WO2021215358A1 - セルロース系ポリマーの包装方法および輸送方法、並びにセルロース系ポリマーの包装物 - Google Patents
セルロース系ポリマーの包装方法および輸送方法、並びにセルロース系ポリマーの包装物 Download PDFInfo
- Publication number
- WO2021215358A1 WO2021215358A1 PCT/JP2021/015675 JP2021015675W WO2021215358A1 WO 2021215358 A1 WO2021215358 A1 WO 2021215358A1 JP 2021015675 W JP2021015675 W JP 2021015675W WO 2021215358 A1 WO2021215358 A1 WO 2021215358A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- packaging bag
- cellulosic polymer
- packaging
- filled
- less
- Prior art date
Links
- 229920000642 polymer Polymers 0.000 title claims abstract description 134
- 238000000034 method Methods 0.000 title claims abstract description 85
- 229920002678 cellulose Polymers 0.000 title abstract description 47
- 239000001913 cellulose Substances 0.000 title abstract description 46
- 238000012856 packing Methods 0.000 title abstract description 4
- 238000004806 packaging method and process Methods 0.000 claims abstract description 237
- 230000004888 barrier function Effects 0.000 claims abstract description 36
- 239000007789 gas Substances 0.000 claims abstract description 33
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000001301 oxygen Substances 0.000 claims abstract description 31
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 31
- 230000003068 static effect Effects 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 24
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 19
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 18
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 18
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 5
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 3
- 235000010980 cellulose Nutrition 0.000 description 39
- 239000002585 base Substances 0.000 description 19
- 238000011049 filling Methods 0.000 description 17
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 16
- 239000000123 paper Substances 0.000 description 16
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 12
- 238000006467 substitution reaction Methods 0.000 description 12
- 239000002655 kraft paper Substances 0.000 description 11
- 239000007864 aqueous solution Substances 0.000 description 10
- 239000002994 raw material Substances 0.000 description 10
- 238000007254 oxidation reaction Methods 0.000 description 9
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical group OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 8
- 229920003174 cellulose-based polymer Polymers 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 8
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 7
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Chemical group OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 229920001131 Pulp (paper) Polymers 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Substances CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000006266 etherification reaction Methods 0.000 description 5
- 229960001031 glucose Drugs 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- -1 hydroxypropyl Chemical group 0.000 description 4
- 239000002121 nanofiber Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 3
- 125000000129 anionic group Chemical group 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000008103 glucose Substances 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000218631 Coniferophyta Species 0.000 description 2
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 150000007942 carboxylates Chemical group 0.000 description 2
- 238000003508 chemical denaturation Methods 0.000 description 2
- 238000007385 chemical modification Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 229910052809 inorganic oxide Inorganic materials 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920006284 nylon film Polymers 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 239000005033 polyvinylidene chloride Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 2
- 125000001731 2-cyanoethyl group Chemical group [H]C([H])(*)C([H])([H])C#N 0.000 description 1
- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- PTHCMJGKKRQCBF-UHFFFAOYSA-N Cellulose, microcrystalline Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC)C(CO)O1 PTHCMJGKKRQCBF-UHFFFAOYSA-N 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000875 Dissolving pulp Polymers 0.000 description 1
- 239000003035 EU approved thickener Substances 0.000 description 1
- 240000000797 Hibiscus cannabinus Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- 229920000168 Microcrystalline cellulose Polymers 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 125000003172 aldehyde group Chemical group 0.000 description 1
- WQZGKKKJIJFFOK-UHFFFAOYSA-N alpha-D-glucopyranose Natural products OCC1OC(O)C(O)C(O)C1O WQZGKKKJIJFFOK-UHFFFAOYSA-N 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000551 dentifrice Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000003682 fluorination reaction Methods 0.000 description 1
- 235000003132 food thickener Nutrition 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 229920003063 hydroxymethyl cellulose Polymers 0.000 description 1
- 229940031574 hydroxymethyl cellulose Drugs 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 235000015243 ice cream Nutrition 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 239000008141 laxative Substances 0.000 description 1
- 229940125722 laxative agent Drugs 0.000 description 1
- TWNIBLMWSKIRAT-VFUOTHLCSA-N levoglucosan Chemical group O[C@@H]1[C@@H](O)[C@H](O)[C@H]2CO[C@@H]1O2 TWNIBLMWSKIRAT-VFUOTHLCSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000005517 mercerization Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- CXHHBNMLPJOKQD-UHFFFAOYSA-N methyl hydrogen carbonate Chemical group COC(O)=O CXHHBNMLPJOKQD-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000008108 microcrystalline cellulose Substances 0.000 description 1
- 235000019813 microcrystalline cellulose Nutrition 0.000 description 1
- 229940016286 microcrystalline cellulose Drugs 0.000 description 1
- 210000001724 microfibril Anatomy 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical group OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 230000026731 phosphorylation Effects 0.000 description 1
- 238000006366 phosphorylation reaction Methods 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000009849 vacuum degassing Methods 0.000 description 1
- 238000009489 vacuum treatment Methods 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
- B65B31/024—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for wrappers or bags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D29/00—Sacks or like containers made of fabrics; Flexible containers of open-work, e.g. net-like construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/02—Bags or like containers made of paper and having structural provision for thickness of contents with laminated walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
- B65D81/2023—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in a flexible container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2069—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere
- B65D81/2084—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere in a flexible container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
Definitions
- the present invention relates to a method for packaging a cellulosic polymer and its application.
- Cellulose-derived polymers such as hydroxyethyl cellulose, carboxymethyl cellulose, hydroxymethyl cellulose, and hydroxypropyl cellulose are used in various fields such as medicine and food because of their high safety.
- carboxymethyl cellulose is used in food thickeners and emulsion stabilizers such as ice cream, as well as in non-food products such as dentifrices, laxatives, diet tablets, water-based inks, surfactants and paper products. in use.
- cellulosic polymers are generally stored in powder form.
- the viscosity of the cellulosic polymer solution stored for a long period of time is significantly lower than the viscosity of the cellulosic polymer solution before storage, and cannot serve as a viscosity modifier. there were.
- Patent Document 1 proposes a storage method that suppresses a decrease in viscosity due to oxidation or the like by keeping the oxygen concentration in the packaging bag below a certain level.
- Patent Document 1 proposes a method of reducing the residual oxygen concentration in the packaging bag as much as possible by performing nitrogen substitution in order to reduce the decrease in viscosity as much as possible.
- the packaging bag has a bulge due to internal pressure or the like, which causes problems such as difficulty in packing and difficulty in loading the packaging bags with each other during transportation.
- one of the problems to be solved is to provide a packaging method suitable for transporting a cellulosic polymer or the like. Further, one of the further problems to be solved is to provide a packaging method suitable for transportation and the like while suppressing a decrease in viscosity of the cellulosic polymer.
- the invention presented in the present disclosure can be grasped as several aspects from various aspects, and includes, for example, the following as means for solving the problem. That is, the present invention is the following [1] to [20].
- a method for packaging a cellulosic polymer in which a cellulosic polymer is filled in a packaging bag having a gas barrier property and the packaging bag is sealed.
- Condition (1) The cellulosic polymer is filled in the packaging bag having a gas barrier property.
- Condition (2) Adjust the oxygen concentration in the packaging bag to 0.8% or less and seal.
- Condition (3) When the packaging bag filled with the cellulosic polymer is installed so that the longest long side L is horizontal, the depth D of the packaging bag from the horizontal plane and the long side L are 6.
- [5] The method for packaging a cellulosic polymer according to any one of the above [1] to [4], wherein the depth D of the packaging bag filled with the cellulosic polymer is less than 130 mm.
- the packaging bag having a gas barrier property having a coefficient of static friction on the outermost layer surface of 0.2 to 0.5 and a coefficient of dynamic friction of 0.15 to 0.35 is filled with a cellulosic polymer.
- [7] The method for packaging a cellulosic polymer according to the above [6], wherein the smoothness of the outermost layer of the packaging bag satisfies the range of 2 to 10 seconds.
