白色毛领发黄了怎么办

备用材料：盆，温水，漂白水。
具体清洗步骤如下：
1、准备一盆水温不超过30度的温水，太热的水会损伤衣服面料。
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2、在盆里的清水中倒入适量的漂白水。漂白水中的有效成分次氯酸钠可与水和二氧化碳发生反应，生成次氯酸（具有强氧化性），还原有色物质，达到漂白的目的。
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3、把衣服放进盆中浸湿，操作时带上手套防止皮肤被漂白水灼伤。漂白水会刺激黏膜、皮肤和呼吸道，必须小心使用。若不小心碰触到眼睛，要用大量清水连续冲洗十五分钟。
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4、浸泡一段时间之后，把衣服捞出，放进清水中洗净即可。
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5、最后检查衣领的黄渍是否已经去除即可。
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毛领变黄是因为洗涤原料的碱性残留，漂水是比洗衣粉更厉害的中碱（洗衣粉属于弱碱性），所以越漂越黄，试试用白醋泡吧，但是因为毛领变色时间太长了，效果如何不好说。您可以试试。（一般碱性残留马上用白醋泡能恢复原来颜色）