The Study Of Antibacterial Paper With Antibacterial Function

In this paper, several kinds of preparation methods of antibacterial paper with antibacterial function were studied. The antibacterial paper were prepared with chitosan, nisin and nano-SiO_x grafted with organic antibacterial groups, which used the methods of addition in pulp, surface sizing, surface insufflation. Then the technical feature and the antibacterial feature of paper were evaluated.The bearing strength index, the tearing strength index and folding endurance index of chitosan antibacterial paper increased a little, the thickness, basic weight and tensile strength index of chitosan antibacterial paper were not change any more, the whiteness and a reversion of color of chitosan antibacterial paper become bad than control; Tearing strength index and folding endurance index of nisin antibacterial paper increased a little, the thickness, basic weight, the tearing strength index, tensile strength, the whiteness and a reversion of color of nisin antibacterial paper were not change any more; The thickness, basic weight, folding endurance index and the tearing strength index of nano-SiO_x grafted with organic functional groups antibacterial paper increased a little, the tearing strength index, tensile strength index, the whiteness and a reversion of color of nano-SiO_x grafted with organic antibacterial groups antibacterial paper decreased a little.The bactericidal capabilities of these paper were evaluated, the antimicrobial tests indicate that the bactericidal capacities of chitosan antibacterial paper to typical microorganism such as Gram positive and Gram negative bacteria are obvious, , yeast and fungi are not distinct; The bactericidal capacities of nisin antibacterial paper prepared with surface sizing to Gram positive bacteria are obvious, the bactericidal capacities of nisin antibacterial paper prepared with surface insufflation Gram positive bacteria are more obvious; The method of surface sizing superior to that of surface insufflation; The bactericidal capacities of nano-SiO_x grafted with organic functional groups antibacterial paper prepared with addition in pulp and the additive retain agent Gram positive bacteria are increased; The bactericidal...