JP2008069496A - 汚れ防止方法 - Google Patents
汚れ防止方法 Download PDFInfo
- Publication number
- JP2008069496A JP2008069496A JP2006251370A JP2006251370A JP2008069496A JP 2008069496 A JP2008069496 A JP 2008069496A JP 2006251370 A JP2006251370 A JP 2006251370A JP 2006251370 A JP2006251370 A JP 2006251370A JP 2008069496 A JP2008069496 A JP 2008069496A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- coagulant
- paper
- bentonite
- pulp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000002689 soil Substances 0.000 title abstract description 5
- 239000000701 coagulant Substances 0.000 claims abstract description 40
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000440 bentonite Substances 0.000 claims abstract description 28
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 28
- 239000007787 solid Substances 0.000 claims abstract description 19
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 11
- 239000013055 pulp slurry Substances 0.000 claims abstract description 11
- 239000010893 paper waste Substances 0.000 claims abstract description 9
- 229920006317 cationic polymer Polymers 0.000 claims abstract description 7
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 7
- 229920000642 polymer Polymers 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims abstract description 7
- 238000003795 desorption Methods 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 7
- DYUWTXWIYMHBQS-UHFFFAOYSA-N n-prop-2-enylprop-2-en-1-amine Chemical group C=CCNCC=C DYUWTXWIYMHBQS-UHFFFAOYSA-N 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 5
- 238000011109 contamination Methods 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 3
- 125000005266 diarylamine group Chemical group 0.000 abstract 1
- -1 organic acid salt Chemical class 0.000 description 56
- 239000000178 monomer Substances 0.000 description 52
- 239000000123 paper Substances 0.000 description 48
- 229920002554 vinyl polymer Polymers 0.000 description 24
- 229940092782 bentonite Drugs 0.000 description 22
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 20
- 150000003839 salts Chemical class 0.000 description 19
- 239000003795 chemical substances by application Substances 0.000 description 14
- 125000002091 cationic group Chemical group 0.000 description 13
- 238000006116 polymerization reaction Methods 0.000 description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 12
- 239000001257 hydrogen Substances 0.000 description 12
- 229910052739 hydrogen Inorganic materials 0.000 description 12
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 11
- 125000000217 alkyl group Chemical group 0.000 description 9
- 150000001412 amines Chemical class 0.000 description 9
- 238000004513 sizing Methods 0.000 description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 8
- 150000007522 mineralic acids Chemical class 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 229910052783 alkali metal Inorganic materials 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 5
- 150000003863 ammonium salts Chemical class 0.000 description 5
- 125000000129 anionic group Chemical group 0.000 description 5
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 5
- 159000000000 sodium salts Chemical class 0.000 description 5
