Environmentally-friendly food grade acidic body for textile printing and dyeing and preparation method therefor

摘要

Provided are an environmentally-friendly food grade acidic body for textile printing and dyeing and a preparation method therefor, belonging to the technical field of textile printing and dyeing. The raw materials in part by weight of the acidic body are: 26-36 parts of deionized water, 4.6-6.8 parts of potassium peroxymonosulphate, 10-16 parts of white vinegar and 56-68 parts of citric acid. The preparation method comprises: dissolving potassium peroxymonosulphate in deionized water in a reaction kettle, then raising the temperature to 100-120°C, maintaining the temperature for 28 minutes and then reducing the temperature to 46°C; and then adding white vinegar, stirring same for 6 minutes, further adding citric acid, closing the reaction kettle and maintaining the temperature for 48 minutes. The acidic body is non-toxic, safe, environmentally friendly and edible.