient stretch to accommodate the movement of the fabric without breaking. Elastic threads can help prevent the seams from popping or puckering, especially in areas where the fabric is stretched or bent.
Colorfastness
If the appearance of the finished product is important, choose a thread that is colorfast and matches the color of the fabric. This will ensure that the seams blend in seamlessly with the fabric and do not fade or bleed over time.
Sewing Machine Compatibility
Consider the type of sewing machine you will be using and the thread size that it can handle. Different sewing machines have different requirements for thread thickness and tension, so make sure to choose a thread that is compatible with your machine.


Suitable Types of Thread for TPU Laminated Fabric
Polyester Thread
Polyester thread is a popular choice for sewing TPU laminated fabric due to its high strength, durability, and resistance to abrasion and UV rays. It is also relatively inexpensive and widely available in a variety of colors. Polyester thread has good elasticity, which allows it to stretch with the fabric without breaking. It is compatible with most sewing machines and can be used for both straight and zigzag stitches.
Nylon Thread
Nylon thread is another strong and durable option for sewing TPU laminated fabric. It has excellent tensile strength and abrasion resistance, making it suitable for heavy-duty applications. Nylon thread is also more elastic than polyester thread, which makes it a good choice for seams that need to stretch. However, nylon thread is more expensive than polyester thread and may be more prone to melting at high temperatures.
Corespun Thread
Corespun thread consists of a polyester or nylon core wrapped with a layer of cotton or other fiber. This combination provides the strength and durability of the core material with the softness and absorbency of the outer layer. Corespun thread is often used for sewing TPU laminated fabric because it is strong, flexible, and has good stitch formation. It is also less likely to cause damage to the TPU layer of the fabric.
Elastic Thread
Elastic thread is specifically designed to stretch and recover, making it ideal for sewing TPU laminated fabric that requires a high degree of elasticity. It is commonly used for seams in areas such as waistbands, cuffs, and hems. Elastic thread can be made from a variety of materials, including polyester, nylon, and spandex. When using elastic thread, make sure to adjust the tension on your sewing machine to prevent the thread from breaking or bunching up.
Tips for Sewing TPU Laminated Fabric
Use the Right Needle
Choose a needle that is appropriate for the thickness of the TPU laminated fabric. A sharp needle with a fine point is recommended to prevent the TPU layer from snagging or tearing. For thicker fabrics, use a larger needle size.
Adjust the Tension
Proper tension is essential for achieving smooth and even stitches when sewing TPU laminated fabric. Adjust the tension on your sewing machine according to the type of thread and fabric you are using. Test the tension on a scrap piece of fabric before starting your project.
Use a Walking Foot
A walking foot is a special sewing machine foot that helps to feed the fabric evenly through the machine. This is especially useful when sewing TPU laminated fabric, which can be slippery and difficult to handle. A walking foot can prevent the fabric from shifting or bunching up, resulting in more accurate and professional-looking seams.
Avoid Overheating
TPU laminated fabric can be sensitive to heat, so it's important to avoid overheating the fabric during the sewing process. Use a lower sewing speed and avoid pressing the foot down too hard on the fabric. If the fabric starts to melt or stick to the needle, stop sewing and allow the fabric to cool down.
Conclusion
Choosing the right type of thread for sewing TPU laminated fabric is essential for achieving a high-quality and durable finished product. By considering factors such as strength, compatibility, elasticity, colorfastness, and sewing machine compatibility, you can select the thread that best suits your needs. Polyester, nylon, corespun, and elastic threads are all suitable options for sewing TPU laminated fabric, each with its own unique properties and advantages.
If you have any questions or need further assistance in choosing the right thread for your TPU laminated fabric project, please don't hesitate to contact us. We are a leading TPU Laminated Fabric supplier and are committed to providing our customers with the highest quality products and services. We look forward to working with you to meet your specific requirements and help you achieve your sewing goals.
References
- Textile Institute. (n.d.). Sewing Threads: Properties and Performance.
- ASTM International. (n.d.). Standard Test Methods for Sewing Thread.
- Sewing Machine Manufacturers Association. (n.d.). Sewing Machine Needles and Threads.

