A Complete Collection of 100000 Whys
Fav十万个为什么
为什么洗衣时要内外有别？
洗衣时要内外有别，主要是为了防止细菌交叉感染、避免衣物染色以及保护衣物材质。
1、防止细菌交叉感染：外衣接触外界环境，容易沾染细菌，而内衣直接接触皮肤，若混洗可能将细菌带入内衣，增加感染风险。
2、避免染色：外衣颜色深或易掉色，与浅色或敏感的内衣混洗可能导致染色，影响美观。
3、保护材质：外衣材质较粗糙，与内衣混洗可能因摩擦导致内衣变形或损坏，尤其是贴身衣物。
总结：洗衣时要内外有别，主要是为了防止细菌交叉感染、避免衣物染色以及保护衣物材质。
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