What is "Heat setting" - Definition & Explanation
Last Updated on: 08-Jan-2023 (8 months, 27 days ago)
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Heat setting

Heat setting is a critical process in the textile industry that involves the application of heat to stabilize and improve the dimensional stability of fabrics. It is a method used to lock in the shape and structure of textile materials, preventing them from shrinking or distorting during subsequent use or laundering.

In the heat setting process, fabrics are subjected to controlled heat and pressure to induce a series of physical and chemical changes. The application of heat causes the fabric's fibers to relax, realign, and become permanently set in their desired configuration. This process helps to stabilize the fabric, reduce shrinkage, enhance resilience, and improve overall performance.

Types of Heat Setting

There are various methods of heat setting, depending on the fabric type, fiber composition, and desired outcome. The common types of heat setting include:

  1. Steam Heat Setting: In this method, fabrics are exposed to steam at a controlled temperature and pressure. The steam relaxes the fibers and allows them to restructure, resulting in improved dimensional stability.
  2. Hot Air Heat Setting: Fabrics are subjected to hot air in a controlled environment. The hot air causes the fibers to relax and set, resulting in enhanced stability and reduced shrinkage.
  3. Calender Heat Setting: This method involves passing the fabric between heated rollers under controlled pressure and temperature. The pressure and heat cause the fabric to undergo physical changes, resulting in improved dimensional stability and reduced shrinkage.
  4. Infrared Heat Setting: Infrared heat is used to heat fabrics evenly, allowing the fibers to relax and set. This method is often used for delicate or heat-sensitive fabrics.

Tips for Handling Heat-Set Fabrics

When working with heat-set fabrics, it is essential to follow specific guidelines to maintain their properties and integrity:

  • Temperature and Time: Adhere to the recommended temperature and time specifications during heat setting to achieve the desired fabric stability without causing damage or degradation.
  • Testing: Conduct preliminary testing on a small sample of the fabric before heat setting the entire batch to ensure that the desired results are achieved and that the fabric can withstand the process without adverse effects.
  • Care Labels: Pay attention to the care labels provided by the fabric manufacturer, as they may contain specific instructions for heat setting or subsequent care.
  • Proper Equipment and Settings: Use appropriate heat setting equipment and ensure that the machinery is properly calibrated to achieve the desired temperature and pressure levels.
  • Monitoring and Quality Control: Regularly monitor the heat setting process and perform quality control checks to ensure that the fabrics meet the desired standards and specifications.

Top International Users and Manufacturers

Several international brands and manufacturers extensively utilize heat setting in the textile industry. Here are some of the top users and manufacturers:

  1. Shimano: A leading manufacturer of high-performance cycling apparel, Shimano utilizes heat setting in their fabric manufacturing processes to ensure optimal fit, stability, and durability in their sportswear.
  2. Gore-Tex: Known for their innovative waterproof and breathable fabrics, Gore-Tex incorporates heat setting techniques to enhance the performance and functionality of their outdoor apparel.
  3. Patagonia: Patagonia, a renowned outdoor clothing brand, incorporates heat setting in their fabric production to ensure proper shape retention, reduce shrinkage, and enhance overall garment performance.
  4. Lululemon: Lululemon, a prominent athletic apparel brand, uses heat setting to improve the dimensional stability and shape retention of their fabrics, providing athletes with comfort, flexibility, and longevity.
  5. Adidas: Adidas integrates heat setting in their fabric manufacturing processes to enhance the performance and durability of their sportswear, ensuring that their products retain their shape and fit over time.
  6. Nike: Nike employs heat setting techniques to stabilize and enhance the performance of their textiles, allowing athletes to experience maximum comfort, flexibility, and support during physical activities.


Heat setting is a crucial process in the textile industry that stabilizes fabrics and improves their dimensional stability. Through the application of heat and pressure, heat setting enhances the resilience, reduces shrinkage, and improves the overall performance of textiles. Various methods such as steam heat setting, hot air heat setting, calender heat setting, and infrared heat setting are used, depending on fabric type and desired outcomes. Proper handling, adherence to temperature and time specifications, and regular quality control checks are essential for successful heat setting. Prominent international brands like Shimano, Gore-Tex, Patagonia, Lululemon, Adidas, and Nike are among the top users and manufacturers that rely on heat setting to create high-performance, durable, and comfortable textiles for various applications in the industry.

Heat setting
Heat setting is a dry, durable finish for synthetic fibers that creates a crease resistance or permanent pleats by setting the fabric either flat or pleated.
Heat setting
The process by which carpet yarns are exposed to heat to promote twist retention and overall stability to yarn configuration.
Heat setting
Confers by the application of wet or dry heat, stability on fibres, yarns or fabric.

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