Distinguishing the elasticity of the fabric, that is, understanding the stretch performance of the fabric, can be done through the following methods:
1. Visual observation: stretch the fabric for a certain length Then release it and observe the rebound of the fabric. If the fabric quickly returns to its original shape, rebounds quickly and has no obvious deformation, it means the fabric has good elasticity.
2. Touch: Touch the fabric with your hands and feel the tightness and resilience of the fabric during gentle stretching. A fabric has good stretch if it stretches and springs back easily and feels soft and stretchy.
3. Tensile test: Take a small piece of fabric for a tensile test. Fix one end, stretch the other end in the vertical direction, and observe the elongation and recovery speed of the fabric. If the fabric can quickly return to its original shape after stretching and the degree of elongation is small, it means that the fabric has good elasticity.
4. Bending test: Bend a small piece of fabric into a circle or fold it, then release it to observe the unfolding of the fabric. If the fabric can quickly unfold and return to flatness without obvious wrinkles or creases, it means the fabric has good elasticity.
It should be noted that different types of fabrics have different elastic properties, such as elastic fiber fabrics, elastic yarn fabrics and blended fabrics. In addition, factors such as fabric treatment, weaving structure, and blending ratio will also affect the elastic performance of the fabric. Therefore, when purchasing fabrics, it is best to understand its ingredients and processes to choose the stretch fabric that suits your needs.
