JPH04308291A - Deinking agent and deinking process using same - Google Patents
Deinking agent and deinking process using sameInfo
- Publication number
- JPH04308291A JPH04308291A JP3073049A JP7304991A JPH04308291A JP H04308291 A JPH04308291 A JP H04308291A JP 3073049 A JP3073049 A JP 3073049A JP 7304991 A JP7304991 A JP 7304991A JP H04308291 A JPH04308291 A JP H04308291A
- Authority
- JP
- Japan
- Prior art keywords
- deinking
- acid
- deinking agent
- ink
- present
- 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 81
- 239000002761 deinking Substances 0.000 title claims abstract description 79
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 51
- 150000001875 compounds Chemical class 0.000 claims abstract description 20
- 239000010893 paper waste Substances 0.000 claims abstract description 19
- 238000004537 pulping Methods 0.000 claims abstract description 18
- 125000002947 alkylene group Chemical group 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 125000003342 alkenyl group Chemical group 0.000 claims description 4
- 125000002252 acyl group Chemical group 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 238000005188 flotation Methods 0.000 abstract description 22
- 235000014113 dietary fatty acids Nutrition 0.000 abstract description 9
- 229930195729 fatty acid Natural products 0.000 abstract description 9
- 239000000194 fatty acid Substances 0.000 abstract description 9
- 150000004665 fatty acids Chemical class 0.000 abstract description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 38
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 33
- 239000002994 raw material Substances 0.000 description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 21
- 238000007639 printing Methods 0.000 description 18
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 15
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 12
- 235000019441 ethanol Nutrition 0.000 description 11
- 238000005187 foaming Methods 0.000 description 11
- 235000011121 sodium hydroxide Nutrition 0.000 description 11
- 238000004065 wastewater treatment Methods 0.000 description 11
- 239000011230 binding agent Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- 229920001131 Pulp (paper) Polymers 0.000 description 9
- 125000004432 carbon atom Chemical group C* 0.000 description 9
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical class C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 239000004115 Sodium Silicate Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 238000004898 kneading Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 6
- 229910052911 sodium silicate Inorganic materials 0.000 description 6
- 238000007259 addition reaction Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 5
- -1 alkylbenzene sulfonates Chemical class 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 4
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 4
- 239000012190 activator Substances 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 4
- 239000013055 pulp slurry Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- 230000003254 anti-foaming effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920001909 styrene-acrylic polymer Polymers 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 2
- BBMCTIGTTCKYKF-UHFFFAOYSA-N 1-heptanol Chemical compound CCCCCCCO BBMCTIGTTCKYKF-UHFFFAOYSA-N 0.000 description 2
- CETWDUZRCINIHU-UHFFFAOYSA-N 2-heptanol Chemical compound CCCCCC(C)O CETWDUZRCINIHU-UHFFFAOYSA-N 0.000 description 2
- OVBFMEVBMNZIBR-UHFFFAOYSA-N 2-methylvaleric acid Chemical compound CCCC(C)C(O)=O OVBFMEVBMNZIBR-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Natural products OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- LJOODBDWMQKMFB-UHFFFAOYSA-N cyclohexylacetic acid Chemical compound OC(=O)CC1CCCCC1 LJOODBDWMQKMFB-UHFFFAOYSA-N 0.000 description 2
- HNRMPXKDFBEGFZ-UHFFFAOYSA-N ethyl trimethyl methane Natural products CCC(C)(C)C HNRMPXKDFBEGFZ-UHFFFAOYSA-N 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- QNVRIHYSUZMSGM-UHFFFAOYSA-N hexan-2-ol Chemical compound CCCCC(C)O QNVRIHYSUZMSGM-UHFFFAOYSA-N 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 238000010191 image analysis Methods 0.000 description 2
- KQNPFQTWMSNSAP-UHFFFAOYSA-N isobutyric acid Chemical compound CC(C)C(O)=O KQNPFQTWMSNSAP-UHFFFAOYSA-N 0.000 description 2
- CPHCIYGRSFZNRD-UHFFFAOYSA-N n-methyl-1-(4,5,6,7-tetrahydro-1h-indazol-3-yl)methanamine Chemical compound C1CCCC2=C1NN=C2CNC CPHCIYGRSFZNRD-UHFFFAOYSA-N 0.000 description 2
- ZWLPBLYKEWSWPD-UHFFFAOYSA-N o-toluic acid Chemical compound CC1=CC=CC=C1C(O)=O ZWLPBLYKEWSWPD-UHFFFAOYSA-N 0.000 description 2
- SJWFXCIHNDVPSH-UHFFFAOYSA-N octan-2-ol Chemical compound CCCCCCC(C)O SJWFXCIHNDVPSH-UHFFFAOYSA-N 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 235000019260 propionic acid Nutrition 0.000 description 2
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 2
- NIONDZDPPYHYKY-SNAWJCMRSA-N (2E)-hexenoic acid Chemical compound CCC\C=C\C(O)=O NIONDZDPPYHYKY-SNAWJCMRSA-N 0.000 description 1
- CWMPPVPFLSZGCY-VOTSOKGWSA-N (2E)-oct-2-enoic acid Chemical compound CCCCC\C=C\C(O)=O CWMPPVPFLSZGCY-VOTSOKGWSA-N 0.000 description 1
- OBETXYAYXDNJHR-SSDOTTSWSA-M (2r)-2-ethylhexanoate Chemical compound CCCC[C@@H](CC)C([O-])=O OBETXYAYXDNJHR-SSDOTTSWSA-M 0.000 description 1
- IGIDLTISMCAULB-YFKPBYRVSA-N (3s)-3-methylpentanoic acid Chemical compound CC[C@H](C)CC(O)=O IGIDLTISMCAULB-YFKPBYRVSA-N 0.000 description 1
- 239000001714 (E)-hex-2-en-1-ol Substances 0.000 description 1
- 239000001602 (E)-hex-3-enoic acid Substances 0.000 description 1
- SDVVLIIVFBKBMG-ONEGZZNKSA-N (E)-penta-2,4-dienoic acid Chemical compound OC(=O)\C=C\C=C SDVVLIIVFBKBMG-ONEGZZNKSA-N 0.000 description 1
- ASFYPVGAALGVNR-AATRIKPKSA-N (e)-hept-2-en-1-ol Chemical compound CCCC\C=C\CO ASFYPVGAALGVNR-AATRIKPKSA-N 0.000 description 1
- JLIDBLDQVAYHNE-IBPUIESWSA-N (s)-(+)-Abscisic acid Natural products OC(=O)\C=C(/C)\C=C\[C@@]1(O)C(C)=CC(=O)CC1(C)C JLIDBLDQVAYHNE-IBPUIESWSA-N 0.000 description 1
- XYHKNCXZYYTLRG-UHFFFAOYSA-N 1h-imidazole-2-carbaldehyde Chemical compound O=CC1=NC=CN1 XYHKNCXZYYTLRG-UHFFFAOYSA-N 0.000 description 1
- ASFYPVGAALGVNR-UHFFFAOYSA-N 2-Hepten-1-ol Natural products CCCCC=CCO ASFYPVGAALGVNR-UHFFFAOYSA-N 0.000 description 1
- QNVRIHYSUZMSGM-LURJTMIESA-N 2-Hexanol Natural products CCCC[C@H](C)O QNVRIHYSUZMSGM-LURJTMIESA-N 0.000 description 1
- ZCHHRLHTBGRGOT-SNAWJCMRSA-N 2-Hexen-1-ol Natural products CCC\C=C\CO ZCHHRLHTBGRGOT-SNAWJCMRSA-N 0.000 description 1
