How do the processing methods listed in the description prevent the clothes from shrinking or warping?

Fabric shrinking or twisting after washing happens because loose yarns and fibers become tangled randomly when exposed to water and friction. To reduce such deformation, RYOO applied five processes to smooth the fabric surface and fix the structure^[1].

First, it undergoes combing, which straightens the grain like combing hair to remove short fibers and foreign substances, and a process that neatens surface fuzz with heat. After that, preshrinking to prevent additional shrinkage during washing by preshrinking the fibers, calendering to flatten the surface with the pressure and heat of rotating rollers, and coating to stabilize the shape of the structure are added in sequence.

From the step of neatening the yarn to the step of setting the shape with heat and pressure, the fabric has essentially been calmly tamed so that the proportions of the garment do not collapse significantly even after washing^[2].