Ⅰ 要怎麼讓發黃的白衣恢復白色
具體操作有如下幾個步驟：
一、先去掉污漬。如果襯衫上有污漬，先用紙巾、勺子或手邊有的工具，去掉灑在上面的污漬。越快清理污漬來源，襯衫就越耐久。
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二、用洗衣精預處理污漬。接下來，直接將一小滴洗衣精倒在襯衫上殘留的污漬。用不打算再用來刷牙的軟毛牙刷把污漬擦乾凈。就讓洗衣精留在襯衫上，等它凝固，幫助松開污漬，長久下來白衣會更白。
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三、將預先處理過的白襯衫（和其它白色衣物）放入洗衣機。倒入漂白劑。
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四、設置能用的最高水溫就可以啟動洗衣機了。為了取得最佳清潔和漂白效果，不妨用衣服面料能承受的最高水溫。如果不清楚衣服能承受多熱的水，可以檢查護理標簽（一般來說，棉、牛仔布等堅韌織品可以承受熱水，更脆弱的面料或人造纖維只能承受溫水）。
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五、洗好衣服後，取出白襯衫和其它衣服晾乾它。必要時可以重復上述步驟。
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