JP2004217866A - Undiluted lubricant solution for container carrying conveyer belt and lubricant - Google Patents
Undiluted lubricant solution for container carrying conveyer belt and lubricant Download PDFInfo
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- JP2004217866A JP2004217866A JP2003009680A JP2003009680A JP2004217866A JP 2004217866 A JP2004217866 A JP 2004217866A JP 2003009680 A JP2003009680 A JP 2003009680A JP 2003009680 A JP2003009680 A JP 2003009680A JP 2004217866 A JP2004217866 A JP 2004217866A
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- lubricant
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- 239000000314 lubricant Substances 0.000 title claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000000839 emulsion Substances 0.000 claims abstract description 40
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 34
- 239000004094 surface-active agent Substances 0.000 claims abstract description 14
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 7
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 5
- 239000011550 stock solution Substances 0.000 claims description 21
- 125000004432 carbon atom Chemical group C* 0.000 claims description 15
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 11
- 125000004429 atom Chemical group 0.000 claims description 4
- 238000010556 emulsion polymerization method Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 238000005187 foaming Methods 0.000 abstract description 18
- 239000000243 solution Substances 0.000 abstract description 16
- 238000010790 dilution Methods 0.000 abstract description 8
- 239000012895 dilution Substances 0.000 abstract description 8
- 150000002430 hydrocarbons Chemical group 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- -1 fatty acid sodium salt Chemical class 0.000 description 51
- 239000004205 dimethyl polysiloxane Substances 0.000 description 19
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 19
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 19
- 239000003085 diluting agent Substances 0.000 description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 235000014113 dietary fatty acids Nutrition 0.000 description 8
- 239000000194 fatty acid Substances 0.000 description 8
- 229930195729 fatty acid Natural products 0.000 description 8
- 229920001577 copolymer Polymers 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000008399 tap water Substances 0.000 description 7
- 235000020679 tap water Nutrition 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 5
- 125000001931 aliphatic group Chemical group 0.000 description 5
- 125000000217 alkyl group Chemical group 0.000 description 5
- 238000007865 diluting Methods 0.000 description 5
- 125000003438 dodecyl group Chemical group [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])* 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 4
