1. The polyvinyl alcohol powder is fully dissolved in deionized water and then filtered. (PVA-1788 or 2488 can be selected as needed.)

2. Place the polyvinyl alcohol adhesive into a stainless steel reaction vessel (an enamel reactor can also be used, though its heat transfer efficiency isn't as effective as a stainless steel one), add the emulsifier OP-10, and mix thoroughly using the agitator.

3. Introduce 15% of the total volume of polyvinyl acetate monomer (i.e., 6.9) and 40% of the potassium persulfate formulation (i.e., 0.036) into the stainless steel reactor, continue stirring, and begin heating. Once the temperature reaches 60-65°C, stop heating. Note that the initiator potassium persulfate should first be mixed with distilled water to create an 8-10% aqueous solution, which should be added in multiple increments.

4. Even though heating has been halted, the temperature will naturally rise under the influence of the initiator. When the temperature exceeds 65°C, the reactor's reflux device will start refluxing. As the temperature surpasses 80°C, the reflux will gradually decrease. At this point, the polyvinyl acetate monomer should be dripped from the reactor's dropping tank at a rate of approximately 10% of the total amount per hour (about 4.6). During the reaction, closely monitor the reaction temperature and adjust it by adding cooling water to the reactor jacket to ensure it does not exceed 80°C.

5. While adding vinyl acetate monomer, the initiator should also be added at a rate of approximately 4.5% of the total formula amount per hour.

6. Vinyl acetate and the initiator should be added over a period of about 8 hours. Due to the effect of the initiator, the reaction becomes intense. After the monomer is added, the reaction temperature will naturally rise. When it reaches about 93°C, hold it for 30 minutes. This marks the completion of the polymerization process.

7. Turn on the cooling water to reduce the temperature in the stainless steel reactor. When it falls below 50°C, add a sodium bicarbonate solution (dissolved in advance to a 10% concentration) and dibutyl phthalate. Adjust the pH to 6-7.

8. The mixer in the stainless steel reactor must remain running throughout the process. When cooled to room temperature, the finished white latex is obtained, and the stirring, discharge, and packaging processes are completed.

9. If the viscosity of the white latex product is too high and its water resistance is poor, the amount of polyvinyl alcohol in the formulation can be moderately reduced.

10. If the stability of the white latex emulsion is poor, the amount of some initiators in the formulation may be appropriately reduced. If the amount is too low, the initiator may not function properly, leading to difficulties in the polymerization of the monomer.

11. The amount of dibutyl phthalate should not be excessive, not exceeding 10% of the monomer. Otherwise, the adhesion of the finished white latex product will decrease, and costs will increase. Its primary role is to enhance the toughness of the emulsion and reduce the film-forming temperature of the emulsion.

12. If the white latex product produces more foam, an appropriate amount of defoamer can be added.

13. The amount of potassium persulfate initiator and the timing of its addition need to be carefully managed. When reflux begins, if the reflux rate is high, it indicates that the initiator is ineffective. If there is too much monomer, the addition of monomer should be paused, and the initiator should be added to the monomer when the reflux is normal.

14. The white latex produced by the above formulation and preparation method is a white, uniform emulsion liquid with a solid content of about 50% and a pH of about 5.

Additionally, the white latex product can be modified by adding 801 glue and anatase titanium dioxide to produce a modified white latex.