- [11] The cellulose according to any one of the above [1] to [10], which comprises vacuum-treating the inside of the packaging bag and then substituting with nitrogen to adjust the oxygen concentration to 0.8% or less.
- Packaging method for based polymers [12] The method for packaging a cellulosic polymer according to any one of the above [1] to [11], wherein the internal pressure in the packaging bag is 85 KPa or less.
- a cellulosic polymer package comprising a sealed packaging bag and a cellulosic polymer filled in the packaging bag, wherein the following conditions (1) to (3): Condition (1): The packaging bag having a gas barrier property is filled with a cellulosic polymer. Condition (2): Adjusting the oxygen concentration in the packaging bag to 0.8% or less and sealing. Condition (3): When the packaging bag filled with the cellulosic polymer is installed so that the longest long side L is horizontal, the depth D of the packaging bag from the horizontal plane and the long side L are 6.
- the packaging bag has a layer structure of two or three or more layers, the outermost layer of the packaging bag is a paper base material, and at least one of the inner bag layers inside the outermost layer is gas.
- a packaging method suitable for transporting a cellulosic polymer or the like it is possible to provide a packaging method suitable for transporting a cellulosic polymer while suppressing a decrease in viscosity of the cellulosic polymer.
- a cellulosic polymer package suitable for transportation and the like it is possible to provide a package suitable for transporting a cellulosic polymer while suppressing a decrease in viscosity of the cellulosic polymer.
- FIG. 1 is a packaging bag filled with a cellulose-based polymer, and the packaging bag is installed so that the longest long side L is horizontal to the horizontal installation surface (horizontal plane), and D is from the horizontal plane. Represents the depth, and W represents the short side in the width direction perpendicular to L.
- AA to BB means “AA or more and BB or less” (here, “AA” and “BB” are arbitrary numerical values. Shows).
- the units of the lower limit and the upper limit are the same as the units immediately after the latter (that is, “BB” in this case) unless otherwise specified.
- the expression “X and / or Y” means both X and Y, or one of them.
- the gas concentration is indicated by a volume ratio unless otherwise specified.
- the unit “%" for oxygen concentration indicates the percentage of oxygen volume ratio (Vol / Vol).
- One embodiment of the present invention is a method for packaging a cellulosic polymer, in which a cellulosic polymer is filled in a packaging bag having a gas barrier property and the packaging bag is sealed.
- a method that satisfies the following conditions (1) to (3) is provided (hereinafter, also referred to as a first embodiment).
- Condition (1) A cellulosic polymer is filled in a packaging bag having a gas barrier property.
- Condition (2) Adjust the oxygen concentration in the packaging bag to 0.8% or less and seal.
- the cellulosic polymer is not particularly limited as long as it is a cellulosic-derived compound, but a chemically modified one is preferable, and such a chemical modification means that a functional group is added to the pulp.
- the chemical modification is preferably anionic modification, that is, the chemically modified cellulose preferably has an anionic group.
- the anionic group include an acid group such as a carboxyl group, a carboxyl group-containing group, a phosphoric acid group, a phosphoric acid group-containing group, and a sulfate ester group.
- Examples of the carboxyl group-containing group include -COOH group, -R-COOH (R is an alkylene group having 1 to 3 carbon atoms), and -OR-COOH (R is an alkylene group having 1 to 3 carbon atoms). Be done.
- Examples of the phosphoric acid group-containing group include a polyphosphoric acid group, a phosphorous acid group, a phosphonic acid group, and a polyphosphonic acid group. Depending on the reaction conditions, these acid groups may be introduced in the form of salts (for example, carboxylate groups (-COOM, M is a metal atom)).
- the chemical denaturation is preferably oxidation or etherification.
- Oxidation can be carried out as known.
- a method of oxidizing the raw material pulp in water using an oxidizing agent in the presence of an N-oxyl compound and a substance selected from the group consisting of bromide, iodide and a mixture thereof can be mentioned.
- the primary hydroxyl group at the C6 position of the glucopyranose ring on the surface of cellulose is selectively oxidized to generate a group selected from the group consisting of an aldehyde group, a carboxyl group, and a carboxylate group.
- an ozone oxidation method can be mentioned.
- the hydroxyl groups at at least the 2nd and 6th positions of the glucopyranose ring constituting the cellulose are oxidized, and the cellulose chain is decomposed.
- carboxymethylation is preferable.
- Carboxymethylation can be carried out, for example, by a method in which raw material pulp as a bottoming material is marcelled and then etherified.
- particularly carboxymethylated cellulose can prevent a decrease in viscosity when made into an aqueous solution, and can be used as a packaging bag suitable for transportation and the like.
- the obtained mercerized cellulose (also referred to as alkali cellulose) obtained after treating the cellulose with an alkali (mercerization) is used as a carboxymethylating agent (also referred to as an etherifying agent). It can be produced by reacting with.
- cellulose means a polysaccharide having a structure in which D-glucopyranose (simply referred to as “glucose residue” or “anhydrous glucose”) is linked by ⁇ -1,4 bonds.
- D-glucopyranose simply referred to as "glucose residue” or “anhydrous glucose”
- Cellulose is generally classified into natural cellulose, regenerated cellulose, fine cellulose, microcrystalline cellulose excluding amorphous regions, etc., based on the origin, manufacturing method, and the like. In the present invention, any of these celluloses can be used as a raw material for mercerized cellulose.
- Examples of natural cellulose include bleached pulp or unbleached pulp (bleached wood pulp or unbleached wood pulp); linter, purified linter; cellulose produced by microorganisms such as acetic acid bacteria.
- the raw material of bleached pulp or unbleached pulp is not particularly limited, and examples thereof include wood, cotton, straw, bamboo, hemp, jute, and kenaf.
- the method for producing bleached pulp or unbleached pulp is not particularly limited, and a mechanical method, a chemical method, or a method in which the two are combined may be used.
- the bleached pulp or unbleached pulp classified according to the production method includes, for example, mechanical pulp (thermomechanical pulp (TMP), crushed wood pulp), chemical pulp (conifer unbleached sulphite pulp (NUSP), conifer bleached sulphite pulp (NBSP). ) And the like, unbleached coniferous kraft pulp (NUKP), bleached coniferous kraft pulp (NBKP), unbleached broadleaf kraft pulp (LUKP), kraft pulp such as broadleaf bleached kraft pulp (LBKP)) and the like.
- dissolved pulp may be used in addition to the pulp for papermaking. Dissolving pulp is chemically refined pulp, which is mainly dissolved in chemicals and used as a main raw material for artificial fibers, cellophane, and the like.
- the degree of carboxymethyl substitution per anhydrous glucose unit of carboxymethylated cellulose is preferably in the range of 0.2 to 1.5, more preferably in the range of 0.3 to 1.2, and in the range of 0.5 to 1.0. Is even more preferable.
- the degree of carboxymethyl substitution is less than 0.2, the viscosity of carboxymethylated cellulose does not develop so much when it is used as an aqueous solution, and the effect of the present invention is limited. If the degree of carboxymethyl substitution is more than 1.5, even the packaging method of the present invention tends to cause a decrease in viscosity, which is not suitable.
- the anhydrous glucose unit means individual anhydrous glucose (glucose residue) constituting cellulose.
- the degree of carboxymethyl substitution (also referred to as the degree of etherification) is the ratio of hydroxyl groups in the glucose residues constituting cellulose that are substituted with carboxymethyl ether groups (carboxymethyl per glucose residue). The number of ether groups) is shown.
- the degree of carboxymethyl substitution may be abbreviated as DS.
- the method for measuring the degree of carboxymethyl substitution is as follows: Weigh approximately 2.0 g of the sample and place it in an Erlenmeyer flask with a 300 mL stopper. 100 mL of a solution prepared by adding 100 mL of special grade concentrated nitric acid to 1000 mL of methanol is added, and the mixture is shaken for 3 hours to convert the salt of carboxymethyl cellulose (CMC) into H-CMC (hydrogen type carboxymethyl cellulose). Weigh 1.5 to 2.0 g of the absolutely dry H-CMC and place it in an Erlenmeyer flask with a 300 mL stopper.