- 239000002738 chelating agent Substances 0.000 description 4
- 238000004945 emulsification Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 239000002280 amphoteric surfactant Substances 0.000 description 3
- 239000003945 anionic surfactant Substances 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 229960003237 betaine Drugs 0.000 description 3
- 238000009924 canning Methods 0.000 description 3
- 125000002704 decyl group Chemical group [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])* 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 125000001421 myristyl group Chemical group [H]C([*])([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 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000013112 stability test Methods 0.000 description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 3
- 229960004418 trolamine Drugs 0.000 description 3
- ICLYJLBTOGPLMC-KVVVOXFISA-N (z)-octadec-9-enoate;tris(2-hydroxyethyl)azanium Chemical compound OCCN(CCO)CCO.CCCCCCCC\C=C/CCCCCCCC(O)=O ICLYJLBTOGPLMC-KVVVOXFISA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- OHHLQFCWNFSQEY-UHFFFAOYSA-N O.O.O.O.[Na].[Na].[Na].[Na].OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O Chemical compound O.O.O.O.[Na].[Na].[Na].[Na].OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O OHHLQFCWNFSQEY-UHFFFAOYSA-N 0.000 description 2
- 125000005211 alkyl trimethyl ammonium group Chemical group 0.000 description 2
- 125000004103 aminoalkyl group Chemical group 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000003093 cationic surfactant Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000001804 emulsifying effect Effects 0.000 description 2
- 150000002169 ethanolamines Chemical class 0.000 description 2
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 125000001624 naphthyl group Chemical group 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([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 description 2
- 125000000913 palmityl group Chemical group [H]C([*])([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 description 2
- 125000005372 silanol group Chemical group 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 235000014214 soft drink Nutrition 0.000 description 2
- 125000004079 stearyl group Chemical group [H]C([*])([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])C([H])([H])[H] 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 description 1
- 125000000094 2-phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- RUPBZQFQVRMKDG-UHFFFAOYSA-M Didecyldimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCC[N+](C)(C)CCCCCCCCCC RUPBZQFQVRMKDG-UHFFFAOYSA-M 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 125000005037 alkyl phenyl group Chemical group 0.000 description 1