- 150000003460 sulfonic acids Chemical class 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 125000006297 carbonyl amino group Chemical group [H]N([*:2])C([*:1])=O 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 150000001990 dicarboxylic acid derivatives Chemical class 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000011087 paperboard Substances 0.000 description 4
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 125000000542 sulfonic acid group Chemical group 0.000 description 4
- 150000000000 tetracarboxylic acids Chemical class 0.000 description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 4
- 150000003628 tricarboxylic acids Chemical class 0.000 description 4
- 229920000536 2-Acrylamido-2-methylpropane sulfonic acid Polymers 0.000 description 3
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 3
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000003373 anti-fouling effect Effects 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000003623 enhancer Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 3
- 150000003009 phosphonic acids Chemical class 0.000 description 3
- 229920002401 polyacrylamide Polymers 0.000 description 3
- 159000000001 potassium salts Chemical class 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 3
- FYBFGAFWCBMEDG-UHFFFAOYSA-N 1-[3,5-di(prop-2-enoyl)-1,3,5-triazinan-1-yl]prop-2-en-1-one Chemical compound C=CC(=O)N1CN(C(=O)C=C)CN(C(=O)C=C)C1 FYBFGAFWCBMEDG-UHFFFAOYSA-N 0.000 description 2
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- VVJKKWFAADXIJK-UHFFFAOYSA-N Allylamine Chemical compound NCC=C VVJKKWFAADXIJK-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229920002873 Polyethylenimine Polymers 0.000 description 2
- 238000000944 Soxhlet extraction Methods 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- NJSSICCENMLTKO-HRCBOCMUSA-N [(1r,2s,4r,5r)-3-hydroxy-4-(4-methylphenyl)sulfonyloxy-6,8-dioxabicyclo[3.2.1]octan-2-yl] 4-methylbenzenesulfonate Chemical compound C1=CC(C)=CC=C1S(=O)(=O)O[C@H]1C(O)[C@@H](OS(=O)(=O)C=2C=CC(C)=CC=2)[C@@H]2OC[C@H]1O2 NJSSICCENMLTKO-HRCBOCMUSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 150000003926 acrylamides Chemical class 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 150000001350 alkyl halides Chemical class 0.000 description 2
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- GZUXJHMPEANEGY-UHFFFAOYSA-N bromomethane Chemical compound BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 description 2
- WQAQPCDUOCURKW-UHFFFAOYSA-N butanethiol Chemical compound CCCCS WQAQPCDUOCURKW-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 2
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 2
- 229940018557 citraconic acid Drugs 0.000 description 2
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 description 2
- 125000004985 dialkyl amino alkyl group Chemical group 0.000 description 2
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- LIWAQLJGPBVORC-UHFFFAOYSA-N ethylmethylamine Chemical compound CCNC LIWAQLJGPBVORC-UHFFFAOYSA-N 0.000 description 2
- 235000019253 formic acid Nutrition 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 239000001530 fumaric acid Substances 0.000 description 2
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052901 montmorillonite Inorganic materials 0.000 description 2
