The full name of spandex yarn is the abbreviation of polyurethane fiber, which is made of PTMEG and MDI. It is the material of modern clothing industry. Spandex filaments are covered wi...

1. Most of the non woven fabrics themselves are not hydrophilic or directly hydrophobic. In order to make the non woven fabric achieve the hydrophilic function, adding a hydrophilic age...