How do manufacturers test fabric outdoor chairs for stretch recovery?
Manufacturers test fabric outdoor chairs for stretch recovery to ensure long-term durability and comfort. The process typically involves applying controlled tension to the fabric, measuring its ability to return to its original shape after stretching. Common methods include cyclic loading tests, where the fabric undergoes repeated stretching and relaxation to simulate real-world use. Standards like ASTM or ISO may guide these tests, ensuring consistency. High-quality fabrics should recover at least 90% of their original dimensions. Advanced labs may also assess UV and moisture resistance, as environmental factors impact stretch recovery. These rigorous tests help manufacturers guarantee product longevity and customer satisfaction.
