CN116289310A - Safe low-chlorine paper cationic rosin size for food contact and preparation method thereof - Google Patents
Safe low-chlorine paper cationic rosin size for food contact and preparation method thereof Download PDFInfo
- Publication number
- CN116289310A CN116289310A CN202211665882.4A CN202211665882A CN116289310A CN 116289310 A CN116289310 A CN 116289310A CN 202211665882 A CN202211665882 A CN 202211665882A CN 116289310 A CN116289310 A CN 116289310A
- Authority
- CN
- China
- Prior art keywords
- parts
- paper
- chloride
- chlorine
- rosin size
- 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.)
- Pending
Links
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 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 title claims abstract description 74
- 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 title claims abstract description 74
- 125000002091 cationic group Chemical group 0.000 title claims abstract description 36
- 235000013305 food Nutrition 0.000 title claims abstract description 35
- 239000000460 chlorine Substances 0.000 title claims abstract description 29
- 229910052801 chlorine Inorganic materials 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title abstract description 19
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 36
- 229920005610 lignin Polymers 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000002563 ionic surfactant Substances 0.000 claims abstract description 27
- 239000003381 stabilizer Substances 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 229920001661 Chitosan Polymers 0.000 claims description 30
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 claims description 24
- 229940035048 sorbitan monostearate Drugs 0.000 claims description 24
- 239000000244 polyoxyethylene sorbitan monooleate Substances 0.000 claims description 22
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 22
- 229920000053 polysorbate 80 Polymers 0.000 claims description 22
- -1 solominium a Chemical compound 0.000 claims description 22
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 16
- 239000000194 fatty acid Substances 0.000 claims description 16
- 229930195729 fatty acid Natural products 0.000 claims description 16
- 239000001587 sorbitan monostearate Substances 0.000 claims description 13
- 235000011076 sorbitan monostearate Nutrition 0.000 claims description 13
- 239000003093 cationic surfactant Substances 0.000 claims description 11
- 239000001818 polyoxyethylene sorbitan monostearate Substances 0.000 claims description 11
- 235000010989 polyoxyethylene sorbitan monostearate Nutrition 0.000 claims description 11
- 238000006136 alcoholysis reaction Methods 0.000 claims description 10
- 238000006116 polymerization reaction Methods 0.000 claims description 10
- 230000006196 deacetylation Effects 0.000 claims description 9
- 238000003381 deacetylation reaction Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 7
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 6
- 150000004665 fatty acids Chemical class 0.000 claims description 5
- 150000005215 alkyl ethers Chemical class 0.000 claims description 4
- 125000005211 alkyl trimethyl ammonium group Chemical group 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- 229930006000 Sucrose Natural products 0.000 claims description 3
- OTPBAANTTKRERC-UHFFFAOYSA-N benzyl(dodecyl)azanium;chloride Chemical compound Cl.CCCCCCCCCCCCNCC1=CC=CC=C1 OTPBAANTTKRERC-UHFFFAOYSA-N 0.000 claims description 3
- KXHPPCXNWTUNSB-UHFFFAOYSA-M benzyl(trimethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CC1=CC=CC=C1 KXHPPCXNWTUNSB-UHFFFAOYSA-M 0.000 claims description 3
- SXPWTBGAZSPLHA-UHFFFAOYSA-M cetalkonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 SXPWTBGAZSPLHA-UHFFFAOYSA-M 0.000 claims description 3
- 229960000228 cetalkonium chloride Drugs 0.000 claims description 3
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 3
- 229930182478 glucoside Natural products 0.000 claims description 3
- 239000005720 sucrose Substances 0.000 claims description 3
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 claims description 2
- CFHQDOBIRREYNN-UHFFFAOYSA-M 1-methylpyridin-1-ium-2-carbaldehyde;chloride Chemical compound [Cl-].C[N+]1=CC=CC=C1C=O CFHQDOBIRREYNN-UHFFFAOYSA-M 0.000 claims description 2
- JZBMYBNBWANHKO-UHFFFAOYSA-M 3-hydroxypropyl-dimethyl-propylazanium;chloride Chemical compound [Cl-].CCC[N+](C)(C)CCCO JZBMYBNBWANHKO-UHFFFAOYSA-M 0.000 claims description 2
- 241000220479 Acacia Species 0.000 claims description 2
- JMHWNJGXUIJPKG-UHFFFAOYSA-N CC(=O)O[SiH](CC=C)OC(C)=O Chemical class CC(=O)O[SiH](CC=C)OC(C)=O JMHWNJGXUIJPKG-UHFFFAOYSA-N 0.000 claims description 2
- ORAWFNKFUWGRJG-UHFFFAOYSA-N Docosanamide Chemical compound CCCCCCCCCCCCCCCCCCCCCC(N)=O ORAWFNKFUWGRJG-UHFFFAOYSA-N 0.000 claims description 2
- 239000004166 Lanolin Chemical class 0.000 claims description 2
- 235000010643 Leucaena leucocephala Nutrition 0.000 claims description 2
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 claims description 2
- 125000005907 alkyl ester group Chemical group 0.000 claims description 2
- YSJGOMATDFSEED-UHFFFAOYSA-M behentrimonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCCCCCC[N+](C)(C)C YSJGOMATDFSEED-UHFFFAOYSA-M 0.000 claims description 2
- 229960000686 benzalkonium chloride Drugs 0.000 claims description 2
