Filter materials commonly used: filter paper, nylon, polymer material.

滤器常用的材料：滤纸、尼龙布、高分子材料。

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But the Sorona polymer is a lot nicer than nylon or other similar materials.

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The polymer was identified in the 1920s, when Wallace Carothers, the inventor of nylon, worked on it at DuPont.

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