Heat seal backing is a type of adhesive applied to the back of patches, allowing them to be attached to fabric with the use of heat, typically from an iron or a heat press. When heat is applied, the adhesive melts and bonds securely to the fabric, creating a durable attachment. This backing method is convenient, quick, and commonly used for patches on clothing, hats, and accessories, making it a popular choice for both personal and commercial applications.

Key Characteristics of Heat Seal Backing:

• Easy Application: Heat seal backing allows patches to be easily affixed to fabrics with a household iron or heat press, requiring no sewing skills.
• Strong Bond: When properly applied, heat seal backing provides a durable bond that withstands regular wear and washing, making it suitable for frequently worn items.
• Versatility: Heat seal patches can be applied to a variety of fabrics, such as cotton, polyester, and denim, though it may not adhere as effectively to materials like nylon or leather.
• Permanent Solution: Once applied, heat seal patches are difficult to remove, making them a semi-permanent to permanent solution for branding, decoration, or personalization.

Heat seal backing is widely used for embroidered, woven, and chenille patches on items like uniforms, jackets, bags, and hats, providing a quick and reliable method for applying patches with a smooth and professional finish.