- UREZNYTWGJKWBI-UHFFFAOYSA-M benzethonium chloride Chemical class [Cl-].C1=CC(C(C)(C)CC(C)(C)C)=CC=C1OCCOCC[N+](C)(C)CC1=CC=CC=C1 UREZNYTWGJKWBI-UHFFFAOYSA-M 0.000 claims description 2
- 229960001950 benzethonium chloride Drugs 0.000 claims description 2
- XIWFQDBQMCDYJT-UHFFFAOYSA-M benzyl-dimethyl-tridecylazanium;chloride Chemical class [Cl-].CCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 XIWFQDBQMCDYJT-UHFFFAOYSA-M 0.000 claims description 2
- 239000005018 casein Substances 0.000 claims description 2
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 claims description 2
- 235000021240 caseins Nutrition 0.000 claims description 2
- IQDGSYLLQPDQDV-UHFFFAOYSA-N dimethylazanium;chloride Chemical class Cl.CNC IQDGSYLLQPDQDV-UHFFFAOYSA-N 0.000 claims description 2
- REZZEXDLIUJMMS-UHFFFAOYSA-M dimethyldioctadecylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCCCCCC REZZEXDLIUJMMS-UHFFFAOYSA-M 0.000 claims description 2
- 239000004664 distearyldimethylammonium chloride (DHTDMAC) Substances 0.000 claims description 2
- CDIPRYKTRRRSEM-UHFFFAOYSA-M docosyl(trimethyl)azanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCCCCCCCCCC[N+](C)(C)C CDIPRYKTRRRSEM-UHFFFAOYSA-M 0.000 claims description 2
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 claims description 2
- 229940039717 lanolin Drugs 0.000 claims description 2
- 235000019388 lanolin Nutrition 0.000 claims description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 2
- 239000001593 sorbitan monooleate Substances 0.000 claims description 2
- 235000011069 sorbitan monooleate Nutrition 0.000 claims description 2
- 229940035049 sorbitan monooleate Drugs 0.000 claims description 2
- SFVFIFLLYFPGHH-UHFFFAOYSA-M stearalkonium chloride Chemical class [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 SFVFIFLLYFPGHH-UHFFFAOYSA-M 0.000 claims description 2
- 125000003696 stearoyl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 239000003760 tallow Substances 0.000 claims description 2
- SZEMGTQCPRNXEG-UHFFFAOYSA-M trimethyl(octadecyl)azanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C SZEMGTQCPRNXEG-UHFFFAOYSA-M 0.000 claims description 2
- PPQDYOBQQWPTIS-UHFFFAOYSA-N 2-(diethylamino)acetamide Chemical compound CCN(CC)CC(N)=O PPQDYOBQQWPTIS-UHFFFAOYSA-N 0.000 claims 1
- MBKGOQHJIPZMEP-UHFFFAOYSA-N 2-(dimethylamino)propanamide Chemical compound CN(C)C(C)C(N)=O MBKGOQHJIPZMEP-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000004513 sizing Methods 0.000 abstract description 13
- 239000003795 chemical substances by application Substances 0.000 abstract description 9
- 239000002245 particle Substances 0.000 abstract description 9
- 150000001768 cations Chemical class 0.000 abstract description 4
- 230000001965 increasing effect Effects 0.000 abstract description 3
- 239000000123 paper Substances 0.000 description 40
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 36
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 32
- 238000003756 stirring Methods 0.000 description 27
- 239000004372 Polyvinyl alcohol Substances 0.000 description 25
- 229920002451 polyvinyl alcohol Polymers 0.000 description 25
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 21
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 16
- 239000000126 substance Substances 0.000 description 12
- QUUCYKKMFLJLFS-UHFFFAOYSA-N Dehydroabietan Natural products CC1(C)CCCC2(C)C3=CC=C(C(C)C)C=C3CCC21 QUUCYKKMFLJLFS-UHFFFAOYSA-N 0.000 description 8
- NFWKVWVWBFBAOV-UHFFFAOYSA-N Dehydroabietic acid Natural products OC(=O)C1(C)CCCC2(C)C3=CC=C(C(C)C)C=C3CCC21 NFWKVWVWBFBAOV-UHFFFAOYSA-N 0.000 description 8
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 8
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 8
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 8
- NFWKVWVWBFBAOV-MISYRCLQSA-N dehydroabietic acid Chemical compound OC(=O)[C@]1(C)CCC[C@]2(C)C3=CC=C(C(C)C)C=C3CC[C@H]21 NFWKVWVWBFBAOV-MISYRCLQSA-N 0.000 description 8
- 229940118781 dehydroabietic acid Drugs 0.000 description 8
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 8
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 8
- 239000012065 filter cake Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000011265 semifinished product Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000839 emulsion Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 238000003916 acid precipitation Methods 0.000 description 4
- 238000004945 emulsification Methods 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000001291 vacuum drying Methods 0.000 description 4
- 229920000881 Modified starch Polymers 0.000 description 3
- 239000004368 Modified starch Substances 0.000 description 3
- 241000269435 Rana <genus> Species 0.000 description 3
- 235000019426 modified starch Nutrition 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 239000011087 paperboard Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 229940051269 1,3-dichloro-2-propanol Drugs 0.000 description 1
- DEWLEGDTCGBNGU-UHFFFAOYSA-N 1,3-dichloropropan-2-ol Chemical compound ClCC(O)CCl DEWLEGDTCGBNGU-UHFFFAOYSA-N 0.000 description 1
- PWSUTMXURNAWNG-UHFFFAOYSA-N 2-(diethylamino)acetamide;octadecanoic acid Chemical compound CCN(CC)CC(N)=O.CCCCCCCCCCCCCCCCCC(O)=O PWSUTMXURNAWNG-UHFFFAOYSA-N 0.000 description 1
