为什么羊毛衫机洗会缩水 帮帮忙，急求答案啊！

Yes, woolen sweaters can shrink when machine-washed. Here's the reason in both Chinese and English:

中文：

羊毛衫机洗会缩水的原因主要在于羊毛纤维的独特结构。羊毛纤维表面覆盖有鳞片层，这些鳞片在遇到水或外力时，会张开并相互摩擦、纠缠，导致纤维紧密排列，从而使衣物缩水。洗衣机在洗涤过程中产生的搅拌和拉扯力也会加剧这一过程。洗涤温度过高、洗涤剂选择不当、洗涤时间过长，以及洗衣机的机械压力，都是羊毛衫缩水的“罪魁祸首”。

English:

Woolen sweaters can shrink when machine-washed due to the unique structure of wool fibers. The surface of wool fibers is covered with scales that open up and rub against each other when wet or subjected to external forces, causing the fibers to become tightly packed and leading to the shrinkage of the garment. Furthermore, the agitation and pulling forces generated during the washing process in a washing machine can exacerbate this issue. Additionally, factors such as excessive washing temperature, improper choice of detergent, prolonged washing time, and mechanical stress from the washing machine can all contribute to the shrinking of woolen sweaters.

来源：https://gongdigou.com.cn

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