- CMC carboxymethyl cellulose
- H-CMC hydrogen type carboxymethyl cellulose
- chemically modified pulp-like cellulose may be used as it is, or the pulp-like material may be powdered by pulverization or the like. Further, the pulp-like material may be defibrated and a dried product such as microfibril-like cellulose or nanofiber-like cellulose may be used.
- Cellulose nanofibers can be produced by applying a strong shearing force after the cellulose raw material is left undenatured or chemically modified.
- the cellulose raw material may be unmodified or chemically modified, but it is more preferable that the cellulose raw material is chemically modified.
- Cellulose nanofibers produced using chemically modified cellulose raw materials have a uniform fiber length and diameter as compared with cellulose nanofibers produced using unmodified cellulose raw materials, and thus have higher dispersibility in water. It is presumed to be stable and exert a better effect.
- the method of chemical denaturation is not particularly limited, and for example, oxidation, etherification, phosphorylation, esterification, silane coupling, fluorination, cationization and the like can be performed. Of these, oxidation, carboxymethylation, or cationization using an N-oxyl compound is preferable, and carboxymethylation or oxidation is particularly preferable.
- the dry solid content when filled in the packaging bag is preferably 60% by weight or more, more preferably 70% by weight or more, and 80% by weight. % Or more is more preferable.
- the amount of dry solids is within this range, the amount of dissociation of parallel moisture in the package is reduced, so that deterioration of the cellulosic polymer due to moisture can be suppressed.
- the packaging bag can be used without particular limitation as long as it has a gas barrier property.
- having a gas barrier property means having a function of suppressing the permeation of oxygen, moisture, etc.
- aluminum having a high gas barrier property, polyacrylonitrile, polyvinyl alcohol, etc. , Nylon film with a coating film of polyvinylidene chloride resin, ethylene-vinyl alcohol copolymer, olefin polymer, olefin-polycarboxylic acid copolymer, and silicon oxide, aluminum oxide on a plastic substrate.
- the packaging bag is made of a transparent barrier film having a vapor-deposited layer of an inorganic oxide such as, and a barrier film having a vapor-deposited layer of a metal such as aluminum.
- the outermost layer of the packaging bag is preferably one having high strength and not easily torn, and a paper base material is preferable.
- a paper base material include kraft paper.
- the outermost layer is a paper base material and the inner layer has a gas barrier layer, and such a gas barrier layer is used as a separate bag as an inner bag.
- the outermost layer of the paper base material may be subjected to an attachment process (for example, a laminating process) before use. It is more preferable to use the gas barrier layer as an inner bag from the viewpoint of ease of handling and the like.
- the packaging bag used in the first embodiment of the present invention is preferably ultraviolet-impermeable or light-shielding from the viewpoint of maintaining the quality of the cellulosic polymer to be filled.
- the method of filling the packaging bag with the cellulosic polymer is not particularly limited, and the packaging bag may be filled so that the cellulosic polymer is appropriately filled. If the filling amount is too large, it becomes difficult to adjust the oxygen concentration and the condition (3) described later with respect to the first embodiment. Therefore, the filling amount of the cellulosic polymer is 99% or less of the internal volume of the packaging bag. Is preferable, 95% or less is more preferable, and 90% or less is further preferable.
- the packaging bag is a packaging bag having an outer bag (or outer layer) as a paper base material and an inner bag (or inner layer) of a gas barrier layer as the outermost layer described above
- the inner bag is filled with a cellulose-based polymer. Then, it may be packed in an outer bag, or it may be filled with a cellulose-based polymer after putting the inner bag in the outer bag in advance.
- the adjustment of the oxygen concentration in the packaging bag is not particularly limited, but is preferably performed after filling with the cellulose-based polymer.
- the adjustment of the oxygen concentration in the packaging bag is not particularly limited, but is preferably performed after filling with the cellulose-based polymer.
- 1) a method of vacuuming the inside of the packaging bag, and 2) packaging examples thereof include a method of replacing the inside of the bag with nitrogen, 3) a method of replacing the nitrogen in the packaging bag after vacuuming, and 4) a method of enclosing an oxygen absorber in the packaging bag.
- the method of evacuating the inside of the packaging bag and then substituting with nitrogen is more preferable in the first embodiment of the present invention because it can suppress the aggregation of cellulosic polymers.
- the oxygen concentration in the packaging bag it is important to adjust the oxygen concentration in the packaging bag to 0.8% or less and seal the packaging. If the oxygen concentration is more than 0.8%, the cellulosic polymer is likely to deteriorate, and there is a concern that the viscosity of the cellulosic polymer may decrease when it is made into an aqueous solution.
- the oxygen concentration is preferably 0.75% or less, more preferably 0.7% or less, still more preferably 0.6% or less.
- the lower limit of the oxygen concentration is not limited, but from the viewpoint of workability and internal pressure adjustment at the time of nitrogen substitution, 0.1% or more is preferable, 0.2% or more is more preferable, and more than 0.3% is further preferable.
- the internal pressure inside the packaging bag is preferably 85 kPa or less, and particularly preferably the internal pressure inside the gas barrier layer is 85 kPa or less. If the internal pressure exceeds 85 kPa, the expansion of the packaging bag with respect to the filling becomes large, so that it becomes difficult to stack the packaging bags in a laminated state, which causes a problem during transportation.
- the internal pressure of such a packaging bag is more preferably 80 kPa or less.
- the method for adjusting the internal pressure inside the packaging bag is not particularly limited.
- the amount of nitrogen inflow when nitrogen flows in after vacuum treatment By appropriately adjusting the internal pressure indicated value from the original pressure, the internal pressure inside the packaging bag can be appropriately adjusted.
- the packaging bag filled with a cellulosic polymer, adjusted in oxygen concentration, and sealed has a horizontal installation surface (referred to as a horizontal plane) so that its longest long side L is horizontal.
- a horizontal plane a horizontal installation surface
- FIG. 1 shows a packaging bag filled with a cellulosic polymer, which is installed on a horizontal plane so that the long side L is horizontal.
- the packaging bag filled with the cellulosic polymer is installed so as to be horizontal, and then the filling region is evenly filled along the horizontal plane before measuring the long side L and the depth D. It's important to.
- Such a long side L does not include the sealing port of the packaging bag and represents the length of only the filling area of the packaging bag.
- the long side L is preferably in the range of 700 mm or more and 1100 mm or less, more preferably 700 mm or more and 1000 mm or less, and further preferably 700 mm or more and 900 mm or less.
- the long side L of the packaging bag filled with the cellulosic polymer and the orthogonal short side W are preferably 400 mm or more and less than 700 mm, preferably 450 mm or more and 650 mm or less, and further preferably 450 mm or more and 600 mm or less.
- the depth D of the packaging bag filled with the cellulosic polymer is preferably less than 130 mm, more preferably 125 mm or less, and even more preferably 120 mm or less.
- the packaging bag filled with the cellulosic polymer is appropriately balanced when laminated, and the lamination becomes easy. .. Further, when the long side L, the depth D, and the short side W of the packaging bag satisfy the above-mentioned ranges, the cellulosic polymer can be easily filled and the packaging bag can be easily laminated. Further, when the packaging bags are laminated and transported, imbalance in the laminated state due to vibration or the like is less likely to occur, which is important in the present invention.
- the packaging bags when the packaging bags are laminated, it is preferable to have a laminated state of 2 or more and 10 or less stages, and more preferably a laminated state of 2 or more and 8 or less stages. .. When the laminated state is within this range, the balance of the laminated state of the packaging bag can be made more appropriate.
- the outermost layer surface has a gas barrier property having a coefficient of static friction of 0.2 to 0.5 and a coefficient of dynamic friction of 0.15 to 0.35.
- a method for packaging a cellulosic polymer which comprises filling a packaging bag with a cellulosic polymer (hereinafter, also referred to as a second embodiment).
- the packaging bag can be used without particular limitation as long as it has a gas barrier property.
- having a gas barrier property means having a function of suppressing the permeation of oxygen, moisture, etc.
- aluminum having a high gas barrier property, polyacrylonitrile, polyvinyl alcohol, etc.
