Shrinkage is a phenomenon in which the length or width of medical services changes in a certain state after washing, dehydration, drying, etc. The degree of shrinkage involves different fibers, fabric structure, and different external forces of the fabric. In the process of processing, such as processing.
Objectively speaking, there are shrinkage and fading problems in medical cotton fabric garments, and the key is finishing. Therefore, the fabrics of medical uniforms are pre-shrinked. It is worth noting that the shrinkage rate after pre-shrinking treatment cannot be controlled within 3%-4% of the national standard. Therefore, when choosing medical care clothing, in addition to understanding the quality, color and style of the medical care clothing, it is also necessary to understand the shrinkage rate of the fabric.
After the fiber itself absorbs water, it will produce a certain degree of swelling. Fiber expansion is usually anisotropic (except nylon). That is, the length is shortened and the diameter is increased. Generally, the percentage difference between the length of the fabric before and after launching is called shrinkage. The stronger the ability to absorb water, the more intense the expansion, the greater the shrinkage, and the worse the dimensional stability of the fabric.