- 150000008052 alkyl sulfonates Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 229940077388 benzenesulfonate Drugs 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 229960004670 didecyldimethylammonium chloride Drugs 0.000 description 1
- REZZEXDLIUJMMS-UHFFFAOYSA-M dimethyldioctadecylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCCCCCC REZZEXDLIUJMMS-UHFFFAOYSA-M 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- POULHZVOKOAJMA-UHFFFAOYSA-M dodecanoate Chemical compound CCCCCCCCCCCC([O-])=O POULHZVOKOAJMA-UHFFFAOYSA-M 0.000 description 1
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229940070765 laurate Drugs 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 1
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 description 1
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical compound CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([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 description 1
- 238000012856 packing Methods 0.000 description 1
- CETWGWHVAKIHPW-UHFFFAOYSA-N pentadecane-2,3-diamine Chemical compound CCCCCCCCCCCCC(N)C(C)N CETWGWHVAKIHPW-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 229940117013 triethanolamine oleate Drugs 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
Description
【０００１】
【発明が属する技術分野】
本発明は、清涼飲料水、ジュース、牛乳、酒類、ドリンク剤等のビン詰め工程あるいは缶詰め工程において、容器搬送用コンベアベルトの表面上に塗布、噴霧等の手段により適用して容器底面との潤滑性を向上するための潤滑剤の原液、および、容器搬送用コンベアベルトの表面上に塗布、噴霧等の手段により適用して容器底面との潤滑性を向上するための潤滑剤に関する。
【０００２】
【従来の技術】
清涼飲料水、ジュース、牛乳、酒類、ドリンク剤等の工場におけるビン詰め工程あるいは缶詰工場に缶詰め工程では、内容物を詰め、蓋をする作業に際してビンや缶などの容器を搬送するためにコンベアベルトが使用されている。この種の容器搬送用コンベアベルトは通常自動制御により連続運転される。内容物を詰め、栓や蓋をしたビンや缶は、連続運転中のコンベアベルト上から横方向あるいは上方向に除去される。このような場合には、ビンや缶などの容器と接触しているコンベアベルト表面は動摩擦力が低い方が良い。また、洗浄機等から運ばれてきたビンや缶等の容器を連続運転中の容器搬送用コンベアベルト上に乗せる場合には、コンベアベルト表面は適度な静摩擦力を有する方が好ましい。これら両方の要求を満たすために、通常、コンベアベルト表面に所望の潤滑剤が塗布、噴霧等の手段により適用される。この種のコンベアベルト用潤滑剤として従来、石けん（高級脂肪酸ナトリウム塩）、アルキルリン酸エステルアルカリ塩あるいはアルキルジアミン有機酸塩を主成分とする潤滑剤や、各種界面活性剤を主成分とした潤滑剤が知られている（特開平６−１３６３７７、特開平８−３３３５９２）。これら潤滑剤は通常、原液を水で１００〜４００倍あるいはそれ以上に希釈して、コンベアベルト表面に塗布や噴霧することにより適用されている。
【０００３】
【発明が解決すべき課題】
しかし、これら従来公知の潤滑剤はいずれも界面活性剤を主成分とするため、コンベアベルト表面に塗布や噴霧した場合、コンベアベルト表面に少なからず泡が発生する。コンベアベルト表面に泡が発生すると、外観上見苦しいのみならず、ビンや缶に泡が付着してしまう。これらビンや缶、特に、ビンの場合、空ビンや実ビン検査機でビンの破損状態や洗浄不良、さらには内容量不足等を検査するのが通例であるが、ビンに泡が付着すると、この泡がビンの破損や汚れ等として上記検査機で誤って検出されてしまう。
さらに、これら従来公知の潤滑剤は通常多量の水で希釈して適用されるが、このうち、特に石けんの水希釈液およびアルキルリン酸エステルアルカリ塩の水希釈液は経時的に成分が分離して均一性に欠けるようになる。すなわち、希釈安定性に欠ける。そのため、水希釈液を自動供給する際、ノズルが水希釈液によって目詰りを引き起こす危険性があり、そのため、希釈安定性を向上させる目的でキレート剤を添加したり、あるいは、軟水で希釈するなどを余儀なくされている。
【０００４】
そこで、本発明者らは、上述の公知技術の欠点を解消すべく鋭意検討した結果、多量の水で希釈しても良好な潤滑性を維持したまま容器搬送用コンベアベルト上での泡立ちが抑制され、均一分散性を維持している、すなわち、希釈安定性が改良された潤滑剤原液を提供することに成功した。本発明の目的は、多量の水で希釈しても良好な潤滑性を維持したまま容器搬送用コンベアベルト上での泡立ちが抑制され、希釈安定性が改良された潤滑剤原液、および良好な潤滑性を維持したまま容器搬送用コンベアベルト上での泡立ちが抑制され、保存安定性が改良された潤滑剤を提供することにある。
【０００５】
【課題を解決するための手段】
かかる目的は、
（Ａ）平均単位式
ＲａＲ１ ｂＳｉＯ（４ ― ａ ― ｂ）／２ （式中、Ｒは炭素原子数１〜２０の非置換もしくは置換１価炭化水素基、または、水素原子であり（但し、Ｒ中の少なくとも５０モル％は炭素原子数１〜２０の非置換もしくは置換１価炭化水素基である）、Ｒ１は、水酸基または炭素原子数１〜１０のアルコキシ基であり、ａは平均１．８〜２．１であり、ｂは平均０〜０．１である。）で示されるオルガノポリシロキサン：エマルジョン中５〜８０重量％、