- SSZWWUDQMAHNAQ-UHFFFAOYSA-N 3-chloropropane-1,2-diol Chemical compound OCC(O)CCl SSZWWUDQMAHNAQ-UHFFFAOYSA-N 0.000 description 1
- KIWIERMKMQMNTD-UHFFFAOYSA-N C(CCCCCCCCCCCCCCCCC)(=O)O.CN(C)C(C(=O)N)C Chemical compound C(CCCCCCCCCCCCCCCCC)(=O)O.CN(C)C(C(=O)N)C KIWIERMKMQMNTD-UHFFFAOYSA-N 0.000 description 1
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 241000209094 Oryza Species 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 125000005037 alkyl phenyl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000005003 food packaging material Substances 0.000 description 1
- 125000003010 ionic group Chemical group 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 235000021056 liquid food Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 235000021485 packed food Nutrition 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 229960004793 sucrose Drugs 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/23—Lignins
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/62—Rosin; Derivatives thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/22—Agents rendering paper porous, absorbent or bulky
- D21H21/24—Surfactants
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
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Abstract
The invention discloses a safe low-chlorine food contact paper cationic rosin size and a preparation method thereof, wherein the safe low-chlorine food contact paper cationic rosin size comprises the following raw materials in parts by weight: 5-30 parts of modified phenolized lignin, 80-120 parts of ionic surfactant, 40-80 parts of nonionic surfactant, 10-50 parts of rosin, 1-10 parts of stabilizer and 100-150 parts of water, the safe low-chlorine paper cation rosin size for food contact prepared by the invention is safe and environment-friendly, meets the national food safety standards of paper for food contact, and in addition, the ring crush index of paper prepared by the paper cation size as a sizing agent is as high as 9.0 N.m/g, so that the paper strength is greatly enhanced, the Zeta potential of the paper is increased to 40mV, the paper is stored for 6 months without layering at 25 ℃, and the average particle size of the paper cation size is as low as 300nm.
Description
Technical Field
The invention belongs to the fields of polymer synthesis and papermaking chemicals, and particularly relates to a safe low-chlorine cationic rosin size for food contact paper and a preparation method thereof, wherein the classification number of the cationic rosin size is C08J 3/02.
Background
Food contact paper is a common solid, liquid food packaging material. Paper and paperboard and their products currently account for over 40% of the total packaging material. As a packaging material, it is required to have a certain mechanical strength, to be nontoxic, odorless, water-resistant, and oil-resistant, to have good properties, to not affect the flavor of packaged foods, to not allow harmful substances to migrate into foods, and to be free from corrosion upon contact with lactic acid or fatty acid, and therefore, a cationic rosin size, which is one of the main additives for food contact paper, is required to have a water-resistant and oil-resistant function, is more environmentally friendly and is required to be food-safe than a general cationic rosin size.
The cationic rosin size is a papermaking sizing agent with rosin as a main raw material, and is mainly used for internal sizing of papermaking pulp, so that the paper achieves overall balanced water resistance and oil resistance. The cationic rosin size is used as a paper additive for food contact, the performance of low chlorine is required to be met, most cationic rosin size products in the market at present adopt a high chlorine-containing emulsification system, so that the health of human beings is endangered, in addition, in the sizing process in the prior art, aluminum sulfate is often added, but the aluminum sulfate is easy to cause corrosiveness to paper making equipment, dirt, foam and other influences, the domestic paper making industry does a lot of work for realizing neutral and alkaline sizing, and the development of sizing agent varieties is also greatly advanced, but the problems of poor storage stability, low strength of the prepared paper and the like still exist at present.
Patent CN106758498B discloses a water-resistant and oil-resistant cationic dispersion rosin size, the rosin size prepared by the surfactant and the cationic rosin size has certain oil-resistant and water-resistant properties, but the stability of the rosin size is to be enhanced.
Patent CN103669109a discloses a preparation method of a papermaking sizing agent, which forms a multidimensional network structure by adding a cross-linking agent into collagen, so that both water resistance and storage stability are enhanced to some extent, but the problem of low strength of paper prepared from the sizing agent is not solved.
Disclosure of Invention
In order to solve the problems, the first aspect of the invention provides a safe low-chlorine food contact paper cationic rosin size, which comprises the following preparation raw materials in parts by weight: 5-30 parts of modified phenolized lignin, 80-120 parts of ionic surfactant, 40-80 parts of nonionic surfactant, 10-50 parts of rosin, 1-10 parts of stabilizer and 100-150 parts of water.
