engleski

TREATMANT OF COATED PAPER WITH H2O2 SOLUTIONS DIFFERENT CONCENTRATION

In this work the influence of hydrogen peroxide on Fedrigoni coated print paper in gloss and mat form was examined. The research was conducted by changing concentration of hydrogen peroxide, time and velocity of mixing. Afterwards, a loss of mass and amount of calcium carbonate were measured. The two groups of analysis were done. One group of analysis was with rinsing the soaked sample with distilled water and the other group was without rinsing. The results have shown that hydrogen peroxide have significant influence on that chosen samples. Increasing of hydrogen peroxide concentration reduce the loss of mass, but at the same time after rinsing those soaked sample with distilled water the loss of mass is much higher. It is interesting that hydrogen peroxide have much higher influence on mat coated paper before rinsing and much higher influence on gloss coated paper after rinsing with distilled water.

hydrogen peroxide; coated paper

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