- CWMPPVPFLSZGCY-UHFFFAOYSA-N 2-Octenoic Acid Natural products CCCCCC=CC(O)=O CWMPPVPFLSZGCY-UHFFFAOYSA-N 0.000 description 1
- FLYIRERUSAMCDQ-UHFFFAOYSA-N 2-azaniumyl-2-(2-methylphenyl)acetate Chemical compound CC1=CC=CC=C1C(N)C(O)=O FLYIRERUSAMCDQ-UHFFFAOYSA-N 0.000 description 1
- HZTPKMIMXLTOSK-UHFFFAOYSA-N 2-bromohexanoic acid Chemical compound CCCCC(Br)C(O)=O HZTPKMIMXLTOSK-UHFFFAOYSA-N 0.000 description 1
- GTGTXZRPJHDASG-UHFFFAOYSA-N 2-bromooctanoic acid Chemical compound CCCCCCC(Br)C(O)=O GTGTXZRPJHDASG-UHFFFAOYSA-N 0.000 description 1
- WMFATTFQNRPXBQ-UHFFFAOYSA-N 2-bromopentanoic acid Chemical compound CCCC(Br)C(O)=O WMFATTFQNRPXBQ-UHFFFAOYSA-N 0.000 description 1
- OMPRMWFZHLNRQJ-UHFFFAOYSA-N 2-chlorohexanoic acid Chemical compound CCCCC(Cl)C(O)=O OMPRMWFZHLNRQJ-UHFFFAOYSA-N 0.000 description 1
- LIUDEKQOAOAXJZ-UHFFFAOYSA-N 2-chlorooctanoic acid Chemical compound CCCCCCC(Cl)C(O)=O LIUDEKQOAOAXJZ-UHFFFAOYSA-N 0.000 description 1
- SZKQQZKIGFBZHS-UHFFFAOYSA-N 2-fluoroheptanoic acid Chemical compound CCCCCC(F)C(O)=O SZKQQZKIGFBZHS-UHFFFAOYSA-N 0.000 description 1
- CDWPBSAPAJJTHA-UHFFFAOYSA-N 2-fluorohexanoic acid Chemical compound CCCCC(F)C(O)=O CDWPBSAPAJJTHA-UHFFFAOYSA-N 0.000 description 1
- SASJUHYALINSSV-UHFFFAOYSA-N 2-fluorooctanoic acid Chemical compound CCCCCCC(F)C(O)=O SASJUHYALINSSV-UHFFFAOYSA-N 0.000 description 1
- AAYYJYDNERMSOZ-UHFFFAOYSA-N 2-fluoropentanoic acid Chemical compound CCCC(F)C(O)=O AAYYJYDNERMSOZ-UHFFFAOYSA-N 0.000 description 1
- ZCHHRLHTBGRGOT-UHFFFAOYSA-N 2-hexen-1-ol Chemical compound CCCC=CCO ZCHHRLHTBGRGOT-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical group [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- FYZUENZXIZCLAZ-VOTSOKGWSA-N 2-methyl-2E-heptenoic acid Chemical compound CCCC\C=C(/C)C(O)=O FYZUENZXIZCLAZ-VOTSOKGWSA-N 0.000 description 1
- WLAMNBDJUVNPJU-UHFFFAOYSA-N 2-methylbutyric acid Chemical compound CCC(C)C(O)=O WLAMNBDJUVNPJU-UHFFFAOYSA-N 0.000 description 1
- BQDKCWCMDBMLEH-UHFFFAOYSA-N 2-octynoic acid Chemical compound CCCCCC#CC(O)=O BQDKCWCMDBMLEH-UHFFFAOYSA-N 0.000 description 1
- GWYFCOCPABKNJV-UHFFFAOYSA-M 3-Methylbutanoic acid Natural products CC(C)CC([O-])=O GWYFCOCPABKNJV-UHFFFAOYSA-M 0.000 description 1
- AWQSAIIDOMEEOD-UHFFFAOYSA-N 5,5-Dimethyl-4-(3-oxobutyl)dihydro-2(3H)-furanone Chemical compound CC(=O)CCC1CC(=O)OC1(C)C AWQSAIIDOMEEOD-UHFFFAOYSA-N 0.000 description 1
- YSXDKDWNIPOSMF-UHFFFAOYSA-N 5-chloropentanoic acid Chemical compound OC(=O)CCCCCl YSXDKDWNIPOSMF-UHFFFAOYSA-N 0.000 description 1
- WJBHDZBQZOMDFF-UHFFFAOYSA-N 7-octynoic acid Chemical compound OC(=O)CCCCCC#C WJBHDZBQZOMDFF-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- 239000005635 Caprylic acid (CAS 124-07-2) Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- XXHDAWYDNSXJQM-UHFFFAOYSA-N Chloride-3-Hexenoic acid Natural products CCC=CCC(O)=O XXHDAWYDNSXJQM-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- NIONDZDPPYHYKY-UHFFFAOYSA-N Z-hexenoic acid Natural products CCCC=CC(O)=O NIONDZDPPYHYKY-UHFFFAOYSA-N 0.000 description 1
- 229920005822 acrylic binder Polymers 0.000 description 1
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- IGIDLTISMCAULB-UHFFFAOYSA-N anteisohexanoic acid Natural products CCC(C)CC(O)=O IGIDLTISMCAULB-UHFFFAOYSA-N 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- BCYXFRMDZWKZSF-SNAWJCMRSA-N beta-heptenoic acid Chemical compound CCC\C=C\CC(O)=O BCYXFRMDZWKZSF-SNAWJCMRSA-N 0.000 description 1
- GWYFCOCPABKNJV-UHFFFAOYSA-N beta-methyl-butyric acid Natural products CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- LUEHNHVFDCZTGL-UHFFFAOYSA-N but-2-ynoic acid Chemical compound CC#CC(O)=O LUEHNHVFDCZTGL-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- KPSZWAJWFMFMFF-UHFFFAOYSA-N delta-Hexylen-alpha-carbonsaeure Natural products CC=CCCCC(O)=O KPSZWAJWFMFMFF-UHFFFAOYSA-N 0.000 description 1
- KPSZWAJWFMFMFF-NSCUHMNNSA-N delta-heptenoic acid Chemical compound C\C=C\CCCC(O)=O KPSZWAJWFMFMFF-NSCUHMNNSA-N 0.000 description 1
- XUDOZULIAWNMIU-UHFFFAOYSA-N delta-hexenoic acid Chemical compound OC(=O)CCCC=C XUDOZULIAWNMIU-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 1
- UFULDTPDHIRNGS-UHFFFAOYSA-N hept-6-en-1-ol Chemical compound OCCCCCC=C UFULDTPDHIRNGS-UHFFFAOYSA-N 0.000 description 1
- UIZVMOZAXAMASY-UHFFFAOYSA-N hex-5-en-1-ol Chemical compound OCCCCC=C UIZVMOZAXAMASY-UHFFFAOYSA-N 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- QQZOPKMRPOGIEB-UHFFFAOYSA-N n-butyl methyl ketone Natural products CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 description 1
- 229960002446 octanoic acid Drugs 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 239000010899 old newspaper Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- MINRDQDGBLQBGD-UHFFFAOYSA-N pent-2-ynoic acid Chemical compound CCC#CC(O)=O MINRDQDGBLQBGD-UHFFFAOYSA-N 0.000 description 1
- HVAMZGADVCBITI-UHFFFAOYSA-N pent-4-enoic acid Chemical compound OC(=O)CCC=C HVAMZGADVCBITI-UHFFFAOYSA-N 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 229920005792 styrene-acrylic resin Polymers 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 1
- UAXOELSVPTZZQG-UHFFFAOYSA-N tiglic acid Natural products CC(C)=C(C)C(O)=O UAXOELSVPTZZQG-UHFFFAOYSA-N 0.000 description 1
- IWPOSDLLFZKGOW-AATRIKPKSA-N trans-beta-octenoic acid Chemical compound CCCC\C=C\CC(O)=O IWPOSDLLFZKGOW-AATRIKPKSA-N 0.000 description 1
- XXHDAWYDNSXJQM-ONEGZZNKSA-N trans-hex-3-enoic acid Chemical compound CC\C=C\CC(O)=O XXHDAWYDNSXJQM-ONEGZZNKSA-N 0.000 description 1
- NIDHFQDUBOVBKZ-NSCUHMNNSA-N trans-hex-4-enoic acid Chemical compound C\C=C\CCC(O)=O NIDHFQDUBOVBKZ-NSCUHMNNSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 229940005605 valeric acid Drugs 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Landscapes
- Paper (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は新聞、雑誌、ＯＡ古紙等
の古紙再生時に用いられる脱墨剤及び脱墨方法に関する
。更に詳しくは新聞、雑誌、ＯＡ古紙等をフロテーショ
ン法、洗浄法及びそれらの折衷法で脱墨処理を行うに際
し、高白色度で、粒径が３０μｍ 以上の粗大インキの
少ない脱墨パルプを得る事の出来る脱墨剤及び脱墨方法
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deinking agent and a deinking method used for recycling used paper such as newspapers, magazines, and OA used paper. More specifically, when deinking newspapers, magazines, OA waste paper, etc. using the flotation method, washing method, or a combination thereof, deinked pulp with high whiteness and less coarse ink with a particle size of 30 μm or more can be obtained. This article relates to possible deinking agents and deinking methods.