Further preferably, the safe low-chlorine food contact paper cationic rosin size comprises the following preparation raw materials in parts by weight: 15-25 parts of modified phenolized lignin, 90-110 parts of ionic surfactant, 50-70 parts of nonionic surfactant, 20-40 parts of rosin, 1-5 parts of stabilizer and 100-120 parts of water.
Further preferably, the safe low-chlorine food contact paper cationic rosin size comprises the following preparation raw materials in parts by weight: 20 parts of modified phenolized lignin, 100 parts of ionic surfactant, 60 parts of nonionic surfactant, 30 parts of rosin, 3 parts of stabilizer and 110 parts of water.
Further preferably, the rosin is maleic rosin.
Further preferably, the preparation raw material of the modified phenolated lignin comprises: sodium lignin sulfonate, phenol, sodium hydroxide, water, hydrochloric acid, dehydroabietic acid monoethyl diamide, diethylenetriamine and formaldehyde.
Preferably, the mass ratio of the ionic surfactant to the nonionic surfactant is (9-11): (5-7).
Further preferably, the mass ratio of the ionic surfactant to the nonionic surfactant is 10:6.
preferably, the ionic surfactant comprises at least one of alkyl trimethylammonium chloride, stearyl trimethylammonium chloride, lauryl trimethylammonium chloride, cetyl trimethylammonium chloride, tallow alkyl trimethylammonium chloride, behenyl trimethylammonium chloride, stearyl trimethylammonium bromide, solominium a, cetyl benzyl dimethylammonium chloride, trimethylbenzyl ammonium chloride, dodecyl benzyl ammonium chloride, polyquaternium-67 cationic surfactant, behenyl trimethylammonium bromide, distearyl dimethylammonium chloride, ditalloyl dimethylammonium chloride, dioctyl dimethylammonium chloride, benzalkonium chloride, alkyl dimethylaniline chloride, benzethonium chloride, stearyl dimethylbenzyl ammonium chloride, lanolin derivative quaternary ammonium salt, diethylaminoacetamide stearate, dimethylaminopropionamide stearate, behenamide propyl dimethylhydroxypropyl ammonium chloride, stearoyl cholamine formylmethyl pyridinium chloride.
Further preferably, the ionic surfactant comprises at least one of polyquaternium-67 cationic surfactant, cetyl benzyl dimethyl ammonium chloride, trimethyl benzyl ammonium chloride, dodecyl benzyl ammonium chloride, cetyl trimethyl ammonium chloride.
Further preferably, the ionic surfactant is a polyquaternium-67 cationic surfactant.
Preferably, the nonionic surfactant includes at least one of polyoxyalkylene ether, polyoxyalkylene alkyl ether, polyoxyalkylene fatty acid ester, polyoxyalkylene fatty acid diester, polyoxyalkylene resin acid ester, polyoxyalkylene alkylphenol, polyoxyalkylene alkylphenyl ether, polyoxyalkylene phenyl ether, polyoxyalkylene alkyl ester, polyoxyalkylene sorbitan monooleate, sorbitan monostearate, polyglycerin alkyl ether, polyglycerin fatty acid ester, sucrose fatty acid ester, fatty acid alkanolamide, alkyl glucoside, polyoxyalkylene fatty acid diphenyl ether.
Further preferably, the nonionic surfactant comprises at least one of polyoxyalkylene fatty acid diester, polyoxyalkylene fatty acid ester, polyoxyalkylene alkyl phenyl ether, polyoxyethylene sorbitan monooleate, sorbitan monostearate, sucrose fatty acid ester, and alkyl glucoside.
Further preferably, the nonionic surfactant is polyoxyethylene sorbitan monooleate and sorbitan monostearate.
Preferably, the nonionic surfactant is polyoxyethylene sorbitan monooleate and sorbitan monostearate, and the weight ratio of the polyoxyethylene sorbitan monooleate to the sorbitan monostearate is (2-5): (1-4).
Further preferably, the nonionic surfactant is polyoxyethylene sorbitan monooleate and sorbitan monostearate, and the weight ratio of the polyoxyethylene sorbitan monooleate to the sorbitan monostearate is (2-4): (1-3).
Further preferably, the nonionic surfactant is polyoxyethylene sorbitan monooleate and sorbitan monostearate, and the weight ratio of the polyoxyethylene sorbitan monooleate to the sorbitan monostearate is 3:2.
preferably, the stabilizer comprises at least one of casein, acacia, PVA and chitosan.
Preferably, the stabilizer is PVA and chitosan, and the weight ratio of the PVA to the chitosan is (1-5): 1.
further preferably, the stabilizer is PVA and chitosan, and the weight ratio of the PVA to the chitosan is (1-3): 1.
further preferably, the stabilizer is PVA and chitosan, and the weight ratio of the PVA to the chitosan is 2:1.
preferably, the PVA has a polymerization degree of 500-2000 and an alcoholysis degree of 75-95%.
Further preferably, the PVA has a polymerization degree of 1000 to 2000 and an alcoholysis degree of 80 to 90%.
Further preferably, the PVA has a polymerization degree of 1600 to 1800 and an alcoholysis degree of 87 to 89%.
Further preferably, the PVA has a degree of polymerization of 1700 and an alcoholysis degree of 88%.