- WGESLFUSXZBFQF-UHFFFAOYSA-N n-methyl-n-prop-2-enylprop-2-en-1-amine Chemical compound C=CCN(C)CC=C WGESLFUSXZBFQF-UHFFFAOYSA-N 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 239000003505 polymerization initiator Substances 0.000 description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 2
- 238000005956 quaternization reaction Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
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- 238000003756 stirring Methods 0.000 description 2
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- 150000003512 tertiary amines Chemical class 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- XFNJVJPLKCPIBV-UHFFFAOYSA-N trimethylenediamine Chemical compound NCCCN XFNJVJPLKCPIBV-UHFFFAOYSA-N 0.000 description 2
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
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- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 1
- UWFRVQVNYNPBEF-UHFFFAOYSA-N 1-(2,4-dimethylphenyl)propan-1-one Chemical compound CCC(=O)C1=CC=C(C)C=C1C UWFRVQVNYNPBEF-UHFFFAOYSA-N 0.000 description 1
- GSSDUXHQPXODCN-UHFFFAOYSA-N 1-phenylethenylphosphonic acid Chemical compound OP(O)(=O)C(=C)C1=CC=CC=C1 GSSDUXHQPXODCN-UHFFFAOYSA-N 0.000 description 1
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 1
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- IVIDDMGBRCPGLJ-UHFFFAOYSA-N 2,3-bis(oxiran-2-ylmethoxy)propan-1-ol Chemical compound C1OC1COC(CO)COCC1CO1 IVIDDMGBRCPGLJ-UHFFFAOYSA-N 0.000 description 1
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
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- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
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- FKOZPUORKCHONH-UHFFFAOYSA-N 2-methylpropane-1-sulfonic acid Chemical compound CC(C)CS(O)(=O)=O FKOZPUORKCHONH-UHFFFAOYSA-N 0.000 description 1
- KGIGUEBEKRSTEW-UHFFFAOYSA-N 2-vinylpyridine Chemical compound C=CC1=CC=CC=N1 KGIGUEBEKRSTEW-UHFFFAOYSA-N 0.000 description 1
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 description 1
- BXAAQNFGSQKPDZ-UHFFFAOYSA-N 3-[1,2,2-tris(prop-2-enoxy)ethoxy]prop-1-ene Chemical compound C=CCOC(OCC=C)C(OCC=C)OCC=C BXAAQNFGSQKPDZ-UHFFFAOYSA-N 0.000 description 1
- WOZHZOLFFPSEAM-UHFFFAOYSA-N 3-butene-1,2,3-tricarboxylic acid Chemical compound OC(=O)CC(C(O)=O)C(=C)C(O)=O WOZHZOLFFPSEAM-UHFFFAOYSA-N 0.000 description 1
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
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Landscapes
- Paper (AREA)
Abstract
【解決手段】パルプ固形分当たり少なくとも0.5重量%の疎水性物質が溶剤抽出される古紙パルプ原料を使用する抄造において、ベントナイトと凝結剤を用いることを特徴とする汚れ防止方法であって、好ましくは、凝結剤がカチオン性重合物であり、さらに好ましくは、凝結剤がジアリルアミン系重合体であることを特徴とする汚れ防止方法である。また、別の好ましい態様としては、ベントナイトのpH9におけるアニオン化度が0.2〜1meq/g・固形分であり、凝結剤及びベントナイトをパルプスラリーの固形分に対して各々10〜2000ppm、100〜10000ppm添加することであり、脱離率が少なくとも85%である汚れ防止方法である。
【選択図】なし
Description
式(1):CH2=C(R1)CONH2
(式中、R1は水素またはメチル基を表わす)で示されるアクリルアミド化合物および
式(2):[CH2 =C(R2)CH2] 2N− R3
(式中、R2は水素またはメチル基、R3は水素または炭素数1〜6のアルキル基を表わす)
で示されるジアリルアミン化合物の無機または有機酸塩
を共重合したポリマーを使用することが知られている(例えば、特許文献1参照)。また、これらのポリマーを汚れ防止剤として使用する方法が知られている(例えば、特許文献2参照)が、まだ満足できるものではなかった。
(1)パルプ固形分当たり少なくとも0.5重量%の疎水性物質が溶剤抽出される古紙パルプ原料を使用する抄造において、ベントナイトと凝結剤を用いることを特徴とする汚れ防止方法、
(2)凝結剤がカチオン性重合物である前記(1)の汚れ防止方法、
(3)凝結剤がジアリルアミン系重合体である前記(1)又は(2)の汚れ防止方法、
(4)ベントナイトのpH9におけるアニオン化度が0.2〜1meq/g・固形分である前記(1)〜(3)の汚れ防止方法、
