衬衫泛黄怎么洗衬衫穿久了，在很容易出汗的部位如腋窝、肩背等处都会出现许多黄渍，很影响美观。这时候千万不要用热水浸，而应把它侵泡在冷盐水中，大约３～４小时后，再打上肥皂揉洗，黄色汗渍就可以洗掉了。汗液是合蛋白质的污迹，用热水烫，蛋白质会凝固在纤维上洗不... Shirt yellow how to wash the shirt to wear for a long time, in areas such as easy to sweat armpits, shoulders, etc. will appear many yellow stains, it affects the appearance. At this time do not use hot water immersion, but it should be soaked in cold salt water, about 3 to 4 hours later, then rub the soap wash, the yellow perspiration can be washed off. Sweat is a protein stain, with hot water, the protein will coagulate in the fiber wash ...