Method for preparing water-soluble varnish polyacrylic emulsion by glue method

The invention provides a method for preparing water-soluble varnish polyacrylic emulsion by a glue method. The water-soluble varnish polyacrylic emulsion is prepared from the following raw materials in part by weight: 0.5 to 1.5 parts of emulsifier, 10 to 30 parts of protective glue, 0.2 to 0.8 part of initiator, 10 to 25 parts of functional monomer, 0.03 to 0.1 part of buffering agent, 10 to 20 parts of neutralizing agent, 0.2 to 1.0 part of cross linking agent, 0.02 to 0.06 part of sodium formaldehyde sulfoxylate and 40 to 55 parts of deionized water. The method has the advantages that: the method has simple process and easy operation; and the product is odorless and smellless, has good transparency, high lustrousness, no solvent violation, no toxicity, no irritation, and no harm to human bodies, meets environmental protection requirement, has quick drying speed, stable performance and no yellowing or discoloring of coating, and has toughness, wear resistance, high temperature resistance, good heat sealing, good processing adaptability after printing, low cost, convenient transportation, and safety and reliability.