(5)凝結剤及びベントナイトをパルプスラリーの固形分に対して各々10〜2000ppm、100〜10000ppm添加する前記(1)〜(4)の汚れ防止方法、
(6)脱離率が少なくとも85%である前記(1)〜(5)の汚れ防止方法、
である。
本発明に用いるベントナイトとしては、モンモリロナイトを主成分とする粘土鉱物であればよく、例えば、モンモリロナイト、スメクタイト、ヘクトライト、バイデライト、ノントロナイト、サポナイト等が挙げられる。ベントナイトは対イオンとなる金属イオンの種類により、ナトリウムベントナイト、カルシウムベントナイト、活性化ベントナイトがあるが、いずれも使用することができる。さらにベントナイトの形態として、粉体品、スラリー品があるが、いずれも使用できる。これらの中でもベントナイトのpH9におけるアニオン化度が0.2〜1meq/g・固形分であることが汚れ防止の上で好ましい。なお、アニオン化度は、ミューテック社製のPCD装置を用いて、1/1000N ポリジアリルジメチルアンモニウムクロライド溶液にて滴定することにより求めた値をいう。
本発明に用いる凝結剤としては有機系凝結剤と無機系凝結剤が挙げられる。前記有機系凝結剤としては少なくとも1種以上のカチオン性モノマーを含んで重合することにより得られるカチオン性重合物、アミン−エピハロヒドリン樹脂、ポリエチレンイミン、ポリエチレンイミン変性物、ポリビニルアミン等のカチオン性化合物、ノニオン性分散剤、アニオン性界面活性剤が挙げられる。
式(1):CH2=C(R1)CONH2
(式中、R1は水素またはメチル基を表わす)で示されるアクリルアミド化合物および
式(2):[CH2 =C(R2)CH2] 2N−R3
(式中、R2は水素またはメチル基、R3は水素または炭素数1〜6のアルキル基を表わす)
で示されるジアリルアミン化合物及びその無機または有機酸塩
を少なくとも共重合したものである。
なお、前記アクリルアミド化合物が40モル%未満の場合や、前記ジアリルアミン化合物が1モル%未満の場合には、本発明の効果が十分に発揮されない場合があり、またその他使用できるモノマーが40モル%を越える場合も同様である。
すなわち、パルプスラリーに必要に応じて各種添加剤を加え、攪拌後、6カットスクリーンを用いてパルプスラリーをフラットスクリーン処理する。フラットスクリーン処理終了後、スクリーン板を垂直に立て、内径が1.5mmのノズルを持つ500ccのプラスチック製洗ビンに清水500ccを入れ流量が850cc±50cc/分の強さで500ccの水がなくなるまでフラットスクリーン板に付着した粘着物を洗い流す。スクリーン板から脱離する残渣(脱離残渣量)とスクリーン板に残る残渣(付着残渣量)を別々に採取し、得られた残渣を熱風乾燥機で乾燥後、重量を測定する。測定によって得られた各残渣の値を式(1)により粘着物の脱離率を算出する。脱離率が高いほど、粘着物の粘着性が低下したことを示す。
パルプに含まれる疎水性物質が0.73%である固形分濃度2.4%の段ボール古紙パルプ400ccに対して、モデルピッチを0.8%、pH9におけるアニオン化度が0.5meq/g・固形分のベントナイトを2000ppm、表1に記載の凝結剤A(ジアリルアミン−アクリルアミド系共重合物)を200ppm添加し、500rpmで1分間攪拌させ、NO.5Aのろ紙を用いて吸引濾過を行った。得られた濾液の濁度を測定して結果を表2に示す。濁度の数値が低いほど、ピッチ成分がパルプに定着したことを示す。なお、濁度は、パルプ濾液を濁度計(製品名:2100P、ハック(株)社製)を用いて測定した。
実施例1において凝結剤Aの代わりに表1に記載の凝結剤B〜Eを使用すること以外同一条件で実験を行い、得られた濾液の濁度を測定して結果を表2に示す。
実施例1においてベントナイトおよび凝結剤Aを使用しないこと以外同一条件で実験を行い、得られた濾液の濁度を測定して結果を表2に示す。
実施例1においてベントナイトを使用しないこと以外同一条件で実験を行い、得られた濾液の濁度を測定して結果を表2に示す。
段ボール古紙3.5g、宅配便ラベルの粘着シール部分0.5g、水道水160ccを混合し、家庭用ミキサーで1分間攪拌し、パルプ化した。このパルプに含まれる疎水性物質は1.22%であった。このパルプスラリーにpH9におけるアニオン化度が0.7meq/g・固形分のベントナイトを1000ppm、表1に記載の凝結剤Aを300ppm添加し、5分間攪拌した。攪拌後、6カットスクリーンを用いてパルプスラリーをフラットスクリーン処理した。フラットスクリーン処理終了後、スクリーン板を垂直に立て、内径が1.5mmのノズルを持つ500ccのプラスチック製洗ビンに清水500ccを入れ流量が850cc±50cc/分の強さで500ccの水がなくなるまでフラットスクリーン板に付着した粘着物を洗い流す。スクリーン板から脱離する残渣(脱離残渣量)とスクリーン板に残る残渣(付着残渣量)を別々に採取した。得られた残渣を熱風乾燥機で乾燥後、重量を測定した。さらに式(1)により粘着物の脱離率を算出して結果を表3に示す。脱離率が高いほど、粘着物の粘着性が低下したことを示す。
実施例6において凝結剤Aの替わりに表1に記載の凝結剤B〜Eを使用すること以外同一条件で実験を行い、得られた脱離率を表3に示す。
実施例6においてベントナイトおよび凝結剤Aを使用しないこと以外同一条件で実験を行い、得られた脱離率を表3に示す。
実施例6においてベントナイトを使用しないこと以外同一条件で実験を行い、得られた脱離率を表3に示す。
Claims (6)
- パルプ固形分当たり少なくとも0.5重量%の疎水性物質が溶剤抽出される古紙パルプ原料を使用する抄造において、ベントナイトと凝結剤を用いることを特徴とする汚れ防止方法。
- 凝結剤がカチオン性重合物であることを特徴とする請求項1記載の汚れ防止方法。
- 凝結剤がジアリルアミン系重合体であることを特徴とする請求項1又は2に記載の汚れ防止方法。
- ベントナイトのpH9におけるアニオン化度が0.2〜1meq/g・固形分であることを特徴とする請求項1〜3のいずれかに記載の汚れ防止方法。
- 凝結剤及びベントナイトをパルプスラリーの固形分に対して各々10〜2000ppm、100〜10000ppm添加することを特徴とする請求項1〜4のいずれかに記載の汚れ防止方法。
- 脱離率が少なくとも85%であることを特徴とする請求項1〜5のいずれかに記載の汚れ防止方法。
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WO2014115192A1 (ja) * | 2013-01-25 | 2014-07-31 | 星光Pmc株式会社 | 板紙の製造方法 |
JP2019218650A (ja) * | 2018-06-18 | 2019-12-26 | 栗田工業株式会社 | ピッチコントロール剤及びピッチコントロール方法 |
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JP2019218650A (ja) * | 2018-06-18 | 2019-12-26 | 栗田工業株式会社 | ピッチコントロール剤及びピッチコントロール方法 |
JP7151201B2 (ja) | 2018-06-18 | 2022-10-12 | 栗田工業株式会社 | ピッチコントロール剤及びピッチコントロール方法 |
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