- the packaging bag is made of a transparent barrier film having a vapor-deposited layer of an inorganic oxide such as, and a barrier film having a vapor-deposited layer of a metal such as aluminum.
- the outermost layer of the packaging bag is preferably one having high strength and not easily torn, and a paper base material is preferable.
- a paper base material include kraft paper.
- the outermost layer is a paper base material and the inner layer has a gas barrier property layer, and such a gas barrier property layer is a separate bag as an inner bag.
- the outermost layer of the paper base material may be subjected to an attachment process (for example, a laminating process) before use. It is more preferable to use the gas barrier layer as an inner bag from the viewpoint of ease of handling and the like.
- the outermost layer surface of such a packaging bag has a coefficient of static friction in the range of 0.2 to 0.5, preferably in the range of 0.2 to 0.45, and preferably 0.2 to 0.45. More preferably, it is in the range of 0.4. Since the coefficient of static friction of the outermost layer surface is within this range, even when the packaging bag is filled with a cellulose-based polymer and the packaging bags are laminated on a pallet for transportation, the balance is lost and the packaging bag is less likely to fall. Since the frictional force is not too strong, it is easy to adjust the laminated state by sliding the packaging bag during lamination.
- the outermost layer surface of the packaging bag has a dynamic friction coefficient in the range of 0.15 to 0.35, preferably in the range of 0.2 to 0.35, and 0.22 to 0. It is more preferably in the range of 32. Since the dynamic friction coefficient of the outermost layer surface is within this range, even when the packaging bags are filled with a cellulose-based polymer and the packaging bags are laminated on a pallet for transportation, it is easy to slide the laminated packaging bags together. In addition, it is an appropriate range in which the packaging bag loses its balance and is less likely to fall.
- the coefficient of static friction and the coefficient of dynamic friction on the outermost surface of the packaging bag can be measured in accordance with JIS P8147.
- the outermost layer of the packaging bag preferably has a smoothness in the range of 2 to 10 seconds, more preferably in the range of 3 to 9 seconds, and further preferably in the range of 4 to 8 seconds according to the Oken method. .. Since the smoothness is within this range, the unevenness of the outermost layer surface is suitable for fall prevention and sliding movement when the packaging bag is filled with a cellulosic polymer and the packaging bags are laminated on a pallet for transportation. Can be balanced.
- the smoothness measurement by the Oken method can be performed in accordance with JIS P8155.
- the outermost layer of the packaging bag preferably satisfies the range of basis weight 50 to 100 g / m 2 , more preferably 60 to 100 g / m 2. It is more preferable to satisfy the range of 95 g / m 2.
- the outermost layer base material of the packaging bag satisfies the above range, even when the cellulosic polymer is filled, it becomes easy to exhibit the optimum balance as the outermost layer described above while maintaining the strength.
- Such measurement of basis weight can be performed in accordance with JIS P8124.
- the packaging bag used in the first embodiment of the present invention is preferably ultraviolet-impermeable or light-shielding from the viewpoint of maintaining the quality of the cellulosic polymer to be filled.
- a method for packaging a cellulosic polymer in which a cellulosic polymer is filled in a packaging bag having a gas barrier property and the packaging bag is sealed.
- Condition (4) The static friction coefficient of the outermost layer surface of the packaging bag satisfies the range of 0.2 to 0.5 and the dynamic friction coefficient of 0.15 to 0.35. How to meet.
- some aspects of the present invention may be a method such as a packaging method or a transportation method, but according to the present invention, a cellulose-based polymer using such a packaging method may be used.
- Packaging is provided.
- the following cellulosic polymer package is provided by the packaging method shown in the first embodiment.
- a cellulosic polymer package comprising a sealed packaging bag and a cellulosic polymer filled in the packaging bag, wherein the following conditions (1) to (3):
- Condition (1) A cellulosic polymer is filled in a packaging bag having a gas barrier property.
- Condition (2) Adjust the oxygen concentration in the packaging bag to 0.8% or less and seal.
- Condition (3) When the packaging bag filled with the cellulosic polymer is installed so that the longest side L is horizontal, the depth D of the packaging bag from the horizontal plane and the long side L are 6.1. Satisfying the relational expression of ⁇ L / D ⁇ 10, Meet the packaging.
- the following cellulosic polymer package is provided by the packaging method shown in the second embodiment.
- the packaging bag is a package having a coefficient of static friction on the outermost layer surface of 0.2 to 0.5 and a coefficient of dynamic friction of 0.15 to 0.35.
- the same as described in the first embodiment or the second embodiment can be adopted in the same manner. Further, it is also possible to obtain a cellulosic polymer package in which the technical matters shown in the first embodiment and the second embodiment are combined.
- Example 1-1 Packaging with carboxymethyl cellulose (manufactured by Nippon Paper Industries, Inc., product name: MAC500LC) unfilled (empty bag) with a length of 850 mm and a width of 565 mm, the outermost layer being a kraft paper base material, and the interior having a film base material.
- the bag was filled. After filling and deaeration in vacuum, nitrogen gas was injected to adjust the oxygen concentration in the package to 0.50% and the internal pressure reading value to be 70 kPa, and the sealing port was sealed.
- the obtained packaging bag was placed on a horizontal surface so that the contents of the packaging bag were evenly distributed in the filling area, and then the packaging bag was measured.
- the longest long side L was 760 mm and the depth D from the horizontal surface.
- Example 1-2 A packaging bag was obtained in the same manner as in Example 1-1 except that carboxymethyl cellulose (manufactured by Nippon Paper Industries, Ltd., product name: MAC350HC) was used.
- carboxymethyl cellulose manufactured by Nippon Paper Industries, Ltd., product name: MAC350HC
- Example 1-3 A packaging bag was obtained in the same manner as in Example 1 except that carboxymethyl cellulose (manufactured by Nippon Paper Industries, Ltd., product name: MAC800LC) was used.
- Example 1-1 A packaging bag was obtained in the same manner as in Example 1 except that the oxygen concentration in the package was 0.3% and the internal pressure indicated value was 90 kPa. The obtained packaging bag was placed on a horizontal surface, and the contents of the packaging bag were made even in the filling area, and then the packaging bag was measured. The longest long side L was 760 mm, and the depth D from the horizontal surface was It was 130 mm and had a short side W520 mm orthogonal to the long side L.
- the viscosity of the 1% aqueous solution immediately after filling with carboxymethyl cellulose of Examples 1-1 to 1-3 and Comparative Example 1-1 and after storage in a container at 50 ° C. for 1 month, 3 months and 6 months was measured.
- the method for adjusting the aqueous solution and the method for measuring the viscosity were carried out by the methods described below.
- the obtained packaging bags were laminated on a pallet in 4 rows and 6 layers, the laminated state was visually confirmed.
- ⁇ Adjustment of aqueous solution> Collect about 10 g of the sample with a precision balance.
- the sample is put into a beaker containing 880 ml of pure water using a dissolving stirrer, and the sample is gradually added while stirring and stirred for 3 hours.
- the pure water calculated from the water content is corrected so that the concentration becomes 1%.
- Viscosity change rate 1% aqueous solution of cellulosic polymer with 0 days elapsed (before packaging) 1% aqueous solution of cellulosic polymer stored at 50 ° C (1 month, 3 months, 6 months) in a container after packaging with respect to viscosity (viscosity 1) Viscosity (Viscosity 2)
- the rate of change in viscosity is calculated by the following equation (1). [(Viscosity 2-Viscosity 1) / Viscosity 1] ⁇ 100 (%) ... (1)
- the packed carboxymethyl cellulose of the packaging bags of Examples 1-1 to 1-3 can maintain a high viscosity after storage. Further, since the packaging bag has an excellent balance of internal pressure with respect to the strength of the packaging bag and does not expand, it is also excellent in balance at the time of stacking. On the other hand, the packaging bag of Comparative Example 1-1 has an excellent effect of maintaining the viscosity of carboxymethyl cellulose because the oxygen concentration is suppressed to a low level, but the internal pressure is high and the packaging bag is expanded and the balance in the laminated state is achieved. Is bad and is not suitable as a transportation form.