（Ｂ）界面活性剤：成分（Ａ）の１〜６０重量％、および
（Ｃ）水：残量
からなるＯ／Ｗ型オルガノポリシロキサンエマルジョンである容器搬送コンベアベルト用潤滑剤原液、および、
（Ａ）平均単位式
ＲａＲ１ ｂＳｉＯ（４ ― ａ ― ｂ）／２ （式中、Ｒは炭素原子数１〜２０の非置換もしくは置換１価炭化水素基、または、水素原子であり（但し、Ｒ中の少なくとも５０モル％は炭素原子数１〜２０の非置換もしくは置換１価炭化水素基である）、Ｒ１は、水酸基または炭素原子数１〜１０のアルコキシ基であり、ａは平均１．８〜２．１であり、ｂは平均０〜０．１である。）で示されるオルガノポリシロキサン：エマルジョン中０．０１０〜０．５重量％、
（Ｂ）界面活性剤：成分（Ａ）の１〜６０重量％、および
（Ｃ）水：残量
からなるＯ／Ｗ型オルガノポリシロキサンエマルジョンである容器搬送コンベアベルト用潤滑剤により達成される。
【０００６】
【発明の実施の形態】
本発明の容器搬送コンベアベルト用潤滑剤原液および潤滑剤における成分（Ａ）は、容器搬送コンベアベルト表面に潤滑性を付与する作用をする。上記平均単位式中のＲのうち、炭素原子数１〜２０の非置換１価炭化水素基としては、メチル基、エチル基、プロピル基、ブチル基、オクチル基、デシル基、ドデシル基、テトラデシル基等のアルキル基；ビニル基、アリル基等のアルケニル基；シクロペンチル基、シクロヘキシル基等のシクロアルキル基；フェニル基、トリル基、ナフチル基等のアリール基が例示される。炭素原子数１〜２０の置換１価炭化水素基としては、２−フェニルエチル基等のアラルキル基、３，３，３−トリフルオロプロピル基、３−グリシドキシプロピル基、３，４−エポキシシクロヘキシルエチル基、３−アミノプロピル基、Ｎ−アミノエチル−３−アミノプロピル基、Ｎ−シクロヘキシル−３−アミノプロピル基が例示される。Ｒは水素原子であってもよいが、分子中の全Ｒのうち、５０モル％以上は炭素原子数１〜２０の非置換もしくは置換１価炭化水素基であり、潤滑性の点で好ましくは１００モル％が炭素原子数１〜２０の非置換１価炭化水素基である。非置換１価炭化水素基は、好ましくはアルキル基であり、より好ましくはメチル基である。また、分子中の全Ｒのうち０．０５〜５モル％が３−グリシドキシプロピル基、３，４−エポキシシクロヘキシルエチル基、３−アミノプロピル基、Ｎ−アミノエチル−３−アミノプロピル基、Ｎ−シクロヘキシル−３−アミノプロピル基のような官能性基を有する置換１価炭化水素基であり、残りがメチル基であるオルガノポリシロキサンも好ましく用いられる。
上記平均単位式中のＲ１は、水酸基または炭素原子数１〜１０のアルコキシ基であり、アルコキシ基としてメトキシ基、エトキシ基、プロポキシ基が例示される。
【０００７】
成分（Ａ）の分子構造は、直鎖状および部分的に分岐した直鎖状が好ましい。
成分（Ａ）は、末端がトリメチルシロキシ基もしくはシラノール基で封鎖されたジメチルポリシロキサン、メチルアルキルポリシロキサン、ジメチルシロキサン・メチルアルキルシロキサン共重合体、メチルフェニルポリシロキサン、ジメチルシロキサン・メチルフェニルシロキサン共重合体、ジメチルシロキサン・メチル（アミノアルキル）シロキサン共重合体、ジメチルシロキサン・メチル（エポキシアルキル）シロキサン共重合体が代表的である。
成分（Ａ）の分子構造が直鎖状であるときは、常温で液状であり、その粘度は２５℃で１００〜５，０００，０００ｍＰａ・ｓが好ましく、２００〜２，０００，０００ｍＰａ・ｓがより好ましい。成分（Ａ）の分子構造が部分的に分岐した直鎖状であるときは、常温で液状であるか、柔軟なゲル状であることが好ましい。、常温で液状であるときは、その粘度は２５℃で１００〜５，０００，０００ｍＰａ・ｓが好ましく、２００〜２，０００，０００ｍＰａ・ｓがより好ましい。
【０００８】
成分（Ａ）は、潤滑剤原液であるオルガノポリシロキサンエマルジョン中に５〜８０重量％含有され、好ましくは２５〜６０重量％含有される。また、成分（Ａ）は、潤滑剤であるオルガノポリシロキサンエマルジョン中に０．０１０〜０．５重量％含有され、好ましくは０．０１５〜０．２５重量％含有される。
成分（Ｂ）の界面活性剤は、成分（Ａ）であるオルガノポリシロキサンを水中に安定に乳化させる作用をする。これには、ノニオン系界面活性剤、アニオン系界面活性剤、カチオン系界面活性剤、および両性界面活性剤がある。
ノニオン系界面活性剤としては、例えば、グリセリン脂肪酸エステル、ソルビタン脂肪酸エステル、ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルキルフェニルエーテル、ポリオキシエチレンソルビタン脂肪酸エステル、ポリオキシエチレングリセリン脂肪酸エステルが挙げられる。ここで上記エーテルやエステル中のアルキル基の例として、デシル基、ラウリル基、ドデシル基、テトラデシル基、セチル基、ステアリル基等の飽和脂肪族基を挙げることができるが、これらに限定されるものではない。また、アルキル基の替わりにオレイル基等の不飽和脂肪族基であってもよい。
【０００９】
アニオン系界面活性剤としては、例えば、アルキルベンゼンスルホン酸塩、アルキルナフチルスルホン酸塩、アルキルスルホン酸塩、不飽和脂肪族スルホン酸塩、水酸化脂肪族スルホン酸塩、アルキルエーテル硫酸塩、ポリオキシエチレンアルキルエーテル硫酸塩、ポリオキシエチレンアルキルフェニルエーテル硫酸塩が挙げられる。ここでアルキル基の例としては、デシル基、ラウリル基、ドデシル基、テトラデシル基、セチル基、ステアリル基等の飽和炭化水素基を挙げることができ、不飽和脂肪族としてオレイル基を挙げることができるが、これらに限定されるものではない。また、塩を形成するための塩基としては、ナトリウム、カリウム、リチウム、アンモニウム、アルキルアミンが例示され、ナトリウムが一般的である。
【００１０】
カチオン系面活性剤としては、例えばオクタデシルトリメチルアンモニウムクロライド、ヘキサデシルトリメチルアンモニウムクロライドなどのアルキルトリメチルアンモニウム塩；ジオクタデシルジメチルアンモニウムクロライド、ジヘキサデシルトリジアンモニウムクロライド、ジデシルジメチルアンモニウムクロライドなどのジアルキルジメチルアンモニウム塩など、第４級アンモニウム塩系の界面活性剤が挙げられる。
両性界面活性剤としては、例えばラウリルジメチルアミノ酢酸ベタイン、ラウリン酸アミドプロピルジメチルアミノ酢酸ベタイン、ヤシ油脂肪酸アミドプロピルジメチルアミノ酢酸ベタインなどの酢酸ベタイン型の両性界面活性剤が挙げられる。
