Cotton fiber based non-reactive type modified natural dye staining method

The invention relates to the field of textile dye staining technology, in particular to a cotton fiber based non-reactive type modified natural dye staining method. The staining method mainly comprises the steps of pretreatment of a cotton fabric, non-reactive type modified treatment of the cotton fabric and staining treatment of the modified cotton fabric, wherein cationic compound modifier is adopted to modify the cotton fabric in the step of the non-reactive type modified treatment of the cotton fabric, so that the modified cotton fabric can still have good whiteness, high strength and good moisture absorption performance; and the K/S value of the stained cotton fabric can be greatly improved, and good leveling property and color fastness are achieved.