- Example 2-1 Carboxymethyl cellulose (manufactured by Nippon Paper Industries, Inc., product name: MAC500LC), the outermost layer is a kraft paper base material (surface static friction coefficient: 0.32, dynamic friction coefficient: 0.28, Oken type smoothness: 5 seconds, basis weight : 85 g / m 2 ), and a packaging bag having a film base material in the inner layer was filled. After filling, vacuum degassing, nitrogen gas was injected, the oxygen concentration in the package was adjusted to 0.50%, the internal pressure indicated value was 70 kPa, the sealing port was sealed, and carboxymethyl cellulose was filled. A packaging bag 2-1 was obtained.
- Example 2-2 Example 1 except that the outermost layer was changed to a kraft paper base material (surface static friction coefficient: 0.30, dynamic friction coefficient: 0.28, Oken type smoothness: 5 seconds, basis weight: 76 g / m 2). In the same manner as above, a packaging bag 2-2 filled with carboxymethyl cellulose was obtained.
- the outermost layer is a film base material (surface static friction coefficient: 0.12, dynamic friction coefficient: 0.1, Oken-type smoothness: unmeasurable, basis weight: 109 g / m 2) without using a kraft paper base material.
- a packaging bag 3 filled with carboxymethyl cellulose was obtained in the same manner as in Example 1 except that the above was changed.
- the viscosity of the 1% aqueous solution was measured immediately after filling with carboxymethyl cellulose of Examples 2-1 and 2-2 and after storage in a container at 50 ° C. for 1 month, 3 months and 6 months.
- the method for adjusting the aqueous solution, the method for measuring the viscosity, and the calculation of the viscosity change rate were carried out by the same methods as those shown for the first example group.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Food Science & Technology (AREA)
- Packages (AREA)
- Wrappers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
また、解決しようとする更なる課題の1つは、セルロース系ポリマーの粘度低下を抑制しつつ、さらに輸送等に適した包装方法を提供することにある。
〔2〕 下記条件(1)~(3)を満たすことを特徴とする、上記〔1〕に記載のセルロース系ポリマーの包装方法。
条件(1):ガスバリアー性を有する前記包装袋内に、セルロース系ポリマーを充填すること。
条件(2):前記包装袋内の酸素濃度を0.8%以下に調整し封止すること。
条件(3):セルロース系ポリマーを充填した前記包装袋を、最も長い長辺Lが水平になるように設置した際に、水平面からの包装袋の深さDと、長辺Lが、6.1≦L/D≦10の関係式を満たすこと。
〔3〕 セルロース系ポリマーを充填した前記包装袋の最も長い長辺Lが、700mm以上1100mm以下であることを特徴とする、上記〔1〕または〔2〕に記載のセルロース系ポリマーの包装方法。
〔4〕 セルロース系ポリマーを充填した前記包装袋の長辺Lと、直行する短辺Wが、400mm以上700mm未満であることを特徴とする、上記〔1〕~〔3〕のいずれか一項に記載のセルロース系ポリマーの包装方法。
〔5〕 セルロース系ポリマーを充填した前記包装袋の深さDが、130mm未満であることを特徴とする、上記〔1〕~〔4〕いずれか一項に記載のセルロース系ポリマーの包装方法。
〔6〕 最外層表面の静摩擦係数が0.2~0.5、且つ動摩擦係数0.15~0.35の範囲を満たすガスバリアー性を有する前記包装袋に、セルロース系ポリマーを充填することを特徴とする、上記〔1〕~〔5〕のいずれか一項に記載のセルロース系ポリマーの包装方法。
〔7〕 前記包装袋の最外層の平滑度が2~10秒の範囲を満たすことを特徴とする、上記〔6〕に記載のセルロース系ポリマーの包装方法。
〔8〕 前記包装袋の最外層が、紙基材であることを特徴とする、上記〔6〕または〔7〕に記載のセルロース系ポリマーの包装方法。
〔9〕 前記包装袋の最外層が、坪量50~100g/m2の範囲を満たすことを特徴とする、上記〔6〕~〔8〕のいずれか一項に記載のセルロース系ポリマーの包装方法。
〔10〕 前記セルロース系ポリマーが、カルボキシメチルセルロースであることを特徴とする、上記〔1〕~〔9〕いずれか一項に記載のセルロース系ポリマーの包装方法。
〔11〕 前記包装袋内を真空処理した後、窒素置換し酸素濃度を0.8%以下に調整することを特徴とする、上記〔1〕~〔10〕のいずれか一項に記載のセルロース系ポリマーの包装方法。
〔12〕 前記包装袋内の内圧が、85KPa以下であることを特徴とする、上記〔1〕~〔11〕のいずれか一項に記載のセルロース系ポリマーの包装方法。
〔13〕 上記〔1〕~〔12〕のいずれか一項に記載のセルロース系ポリマーの包装方法により得られた包装袋を、積層し、目的地まで輸送することを特徴とするセルロース系ポリマーの輸送方法。
〔14〕 前記包装袋を、2段以上10段以下の積層状態とすることを特徴とする、上記〔13〕に記載のセルロース系ポリマーの輸送方法。
〔15〕 密封された包装袋と、前記包装袋内に充填されたセルロース系ポリマーとを備える、セルロース系ポリマーの包装物であって、下記条件(1)~(3):
条件(1):ガスバリアー性を有する前記包装袋内に、セルロース系ポリマーを充填すること、
条件(2):前記包装袋内の酸素濃度を0.8%以下に調整し封止すること、
条件(3):セルロース系ポリマーを充填した前記包装袋を、最も長い長辺Lが水平になるように設置した際に、水平面からの包装袋の深さDと、長辺Lが、6.1≦L/D≦10の関係式を満たすこと、
を満たす、包装物。
〔16〕 前記包装袋は、最外層表面の静摩擦係数が0.2~0.5、且つ動摩擦係数0.15~0.35の範囲を満たす、上記〔15〕に記載のセルロース系ポリマーの包装物。
〔17〕 前記セルロース系ポリマーが、カルボキシメチルセルロースであることを特徴とする、上記〔15〕または〔16〕に記載のセルロース系ポリマーの包装物。
〔18〕 前記包装袋内の酸素濃度が、0.3%より大きく、0.8%以下であることを特徴とする、上記〔15〕~〔17〕のいずれか一項に記載のセルロース系ポリマーの包装物。
〔19〕 前記包装袋内の内圧が、85KPa以下であることを特徴とする、上記〔15〕~〔18〕のいずれか一項に記載のセルロース系ポリマーの包装物。
〔20〕 前記包装袋は2層または3層以上の層構造を有し、前記包装袋の最外層が紙基材であり、前記最外層の内側にある内袋層のうちの少なくとも一層がガスバリアー層である、上記〔15〕~〔19〕のいずれか一項に記載のセルロース系ポリマーの包装物。
また、本発明の一態様によれば、セルロース系ポリマーの粘度低下を抑制しつつ、セルロース系ポリマーを輸送等することに適した包装方法を提供することができる。
さらに、本発明の一態様によれば、輸送等に適したセルロース系ポリマーの包装物を提供することができる。
また、本発明の一態様によれば、セルロース系ポリマーの粘度低下を抑制しつつ、セルロース系ポリマーを輸送等することに適した包装物を提供することができる。
本発明の1つの実施形態として、ガスバリアー性を有する包装袋内にセルロース系ポリマーを充填し、前記包装袋を封止する、セルロース系ポリマーの包装方法であって、下記条件(1)~(3)を満たす方法が提供される(以下、第一実施形態ともいう。)。
条件(1):ガスバリアー性を有する包装袋内に、セルロース系ポリマーを充填すること。