【００１１】
上記（Ｂ）成分は、単一物でもよいし、タイプの異なる２種類以上の界面活性剤の混合物であってもよい。
成分（Ｂ）は成分（Ａ）であるオルガノポリシロキサンの１〜６０重量％を配合されるが、２〜２０重量％配合することが好ましい。１重量％未満では安定性の良いシリコーンエマルジョン組成物を得ることが困難であり、一方、６０重量％よりも多いと、かえってエマルジョンの貯蔵安定性が損なわれるうえ、水希釈時に泡立ちやすくなるので、好ましくない。
【００１２】
成分（Ｃ）としての水は、成分（Ａ）が成分（Ｂ）の作用により乳化するための媒質である。水には、水道水、井戸水、イオン交換水、蒸留水が例示される。その配合量は成分（Ａ）と成分（Ｂ）の残量である。
【００１３】
本発明の潤滑剤原液用のＯ／Ｗ型オルガノポリシロキサンエマルジョンは、成分（Ａ）であるオルガノポリシロキサンと成分（Ｂ）である界面活性剤を水に配合し、これをホモミキサー、ホモジナイザー、コロイドミル、コンビミキサー等の乳化機を用いて水中に乳化するという、機械的シェア乳化法により製造することができる。エマルジョン粒子の平均粒径は、水希釈時の安定性の点で、５００ｎｍ以下であることが好ましく、３５０ｎｍ以下であることがより好ましい。オルガノポリシロキサンがジメチルシロキサン・（アミノアルキル）メチルシロキサン共重合体のようなアミノ基含有オルガノポリシロキサンであると、エマルジョン粒子の平均粒径が１００ｎｍ以下というように微細になり、水希釈時に安定性が優れたエマルジョンになるので、好ましい。
【００１４】
また、本発明の潤滑剤原液用のＯ／Ｗ型オルガノポリシロキサンエマルジョンは、乳化重合法により製造することができる。それには、例えば、Ｓｉ原子数が４から６程度の環状ジメチルシロキサンオリゴマーをアルキルベンゼンスルホン酸により水中に乳化し、８０℃〜９０℃で２時間反応させた後、生成したジメチルポリシロキサンの粘度が所期の値に到達するまで冷却・保持した後に、塩基（例えば、トリエタノールアミン、水酸化ナトリウム）水溶液により中和する。Ｓｉ原子数が４〜６程度の環状ジメチルシロキサンオリゴマーをアルキルトリメチルアンモニウムクロライドにより水中に乳化し、アンモニウム塩を活性化するに足る水酸化ナトリウムを添加した後、８０℃から９０℃にて４時間反応させた後、生成したジメチルポリシロキサンの粘度が所期の値に到達するまで冷却・保持した後に酢酸水溶液により中和する。また、末端が水酸基で封鎖された粘度１００ｍＰａ・ｓ程度のジメチルポリシロキサンをアニオン系界面活性剤を用いてホモジナイザーなどにて水中に乳化分散し、これにアルキルベンゼンスルホン酸を添加して、生成したジメチルポリシロキサンの粘度が所期の値に到達するまで反応させた後に塩基（例えば、トリエタノールアミン、水酸化ナトリウム）水溶液により中和する。乳化重合の際に少量のオルガノトリアルコキシシラン（例、メチルトリメトキシシラン、３−グリシドキシプロピルトリメトキシシラン、３−アミノプロピルトリメトキシシラン、Ｎ−アミノエチル−３−アミノプロピルトリメトキシシラン）を配合してもよい。そうすると部分的に分岐した直鎖状のオルガノポリシロキサンが生成する。
【００１５】
乳化重合法によるオルガノポリシロキサンエマルジョンはエマルジョン粒子の平均粒径が２５０ｎｍ以下というように微細であり、水希釈時の安定性が優れているので潤滑剤原液として好適である。
【００１６】
これらのオルガノポリシロキサンエマルジョンには、必要に応じて、公知の乳化補助剤（例えば、ポリビニルアルコール、水溶性セルロース誘導体）、防腐剤、染料、浸透剤、帯電防止剤、キレート化剤、無機粉体などを配合することができる。
【００１７】
本発明の潤滑剤用のＯ／Ｗ型オルガノポリシロキサンエマルジョンは、エマルジョン中のオルガノポリシロキサンが０．０１０〜０．５０重量％になるように前記潤滑剤原液を所定倍率の水で希釈することにより容易に製造できる。すなわち、前記潤滑剤原液を所定倍率の水に添加し攪拌することにより、あるいは、前記潤滑剤原液に所定倍率の水を添加し攪拌することにより製造できる。前記潤滑剤原液を所定倍率の水で希釈してなる潤滑剤を、容器搬送用コンベアベルト表面に塗布、噴霧、滴下等により付着させることにより、コンベアベルトはビン、缶等の容器搬送に好適となる。すなわち、本発明は、エマルジョン中のオルガノポリシロキサンが０．０１０〜０．５０重量％になるように前記潤滑剤原液を所定倍率の水で希釈してＯ／Ｗ型オルガノポリシロキサンエマルジョンからなる潤滑剤を調製し、該潤滑剤をコンベアベルト表面に付着させ、該表面に容器を載せて搬送するという方法をも実施態様とする。
【００１８】
【実施例】
以下、本発明を実施例によって具体的に説明する。下記試験時の温度は２５℃であり、粘度は２５℃における値であり、表中の％は重量％を意味する。
［実施例１］
Ｓｉ原子数が４〜６の環状ジメチルシロキサンオリゴマーを表２に示す界面活性剤とドデシルベンゼンスルホン酸により水中に乳化し、８０℃〜９０℃で２時間重合反応させた後、生成した両末端シラノール封鎖ジメチルポリシロキサンの粘度が所期の値に到達するまで冷却・保持した後に、トリエタノールアミン水溶液により中和することにより両末端シラノール基封鎖ジメチルポリシロキサンのＯ／Ｗ型エマルジョンである潤滑剤原液（Ａ）〜（Ｃ）を調製した。これらを水道水で希釈してシラノール末端ジメチルポリシロキサンの含有量（重量％）を表１に示す濃度に調整して、Ｏ／Ｗ型オルガノポリシロキサンエマルジョンである潤滑剤（試料Ｎｏ．１〜Ｎｏ．１０）を調製した。これら各試料について、潤滑性、泡立ち性および水希釈液の安定性試験を行い、それらの結果を表１に示した。また、試験に供した潤滑剤原液（Ａ）〜（Ｃ）の組成ならびに特性を表２に示した。
【００１９】
なお、潤滑性試験、泡立ち試験および水希釈液の安定性試験は以下の方法で行った。すなわち、６０ｃｍ／分の速度で稼動するプラスチック製コンベアベルト表面に充填ペットボトルを配列すると共に、調整した潤滑剤をそれぞれ３０ｍｌ／分の流量で前記コンベアベルト表面に供給し、１０分後の摩擦係数を測定して潤滑性を判断した。また、その時のコンベアベルト上の泡立ち性を目視で観察した。さらに、全硬度６０ｐｐｍの水道水で表１のオルガノポリシロキサン濃度に希釈したエマルジョンを室温で１２時間放置し、放置後の状態を目視で観察した。
摩擦係数（μ）は式、
摩擦係数（μ）＝バネ秤引っ張り抵抗値（ｇ）／ペットボトル重量（ｇ）
により計算した。
【００２０】
