The results indicate the cation-modified spun silk can significantly improve the adsorbability of the K-type reactive dye, especially suitable for deep dyeing in the absence of salt.

• 结果表明，阳离子改性绢丝能显著提高对K型活性染料的吸附能力，尤其适用于染深浓色，而且染浴中不需加盐。