【０００２】0002
【従来の技術及び発明が解決しようとする課題】新聞、
雑誌、ＯＡ古紙等の再生利用は古くから行われているが
、特に最近は森林資源保護、ごみ処理等の地球環境問題
とも連動し、古紙の有効利用は重要性を増してきている
。更に脱墨パルプの用途も新聞古紙から中質紙用への例
にも見られるように、ワンランク上のパルプへの高度利
用がなされて来ている。一方、最近の古紙は印刷技術、
印刷方式、印刷インキ成分等の変化により、脱墨という
観点からは、一層険しい状況になりつつある。このため
、より以上に脱墨を促進するため、装置へも改良が加え
られて来ている。古紙からインキその他の不純物を分離
除去するため、従来から用いられてきた薬剤としては、
苛性ソーダ、珪酸ソーダ、炭酸ソーダ、リン酸ソーダ等
のアルカリ剤、過酸化水素、次亜硫酸塩、次亜塩素酸塩
等の漂白剤、ＥＤＴＡ、ＤＴＰＡ等の金属イオン封鎖剤
と共に、脱墨剤として、アルキルベンゼンスルホン酸塩
、高級アルコール硫酸エステル塩、α−オレフィンスル
ホン酸塩、ジアルキルスルホサクシネート等の陰イオン
活性剤、高級アルコール、アルキルフェノール及び脂肪
酸のエチレンオキサイド付加物、アルカノールアマイド
類等の非イオン活性剤が単独または２種以上配合されて
使用されて来た。しかし、これらの脱墨剤ではフロテー
ション処理における起泡性は大きいもののインキ捕集能
が小さく、また、洗浄法ではその洗浄力が弱いうえ、高
起泡性のため排水処理での泡トラブルを引き起こし、結
果として低グレードの脱墨パルプしか得られなかった。
特にＰＰＣ（プレーンペーパーコピー）、ＣＰＯ（コン
ピュータープリントアウトプット）に代表されるＯＡ古
紙は、その印刷インキ（トナー）が新聞用印刷インキバ
インダーとは異なるスチレン／アクリル系バインダーや
ポリエステル系バインダーが使用されているため、通常
の脱墨処理をした後は、粒径３０μｍ 以上の粗大イン
キが十分除去されず多量に残存するため、剪断力エネル
ギーを多量にかけたり、アルカリ類を多量に使用しなけ
ればならない。ところが、アルカリ類を多量に使用する
とスティッキー（粘着物）の増加、排水負荷の増大、パ
ルプの脆化が生ずるという好ましからざる結果となり、
ＯＡ古紙及びその配合品の脱墨には有効な手段がないと
いうのが現状であった。[Prior art and problems to be solved by the invention] Newspapers,
Recycling of magazines, OA waste paper, etc. has been carried out for a long time, but recently, the effective use of waste paper has become increasingly important, especially in conjunction with global environmental issues such as forest resource protection and garbage disposal. Furthermore, deinked pulp is increasingly being used to produce a higher grade of pulp, as seen in the use of waste newspapers to medium-quality paper. On the other hand, recently used paper is printed using printing technology.
Due to changes in printing methods, printing ink components, etc., the situation is becoming increasingly difficult from the standpoint of deinking. For this reason, improvements have been made to devices to further promote deinking. Chemicals traditionally used to separate and remove ink and other impurities from waste paper include:
As a deinking agent, along with alkaline agents such as caustic soda, sodium silicate, soda carbonate, and sodium phosphate, bleaching agents such as hydrogen peroxide, hyposulfite, and hypochlorite, and sequestering agents such as EDTA and DTPA. Anionic activators such as alkylbenzene sulfonates, higher alcohol sulfate ester salts, α-olefin sulfonates, dialkyl sulfosuccinates, nonionic activators such as higher alcohols, ethylene oxide adducts of alkylphenols and fatty acids, and alkanolamides. have been used singly or in combination of two or more. However, although these deinking agents have high foaming properties in flotation treatment, their ink collection ability is low, and in addition, their cleaning power is weak in washing methods, and their high foaming properties prevent foaming problems in wastewater treatment. As a result, only low grade deinked pulp was obtained. In particular, used OA papers such as PPC (plain paper copy) and CPO (computer print output) use styrene/acrylic binders and polyester binders whose printing ink (toner) is different from newspaper printing ink binders. Therefore, after normal deinking processing, large amounts of coarse ink with a particle size of 30 μm or more are not sufficiently removed and remain, so a large amount of shearing force energy must be applied or a large amount of alkali must be used. . However, using a large amount of alkali leads to undesirable results such as increased stickiness, increased wastewater load, and pulp embrittlement.
At present, there is no effective means for deinking OA waste paper and its compound products.
【０００３】0003
【課題を解決するための手段】本発明者等はフロテーシ
ョン法、洗浄法及びそれらの折衷法において、優れたイ
ンキ除去能を示し、発泡トラブルもなく、しかも各種古
紙を用いた場合、高白色度脱墨パルプを得る事ができ、
特にＯＡ古紙又はその配合品を用いた場合には多量の剪
断エネルギーを使用することなく、粒径３０μｍ 以上
の粗大インキの低減効果を有する脱墨剤及び脱墨方法を
開発すべく鋭意研究を行った結果、驚くべき事にある特
定の非イオン活性剤を必須成分として含有する脱墨剤、
並びにこの脱墨剤をパルピング工程と、パルピング工程
以後のミキシング工程及び／又はフロテーティング工程
へ分割添加する脱墨方法が、上記欠点を克服できる事を
見出し、本発明に到達した。[Means for Solving the Problems] The present inventors have demonstrated excellent ink removal ability using the flotation method, washing method, and a combination thereof, and there is no problem with foaming, and when using various types of waste paper, high whiteness is achieved. It is possible to obtain highly deinked pulp,
In particular, we have conducted intensive research to develop deinking agents and deinking methods that can reduce coarse ink with a particle size of 30 μm or more without using large amounts of shearing energy, especially when using OA waste paper or its combination products. As a result, surprisingly, a deinking agent containing a specific nonionic activator as an essential ingredient,
It was also discovered that a deinking method in which the deinking agent is added separately to the pulping process and the mixing process and/or the flotating process after the pulping process can overcome the above-mentioned drawbacks, and has thus arrived at the present invention.
【０００４】すなわち本発明は、一般式（１）ＲＯ（Ａ
Ｏ）ｍＨ （１）（式中、Ｒ は
平均炭素数１〜８のアルキル基、アルケニル基、アシル
基又はアリール基、ＡＯは炭素数２〜４のアルキレンオ
キサイド、ｍ は平均で１〜６である。）で表され、且
つ溶解度パラメーター値が ９．０〜１１．８の範囲に
ある化合物を必須成分として含有する脱墨剤、及びこの
脱墨剤をオフィス（ＯＡ）古紙又はその配合品の脱墨に
用いることを特徴とする脱墨方法、並びにこの脱墨剤を
パルピング工程（前工程）とパルピング工程以降の工程
（後工程）へ分割添加することを特徴とする脱墨方法を
提供するものである。本発明に係わる一般式（１） で
表される化合物は炭素数１〜８のアルコール又は脂肪酸
に公知の方法でアルキレンオキサイドを付加することに
より得ることができる。That is, the present invention provides general formula (1) RO(A
O) mH (1) (wherein R is an alkyl group, alkenyl group, acyl group, or aryl group having an average of 1 to 8 carbon atoms, AO is an alkylene oxide having 2 to 4 carbon atoms, and m is an average of 1 to 6 carbon atoms. ) and which contains as an essential component a compound with a solubility parameter value in the range of 9.0 to 11.8. To provide a deinking method characterized in that it is used for deinking, and a deinking method characterized in that the deinking agent is added separately to a pulping process (pre-process) and a process after the pulping process (post-process). It is something. The compound represented by the general formula (1) according to the present invention can be obtained by adding an alkylene oxide to an alcohol or fatty acid having 1 to 8 carbon atoms by a known method.
【０００５】本発明に係わる化合物の原料として用いら
れる炭素数１〜８のアルコールの具体例としては、メチ
ルアルコール、エチルアルコール、プロピルアルコール
、イソプロピルアルコール、ブチルアルコール、トリメ
チルプロピルアルコール、１−ヘキサノール、２−ヘキ
サノール、２−ヘキセン−１−オール、５−ヘキセン−
１−オール、１−ヘプタノール、２−ヘプタノール、２
−ヘプテン−１−オール、６−ヘプテン−１−オール、
１−オクタノール、２−オクタノール、２−オクテン−
１−オール、２−エチルヘキサノール、ベンジルアルコ
ール、フェノール、シクロヘキシルアルコール等が挙げ
られる。Specific examples of alcohols having 1 to 8 carbon atoms used as raw materials for the compounds related to the present invention include methyl alcohol, ethyl alcohol, propyl alcohol, isopropyl alcohol, butyl alcohol, trimethylpropyl alcohol, 1-hexanol, 2 -Hexanol, 2-hexen-1-ol, 5-hexene-
1-ol, 1-heptanol, 2-heptanol, 2
-hepten-1-ol, 6-hepten-1-ol,
1-octanol, 2-octanol, 2-octene-
Examples include 1-ol, 2-ethylhexanol, benzyl alcohol, phenol, and cyclohexyl alcohol.