潤滑性評価は、○印が摩擦係数（μ）０．１２以下であって、「非常に滑る」を意味し、△印が摩擦係数（μ）０．１２〜０．１４であって、「問題なく滑る」を意味し、×印が摩擦係数（μ）０．１４以上であって、「滑りが悪い」を意味する。
泡立ち性の評価は、○印が「無泡」を意味し、△印が「泡立ちが見られる」を意味し、×印が「泡立ち多い」を意味する。
希釈液の安定性試験の評価は、上述のように全硬度６０ｐｐｍの水道水で希釈した希釈液を、室温で１２時間放置した後の状態を目視で観察し、○印が「均一に分散されている」を意味し、△印は「ほとんど均一に分散されている」を意味し、×印は「オイル油膜の浮きや沈殿物あり」を意味する。
潤滑剤原液（Ａ）〜（Ｃ）中のシラノール末端ジメチルポリシロキサンの粘度は、エマルジョンにイソプロピルアルコールを加えて破壊し、分離したジメチルポリシロキサンオイルをオーブンで乾燥した後、その粘度を回転粘度計にて測定した。また平均粒子径は、ＣＯＵＬＴＥＲ製 Ｍｏｄｅｌ Ｎ４ＭＤ ＳＵＢ−ＭＩＣＲＯＮ ＰＡＲＴＩＣＬＥ ＡＮＡＬＹＺＥＲにより測定した。
【００２１】
【表１】
【表２】
潤滑剤原液（Ｂ）中のジメチルポリシロキサンはａ＝２， ｂ＝０．００２０、
潤滑剤原液（Ｃ）中のジメチルポリシロキサンはａ＝２， ｂ＝０．００１３である。
【００２３】
表１の結果から明らかなように、本発明にかかる試料Ｎｏ．１〜Ｎｏ．１０は、潤滑性について、「非常に滑る」ないしは「問題なく滑る」であり、泡立ち性について、いずれも「無泡」であり、また、水希釈液の安定性について、いずれも「均一に分散されている」であり、全てにおいて優れた試験結果を得た。
【００２４】
［比較例］
従来公知の潤滑剤として、表３に示す試料Ｎｏ．１１〜１６を調製し、これら各試料および対照用の水（試料Ｎｏ．１７）について実施例１と同様に潤滑性、泡立ち性、および水希釈液の安定性の各試験を行い、それらの結果を表３に示した。試験の評価結果は、実施例１と同様に○、△、および×印で表記した。
なお、表３中の試料Ｎｏ．１１の「脂肪酸Ａ」はキレート剤（エチレンジアミン４酢酸４ナトリウム・４水塩）が６重量％配合されたオレイン酸トリエタノールアミン塩、試料Ｎｏ．１２の「脂肪酸Ｂ」はオレイン酸トリエタノールアミン塩、試料Ｎｏ．１３の「リン酸Ａ」はキレート剤（エチレンジアミン４酢酸４ナトリウム・４水塩）が６重量％配合されたアルキルリン酸モノエステルモノエタノールアミン塩、試料Ｎｏ．１４の「リン酸Ｂ」はアルキルリン酸モノエステルモノエタノールアミン塩、試料Ｎｏ．１５の「アルキルジアミンＡ」はオレイルプロピレンジアミン酢酸塩、試料Ｎｏ．１６の「アルキルジアミンＢ」はラウリルプロピレンジアミン酢酸塩である。 試料Ｎｏ．１７の水は全硬度６０ｐｐｍの水道水である。
【００２５】
【表３】
【００２７】
［実施例２］
表５に示す界面活性剤を使用して、両末端トリメチルシロキシ基封鎖ジメチルポリシロキサンを機械的シェア乳化法により水中に乳化することによりＯ／Ｗ型エマルジョンである潤滑剤原液（Ｄ）〜（Ｆ）を調製した。これらを水道水で希釈して両末端トリメチルシロキシ基封鎖ジメチルポリシロキサンの含有量（重量％）を表４に示す濃度に調整して、Ｏ／Ｗ型オルガノポリシロキサンエマルジョンである潤滑剤（試料Ｎｏ．１８〜Ｎｏ．２３）を調製した。これら各試料について、潤滑性、泡立ち性および水希釈液の安定性の試験を行い、それらの結果を表４に示した。また、試験に供した潤滑剤原液（Ｄ）〜（Ｆ）の組成ならびに特性を表５に示した。
【００２８】
【表４】
【表５】
潤滑剤原液（Ｅ）中のジメチルポリシロキサンはａ＝２．００２， ｂ＝０、
潤滑剤原液（Ｆ）中のジメチルポリシロキサンはａ＝２．００２， ｂ＝０である。
【００３０】
［実施例３］
表７に示す界面活性剤を使用して、両末端トリメチルシロキシ基封鎖ジメチルシロキサン・メチル（３−グリシドキシプロピル）シロキサン共重合体（両シロキサン単位のモル比５０：１）を機械的シェア乳化法により水中に乳化して、Ｏ／Ｗ型エマルジョンである潤滑剤原液（Ｇ）を調製した。両末端トリメチルシロキシ基封鎖ジメチルシロキサン・メチル［Ｎ−アミノエチル−３−アミノプロピル］シロキサン共重合体（両シロキサン単位のモル比５０：１）を機械的シェア乳化法により水中に乳化し酢酸で中和して、Ｏ／Ｗ型エマルジョンである潤滑剤原液（Ｈ）を調製した。これらを水道水で希釈してこれら各オルガノポリシロキサンの含有量（重量％）を表６に示す濃度に調整して、Ｏ／Ｗ型エマルジョンである潤滑剤（試料Ｎｏ．２４〜Ｎｏ．２７）を調製した。これら各試料について、潤滑性、泡立ち性および希釈液の安定性の試験を行い、それらの結果を表６に示した。また、試験に供した潤滑剤（Ｇ）および（Ｈ）の組成ならびに特性を表７に示した。
【００３１】
【表６】
【表７】
潤滑剤原液（Ｈ）中のジメチルポリシロキサンはａ＝２．００９， ｂ＝０である。
【００３３】
【発明の効果】
本発明の容器搬送コンベアベルト用潤滑剤原液は、多量の水で希釈しても良好な潤滑性を維持したまま容器搬送コンベアベルト上での泡立ちが抑制されて、希釈安定性が優れている。本発明の容器搬送コンベアベルト用潤滑剤は、良好な潤滑性を維持したまま泡立ちが抑制され、保存安定性が優れている。したがって、ビンや缶等の容器搬送コンベアベルト用潤滑剤として好適に使用できる。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is applied to the surface of a container conveyor belt by means of application, spraying or the like in a bottle or canning process of soft drink, juice, milk, liquor, drink, etc., to lubricate the bottom of the container. The present invention relates to an undiluted solution of a lubricant for improving the lubricity and a lubricant for improving the lubricity with respect to the bottom of the container by applying it to the surface of a container conveyor belt by means such as coating or spraying.
