A Complete Collection of 100000 Whys
Fav十万个为什么
为什么塑料瓶回收要撕标签？
简单的摘要：塑料瓶回收要撕标签的原因主要是为了提高回收物质量、减少分拣难度以及避免污染。
1、提高回收物质量：撕掉标签可以确保塑料瓶的材质单一，有利于后续的清洗和再加工，提高回收塑料的纯度和质量。
2、减少分拣难度：标签材质与瓶身不同，撕掉标签可以减少回收过程中的分拣工作，提高回收效率，降低回收成本。
3、避免污染：标签上的油墨和其他物质可能会在回收过程中污染塑料瓶，撕掉标签可以避免这种污染，确保回收物的清洁度。
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