【０００６】また、本発明に係わる化合物の原料として
用いられる脂肪酸としては、酢酸、プロピオン酸、プロ
ピン酸、ブチル酸、イソ酪酸、テトロル酸、バレリアン
酸、α−メチル酪酸、イソ吉草酸、トリメチルプロパン
酸、２−ペンチン酸、アリル酢酸、２，４ −ペンタジ
エン酸、カプロン酸、２−メチルペンタン酸、３−メチ
ルペンタン酸、４−イソカプロン酸、２−ヘキシン酸、
ソルビン酸、２−ヘキセン酸、３−ヘキセン酸、４−ヘ
キセン酸、５−ヘキセン酸、ヘプタン酸、２−ヘプテン
酸、３−ヘプテン酸、５−ヘプテン酸、６−ヘプテン酸
、２−ヘプチン酸、６−ヘプチン酸、カプリル酸、２−
エチルヘキサン酸、２−オクテン酸、３−オクテン酸、
２−オクチン酸、７−オクチン酸、２−メチル−２−ヘ
プテン酸、安息香酸、メチル安息香酸、シクロヘキシル
酢酸、２−フルオロ吉草酸、２−フルオロカプロン酸、
２−フルオロエナント酸、２−フルオロカプリル酸、２
−クロロカプロン酸、２−クロロエナント酸、２−クロ
ロカプリル酸、２−ブロモ吉草酸、２−ブロモカプロン
酸、２−ブロモエナント酸、２−ブロモカプリル酸、５
−クロロ吉草酸等を挙げることができる。[0006]Furthermore, fatty acids used as raw materials for the compounds related to the present invention include acetic acid, propionic acid, propic acid, butyric acid, isobutyric acid, tetrolic acid, valeric acid, α-methylbutyric acid, isovaleric acid, and trimethylpropane. acid, 2-pentynic acid, allyl acetic acid, 2,4-pentadienoic acid, caproic acid, 2-methylpentanoic acid, 3-methylpentanoic acid, 4-isocaproic acid, 2-hexic acid,
Sorbic acid, 2-hexenoic acid, 3-hexenoic acid, 4-hexenoic acid, 5-hexenoic acid, heptanoic acid, 2-heptenoic acid, 3-heptenoic acid, 5-heptenoic acid, 6-heptenoic acid, 2-heptenoic acid , 6-heptic acid, caprylic acid, 2-
Ethylhexanoic acid, 2-octenoic acid, 3-octenoic acid,
2-octynic acid, 7-octynic acid, 2-methyl-2-heptenoic acid, benzoic acid, methylbenzoic acid, cyclohexyl acetic acid, 2-fluorovaleric acid, 2-fluorocaproic acid,
2-fluoroenanthic acid, 2-fluorocaprylic acid, 2
-Chlorocaproic acid, 2-chloroenantoic acid, 2-chlorocaprylic acid, 2-bromovaleric acid, 2-bromocaproic acid, 2-bromoenantoic acid, 2-bromocaprylic acid, 5
-chlorovaleric acid and the like.
【０００７】一般式（１） において、特に好ましくは
Ｒ の炭素数が１〜６であり、更に好ましくはＲ がア
ルキル基、アシル基のものである。In the general formula (1), it is particularly preferable that R has 1 to 6 carbon atoms, and more preferably that R is an alkyl group or an acyl group.
【０００８】また、アルコール又は脂肪酸に付加するア
ルキレンオキサイドはエチレンオキサイド（以下ＥＯと
略す）、プロピレンオキサイド（以下ＰＯと略す）、ブ
チレンオキサイド（以下ＢＯと略す）を単独或いは混合
して用いることができる。特に好ましくはＥＯ、ＰＯ及
びこれらの混合物である。アルキレンオキサイドの付加
方法は、ランダム付加、ブロック付加のいずれの付加方
法でも構わないが、特に抄紙工程、排水処理工程での発
泡トラブルを考慮するとランダム付加が好ましい。Furthermore, as the alkylene oxide to be added to the alcohol or fatty acid, ethylene oxide (hereinafter abbreviated as EO), propylene oxide (hereinafter abbreviated as PO), and butylene oxide (hereinafter abbreviated as BO) can be used alone or in combination. . Particularly preferred are EO, PO and mixtures thereof. The alkylene oxide may be added by either random addition or block addition, but random addition is preferable, especially in view of foaming problems in the papermaking process and wastewater treatment process.
【０００９】本発明に係わる一般式（１） で表される
化合物の数値限定、溶解度パラメーター値は臨界的であ
って、これに類似する化合物であっても、本発明の規定
に該当しないものは本発明の顕著な効果は得られない。
従って、一般式（１） における炭素数の限定、化合物
の物理化学定数の限定は極めて重要である。後記の実施
例より明らかにされるが、例えば一般式（１） 中のＲ
が１より小さい、即ちアルキル基、アルケニル基等の
炭化水素基でないとインキ捕集能が弱く高白色度の脱墨
パルプを得ることができず、炭素数が８を越えると高起
泡性のため排水処理工程で泡トラブルを引き起こし、脱
墨パルプの生産性が著しく低下する。また、アルキレン
オキサイドの付加モル数 ｍは平均で１〜６であるが、
特に好ましくは１〜４である。アルキレンオキサイドの
ｍが１より小さいと粒径３０μｍ 以上の粗大インキ
の残存が著しく、また６を越えると高起泡性のため排水
処理工程での泡トラブルが多発する。[0009] The numerical limitations and solubility parameter values of the compound represented by the general formula (1) related to the present invention are critical, and even if it is a similar compound, it does not fall under the provisions of the present invention. The remarkable effects of the present invention cannot be obtained. Therefore, limiting the number of carbon atoms in general formula (1) and limiting the physicochemical constants of the compound are extremely important. As will be made clear from the examples below, for example, R in general formula (1)
If the number of carbon atoms is less than 1, that is, it is not a hydrocarbon group such as an alkyl group or alkenyl group, the ink collecting ability will be weak and it will not be possible to obtain a deinked pulp with high whiteness. This causes problems with foaming in the wastewater treatment process, and the productivity of deinked pulp decreases significantly. In addition, the number of moles m added to alkylene oxide is 1 to 6 on average, but
Particularly preferably 1 to 4. If m of the alkylene oxide is less than 1, coarse ink with a particle size of 30 μm or more will remain significantly, and if it exceeds 6, foaming problems will occur frequently in the wastewater treatment process due to the high foaming property.
【００１０】一般式（１） で表される化合物の溶解度
パラメーター値は９．０〜１１．８、好ましくは ９．
５〜１１．３、更に好ましくは ９．８〜１０．８の範
囲にあることが重要である。
溶解度パラメーター値が ９．０より小さい場合、粗大
インキが多い脱墨パルプしか得られない。また１１．８
を越えると、インキが微細化しすぎフロテーション工程
で十分インキが除去できず、その結果、低白色度の脱墨
パルプしか得られず、なおかつフロテーションリジェク
トの泡切れ性不良や排水処理工程での発泡トラブルとい
った問題も発生する。The solubility parameter value of the compound represented by general formula (1) is 9.0 to 11.8, preferably 9.0 to 11.8.
It is important that it is in the range of 5 to 11.3, more preferably 9.8 to 10.8. If the solubility parameter value is less than 9.0, only deinked pulp with a large amount of coarse ink can be obtained. Also 11.8
If the ink exceeds this value, the ink becomes too fine and cannot be removed sufficiently in the flotation process.As a result, only deinked pulp with low whiteness is obtained, and the flotation reject has poor debubbling properties and problems in the wastewater treatment process. Problems such as foaming problems also occur.
【００１１】ここでいう溶解度パラメーター値とはＨｉ
ｌｄｅｂｒａｎｄによって確立された正則溶液論から定
義される物理化学定数である。二つの物質が溶解しあう
か否かは次式で定義される混合自由エネルギーΔ Ｇに
よって決定される。
ΔＧ＝ΔＨ−ＴΔＳ
このΔ Ｇが負であれば溶解するということを示すが、
このΔ Ｇは溶解度パラメーター値の関数で表される。
正則溶液論からいえば、モル混合自由エネルギーΔＧ
は、ΔＧ＝ＲＴ（Ｘ１ｌｎＸ１＋Ｘ２ｌｎＸ２）＋Ｖ１
Ｘ１φ２２（δ１−δ２）２＋Ｖ２Ｘ２φ１２（δ１−
δ２）２で与えられ、ここでＸ１， Ｘ２はそれぞれ成
分１，２のモル分率、 Ｖｉ はモル容積、φｉ は容
積分率、δｉ は溶解度パラメーター値を表す。The solubility parameter value here is Hi
It is a physicochemical constant defined from the regular solution theory established by David Idebrand. Whether or not two substances dissolve into each other is determined by the mixing free energy ΔG defined by the following equation. ΔG=ΔH−TΔS If this ΔG is negative, it means that it will dissolve.
This ΔG is expressed as a function of the solubility parameter value. From regular solution theory, the molar mixing free energy ΔG
is ΔG=RT(X1lnX1+X2lnX2)+V1
X1φ22(δ1-δ2)2+V2X2φ12(δ1-
δ2)2, where X1 and X2 are the mole fractions of components 1 and 2, respectively, Vi is the molar volume, φi is the volume fraction, and δi is the solubility parameter value.