条件(2):包装袋内の酸素濃度を0.8%以下に調整し封止すること。
条件(3):セルロース系ポリマーを充填した包装袋を、最も長い長辺Lが水平になるように設置した際に、水平な設置面(水平面)からの包装袋の深さDと、長辺Lが、6.1≦L/D≦10の関係式を満たすこと。
本発明の第一実施形態において、セルロース系ポリマーとはセルロース由来の化合物であれば特に限定されるものではないが、化学変性されたものが好ましく、そのような化学変性とはパルプに官能基を導入することであり、化学変性はアニオン変性であることが好ましい、すなわち化学変性セルロースはアニオン性基を有することが好ましい。アニオン性基としてはカルボキシル基、カルボキシル基含有基、リン酸基、リン酸基含有基、硫酸エステル基等の酸基が挙げられる。カルボキシル基含有基としては、-COOH基、-R-COOH(Rは炭素数が1~3のアルキレン基)、-O-R-COOH(Rは炭素数が1~3のアルキレン基)が挙げられる。リン酸基含有基としては、ポリリン酸基、亜リン酸基、ホスホン酸基、ポリホスホン酸基等が挙げられる。これらの酸基は反応条件によっては、塩の形態(例えばカルボキシレート基(-COOM、Mは金属原子))で導入されることもある。本発明において化学変性は酸化またはエーテル化が好ましい。
試料約2.0gを精秤して、300mL共栓付き三角フラスコに入れる。メタノール1000mLに特級濃硝酸100mLを加えた液100mLを加え、3時間振盪して、カルボキシメチルセルロースの塩(CMC)をH-CMC(水素型カルボキシメチルセルロース)に変換する。その絶乾H-CMCを1.5~2.0g精秤し、300mL共栓付き三角フラスコに入れる。80%メタノール15mLでH-CMCを湿潤し、0.1NNaOHを100mL加え、室温で3時間振盪する。指示薬として、フェノールフタレインを用いて、0.1N-H2SO4で過剰のNaOHを逆滴定し、次式によってカルボキシメチル置換度(DS値)を算出する。
A=[(100×F’-0.1N-H2SO4(mL)×F)×0.1]/(H-CMCの絶乾質量(g))
カルボキシメチル置換度=0.162×A/(1-0.058×A)
F’:0.1N-H2SO4のファクター
F:0.1N-NaOHのファクター。
本発明の第一実施形態において、包装袋はガスバリアー性有する包装袋であれば特に制限なく用いることができる。なお、本発明においてガスバリアー性を有するとは、酸素や水分等の透過を抑制できる機能を有することをいい、そのような包装袋としては、ガスバリアー性の高いアルミや、ポリアクリロニトリル、ポリビニルアルコール、ポリ塩化ビニリデン系樹脂のコーティング膜を有するナイロンフィルム、エチレン-ビニルアルコール共重合体、オレフィン系ポリマー、オレフィン-ポリカルボン酸共重合体、またプラスチック製の基材の上に、酸化ケイ素、酸化アルミニウム等の無機酸化物の蒸着層を設けた構成からなる透明バリア性フィルム、およびアルミニウム等の金属の蒸着層を設けたバリア性フィルムなどを用いた包装袋とすることが好ましい。
そのような紙基材としては、例えばクラフト紙が挙げられる。
包装袋内に、セルロース系ポリマーを充填する方法としては、特に制限されず、包装袋にセルロース系ポリマーが適切に充填されるように充填すればよい。なお、充填量が多すぎると、酸素濃度の調整や、第一実施形態に関し後述する条件(3)の調整などが難しくなるため、セルロース系ポリマーの充填量は包装袋内容積の、99%以下が好ましく、95%以下がより好ましく、90%以下がさらに好ましい。
包装袋内の酸素濃度の調整は、特に限定されないが、セルロース系ポリマーを充填後に行うことが好ましく、例えば、セルロース系ポリマーを充填した後、1)包装袋内を真空にする方法、2)包装袋内を窒素置換する方法、3)包装袋内を真空にした後、窒素置換する方法、4)包装袋内に酸素吸収剤を同封する方法、などが挙げられる。これらの方法の中では、包装袋内を真空にした後、窒素置換する方法が、セルロース系ポリマー同士の凝集を抑制できるため、本発明の第一実施形態においてより好適である。
本発明の第一実施形態においては、セルロース系ポリマーを充填し酸素濃度を調整、封止された包装袋は、その最も長い長辺Lが水平になるように、水平な設置面(水平面という)上に設置した際に、水平面からの包装袋の深さDと、長辺Lが、6.1≦L/D≦10の関係式を満たすことが重要である。
さらに当該包装袋を積層し輸送する際に、振動などによる積層状態のバランス欠如が起こりにくくなるため、本発明において重要である。
本発明の他の実施形態として、最外層表面の静摩擦係数が0.2~0.5、且つ動摩擦係数0.15~0.35の範囲を満たすガスバリアー性を有する包装袋に、セルロース系ポリマーを充填することを特徴とする、セルロース系ポリマーの包装方法が提供される(以下、第二実施形態ともいう)。
<包装袋>
本発明の第二実施形態において、包装袋はガスバリアー性有する包装袋であれば特に制限なく用いることができる。なお、本発明においてガスバリアー性を有するとは、酸素や水分等の透過を抑制できる機能を有することをいい、そのような包装袋としては、ガスバリアー性の高いアルミや、ポリアクリロニトリル、ポリビニルアルコール、ポリ塩化ビニリデン系樹脂のコーティング膜を有するナイロンフィルム、エチレン-ビニルアルコール共重合体、オレフィン系ポリマー、オレフィン-ポリカルボン酸共重合体、またプラスチック製の基材の上に、酸化ケイ素、酸化アルミニウム等の無機酸化物の蒸着層を設けた構成からなる透明バリア性フィルム、およびアルミニウム等の金属の蒸着層を設けたバリア性フィルムなどを用いた包装袋とすることが好ましい。
本発明の他の実施形態として、上述の第一実施形態および第二実施形態を組み合わせてもよい。そのような変形例としては例えば、次のような実施形態でありうる。
ガスバリアー性を有する包装袋内にセルロース系ポリマーを充填し、前記包装袋を封止する、セルロース系ポリマーの包装方法であって、
下記条件(1)~(4):
条件(1):ガスバリアー性を有する包装袋内に、セルロース系ポリマーを充填すること、
条件(2):包装袋内の酸素濃度を0.8%以下に調整し封止すること、
条件(3):セルロース系ポリマーを充填した包装袋を、最も長い長辺Lが水平になるように設置した際に、水平面からの包装袋の深さDと、長辺Lが、6.1≦L/D≦10の関係式を満たすこと、
条件(4):前記包装袋の最外層表面の静摩擦係数が0.2~0.5、且つ動摩擦係数0.15~0.35の範囲を満たすこと、
を満たす方法。
上述のとおり、本発明のいくつかの態様は、包装方法、輸送方法などの方法でありうるが、本発明によれば、係る包装方法を利用した、セルロース系ポリマーの包装物が提供される。包装物の実施形態としては、例えば、上記第一実施形態に示す包装方法によって、以下のようなセルロース系ポリマーの包装物が提供される。
条件(1):ガスバリアー性を有する包装袋内に、セルロース系ポリマーを充填されていること、
条件(2):包装袋内の酸素濃度を0.8%以下に調整し封止すること、
条件(3):セルロース系ポリマーを充填した包装袋を、最も長い長辺Lが水平になるように設置した際に、水平面からの包装袋の深さDと、長辺Lが、6.1≦L/D≦10の関係式を満たすこと、
を満たす、包装物。
前記包装袋は、最外層表面の静摩擦係数が0.2~0.5、且つ動摩擦係数0.15~0.35の範囲を満たす、包装物。
[実施例1-1]
カルボキシメチルセルロース(日本製紙社製、製品名:MAC500LC)を、未充填(空袋)の状態で長さ850mm、幅565mmで、最外層がクラフト紙基材であり、内装にフィルム基材を有する包装袋に、充填を行った。
充填後、真空脱気した後、窒素ガスを注入し、包装体内の酸素濃度を0.50%、内圧指示値が70kPaとなるように調整し、封止口を密封した。
得られた包装袋を、水平面に設置し、包装袋の内容物が充填領域に均等になるようにしたのち包装袋を計測したところ、その最も長い長辺Lは760mm、水平面からの深さDは110mm、長辺Lと直行する短辺W520mmであった。
カルボキシメチルセルロース(日本製紙社製、製品名:MAC350HC)を用いた以外は、実施例1-1と同様にして包装袋を得た。
カルボキシメチルセルロース(日本製紙社製、製品名:MAC800LC)を用いた以外は、実施例1と同様にして包装袋を得た。
包装体内の酸素濃度を0.3%、内圧指示値を90kPaにした以外は、実施例1と同様にして包装袋を得た。得られた包装袋は水平面に設置し、包装袋の内容物が充填領域に均等になるようにしたのち包装袋を計測したところ、その最も長い長辺Lは760mm、水平面からの深さDは130mm、長辺Lと直行する短辺W520mmであった。
また、得られた包装袋をパレット上に、4列6段積みにて積層した際の、積層状態を目視にて確認を行った。
試料約10gを上皿天秤で採取する。その試料を純水880ml入りのビーカーに溶解用攪拌機を使用し、攪拌しながら徐々に試料を投入して3時間攪拌する。水分値から計算した純水を濃度が1%になるように補正する。
3時間攪拌後(完全溶解確認)、溶液の温度を25±0.2℃に調整する。B型粘度計を用い、粘度を測定する。測定値はローターを始動してから3分後の目盛りを読み取る。
経過日数0日(包装前)のセルロース系ポリマーの1%水溶液粘度(粘度1)に対する、包装後コンテナ内で50℃で保管(1ヶ月、3ヶ月、6ヶ月)したセルロース系ポリマーの1%水溶液粘度(粘度2)粘度の変化率は次式(1)により算出する。
〔(粘度2-粘度1)/粘度1〕×100 (%)・・・(1)
一方、比較例1-1の包装袋は、酸素濃度が低く抑えられているため、カルボキシメチルセルロースの粘度維持効果には優れているが、内圧が高く包装袋が膨張しており積層状態でのバランスが悪く、輸送形態としては適していない。
[実施例2-1]
カルボキシメチルセルロース(日本製紙社製、製品名:MAC500LC)を、最外層がクラフト紙基材(表面の静摩擦係数:0.32、動摩擦係数:0.28、王研式平滑度:5秒、坪量:85g/m2)であり、内層にフィルム基材を有する包装袋に、充填を行った。
