The invention relates to the technical field of preparation of a gum used in a
textile printing process, and particularly relates to a method for preparing an
electrolyte-resistant printing gum by using
straw as a
raw material. A process method of pretreatment the
straw by using an
organic solvent, infiltration, alkalization, etherification reaction,
neutralization and posttreatment is adopted, and a reaction
raw material and a reaction
reagent are fully mixed uniformly by high-speed stirring, so that the consumption of the
organic solvent is effectively reduced, thus the production cost is lower, and the printing and
dyeing cost can be effectively reduced; the reaction
raw material and the reaction
reagent are fully mixed uniformly by high-speed stirring, and the reaction
reagent and the raw material are in full contact, thus the reaction efficiency is effectively increased, and the
product substitution degree is higher; meanwhile, through adding
sodium tetraborate, the homogeneity of etherification is improved, and the
electrolyte-resistant performance of the printing gum is effectively improved; most of
lignin and
hemicellulose in the
crop straw are removed by adopting an
organic solvent treatment technology, thus the etherification reaction efficiency of
cellulose molecules is increased, a product with high substitution degree is obtained, and the problem that a printed
textile is hard in hand feel is solved.