【００１２】本発明者らは各種古紙の印刷インキの脱墨
性と脱墨剤の化学構造及び溶解度パラメーター値を検討
した結果、驚くべきことにある特定の化学構造で特定範
囲の溶解度パラメーター値を有する化合物が粒径３０μ
ｍ 以上の粗大インキの低減に優れていることを見出し
、本発明を完成するに至ったものである。[0012] The present inventors investigated the deinking properties of printing inks for various waste papers, the chemical structures and solubility parameter values of deinking agents, and surprisingly found that a certain chemical structure had a solubility parameter value in a specific range. The compound has a particle size of 30μ
The present inventors have discovered that the method is excellent in reducing coarse ink of 2 m or more, and have completed the present invention.
【００１３】本発明において、アルキレンオキサイドの
付加反応方法は特に限定されるものではなく、一般に行
われている活性水素を有する化合物へのアルキレンオキ
サイド付加反応の条件で行うことができる。即ち、アル
コール又は脂肪酸に触媒量のアルカリ物質を加え、これ
に約 １００〜２００ ℃、１〜３ｋｇ／ｃｍ２ （ゲ
ージ）でアルキレンオキサイドを数時間反応させること
によってなし得る。[0013] In the present invention, the alkylene oxide addition reaction method is not particularly limited, and it can be carried out under the conditions commonly used for alkylene oxide addition reactions to compounds having active hydrogen. That is, this can be achieved by adding a catalytic amount of an alkaline substance to alcohol or fatty acid, and reacting the alkylene oxide with the alcohol or fatty acid at about 100 to 200° C. and 1 to 3 kg/cm 2 (gauge) for several hours.
【００１４】従来技術として、特開昭５２−８１１０７
号公報、特開昭５５−５１８９１ 号公報、特開昭５
５−５１８９２ 号公報、特開昭５６−７９７９５ 号
公報、特開昭５８−１０９６９６号公報等が挙げられる
が、これらは本発明の粗大インキ低減効果はない。また
、炭素数やアルキレンオキサイド付加モル数等を規定は
しているが、実施例では原料となるべく化合物の炭素数
が１２以上のものがほとんどであり、炭素数１１以下の
ものの具体例は例示されていない。また、特開平１−２
６６２９２号公報にはエーテル型活性剤がＯＡ古紙用脱
墨剤として効果があるとうたっているが、本発明の一般
式（１） のＡ０部分がエチレンオキサイドであり、且
つ末端が水酸基ではなく炭素数１〜１８のアルキル基、
アルケニル基であり、明らかに本発明の脱墨剤の化合物
とは化学構造が異なる。また、これまでの脱墨剤は新聞
古紙や雑誌古紙を対象にしているが、本発明は特にＯＡ
古紙及びその配合品に効果を有することが特徴である。As a prior art, Japanese Patent Application Laid-Open No. 52-81107
Publication No. 55-51891, Japanese Patent Application Laid-Open No. 1983
5-51892, JP-A-56-79795, JP-A-58-109696, etc., but these do not have the coarse ink reduction effect of the present invention. In addition, although the number of carbon atoms and the number of moles of alkylene oxide added are specified, in most of the examples, compounds with carbon numbers of 12 or more are used as raw materials, and specific examples of compounds with carbon numbers of 11 or less are not given. Not yet. Also, JP-A-1-2
Publication No. 66292 claims that the ether type activator is effective as a deinking agent for OA waste paper, but the A0 part of the general formula (1) of the present invention is ethylene oxide, and the terminal is not a hydroxyl group but has a carbon number. 1-18 alkyl group,
It is an alkenyl group, and its chemical structure is clearly different from that of the compound of the deinking agent of the present invention. In addition, conventional deinking agents have been targeted at old newspapers and magazines, but the present invention is particularly suitable for OA.
It is characterized by its effectiveness on waste paper and its compound products.
【００１５】インキバインダーからみると、新聞古紙の
場合、印刷インキバインダーがフェノール系樹脂である
のに対し、ＯＡ古紙はスチレンアクリル系樹脂、ポリエ
ステル系樹脂であり、インキの物理化学的性状が異なる
。このため、ＯＡ古紙に対しては新聞古紙とは異なる視
点からの脱墨剤設計が必要となる。本発明は溶解度パラ
メーターといった従来技術のなかには説明されていない
方向から検討した結果、ごく限られた範囲内の溶解度パ
ラメーター値を有する化合物が効果的であるという事実
に基づきなされたものであり、従来技術とは明らかに異
なる。When looking at the ink binder, in the case of used newspaper, the printing ink binder is a phenolic resin, whereas in the case of OA waste paper, the printing ink binder is a styrene-acrylic resin or a polyester-based resin, and the physicochemical properties of the ink are different. For this reason, it is necessary to design a deinking agent for OA waste paper from a different perspective than for used newspaper paper. The present invention was made based on the fact that compounds having solubility parameter values within a very limited range are effective as a result of investigation from a direction not explained in the prior art, such as solubility parameters. It is clearly different.
【００１６】本発明の脱墨剤には公知の脱墨剤、例えば
高級アルコール硫酸塩、アルキルベンゼンスルホン酸塩
、高級アルコール及びアルキルフェノールのエチレンオ
キサイド付加物、脂肪酸及びその塩、脂肪酸アルキレン
オキサイド付加物、油脂アルキレンオキサイド付加物等
と併用した場合も優れた脱墨性能を発現する。本発明の
脱墨剤と従来公知の脱墨剤との併用比率は、前者／後者
＝９０／１０〜１０／９０（重量比）、特に好ましくは
２０／８０〜６０／４０である。The deinking agent of the present invention includes known deinking agents such as higher alcohol sulfates, alkylbenzene sulfonates, ethylene oxide adducts of higher alcohols and alkylphenols, fatty acids and salts thereof, fatty acid alkylene oxide adducts, oils and fats. It also exhibits excellent deinking performance when used in combination with alkylene oxide adducts. The combination ratio of the deinking agent of the present invention and the conventionally known deinking agent is former/latter = 90/10 to 10/90 (weight ratio), particularly preferably 20/80 to 60/40.
【００１７】一般に、脱墨剤は、パルピング工程、ニー
ディング工程、ディスパージング工程、ケミカルミキシ
ング工程、リファイニング工程からなるミキシング工程
或いはフローテション工程の何れか、或いは両方に添加
される。[0017] Generally, a deinking agent is added to either the pulping process, the kneading process, the dispersing process, the chemical mixing process, the mixing process consisting of the refining process, or the flotation process, or both.
【００１８】これに対して、本発明の脱墨方法は、本発
明に係わる前述の脱墨剤を、ミキシング工程中のパルピ
ング工程（前工程）とパルピング工程以降の工程（後工
程）に分割添加することにより、粗大インキを低減化し
得る脱墨方法である。On the other hand, in the deinking method of the present invention, the above-mentioned deinking agent according to the present invention is added separately to the pulping process (pre-process) and the process after the pulping process (post-process) during the mixing process. This is a deinking method that can reduce coarse ink.
【００１９】本発明の脱墨剤を分割添加する時の比率は
、パルピング工程（前工程）とパルピング工程以外の工
程（後工程）で前／後＝１０／９０〜９０／１０（重量
比）、特に好ましくは３０／７０〜７０／３０である。
尚、本発明の脱墨剤は一括添加したり、或いは後工程内
で分割して添加したりすることもできる。[0019] When the deinking agent of the present invention is added in parts, the ratio between the pulping process (pre-process) and the process other than the pulping process (post-process) is 10/90 to 90/10 (weight ratio). , particularly preferably 30/70 to 70/30. Incidentally, the deinking agent of the present invention can be added all at once, or can be added in parts in a subsequent process.
【００２０】本発明の脱墨剤の添加量は、操業性を損な
わず、かつ経済的な範囲が望ましいが、原料古紙に対し
０．０３〜１．０ 重量％が好ましい。The amount of the deinking agent of the present invention to be added is preferably within an economical range that does not impair operability, and is preferably 0.03 to 1.0% by weight based on the raw material waste paper.
【００２１】[0021]
【実施例】以下、製造例及び実施例により本発明を具体
的に説明するが、本発明はこれらに限定されるものでは
ない。EXAMPLES The present invention will be specifically explained below with reference to production examples and examples, but the present invention is not limited thereto.
【００２２】製造例１
１．５ リットルのオートクレーブに２−エチルヘキシ
ルアルコール ７７４．８ｇと１００ ％ ＫＯＨを
１．６ｇ仕込み、約６００ｒｐｍの攪拌速度の条件下で
１５０℃になるまで昇温した。次いで、エチレンオキ
サイド ２５１．９ｇを温度 １５０℃〜１６０ ℃、
圧力１〜３ｋｇ／ｃｍ２ （ゲージ）下で反応させた。
付加反応終了後、８０℃に冷却し、酢酸にてｐＨを６に
調整した。反応生成物（本発明品、表１中 Ｎｏ．１）
の収率は９９％であった。Production Example 1 774.8 g of 2-ethylhexyl alcohol and 100% KOH were placed in a 1.5 liter autoclave.
