Method to improve color fastness of natural dyeing using isinglass

摘要

The present invention relates to a method for improving the color fastness of natural dyeing, especially, loess dyeing and lac dyeing using isinglass. According to the method of the present invention, the fastness of natural dyeing can be improved without using a chemical substance for improving fastness, thereby making it possible to take advantage of the meaning of natural dyeing, and to increase the merchantability of a naturally dyed fabric.