Preferably, the weight average molecular weight of the chitosan is 20-40 ten thousand, and the deacetylation degree is 70-90%.
Further preferably, the weight average molecular weight of the chitosan is 20-30 ten thousand, and the deacetylation degree is 80-90%.
Further preferably, the chitosan has a weight average molecular weight of 25 ten thousand and a degree of deacetylation of 90%.
The invention provides a preparation method of a safe low-chlorine paper cationic rosin size for food contact, which comprises the following steps:
(1) Preparing modified phenolized lignin;
mixing and stirring sodium lignin sulfonate, phenol and sodium hydroxide, stirring at constant temperature for reaction, acidifying with hydrochloric acid, filtering, and repeatedly washing until no free phenol exists. And dissolving the filter cake by using a sodium hydroxide solution, repeating the steps of acid precipitation and hot water washing to thoroughly clean unreacted phenol, and carrying out vacuum drying and grinding on the cleaned filter cake to obtain the phenolized lignin.
Stirring the phenolized lignin and pyridine, adding dehydroabietic acid monoethyl diamide, diethylenetriamine and formaldehyde, mixing, and reacting for 2-4h to obtain the modified phenolized lignin.
(2) Stirring and mixing modified phenolated lignin, an ionic surfactant, a nonionic surfactant and a stabilizer according to parts by weight to obtain a semi-finished product;
mixing the semi-finished product with rosin according to parts by weight, stirring for 10-15 under the stirring condition of 150-200r/min, adding water to ensure that the solid content is 30-40%, adding the stirring speed to 300-400r/min, emulsifying at high temperature, performing an emulsion separation wind procedure, putting the materials into a cooling kettle through a cooler, and cooling.
The applicant found that the addition of the polyquaternium-67 cationic surfactant alone is prone to poor stability and also reduces the Zeta potential of the system, probably because carboxyl groups in rosin are easy to combine with the polyquaternium-67 cationic surfactant to form precipitates, so that the stability of emulsion is affected, and on the basis, the applicant limits the mass ratio of the polyquaternium-67 cationic surfactant to the nonionic surfactant to be (9-11): (5-7) to facilitate dispersion of the rosin size in cold water while also increasing its Zeta potential, presumably: due to the synergistic effect of the two, the interfacial film is more compact, the repulsive tendency among ionic groups is greatly weakened due to the chemical bond force, the interfacial film has high surface activity, agglomeration is avoided, the average particle size of particles in the system is larger, the stability of the system is further influenced, and on the basis, the applicant has unexpectedly found that the weight ratio of polyoxyethylene sorbitan monooleate to sorbitan monostearate is defined as (2-4): in the process (1-3), the HLB values of the two are enabled to be closer to the HLB value of rosin, so that the system is more stable, the average particle size of particles is reduced to 300nm, the Zeta potential of the system is further improved to 40mV unexpectedly, the rosin size is enabled not to generate layering phenomenon after 6 months at 25 ℃, and presumably, at the moment, the polyoxyethylene sorbitan monooleate and the sorbitan monostearate can be inserted between cationic surfactants, so that electrostatic repulsive force between head groups of the polyoxyethylene sorbitan monooleate and the sorbitan monostearate is weakened, the interface film is firmer, the size of formed micelles is also reduced, the Oryza curing rate is reduced, the particle size of emulsion is reduced, and the Zeta potential is improved.
When the molecular weight of the chitosan is limited to 20-30 ten thousand, the dosage of sizing agent can be reduced during sizing, and the strength of the sized paper can be improved, so that the ring pressure index is as high as 9.0 N.m/g, and the method is supposed to be as follows: at this time, the fluidity of the chitosan is proper, the chitosan enters the paper through the paper pores, the porosity among paper fibers is enhanced, the bonding strength in proper paper is further enhanced, in addition, the deacetylation degree is further limited to 80-90%, the storage stability of rosin size can be improved by unexpected discovery, the activity of the chitosan is stronger, the reaction rate is stabilized, the phenomenon of sudden aggregation is avoided, the stability is improved, the storage stability of the rosin size is enhanced, in addition, when the polymerization degree of polyvinyl alcohol is limited to 1000-2000 and the alcoholysis degree is 80-90%, the mass ratio of the two is (1-3): 1, the strength and the storage stability of the paper are further improved under the synergistic effect of the polyvinyl alcohol and the chitosan.
The beneficial effects are that:
(1) The Zeta potential of the safe low-chlorine food contact paper cationic rosin size prepared by the invention is increased to 40mV, the safe low-chlorine food contact paper cationic rosin size is not layered after being stored for 6 months at 25 ℃, and the average particle size of the safe low-chlorine food contact paper cationic rosin size is as low as 300nm.
(2) When the paper is prepared from the paper cationic rosin size, 3-chloro-1, 2-propanediol in the water extract is not more than 12ug/L, and 1, 3-dichloro-2-propanol (detection limit of 2 ug/L) is not detected, so that the paper meets the national food safety standard of the paper for food contact.
(3) The safe low-chlorine food contact paper cation rosin size prepared by the invention has lower dosage when being sized, and the ring pressure index of the paper is as high as 9.0 N.m/g, thus greatly enhancing the strength of the paper.