1.6 g was charged, and the temperature was raised to 150° C. under stirring speed of about 600 rpm. Next, 251.9 g of ethylene oxide was heated at a temperature of 150°C to 160°C.
The reaction was carried out under a pressure of 1 to 3 kg/cm2 (gauge). After the addition reaction was completed, the mixture was cooled to 80° C. and the pH was adjusted to 6 with acetic acid. Reaction product (product of the present invention, No. 1 in Table 1)
The yield was 99%.
【００２３】製造例２
１．５ リットルのオートクレーブにプロピオン酸 ２
６２．９ｇと１００％ ＫＯＨを ６．０ｇ仕込み、約
６００ｒｐｍの攪拌速度の条件下で １５０℃になるま
で昇温した。次いで、エチレンオキサイド／プロピレン
オキサイド （５０／５０， モル比）７２４．８ｇを
温度１５０℃〜１６０ ℃、圧力１〜３ｋｇ／ｃｍ２
（ゲージ）下で反応させた。付加反応終了後、８０℃に
冷却し、酢酸にてｐＨを６に調整した。反応生成物（本
発明品、表２中 Ｎｏ．１６）の収率は９９％であった
。Production Example 2 Propionic acid 2 was placed in a 1.5 liter autoclave.
62.9g and 6.0g of 100% KOH were charged, and the temperature was raised to 150°C at a stirring speed of about 600 rpm. Next, 724.8 g of ethylene oxide/propylene oxide (50/50, molar ratio) was heated at a temperature of 150°C to 160°C and a pressure of 1 to 3 kg/cm2.
(gauge). After the addition reaction was completed, the mixture was cooled to 80° C. and the pH was adjusted to 6 with acetic acid. The yield of the reaction product (product of the present invention, No. 16 in Table 2) was 99%.
【００２４】製造例３
１．５ リットルのオートクレーブにプロピルアルコー
ル １９４．２ｇと １００％ ＫＯＨを３．６ｇ仕込
み、約６００ｒｐｍの攪拌速度の条件下で １５０℃に
なるまで昇温した。次いで、エチレンオキサイド ４２
６．９ｇを温度 １５０℃〜１６０ ℃、圧力１〜３ｋ
ｇ／ｃｍ２ （ゲージ）下で反応させた後、温度を １
２０〜１３０ ℃に下げ、圧力１〜３ｋｇ／ｃｍ２ （
ゲージ）下でプロピレンオキサイドを ３７５．３反応
させた。その後、８０℃に冷却し、酢酸にてｐＨを６に
調整した。反応生成物（本発明品、表３中 Ｎｏ．３０
）の収率は９９％であった。Production Example 3 A 1.5-liter autoclave was charged with 194.2 g of propyl alcohol and 3.6 g of 100% KOH, and the temperature was raised to 150° C. under stirring speed of about 600 rpm. Next, ethylene oxide 42
6.9g at temperature 150℃~160℃, pressure 1~3K
After reacting under g/cm2 (gauge), the temperature was increased to 1
The temperature was lowered to 20-130℃, and the pressure was 1-3kg/cm2 (
Propylene oxide was reacted under 375.3 gauge). Thereafter, it was cooled to 80°C and the pH was adjusted to 6 with acetic acid. Reaction product (product of the present invention, No. 30 in Table 3)
) yield was 99%.
【００２５】製造例４
１．５ リットルのオートクレーブにブチル酸 ２３９
．５ｇと １００％ＮａＯＨを ４．６ｇ仕込み、約６
００ｒｐｍの攪拌速度の条件下で １５０℃になるまで
昇温した。次いでエチレンオキサイド／プロピレンオキ
サイド／ブチレンオキサイド（４０／４０／２０，モル
比） ５６０．０ｇを温度 １５０℃〜１６０ ℃、圧
力１〜３ｋｇ／ｃｍ２ （ゲージ）下で反応させた。付
加反応終了後、８０℃に冷却し、酢酸にてｐＨを６に調
整した。反応生成物（本発明品、表４中 Ｎｏ．３８）
の収率は９９％であった。Production Example 4 Butyric acid 239 in a 1.5 liter autoclave
．． Prepare 5g and 4.6g of 100% NaOH, approx.
The temperature was raised to 150° C. at a stirring speed of 0.00 rpm. Next, 560.0 g of ethylene oxide/propylene oxide/butylene oxide (40/40/20, molar ratio) was reacted at a temperature of 150 DEG C. to 160 DEG C. and a pressure of 1 to 3 kg/cm@2 (gauge). After the addition reaction was completed, the mixture was cooled to 80° C. and the pH was adjusted to 6 with acetic acid. Reaction product (product of the present invention, No. 38 in Table 4)
The yield was 99%.
【００２６】実施例１
本実施例は脱墨剤のパルピング工程一括添加の例である
。Example 1 This example is an example of adding a deinking agent all at once during the pulping process.
【００２７】印刷インキのバインダーがスチレンアクリ
ル系であり、印刷インキ量が ２．４ｇ／ｍ２のＰＰＣ
古紙（１００ ％）を２×５ｃｍに細断後、その一定量
を卓上離解機に入れ、その中に水及び苛性ソーダ（対原
料）０．５ ％、珪酸ソーダ３号 （対原料）１．０％
、３０％過酸化水素（対原料）１．０ ％、表１に示す
脱墨剤（対原料）０．２ ％を加え、パルプ濃度５％、
４５℃で２０分離解した後、４５℃にて６０分間熟成処
理を行った。その後、高速脱水機で２２％まで脱水し、
回転速度２００ｒｐｍの２軸型ラボニーダーでニーディ
ング処理を行った。その後、水を加えてパルプ濃度を４
％まで希釈し、卓上離解機で再度３０秒離解する。その
スラリーを８０メッシュワイヤーで４％濃度まで濃縮後
、水を加えて１％濃度に希釈し、タッピースタンダード
抄紙機にてパルプシートを作製した。得られたパルプシ
ートを測色色差計にて白色度を測定し、画像解析装置（
×１００ 倍）にて粒径３０μｍ 以上のインキ個数を
測定した。また、フロテーションリジェクトの消泡性を
排水処理工程での泡トラブルの目安とした。この消泡性
の数値が大きければ排水処理工程で泡トラブルを発生さ
せる可能性が大きいことを示す。ここでいうフロテーシ
ョンリジェクトの消泡性は次式で表される。[0027] The binder of the printing ink is styrene acrylic, and the amount of printing ink is 2.4 g/m2.
After shredding waste paper (100%) into 2 x 5 cm pieces, put a certain amount of it into a tabletop disintegrator, and add water, caustic soda (based on raw materials) 0.5%, and sodium silicate No. 3 (based on raw materials) 1.0%. %
, 30% hydrogen peroxide (based on raw material) 1.0%, deinking agent shown in Table 1 (based on raw material) 0.2% was added, pulp concentration was 5%,
After decomposition at 45°C for 20 minutes, aging treatment was performed at 45°C for 60 minutes. After that, it was dehydrated to 22% using a high-speed dehydrator.
Kneading treatment was performed using a two-screw type lab kneader with a rotational speed of 200 rpm. Then, add water to bring the pulp density to 4.
% and disintegrate again for 30 seconds using a tabletop disintegrator. The slurry was concentrated to a concentration of 4% using an 80 mesh wire, diluted to a concentration of 1% by adding water, and a pulp sheet was produced using a Tappy standard paper machine. The whiteness of the obtained pulp sheet was measured using a colorimeter and an image analysis device (
The number of inks with a particle size of 30 μm or more was measured using a magnification of 100 times. In addition, the antifoaming properties of flotation reject were used as a guideline for foaming problems in the wastewater treatment process. A large value of antifoaming property indicates that there is a high possibility of foaming problems occurring in the wastewater treatment process. The antifoaming property of the flotation reject mentioned here is expressed by the following formula.
【００２８】[0028]
【数１】[Math 1]
【００２９】各種脱墨剤の脱墨性能結果を表１に示す。Table 1 shows the deinking performance results of various deinking agents.
