一种并不吸收可见光的无色荧光染料fluorescent whitening agent

• 白得耀眼的棉质服装，往往服装上含有荧光增白剂。

  Dazzling white cotton clothing often contains a fluorescent whitening agent.

• “新国标”规定纸杯不得使用荧光增白剂增白。

  The "New GB Encoding Standard" says that paper cups must not contain fluorescent whitening agent.