1. Process reason: If Oxford cloth is not preformed, the shapes of fibers and fabrics will change more easily, resulting in creases. The setting process under the action of high temperature can improve the proximity and orientation of fiber, keep the fiber shape stable, reduce the probability of change in the dye vat, and help to reduce creases.

2. Uneven stress during use: In the weaving process, if the Oxford cloth is pulled, it may produce large tensile deformation. In addition, manual pulling in the production process may also lead to the crease of Oxford cloth.

The above information is for reference only. It is recommended to read the product manual or consult the product manufacturer for more accurate information.