Examples
Example 1
The safe low-chlorine paper cationic rosin size for food contact comprises the following preparation raw materials in parts by weight: 20 parts of modified phenolized lignin, 100 parts of ionic surfactant, 60 parts of nonionic surfactant, 30 parts of rosin, 3 parts of stabilizer and 110 parts of water.
The preparation raw materials of the modified phenolized lignin comprise: sodium lignin sulfonate, commercially available from rana white, model DW3432, phenol, sodium hydroxide, water, hydrochloric acid, dehydroabietic acid monoethyl diamide, diethylenetriamine and formaldehyde.
The mass ratio of the ionic surfactant to the nonionic surfactant is 10:6.
the ionic surfactant is a polyquaternium-67 cationic surfactant, and is purchased from the American Dow chemical and is of the model of SoftCat SX-1300X.
The nonionic surfactant is polyoxyethylene sorbitan monooleate and sorbitan monostearate, which are both purchased from Guangdong Huana chemical industry Co.
The nonionic surfactant is polyoxyethylene sorbitan monooleate and sorbitan monostearate, and the weight ratio of the polyoxyethylene sorbitan monooleate to the sorbitan monostearate is 3:2.
the rosin is maleic rosin, and is purchased from Wuhan Ji chemical industry Co.
The stabilizer is PVA and chitosan, and the weight ratio of the PVA to the chitosan is 2:1.
the PVA has a degree of polymerization of 1700, an alcoholysis degree of 88%, and is available from BP17,
the chitosan has a weight average molecular weight of 25 ten thousand and a deacetylation degree of 90% and is purchased from Qingdao cloud biotechnology Co.
The second aspect of the embodiment provides a preparation method of a safe low-chlorine paper cationic rosin size for food contact, which comprises the following steps:
(1) Preparing modified phenolized lignin;
1.80g of sodium lignin sulfonate, 0.941g of phenol and 0.08g of sodium hydroxide are mixed and stirred, stirred at a constant temperature of 100 ℃ for reaction for 1.5h, acidified to a pH value of 2.5 by 1mol/L hydrochloric acid, filtered by suction and repeatedly washed until no free phenol exists. Dissolving the filter cake with 1mol/L sodium hydroxide solution, repeating the steps of acid precipitation and hot water washing to thoroughly clean unreacted phenol, and carrying out vacuum drying and grinding on the cleaned filter cake to obtain the phenolized lignin.
2.0g of phenolized lignin and 20mL of pyridine are stirred for 10min at a stirring speed of 200r/min, then 0.855g of dehydroabietic acid monoethyl diamide, 1.03g of diethylenetriamine and 0.76mL of formaldehyde are added and mixed at the same stirring speed under the condition of 90 ℃, and the modified phenolized lignin is obtained after 3h of reaction.
(2) Stirring modified phenolized lignin, an ionic surfactant, a nonionic surfactant and a stabilizer according to parts by weight at a stirring speed of 300r/min to obtain a semi-finished product;
mixing the semi-finished product with rosin according to parts by weight, adding water under the stirring condition of 180r/min to ensure that the solid content is 35%, then adding the stirring speed to 380r/min, and then placing the materials into a cooling kettle through a cooler after the procedures of high-temperature emulsification and emulsion separation, and cooling to obtain the rosin modified starch.
Example 2
The safe low-chlorine paper cationic rosin size for food contact comprises the following preparation raw materials in parts by weight: 20 parts of modified phenolized lignin, 90 parts of ionic surfactant, 50 parts of nonionic surfactant, 30 parts of rosin, 3 parts of stabilizer and 110 parts of water.
The preparation raw materials of the modified phenolized lignin comprise: sodium lignin sulfonate, commercially available from rana white, model DW3432, phenol, sodium hydroxide, water, hydrochloric acid, dehydroabietic acid monoethyl diamide, diethylenetriamine and formaldehyde.
The mass ratio of the ionic surfactant to the nonionic surfactant is 9:5.
the ionic surfactant is a polyquaternium-67 cationic surfactant, and is purchased from the American Dow chemical and is of the model of SoftCat SX-1300X.
The nonionic surfactant is polyoxyethylene sorbitan monooleate and sorbitan monostearate, which are both purchased from Guangdong Huana chemical industry Co.
The nonionic surfactant is polyoxyethylene sorbitan monooleate and sorbitan monostearate, and the weight ratio of the polyoxyethylene sorbitan monooleate to the sorbitan monostearate is 2:1.
the rosin is maleic rosin, and is purchased from Wuhan Ji chemical industry Co.
The stabilizer is PVA and chitosan, and the weight ratio of the PVA to the chitosan is 2:1.
the PVA has a degree of polymerization of 1700, an alcoholysis degree of 88%, and is available from BP17,
the chitosan has a weight average molecular weight of 25 ten thousand and a deacetylation degree of 90% and is purchased from Qingdao cloud biotechnology Co.
The second aspect of the embodiment provides a preparation method of a safe low-chlorine paper cationic rosin size for food contact, which comprises the following steps:
(1) Preparing modified phenolized lignin;
1.80g of sodium lignin sulfonate, 0.941g of phenol and 0.08g of sodium hydroxide are mixed and stirred, stirred at a constant temperature of 100 ℃ for reaction for 1.5h, acidified to a pH value of 2.5 by 1mol/L hydrochloric acid, filtered by suction and repeatedly washed until no free phenol exists. Dissolving the filter cake with 1mol/L sodium hydroxide solution, repeating the steps of acid precipitation and hot water washing to thoroughly clean unreacted phenol, and carrying out vacuum drying and grinding on the cleaned filter cake to obtain the phenolized lignin.