[0002]
[Prior art]
In the bottling process at factories for soft drinks, juices, milk, liquors, drinks, etc. or in the canning process at canning factories, conveyor belts are used to pack containers and transport containers such as bottles and cans when packing and closing lids. Is used. This type of container conveyor belt is usually operated continuously by automatic control. The bottles and cans filled with contents and plugged or covered are removed from the conveyor belt in the continuous or horizontal direction. In such a case, the surface of the conveyor belt that is in contact with a container such as a bottle or a can preferably has a low dynamic friction force. Further, when containers such as bottles and cans carried from a washing machine or the like are put on a conveyor belt for transporting containers during continuous operation, it is preferable that the surface of the conveyor belt has an appropriate static friction force. In order to satisfy both of these requirements, a desired lubricant is usually applied to the surface of the conveyor belt by applying, spraying, or the like. Conventionally, as a lubricant for this type of conveyor belt, a lubricant mainly containing soap (higher fatty acid sodium salt), an alkali salt of an alkyl phosphate ester or an organic salt of an alkyl diamine, or a lubricant mainly containing various surfactants Agents are known (JP-A-6-136377, JP-A-8-333592). These lubricants are usually applied by diluting a stock solution 100 to 400 times or more with water and applying or spraying the diluted solution on the surface of a conveyor belt.
[0003]
[Problems to be solved by the invention]
However, since these conventionally known lubricants mainly contain a surfactant, when applied or sprayed on the surface of the conveyor belt, a considerable amount of foam is generated on the surface of the conveyor belt. When foam is generated on the surface of the conveyor belt, the foam is not only unsightly in appearance but also adheres to bottles and cans. In the case of these bottles and cans, in particular, in the case of bottles, it is customary to inspect an empty bottle or an actual bottle inspection machine for a damaged state or poor cleaning of the bottle, and furthermore, for an insufficient capacity, etc. The foam is erroneously detected by the above-described inspection machine as damage or dirt on the bottle.
Further, these conventionally known lubricants are usually applied by diluting with a large amount of water. Among them, especially, a water diluent of soap and a water diluent of alkyl phosphate alkaline salt have components separated over time. And lacks uniformity. That is, it lacks dilution stability. Therefore, when automatically supplying the water diluent, there is a risk that the nozzle may be clogged by the water diluent, and therefore, a chelating agent may be added for the purpose of improving dilution stability, or diluted with soft water. Have to be forced.
[0004]
Accordingly, the present inventors have conducted intensive studies to solve the above-mentioned drawbacks of the known technology, and as a result, suppressed foaming on the container conveyor belt while maintaining good lubricity even when diluted with a large amount of water. As a result, the present invention has succeeded in providing a lubricant stock which maintains uniform dispersibility, that is, has improved dilution stability. SUMMARY OF THE INVENTION An object of the present invention is to suppress the generation of bubbles on a conveyor belt for transporting containers while maintaining good lubricating properties even when diluted with a large amount of water, and to improve the dilution stability of the undiluted lubricant, Another object of the present invention is to provide a lubricant in which foaming on a container conveyor belt is suppressed while maintaining the property, and storage stability is improved.
[0005]
[Means for Solving the Problems]
Such purposes are:
(A) represented by the following average unit formula R a R 1 b SiO (4 - a - b) / 2 ( wherein, R is an unsubstituted or substituted monovalent hydrocarbon group having 1 to 20 carbon atoms, or a hydrogen atom (However, at least 50 mol% of R is an unsubstituted or substituted monovalent hydrocarbon group having 1 to 20 carbon atoms), R 1 is a hydroxyl group or an alkoxy group having 1 to 10 carbon atoms, and a Is an average of 1.8 to 2.1, and b is an average of 0 to 0.1.) Organopolysiloxane: 5 to 80% by weight in the emulsion;
(B) Surfactant: 1 to 60% by weight of component (A), and (C) water: O / W type organopolysiloxane emulsion consisting of a residual amount of a lubricant for container-conveying conveyor belts, and
(A) represented by the following average unit formula R a R 1 b SiO (4 - a - b) / 2 ( wherein, R is an unsubstituted or substituted monovalent hydrocarbon group having 1 to 20 carbon atoms, or a hydrogen atom (However, at least 50 mol% of R is an unsubstituted or substituted monovalent hydrocarbon group having 1 to 20 carbon atoms), R 1 is a hydroxyl group or an alkoxy group having 1 to 10 carbon atoms, and a Is an average of 1.8 to 2.1, and b is an average of 0 to 0.1.): 0.010 to 0.5% by weight in the emulsion;
(B) Surfactant: 1 to 60% by weight of component (A), and (C) Water: O / W type organopolysiloxane emulsion consisting of a residual amount, which is achieved by a lubricant for a container conveyor belt.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
The component (A) in the undiluted solution and the lubricant for the container conveyor belt of the present invention acts to impart lubricity to the surface of the container conveyor belt. Among R in the above average unit formula, examples of the unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms include a methyl group, an ethyl group, a propyl group, a butyl group, an octyl group, a decyl group, a dodecyl group, and a tetradecyl group. Alkenyl groups such as vinyl group and allyl group; cycloalkyl groups such as cyclopentyl group and cyclohexyl group; and aryl groups such as phenyl group, tolyl group and naphthyl group. Examples of the substituted monovalent hydrocarbon group having 1 to 20 carbon atoms include an aralkyl group such as a 2-phenylethyl group, a 3,3,3-trifluoropropyl group, a 3-glycidoxypropyl group, and a 3,4-epoxy. Examples thereof include a cyclohexylethyl group, a 3-aminopropyl group, an N-aminoethyl-3-aminopropyl group, and an N-cyclohexyl-3-aminopropyl group. R may be a hydrogen atom, but 50 mol% or more of all R in the molecule is an unsubstituted or substituted monovalent hydrocarbon group having 1 to 20 carbon atoms, and is preferably lubricated. 100 mol% is an unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms. The unsubstituted monovalent hydrocarbon group is preferably an alkyl group, and more preferably a methyl group. Further, 0.05 to 5 mol% of all R in the molecule is a 3-glycidoxypropyl group, a 3,4-epoxycyclohexylethyl group, a 3-aminopropyl group, an N-aminoethyl-3-aminopropyl group. Also, organopolysiloxanes which are substituted monovalent hydrocarbon groups having a functional group such as N-cyclohexyl-3-aminopropyl group and the remainder is a methyl group are preferably used.