充填後、真空脱気した後、窒素ガスを注入し、包装体内の酸素濃度を0.50%、内圧指示値が70kPaとなるように調整し、封止口を密封し、カルボキシメチルセルロースを充填した包装袋2-1を得た。
最外層がクラフト紙基材(表面の静摩擦係数:0.30、動摩擦係数:0.28、王研式平滑度:5秒、坪量:76g/m2)に変えた以外は、実施例1と同様にして、カルボキシメチルセルロースを充填した包装袋2-2を得た。
クラフト紙基材を用いず、フィルム基材(表面の静摩擦係数:0.12、動摩擦係数:0.1、王研式平滑度:測定不可、坪量:109g/m2)が最外層となるように変えた以外は、実施例1と同様にしてカルボキシメチルセルロースを充填した包装袋3を得た。
Claims (20)
- ガスバリアー性を有する包装袋内にセルロース系ポリマーを充填し、前記包装袋を封止する、セルロース系ポリマーの包装方法。
- 下記条件(1)~(3)を満たすことを特徴とする、請求項1に記載のセルロース系ポリマーの包装方法。
条件(1):ガスバリアー性を有する前記包装袋内に、セルロース系ポリマーを充填すること。
条件(2):前記包装袋内の酸素濃度を0.8%以下に調整し封止すること。
条件(3):セルロース系ポリマーを充填した前記包装袋を、最も長い長辺Lが水平になるように設置した際に、水平面からの包装袋の深さDと、長辺Lが、6.1≦L/D≦10の関係式を満たすこと。 - セルロース系ポリマーを充填した前記包装袋の最も長い長辺Lが、700mm以上1100mm以下であることを特徴とする請求項1または2に記載のセルロース系ポリマーの包装方法。
- セルロース系ポリマーを充填した前記包装袋の長辺Lと、直行する短辺Wが、400mm以上700mm未満であることを特徴とする請求項1~3のいずれか一項に記載のセルロース系ポリマーの包装方法。
- セルロース系ポリマーを充填した前記包装袋の深さDが、130mm未満であることを特徴とする請求項1~4いずれか一項に記載のセルロース系ポリマーの包装方法。
- 最外層表面の静摩擦係数が0.2~0.5、且つ動摩擦係数0.15~0.35の範囲を満たすガスバリアー性を有する前記包装袋に、セルロース系ポリマーを充填することを特徴とする、請求項1~5のいずれか一項に記載のセルロース系ポリマーの包装方法。
- 前記包装袋の最外層の平滑度が2~10秒の範囲を満たすことを特徴とする、請求項6に記載のセルロース系ポリマーの包装方法。
- 前記包装袋の最外層が、紙基材であることを特徴とする請求項6または7に記載のセルロース系ポリマーの包装方法。
- 前記包装袋の最外層が、坪量50~100g/m2の範囲を満たすことを特徴とする、請求項6~8のいずれか一項に記載のセルロース系ポリマーの包装方法。
- 前記セルロース系ポリマーが、カルボキシメチルセルロースであることを特徴とする、請求項1~9いずれか一項に記載のセルロース系ポリマーの包装方法。
- 前記包装袋内を真空処理した後、窒素置換し酸素濃度を0.8%以下に調整することを特徴とする、請求項1~10のいずれか一項に記載のセルロース系ポリマーの包装方法。
- 前記包装袋内の内圧が、85KPa以下であることを特徴とする、請求項1~11のいずれか一項に記載のセルロース系ポリマーの包装方法。
- 請求項1~12のいずれか一項に記載のセルロース系ポリマーの包装方法により得られた包装袋を、積層し、目的地まで輸送することを特徴とするセルロース系ポリマーの輸送方法。
- 前記包装袋を、2段以上10段以下の積層状態とすることを特徴とする、請求項13に記載のセルロース系ポリマーの輸送方法。
- 密封された包装袋と、前記包装袋内に充填されたセルロース系ポリマーとを備える、セルロース系ポリマーの包装物であって、下記条件(1)~(3):
条件(1):ガスバリアー性を有する前記包装袋内に、セルロース系ポリマーを充填すること、
条件(2):前記包装袋内の酸素濃度を0.8%以下に調整し封止すること、
条件(3):セルロース系ポリマーを充填した前記包装袋を、最も長い長辺Lが水平になるように設置した際に、水平面からの包装袋の深さDと、長辺Lが、6.1≦L/D≦10の関係式を満たすこと、
を満たす、包装物。 - 前記包装袋は、最外層表面の静摩擦係数が0.2~0.5、且つ動摩擦係数0.15~0.35の範囲を満たす、請求項15に記載のセルロース系ポリマーの包装物。
- 前記セルロース系ポリマーが、カルボキシメチルセルロースであることを特徴とする、請求項15または16に記載のセルロース系ポリマーの包装物。
- 前記包装袋内の酸素濃度が、0.3%より大きく、0.8%以下であることを特徴とする、請求項15~17のいずれか一項に記載のセルロース系ポリマーの包装物。
- 前記包装袋内の内圧が、85KPa以下であることを特徴とする請求項15~18のいずれか一項に記載のセルロース系ポリマーの包装物。
- 前記包装袋は2層または3層以上の層構造を有し、前記包装袋の最外層が紙基材であり、前記最外層の内側にある内袋層のうちの少なくとも一層がガスバリアー層である、請求項15~19のいずれか一項に記載のセルロース系ポリマーの包装物。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021549960A JP7048827B2 (ja) | 2020-04-23 | 2021-04-16 | セルロース系ポリマーの包装方法および輸送方法、並びにセルロース系ポリマーの包装物 |
EP21791752.5A EP4140900A4 (en) | 2020-04-23 | 2021-04-16 | PACKAGING METHOD AND TRANSPORT METHOD FOR CELLULOSE POLYMERS, AND PACKAGED CELLULOSE POLYMER |
KR1020227040763A KR20230005253A (ko) | 2020-04-23 | 2021-04-16 | 셀룰로오스계 폴리머의 포장 방법 및 수송 방법, 및 셀룰로오스계 폴리머의 포장물 |
CN202180029942.0A CN115485198B (zh) | 2020-04-23 | 2021-04-16 | 纤维素系聚合物的包装方法及运输方法、以及纤维素系聚合物的包装物 |
JP2022010991A JP7268210B2 (ja) | 2020-04-23 | 2022-01-27 | セルロース系ポリマーの包装方法および輸送方法、並びにセルロース系ポリマーの包装物 |
US17/968,312 US20230066934A1 (en) | 2020-04-23 | 2022-10-18 | Method for packaging cellulosic polymer, method for transporting the same, and cellulosic polymer package |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020-076414 | 2020-04-23 | ||
JP2020076414 | 2020-04-23 | ||
JP2020-111368 | 2020-06-29 | ||
JP2020111368 | 2020-06-29 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/968,312 Continuation US20230066934A1 (en) | 2020-04-23 | 2022-10-18 | Method for packaging cellulosic polymer, method for transporting the same, and cellulosic polymer package |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021215358A1 true WO2021215358A1 (ja) | 2021-10-28 |
Family
ID=78269231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2021/015675 WO2021215358A1 (ja) | 2020-04-23 | 2021-04-16 | セルロース系ポリマーの包装方法および輸送方法、並びにセルロース系ポリマーの包装物 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20230066934A1 (ja) |
EP (1) | EP4140900A4 (ja) |
JP (3) | JP7048827B2 (ja) |
KR (1) | KR20230005253A (ja) |
CN (1) | CN115485198B (ja) |
TW (1) | TWI768833B (ja) |
WO (1) | WO2021215358A1 (ja) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11158201A (ja) * | 1997-11-25 | 1999-06-15 | Akio Onda | セルロース系物質の貯蔵輸送とパルプの製造方法 |
JP2011230777A (ja) * | 2010-04-23 | 2011-11-17 | Siko Corp | 粉粒体の包装用の袋 |
JP2012121957A (ja) | 2010-12-07 | 2012-06-28 | Nippon Paper Chemicals Co Ltd | セルロース系ポリマーの保管方法 |
JP3202739U (ja) * | 2015-12-08 | 2016-02-18 | 王子ホールディングス株式会社 | 重量物用包装袋 |
