JP2008527191A5 - - Google Patents

Claims (26)

Adding a hydrophobic disinfectant having a water solubility of less than 0.3 g / L at 25 ° C. and a cationic fixative to the paper slurry during paper or board manufacture;
Processing the paper slurry in a paper machine to create a sheet:
A method for producing an antibacterial paper sheet for use in building materials.   The hydrophobic fungicide is diiodomethyl-p-tolylsulfone (DIMTS), zinc pyrithione, thiabendazole, 3-iodo-2-propynylbutylcarbamate, dichlorooctylisothiazolinone, o-phenylphenol, bromonitrostyrene, and 2 2. The method of claim 1, wherein the method is selected from the group consisting of-(thiocyanomethylthio) benzothiazole. The method according to claim 1 or 2 , wherein the hydrophobic bactericidal agent is diiodomethyl-p-tolylsulfone. Further comprising the step of treating the paper was pressed the sheet process towards according to any one of claims 1-3. Further comprising the step of treating the sheet paperboard multilayer, Method person according to any one of claims 1-3. The hydrophobic fungicide, the cationic fixing agent prior to addition to the pulp slurry is added by applying wet end, the pulp slurry, who claimed in any one of claims 1-5 Law. The hydrophobic fungicide, the cationic fixing agent after adding to the pulp slurry is added by applying wet end, the pulp slurry, how according to any one of claims 1-5 . The hydrophobic fungicide, simultaneously with the addition of the cationic fixing agent to the pulp slurry, the added by applying wet end to the pulp slurry, who claimed in any one of claims 1-5 Law. Said hydrophobic disinfectant and cationic fixing agent, to form a premix by mixing together, and the premix is added by applying wet end in the pulp slurry, either of claims 1 to 5 the method according to one paragraph or. The cationic fixing agent, polyacrylamide, polyamine, poly DADMAC, polyguanidines, polyethyleneimines, cellulosic ethers, starch, aluminum-based coagulants, iron-based coagulants, modified clays, modified talc, silica fine particles based and its Re It is selected from a combination of al, method person according to any one of claims 1-9. The cationic fixing agent is a polyamine, Method person according to any one of claims 1-10. The cationic fixing agent weight ratio of the fungicide, 1: 35-15: 1 is, methods who claimed in any one of claims 1 to 11. The cationic fixing agent weight ratio of the fungicide, 1: 35 to 2.5: 1 is, methods who claimed in any one of claims 1 to 12. Said sheet processes by either imparting moisture resistance, and further comprising the step of enhancing the / or intensity, methods who claimed in any one of claims 1 to 13. By coating a second antimicrobial agent material, as pure product or formulation, further comprising the step of adding to paper slurry or PVC sheet, according to any one of claims 1-14 mETHODS. 16. The process of any one of claims 1 to 15 , wherein the hydrophobic bactericide is present in an amount equal to at least 0.02 pounds per ton of dry fiber present in the sheet. Antibacterial sheet of paper or paperboard. 16. The method of any one of claims 1-15, wherein the diiodomethyl-p-tolylsulfone is present in an amount of about 2.0-10.0 pounds per ton of dry fiber present in the sheet. Paper or paperboard antibacterial sheet manufactured according to the above. 16. A method according to any one of the preceding claims, wherein the diiodomethyl-p-tolylsulfone is present in an amount of about 2.0 to 3.2 pounds per ton of dry fiber present in the sheet. Paper or paperboard antibacterial sheet manufactured according to the above. The antimicrobial sheet manufactured by the method according to any one of claims 1 to 15 , wherein both the cationic fixative and the bactericidal agent do not substantially change the mechanical properties or quality of the paper. The antibacterial sheet produced by the method according to any one of claims 1 to 15 , which is determined as at least "moderate antibacterial" after 2 weeks of testing according to TAPPI method T-487 for paper and paperboard. The antibacterial sheet manufactured by the method according to any one of claims 1 to 15 , which is determined as "antibacterial" after 3 weeks of testing according to TAPPI method T-487 for paper and paperboard. The antibacterial sheet manufactured by the method according to any one of claims 1 to 15 , which has a fungal growth of 30% or less after 7 days of the test under the condition of ASTM method G-21. The antibacterial sheet produced by the method according to any one of claims 1 to 15 , which has a fungal growth of 30% or less after 4 weeks of the test under the conditions of ASTM method G-21. The antibacterial sheet manufactured by the method according to any one of claims 1 to 15 , which receives an evaluation of 7 to 10 in ASTM D 3273. The antibacterial sheet manufactured by the method according to any one of claims 1 to 15 , further comprising an antibacterial agent surface treatment. A finished gypsum board comprising an antibacterial sheet produced by the method of any one of claims 1 to 15 , which passes ASTM D3273 with a rating of 7-10.