2.0g of phenolized lignin and 20mL of pyridine are stirred for 10min at a stirring speed of 200r/min, then 0.855g of dehydroabietic acid monoethyl diamide, 1.03g of diethylenetriamine and 0.76mL of formaldehyde are added and mixed at the same stirring speed under the condition of 90 ℃, and the modified phenolized lignin is obtained after 3h of reaction.
(2) Stirring modified phenolized lignin, an ionic surfactant, a nonionic surfactant and a stabilizer according to parts by weight at a stirring speed of 300r/min to obtain a semi-finished product;
mixing the semi-finished product with rosin according to parts by weight, adding water under the stirring condition of 180r/min to ensure that the solid content is 35%, then adding the stirring speed to 380r/min, and then placing the materials into a cooling kettle through a cooler after the procedures of high-temperature emulsification and emulsion separation, and cooling to obtain the rosin modified starch.
Example 3
The safe low-chlorine paper cationic rosin size for food contact comprises the following preparation raw materials in parts by weight: 20 parts of modified phenolized lignin, 100 parts of ionic surfactant, 60 parts of nonionic surfactant, 30 parts of rosin, 3 parts of stabilizer and 110 parts of water.
The preparation raw materials of the modified phenolized lignin comprise: sodium lignin sulfonate, commercially available from rana white, model DW3432, phenol, sodium hydroxide, water, hydrochloric acid, dehydroabietic acid monoethyl diamide, diethylenetriamine and formaldehyde.
The mass ratio of the ionic surfactant to the nonionic surfactant is 10:6.
the ionic surfactant is a polyquaternium-67 cationic surfactant, and is purchased from the American Dow chemical and is of the model of SoftCat SX-1300X.
The nonionic surfactant is polyoxyethylene sorbitan monooleate and sorbitan monostearate, which are both purchased from Guangdong Huana chemical industry Co.
The nonionic surfactant is polyoxyethylene sorbitan monooleate and sorbitan monostearate, and the weight ratio of the polyoxyethylene sorbitan monooleate to the sorbitan monostearate is 4:3.
the rosin is maleic rosin, and is purchased from Wuhan Ji chemical industry Co.
The stabilizer is PVA and chitosan, and the weight ratio of the PVA to the chitosan is 1:1.
the PVA has a degree of polymerization of 1700, an alcoholysis degree of 88%, and is available from BP17,
the chitosan has a weight average molecular weight of 25 ten thousand and a deacetylation degree of 90% and is purchased from Qingdao cloud biotechnology Co.
The second aspect of the embodiment provides a preparation method of a safe low-chlorine paper cationic rosin size for food contact, which comprises the following steps:
(1) Preparing modified phenolized lignin;
1.80g of sodium lignin sulfonate, 0.941g of phenol and 0.08g of sodium hydroxide are mixed and stirred, stirred at a constant temperature of 100 ℃ for reaction for 1.5h, acidified to a pH value of 2.5 by 1mol/L hydrochloric acid, filtered by suction and repeatedly washed until no free phenol exists. Dissolving the filter cake with 1mol/L sodium hydroxide solution, repeating the steps of acid precipitation and hot water washing to thoroughly clean unreacted phenol, and carrying out vacuum drying and grinding on the cleaned filter cake to obtain the phenolized lignin.
2.0g of phenolized lignin and 20mL of pyridine are stirred for 10min at a stirring speed of 200r/min, then 0.855g of dehydroabietic acid monoethyl diamide, 1.03g of diethylenetriamine and 0.76mL of formaldehyde are added and mixed at the same stirring speed under the condition of 90 ℃, and the modified phenolized lignin is obtained after 3h of reaction.
(2) Stirring modified phenolized lignin, an ionic surfactant, a nonionic surfactant and a stabilizer according to parts by weight at a stirring speed of 300r/min to obtain a semi-finished product;
mixing the semi-finished product with rosin according to parts by weight, adding water under the stirring condition of 180r/min to ensure that the solid content is 35%, then adding the stirring speed to 380r/min, and then placing the materials into a cooling kettle through a cooler after the procedures of high-temperature emulsification and emulsion separation, and cooling to obtain the rosin modified starch.
Comparative example 1
The mass ratio of the ionic surfactant to the nonionic surfactant is changed to 15:7, the remainder being the same as in example 1.
Comparative example 2
The weight ratio of the nonionic surfactant polyoxyethylene sorbitan monooleate to the sorbitan monostearate is changed to 7:5, the remainder being the same as in example 1.
Comparative example 3
The procedure of example 1 was followed except that the polymerization degree of PVA was changed to 500, the alcoholysis degree was changed to 99%, and the PVA was obtained from BF-05.
Comparative example 4
The deacetylation degree of chitosan is changed to 95%, the chitosan is purchased from Qingdao Bozhi Hui biosciences, and the weight ratio of the stabilizer PVA to the chitosan is 6:1 and the rest are the same as in example 1.