【００３０】[0030]
【表１】[Table 1]
【００３１】[0031]
【表２】[Table 2]
【００３２】実施例２
本実施例は脱墨剤のパルピング工程とニーディング工程
分割添加の例である。印刷インキのバインダーがスチレ
ンアクリル系であり、印刷インキ量が ２．４ｇ／ｍ２
のＰＰＣ古紙（１００ ％）を２×５ｃｍに細断後、そ
の一定量を卓上離解機に入れ、その中に水及び苛性ソー
ダ（対原料）０．３ ％、表２に示す脱墨剤（対原料）
０．１ ％を加え、パルプ濃度５％、４５℃で２０分離
解した後、４５℃にて６０分間熟成処理を行った。その
後、高速脱水機で２２％まで脱水し、苛性ソーダ（対原
料）０．２％、珪酸ソーダ３号（対原料）１．０ ％、
３０％過酸化水素（対原料）１．０ ％、表２に示す脱
墨剤（対原料）０．１ ％を添加し、回転速度２００ｒ
ｐｍの２軸型ラボニーダーでニーディング処理を行った
。
その後、水を加えて４％まで希釈し、卓上離解機で再度
３０秒離解する。そのスラリーを水で１％に希釈した後
、３０℃にて１０分間フロテーション処理を施した。フ
ロテーション後のパルプスラリーを８０メッシュワイヤ
ーで４％濃度まで濃縮後、水を加えて１％濃度に希釈し
、タッピースタンダード抄紙機にてパルプシートを作製
した。得られたパルプシートを測色色差計にて白色度を
測定し、画像解析装置（×１００ 倍）にて粒径３０μ
ｍ 以上のインキ個数を測定した。また、フロテーショ
ンリジェクトの消泡性を実施例１と同様に求め、排水処
理工程での泡トラブルの目安とした。各種脱墨剤の脱墨
性能を表２に示す。Example 2 This example is an example in which a deinking agent is added separately in the pulping process and the kneading process. The binder of the printing ink is styrene acrylic, and the amount of printing ink is 2.4g/m2.
After shredding PPC waste paper (100%) into 2 x 5 cm pieces, put a certain amount of it into a tabletop disintegrator, and add water, 0.3% caustic soda (based on the raw material), and the deinking agent shown in Table 2 (based on the raw material). material)
After adding 0.1% and disintegrating at 45°C for 20 minutes at a pulp concentration of 5%, aging treatment was performed at 45°C for 60 minutes. After that, it was dehydrated to 22% in a high-speed dehydrator, and the resulting mixture was 0.2% caustic soda (based on raw materials), 1.0% sodium silicate No. 3 (based on raw materials),
30% hydrogen peroxide (based on the raw material) 1.0% and the deinking agent shown in Table 2 (based on the raw material) 0.1% were added, and the rotation speed was 200 r.
Kneading treatment was performed using a PM twin-screw lab kneader. Then, add water to dilute to 4% and disintegrate again for 30 seconds using a tabletop disintegrator. The slurry was diluted to 1% with water and then subjected to flotation treatment at 30°C for 10 minutes. After the pulp slurry after flotation was concentrated to a concentration of 4% using an 80 mesh wire, water was added to dilute it to a concentration of 1%, and a pulp sheet was produced using a Tappy standard paper machine. The whiteness of the obtained pulp sheet was measured using a colorimeter, and the particle size was 30 μm using an image analyzer (×100 magnification).
The number of inks equal to or greater than m was measured. In addition, the defoaming property of the flotation reject was determined in the same manner as in Example 1, and was used as a measure of foam trouble in the wastewater treatment process. Table 2 shows the deinking performance of various deinking agents.
【００３３】[0033]
【表３】[Table 3]
【００３４】[0034]
【表４】[Table 4]
【００３５】実施例３
本実施例は脱墨剤のパルピング工程一括添加の例である
。印刷インキのバインダーがポリエステル系であり、印
刷インキ量が ３．０ｇ／ｍ２のＣＰＯ古紙（１００
％）を２×５ｃｍに細断後、その一定量を卓上離解機に
入れ、その中に水及び苛性ソーダ（対原料）０．３ ％
、表３に示す脱墨剤（対原料）０．１％、その中に水及
び苛性ソーダ（対原料）１．０ ％、珪酸ソーダ３号
（対原料）１．０％、３０％過酸化水素（対原料）１．
５ ％、表３に示す脱墨剤（対原料）０．２ ％を加え
、パルプ濃度１５％、４５℃で２０分間離解した後、５
５℃にて １２０分間熟成処理を行った。その後、高速
脱水機で２２％まで脱水し、回転速度３００ｒｐｍのラ
ボデスパーザーでディスパージング処理を行った。その
後、水を加えて４％まで希釈し、卓上離解機で再度３０
秒離解する。そのスラリーを水で１％に希釈した後、３
０℃にて１０分間フロテーション処理を施した。フロテ
ーション後のパルプスラリーを８０メッシュワイヤーで
４％濃度まで濃縮後、水を加えて１％濃度に希釈し、タ
ッピースタンダード抄紙機にてパルプシートを作製した
。得られたパルプシートを測色色差計にて白色度を測定
し、画像解析装置（×１００ 倍）にて粒径３０μｍ
以上のインキ個数を測定した。また、フロテーションリ
ジェクトの消泡性を実施例１と同様に求め、排水処理工
程での泡トラブルの目安とした。各種脱墨剤の脱墨性能
を表３に示す。Example 3 This example is an example of adding a deinking agent all at once during the pulping process. The binder of the printing ink is polyester, and the amount of printing ink is 3.0g/m2.
%) into 2 x 5 cm pieces, put a certain amount of it into a tabletop disintegrator, and add water and 0.3% caustic soda (based on raw materials).
, 0.1% of the deinking agent (based on the raw material) shown in Table 3, 1.0% of water and caustic soda (based on the raw material), and sodium silicate No. 3
(based on raw materials) 1.0%, 30% hydrogen peroxide (based on raw materials) 1.
5% and 0.2% of the deinking agent shown in Table 3 (relative to the raw material), and after disintegrating at 45°C for 20 minutes at a pulp concentration of 15%,
Aging treatment was performed at 5°C for 120 minutes. Thereafter, the water was dehydrated to 22% using a high-speed dehydrator, and a dispersing treatment was performed using a lab desparser with a rotation speed of 300 rpm. After that, add water to dilute to 4%, and use a tabletop disintegrator again to 30%.
Disintegrate in seconds. After diluting the slurry to 1% with water,
Flotation treatment was performed at 0°C for 10 minutes. After the pulp slurry after flotation was concentrated to a concentration of 4% using an 80 mesh wire, water was added to dilute it to a concentration of 1%, and a pulp sheet was produced using a Tappy standard paper machine. The whiteness of the obtained pulp sheet was measured using a colorimeter, and the particle size was determined to be 30 μm using an image analyzer (×100 times).
The number of inks above was measured. In addition, the defoaming property of the flotation reject was determined in the same manner as in Example 1, and was used as a measure of foam trouble in the wastewater treatment process. Table 3 shows the deinking performance of various deinking agents.
【００３６】[0036]
【表５】[Table 5]
【００３７】実施例４
本実施例は脱墨剤のパルピング工程とディスパージング
工程分割添加の例である。印刷インキのバインダーがポ
リエステル系であり、印刷インキ量が３．０ｇ／ｍ２の
ＣＰＯ古紙（１００ ％）を２×５ｃｍに細断後、その
一定量を卓上離解機に入れ、その中に水及び苛性ソーダ
（対原料）０．３ ％、表４に示す脱墨剤（対原料）０
．１％を加え、パルプ濃度１５％、４５℃で２０分離解
した後、５５℃にて １２０分間熟成処理を行った。そ
の後、高速脱水機で２２％まで脱水し、苛性ソーダ（対
原料）０．７ ％、珪酸ソーダ３号（対原料）１．０
％、３０％過酸化水素（対原料）１．５ ％、表４に示
す脱墨剤（対原料）０．１ ％を添加した後、回転速度
３００ｒｐｍのラボデスパーザーでデスパージング処理
を行った。その後、水を加えて４％まで希釈し、卓上離
解機で再度３０秒離解する。そのスラリーを水で１％に
希釈した後、３０℃にて１０分間フロテーション処理を
施した。
フロテーション後のパルプスラリーを８０メッシュワイ
ヤーで４％濃度まで濃縮後、水を加えて１％濃度に希釈
し、タッピースタンダード抄紙機にてパルプシートを作
製した。得られたパルプシートを測色色差計にて白色度
を測定し、画像解析装置（×１００ 倍）にて粒径３０
μｍ 以上のインキ個数を測定した。また、フロテーシ
ョンリジェクトの消泡性を実施例１と同様に求め、排水
処理工程での泡トラブルの目安とした。各種脱墨剤の脱
墨性能を表４に示す。Example 4 This example is an example in which a deinking agent is added separately in the pulping process and the dispersing process. The binder of the printing ink is polyester, and the amount of printing ink is 3.0 g/m2.CPO waste paper (100%) is shredded into 2 x 5 cm pieces, and a certain amount of it is placed in a tabletop disintegrator, and water and Caustic soda (based on raw materials) 0.3%, deinking agent shown in Table 4 (based on raw materials) 0
．． After adding 1% and disintegrating at 45°C for 20 minutes at a pulp concentration of 15%, aging treatment was performed at 55°C for 120 minutes. After that, it was dehydrated to 22% in a high-speed dehydrator, resulting in 0.7% caustic soda (based on raw materials) and 1.0% sodium silicate (based on raw materials).
