Compound modified starch printing paste for polyester and preparation method of compound modified starch printing paste

The invention relates to the technical field of textile dyeing and finishing, and particularly relates to compound modified starch printing paste for polyester and a preparation method of the compoundmodified starch printing paste. The compound modified starch printing paste for polyester is mainly prepared from the following raw materials in parts by mass: 30-50 parts of modified starch, 10-20 parts of hydroxyethyl tamarind gum, 10-20 parts of konjac gum, 5-15 parts of anhydrous sodium sulfate, 5-15 parts of sodium hexametaphosphate and 1-3 parts of sodium butyl p-hydroxybenzoate; the modified starch is prepared from phosphate starch and acetate starch in a ratio of (4 to 7) to (2 to 3). According to the compound modified starch printing paste for polyester and the preparation method ofthe compound modified starch printing paste provided by the invention, the compatibility is reasonable, and the preparation method is simple; the dry rubbing fastness of the obtained compound modifiedstarch printing paste for