JP2016166257A (ja) * | 2015-03-09 | 2016-09-15 | 日本製紙株式会社 | セルロース系ポリマーの保管方法 |
WO2018173761A1 (ja) * | 2017-03-22 | 2018-09-27 | 日本製紙株式会社 | 化学変性セルロース繊維の保管方法および化学変性セルロースナノファイバーの製造方法 |
JP2019073649A (ja) * | 2017-10-18 | 2019-05-16 | 花王株式会社 | セルロース誘導体組成物の保存方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0454105Y2 (ja) * | 1986-12-29 | 1992-12-18 | ||
CN101272905A (zh) * | 2005-09-26 | 2008-09-24 | 尤尼吉可株式会社 | 阻气性层叠体 |
JP5950574B2 (ja) | 2011-12-28 | 2016-07-13 | 昭和電工パッケージング株式会社 | 自動包装適性に優れた無塵包装袋 |
CN203283384U (zh) * | 2013-05-30 | 2013-11-13 | 清丰同化新材料科技有限公司 | 一种0~1吨重量可调纤维素料仓重力感应系统 |
EP2910477B1 (en) * | 2014-02-21 | 2018-03-28 | Celanese Acetate LLC | Methods for packaging fibrous materials |
-
2021
- 2021-04-16 JP JP2021549960A patent/JP7048827B2/ja active Active
- 2021-04-16 WO PCT/JP2021/015675 patent/WO2021215358A1/ja unknown
- 2021-04-16 KR KR1020227040763A patent/KR20230005253A/ko active Search and Examination
- 2021-04-16 EP EP21791752.5A patent/EP4140900A4/en active Pending
- 2021-04-16 CN CN202180029942.0A patent/CN115485198B/zh active Active
- 2021-04-19 TW TW110113961A patent/TWI768833B/zh active
- 2021-09-13 JP JP2021148371A patent/JP7048803B2/ja active Active
-
2022
- 2022-01-27 JP JP2022010991A patent/JP7268210B2/ja active Active
- 2022-10-18 US US17/968,312 patent/US20230066934A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11158201A (ja) * | 1997-11-25 | 1999-06-15 | Akio Onda | セルロース系物質の貯蔵輸送とパルプの製造方法 |
JP2011230777A (ja) * | 2010-04-23 | 2011-11-17 | Siko Corp | 粉粒体の包装用の袋 |
JP2012121957A (ja) | 2010-12-07 | 2012-06-28 | Nippon Paper Chemicals Co Ltd | セルロース系ポリマーの保管方法 |
JP2016166257A (ja) * | 2015-03-09 | 2016-09-15 | 日本製紙株式会社 | セルロース系ポリマーの保管方法 |
JP3202739U (ja) * | 2015-12-08 | 2016-02-18 | 王子ホールディングス株式会社 | 重量物用包装袋 |
WO2018173761A1 (ja) * | 2017-03-22 | 2018-09-27 | 日本製紙株式会社 | 化学変性セルロース繊維の保管方法および化学変性セルロースナノファイバーの製造方法 |
JP2019073649A (ja) * | 2017-10-18 | 2019-05-16 | 花王株式会社 | セルロース誘導体組成物の保存方法 |
Also Published As
Publication number | Publication date |
---|---|
CN115485198A (zh) | 2022-12-16 |
CN115485198B (zh) | 2024-02-06 |
TWI768833B (zh) | 2022-06-21 |
JP2022044773A (ja) | 2022-03-17 |
JP7048803B2 (ja) | 2022-04-05 |
JPWO2021215358A1 (ja) | 2021-10-28 |
TW202146285A (zh) | 2021-12-16 |
US20230066934A1 (en) | 2023-03-02 |
EP4140900A4 (en) | 2024-05-01 |
JP7268210B2 (ja) | 2023-05-02 |
KR20230005253A (ko) | 2023-01-09 |
JP7048827B2 (ja) | 2022-04-05 |
EP4140900A1 (en) | 2023-03-01 |
JP2022001510A (ja) | 2022-01-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Azeredo et al. | Nanocellulose in bio-based food packaging applications | |
Su et al. | Prospects for replacement of some plastics in packaging with lignocellulose materials: A brief review | |
Yook et al. | Barrier coatings with various types of cellulose nanofibrils and their barrier properties | |
EP2576902B1 (en) | Cellulosic barrier composition | |
US8029896B2 (en) | Gas barrier material | |
EP2576901B1 (en) | Cellulosic barrier composition comprising anionic polymer | |
EP2759577B1 (en) | Composition for film molding, laminate, film, sheet substrate, packaging material, method for producing composition for film molding, and method for producing cellulose dispersion | |
Bilbao-Sainz et al. | HPMC reinforced with different cellulose nano-particles | |
KR101886880B1 (ko) | 가스 배리어성 적층체 및 포장 재료 | |
Fernández-Santos et al. | Composites of cellulose nanocrystals in combination with either cellulose nanofibril or carboxymethylcellulose as functional packaging films | |
EP3444400B1 (en) | Barrier paper and paper cup | |
WO2021215358A1 (ja) | セルロース系ポリマーの包装方法および輸送方法、並びにセルロース系ポリマーの包装物 | |
EP3444195B1 (en) | Paper cup | |
US10952939B2 (en) | Percarbonate-containing blonding agent in an aluminum sachet | |
George et al. | Gas barrier properties of biopolymers | |
Gao et al. | Nanocellulose in Food Packaging—A Short Review | |
KR20190125762A (ko) | 우수한 산소 차단 특성을 가지는 질화붕소 나노시트-셀룰로오스 나노섬유 복합 필름 및 이의 제조 방법 | |
ES2792798T3 (es) | Composición de barrera celulósica |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2021549960 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21791752 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20227040763 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2021791752 Country of ref document: EP Effective date: 20221123 |