Evaluation of Performance
(1) Testing of average particle size and zeta potential: measured by a Markov Zeta potential and particle size analyzer (Nano-ZS 90).
(2) Stability test: the rosin adhesives obtained in the examples and the comparative examples are hermetically packaged, placed in a constant temperature oven at 25 ℃ for standing and observation, and the layering time is recorded.
(3) Fully and uniformly stirring needle pulp with the mass concentration of 7wt%, respectively adding the rosin sizing agents of the examples and the comparative examples into the needle pulp, wherein the addition amount of the sizing agents is 1.1wt% of the weight of the paper, uniformly stirring after adding the sizing agents, and then carrying out sheet making on the paper, wherein the quantitative paper is 30g/m 2 The paper was dried and cured, and then cooled to room temperature, and the ring crush indexes of examples and comparative examples were measured in accordance with GB/T2679.8-1995. The measurement values are as follows.
TABLE 1
Claims (10)
1. The safe low-chlorine paper cationic rosin size for food contact is characterized by comprising the following raw materials in parts by weight: 5-30 parts of modified phenolized lignin, 80-120 parts of ionic surfactant, 40-80 parts of nonionic surfactant, 10-50 parts of rosin, 1-10 parts of stabilizer and 100-150 parts of water.
2. The safe low-chlorine food contact paper cationic rosin size of claim 1, wherein the mass ratio of ionic surfactant to nonionic surfactant is (9-11): (5-7).
3. A paper cationic rosin size for use in contact with safe low-chlorine food according to claim 1, wherein the ionic surfactant comprises at least one of alkyl trimethylammonium chloride, stearyl trimethylammonium chloride, lauryl trimethylammonium chloride, cetyl trimethylammonium chloride, tallow alkyl trimethylammonium chloride, behenyl trimethylammonium chloride, stearyl trimethylammonium bromide, solominium a, cetyl benzyl dimethylammonium chloride, trimethyl benzyl ammonium chloride, dodecyl benzyl ammonium chloride, polyquaternium-67 cationic surfactant, behenyl trimethylammonium bromide, distearyl dimethylammonium chloride, dicontiyl dimethylammonium chloride, dioctyl dimethylammonium chloride, benzalkonium chloride, alkyl dimethylammonium chloride, benzethonium chloride, stearyl dimethylbenzyl ammonium chloride, lanolin derivative quaternary ammonium salt, diethyl amino acetamide stearate, dimethyl amino propionamide stearate, behenamide propyl dimethylhydroxypropyl ammonium chloride, stearoyl cholamine formyl methyl pyridinium chloride.
4. The paper cationic rosin size of claim 1, wherein the nonionic surfactant comprises at least one of a polyoxyalkylene ether, a polyoxyalkylene alkyl ether, a polyoxyalkylene fatty acid ester, a polyoxyalkylene fatty acid diester, a polyoxyalkylene resin acid ester, a polyoxyalkylene alkylphenol, a polyoxyalkylene alkylphenyl ether, a polyoxyalkylene phenyl ether, a polyoxyalkylene alkyl ester, a polyoxyalkylene sorbitan monooleate, a sorbitan monostearate, a polyglyceryl alkyl ether, a polyglyceryl fatty acid ester, a sucrose fatty acid ester, a fatty acid alkanolamide, an alkyl glucoside, and a polyoxyalkylene fatty acid diphenyl ether.
5. The safe low-chlorine food contact paper cationic rosin size of claim 4, wherein the nonionic surfactant is polyoxyethylene sorbitan monooleate and sorbitan monostearate in a weight ratio of (2-5): (1-4).
6. The safe low-chlorine food contact paper cationic rosin size of claim 1, wherein the stabilizer comprises at least one of casein, acacia, PVA, and chitosan.
7. The safe low-chlorine food contact paper cationic rosin size of claim 6, wherein the stabilizer is PVA and chitosan in a weight ratio of (1-5): 1.
8. the cationic rosin size of claim 7, wherein the PVA has a degree of polymerization of 500 to 2000 and an alcoholysis of 75 to 95%.
9. The paper cationic rosin size of claim 7, wherein the chitosan has a weight average molecular weight of 20 to 40 tens of thousands and a degree of deacetylation of 70 to 90%.
10. A process for preparing a safe low chlorine food contact paper cationic rosin size of claim 1, comprising the steps of:
(1) Preparing modified phenolized lignin;
(2) Mixing modified phenolized lignin, ionic surfactant, nonionic surfactant, stabilizer, water and rosin.
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| CN106758498A (en) * | 2016-12-21 | 2017-05-31 | 南昌市龙然实业有限公司 | Water resistant oil resistant Cationic dispersed rosin size |
| CN110396858A (en) * | 2019-08-05 | 2019-11-01 | 淮北市硕华机械设备有限公司 | A kind of moisture-proof damping fluting medium and preparation method thereof |
| CN110373134A (en) * | 2019-08-11 | 2019-10-25 | 淮北市硕华机械设备有限公司 | A kind of corrugated board bonding modified epoxy acrylic ester glue and preparation method thereof |
| CN114606797A (en) * | 2021-04-22 | 2022-06-10 | 南昌市龙然实业有限公司 | Rosin sizing agent for food contact paper and application thereof |
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