%, 30% hydrogen peroxide (based on the raw material) 1.5%, and the deinking agent shown in Table 4 (based on the raw material) 0.1% were added, and then desparging treatment was performed using a lab despurser with a rotation speed of 300 rpm. . Then, add water to dilute to 4% and disintegrate again for 30 seconds using a tabletop disintegrator. The slurry was diluted to 1% with water and then subjected to flotation treatment at 30°C for 10 minutes. After the pulp slurry after flotation was concentrated to a concentration of 4% using an 80 mesh wire, water was added to dilute it to a concentration of 1%, and a pulp sheet was produced using a Tappy standard paper machine. The whiteness of the obtained pulp sheet was measured using a colorimeter, and the particle size was determined using an image analyzer (×100 times).
The number of inks of μm or more was measured. In addition, the defoaming property of the flotation reject was determined in the same manner as in Example 1, and was used as a measure of foam trouble in the wastewater treatment process. Table 4 shows the deinking performance of various deinking agents.
【００３８】[0038]
【表６】[Table 6]
【００３９】[0039]
【表７】[Table 7]
【００４０】実施例５
本実施例は脱墨剤のパルピング工程とニーディング工程
分割添加の例である。印刷インキのバインダーがスチレ
ンアクリル系であり、印刷インキ量が ３．２ｇ／ｍ２
のＰＰＣ古紙（１００ ％）を２×５ｃｍに細断後、そ
の一定量を卓上離解機に入れ、その中に水及び苛性ソー
ダ（対原料）０．３ ％、表５に示す脱墨剤を所定量加
え、パルプ濃度５％、４５℃で２０分離解した後、４５
℃にて６０分間熟成処理を行った。その後、高速脱水機
で２２％まで脱水し、苛性ソーダ（対原料）０．２ ％
、珪酸ソーダ３号（対原料）１．０ ％、３０％過酸化
水素（対原料）１．０ ％、表５に示す脱墨剤を所定量
添加し、回転速度２００ｒｐｍの２軸型ラボニーダーで
ニーディング処理を行った。その後、水を加えて４％ま
で希釈し、卓上離解機で再度３０秒離解する。そのスラ
リーを水で１％に希釈した後、３０℃にて１０分間フロ
テーション処理を施した。フロテーション後のパルプス
ラリーを８０メッシュワイヤーで４％濃度まで濃縮後、
水を加えて１％濃度に希釈し、タッピースタンダード抄
紙機にてパルプシートを作製した。得られたパルプシー
トを測色色差計にて白色度を測定し、画像解析装置（×
１００ 倍）にて粒径３０μｍ 以上のインキ個数を測
定した。また、フロテーションリジェクトの消泡性を実
施例１と同様に求め、排水処理工程での泡トラブルの目
安とした。
各種脱墨剤の脱墨性能を表６に示す。Example 5 This example is an example in which a deinking agent is added separately in the pulping process and the kneading process. The binder of the printing ink is styrene acrylic, and the amount of printing ink is 3.2g/m2.
After shredding PPC waste paper (100%) into 2 x 5 cm pieces, put a certain amount of it into a tabletop disintegrator, and add water, 0.3% caustic soda (based on the raw material), and the deinking agent shown in Table 5. After adding a fixed amount and disintegrating at 45°C for 20 minutes at a pulp concentration of 5%, 45
Aging treatment was performed at ℃ for 60 minutes. After that, it is dehydrated to 22% in a high-speed dehydrator, and the caustic soda (based on raw materials) is 0.2%.
, 1.0% sodium silicate No. 3 (based on the raw material), 1.0% 30% hydrogen peroxide (based on the raw material), and a specified amount of the deinking agent shown in Table 5 were added, and the mixture was mixed in a twin-screw lab kneader at a rotation speed of 200 rpm. Kneading treatment was performed. Then, add water to dilute to 4% and disintegrate again for 30 seconds using a tabletop disintegrator. The slurry was diluted to 1% with water and then subjected to flotation treatment at 30°C for 10 minutes. After concentrating the pulp slurry after flotation to a concentration of 4% using an 80 mesh wire,
Water was added to dilute it to a concentration of 1%, and a pulp sheet was produced using a Tappy standard paper machine. The whiteness of the obtained pulp sheet was measured using a colorimeter, and an image analysis device (×
The number of inks with a particle size of 30 μm or more was measured at a magnification of 100 times. In addition, the defoaming property of the flotation reject was determined in the same manner as in Example 1, and was used as a measure of foam trouble in the wastewater treatment process. Table 6 shows the deinking performance of various deinking agents.
【００４１】[0041]
【表８】[Table 8]
【００４２】[0042]
【表９】[Table 9]
【００４３】[0043]
【表１０】[Table 10]
【００４４】上記に示した如く、本発明の一般式（１）
で表され、且つ溶解度パラメーター値が ９．０〜１
１．８の範囲にある化合物を必須成分として含有する脱
墨剤を、ＯＡ古紙又はその配合品を脱墨する際に使用す
ることにより、白色度向上、粗大インキ低減、フロテー
ションリジェクトの消泡性において、優れた効果を発揮
する。As shown above, the general formula (1) of the present invention
and the solubility parameter value is 9.0 to 1
By using a deinking agent containing a compound in the range of 1.8 as an essential component when deinking OA waste paper or its combination products, it improves whiteness, reduces coarse ink, and defoams flotation rejects. It has excellent effects on sex.
【００４５】更に、本発明の脱墨剤をパルピング工程と
それ以降の工程へ分割添加することにより、より高品質
の脱墨パルプを得ることが可能となった。Furthermore, by adding the deinking agent of the present invention in portions to the pulping process and subsequent processes, it has become possible to obtain deinked pulp of higher quality.
Claims (4)
、Ｒ は平均炭素数１〜８のアルキル基、アルケニル基
、アシル基又はアリール基、ＡＯは炭素数２〜４のアル
キレンオキサイド、ｍ は平均で１〜６である。）で表
され、且つ溶解度パラメーター値が ９．０〜１１．８
の範囲にある化合物を必須成分として含有する脱墨剤。Claim 1: General formula (1) RO(AO)mH (1) (wherein R is an alkyl group, alkenyl group, acyl group, or aryl group having an average carbon number of 1 to 8, and AO is a carbon number of 2 to 4 alkylene oxide, m is 1 to 6 on average), and the solubility parameter value is 9.0 to 11.8.
A deinking agent containing as an essential component a compound within the range of .
古紙又はその配合品の脱墨に用いることを特徴とする脱
墨方法。[Claim 2] The compound according to Claim 1 is administered to office (OA).
A deinking method characterized in that it is used for deinking waste paper or its combination products.
前工程）とパルピング工程以降の工程（後工程）へ分割
添加することを特徴とする脱墨方法。3. The deinking agent according to claim 1 is used in a pulping process (
A deinking method characterized by adding the ink separately to the previous process) and the process after the pulping process (post process).
／９０〜９０／１０（重量比）である請求項４記載の脱
墨方法。Claim 4: The addition ratio of the deinking agent is pre-process/post-process = 10.
5. The deinking method according to claim 4, wherein the ratio is /90 to 90/10 (weight ratio).
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7304991A JP2931429B2 (en) | 1991-04-05 | 1991-04-05 | Deinking agent and deinking method |
| DE1992609118 DE69209118T2 (en) | 1991-04-05 | 1992-04-03 | Decolorization composition and decolorization process |
| EP19920105786 EP0507325B1 (en) | 1991-04-05 | 1992-04-03 | Deinking composition and deinking method |
| CA 2065101 CA2065101C (en) | 1991-04-05 | 1992-04-03 | Deinking composition and deinking method |
| ES92105786T ES2084860T3 (en) | 1991-04-05 | 1992-04-03 | DECENTING COMPOUND AND DECENTING METHOD. |
| KR1019920005645A KR950014522B1 (en) | 1991-04-05 | 1992-04-04 | Deinking composition |
| US08/314,000 US5585339A (en) | 1991-04-05 | 1994-09-28 | Deinking composition and deinking method |
| US08/313,887 US5643409A (en) | 1991-04-05 | 1994-09-28 | Method for deinking wastepaper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7304991A JP2931429B2 (en) | 1991-04-05 | 1991-04-05 | Deinking agent and deinking method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04308291A true JPH04308291A (en) | 1992-10-30 |
| JP2931429B2 JP2931429B2 (en) | 1999-08-09 |
Family
ID=13507126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7304991A Expired - Fee Related JP2931429B2 (en) | 1991-04-05 | 1991-04-05 | Deinking agent and deinking method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2931429B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008121138A (en) * | 2006-11-10 | 2008-05-29 | Kao Corp | Method for producing deinked pulp |
-
1991
- 1991-04-05 JP JP7304991A patent/JP2931429B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008121138A (en) * | 2006-11-10 | 2008-05-29 | Kao Corp | Method for producing deinked pulp |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2931429B2 (en) | 1999-08-09 |
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