1. Mix dibutyl phthalate with octanol according to the amount of the formulation, and stir to dissolve. 2. Add water to the vessel, heat to 70 ° C, add polyvinyl alcohol under stirring, raise the temperature to 90 ° C, and keep warm until all dissolved. After the dissolution, the heating was stopped to lower the temperature to 66 to 69 ° C, and vinyl acetate was added under stirring. 3. The solution prepared in the step (1) is added to the solution prepared in the step (2), and finally ammonium persulfate is added, stirred and uniformly mixed, and emulsion polymerization is carried out at 66 to 69 ° C to obtain a white latex. Realistic pen and ink painting is a pen and ink painting creation using realistic techniques, which is essentially different from all previous pen and ink paintings. In the past, there were signs that one kind of "work" served another kind of "work". The nature of its existence seemed to have no independence "forever". Even if some works had strong independence, they could not get rid of the fate of "attachment". Realistic pen and ink painting is different. It is independent. Its existence has no "dependency". Its existence itself is its ultimate result. Pen Sketch,Sketch Pen Drawing,Black Pen Sketch Drawing,Pen Sketch Drawing The universe in the stone is great , https://www.zdsarts.com
White latex production method