- Nov 09, 2017 -
The experiments to base paper for non-silicon release paper for PU artificial leather were carried out for improving the three most important properties under lab conditions: strength, heat resistance and adhesive strength between coat layer and base paper. The optimum dosage of strengthening agent were obtained via orthogonal experiments, and the dosage of the heat resistance agent was optimized, the influence of smoothness and porosity of base release paper on adhesive strength between coat layer and base paper were investigated as well. The results show that the optimum conditions for strength and heat resistance of the base release paper are as follows: dosage of cationic starch (CS) 1.5%, dosage of polyaminopolyamine epichlorhydrin (PAE) 0.8%, dosage of cationic polyacrylamide (CPAM) 0.06%, dosage of heat-resistant agent 6%. Smoothness of base release paper has a bigger impact on adhesive strength of coat layer and base paper than porosity of base release paper.