W series of dyes are wool reactive dyes, suitable for dyeing wool, silk and their blends.

系列是毛用活性染料系列，适用于羊毛、丝及其混纺的染色。

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If that weren't enough, silk fabrics have been replaced by luxuriously textured, nubby blends such as cashmere and wool.

WSJ: Against the Grain

And understand that even a single wearing (or probably a lot of try-ons with your new sweater) means your natural-fiber clothes (wool, silk, cotton, cashmere, fur including blends) are no longer sterile when it comes to insects.

WSJ: Ask Teri: How to Keep Moths From Eating Sweaters