R 1 in the above average unit formula is a hydroxyl group or an alkoxy group having 1 to 10 carbon atoms, and examples of the alkoxy group include a methoxy group, an ethoxy group, and a propoxy group.
[0007]
The molecular structure of component (A) is preferably linear or partially branched linear.
Component (A) is dimethylpolysiloxane, methylalkylpolysiloxane, dimethylsiloxane / methylalkylsiloxane copolymer, methylphenylpolysiloxane, dimethylsiloxane / methylphenylsiloxane copolymer whose terminal is blocked with a trimethylsiloxy group or a silanol group. Typical examples are a dimethylsiloxane / methyl (aminoalkyl) siloxane copolymer and a dimethylsiloxane / methyl (epoxyalkyl) siloxane copolymer.
When the molecular structure of the component (A) is linear, it is liquid at room temperature and its viscosity at 25 ° C. is preferably 100 to 5,000,000 mPa · s, and 200 to 2,000,000 mPa · s. More preferred. When the molecular structure of the component (A) is a partially branched linear structure, it is preferably liquid at room temperature or a flexible gel. When it is liquid at normal temperature, its viscosity at 25 ° C. is preferably 100 to 5,000,000 mPa · s, more preferably 200 to 2,000,000 mPa · s.
[0008]
The component (A) is contained in the organopolysiloxane emulsion, which is a stock solution of a lubricant, in an amount of 5 to 80% by weight, preferably 25 to 60% by weight. The component (A) is contained in the organopolysiloxane emulsion as a lubricant in an amount of 0.010 to 0.5% by weight, preferably 0.015 to 0.25% by weight.
The surfactant of the component (B) acts to stably emulsify the organopolysiloxane as the component (A) in water. These include nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants.
Examples of the nonionic surfactant include glycerin fatty acid ester, sorbitan fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether, polyoxyethylene sorbitan fatty acid ester, and polyoxyethylene glycerin fatty acid ester. Here, examples of the alkyl group in the ether or ester include saturated aliphatic groups such as decyl group, lauryl group, dodecyl group, tetradecyl group, cetyl group, and stearyl group, but are not limited thereto. is not. Further, an unsaturated aliphatic group such as an oleyl group may be used instead of the alkyl group.
[0009]
Examples of the anionic surfactant include, for example, alkyl benzene sulfonate, alkyl naphthyl sulfonate, alkyl sulfonate, unsaturated aliphatic sulfonate, hydroxylated aliphatic sulfonate, alkyl ether sulfate, polyoxyethylene Alkyl ether sulfate and polyoxyethylene alkylphenyl ether sulfate are exemplified. Here, examples of the alkyl group include a saturated hydrocarbon group such as a decyl group, a lauryl group, a dodecyl group, a tetradecyl group, a cetyl group, and a stearyl group, and an oleyl group as an unsaturated aliphatic group. However, the present invention is not limited to these. Examples of the base for forming a salt include sodium, potassium, lithium, ammonium, and alkylamine, and sodium is generally used.
[0010]
Examples of the cationic surfactant include alkyltrimethylammonium salts such as octadecyltrimethylammonium chloride and hexadecyltrimethylammonium chloride; dialkyldimethylammonium salts such as dioctadecyldimethylammonium chloride, dihexadecyltridiammonium chloride and didecyldimethylammonium chloride And quaternary ammonium salt-based surfactants.
Examples of the amphoteric surfactant include betaine acetate-type amphoteric surfactants such as betaine lauryldimethylaminoacetate, betaine laurate amidopropyldimethylaminoacetate, and coconut fatty acid amidopropyldimethylaminoacetate betaine.
[0011]
The component (B) may be a single substance or a mixture of two or more surfactants of different types.
The component (B) contains 1 to 60% by weight of the organopolysiloxane as the component (A), but preferably 2 to 20% by weight. When the amount is less than 1% by weight, it is difficult to obtain a silicone emulsion composition having good stability. On the other hand, when the amount is more than 60% by weight, the storage stability of the emulsion is impaired, and foaming tends to occur when diluted with water. Not preferred.
[0012]
Water as the component (C) is a medium for emulsifying the component (A) by the action of the component (B). Examples of water include tap water, well water, ion exchange water, and distilled water. The compounding amount is the remaining amount of the component (A) and the component (B).
[0013]
The O / W-type organopolysiloxane emulsion for a lubricant stock solution of the present invention is obtained by mixing an organopolysiloxane as the component (A) and a surfactant as the component (B) in water, and mixing the resulting mixture with a homomixer, a homogenizer, It can be manufactured by a mechanical shear emulsification method in which emulsification is performed in water using an emulsifier such as a colloid mill or a combi mixer. The average particle size of the emulsion particles is preferably 500 nm or less, and more preferably 350 nm or less, from the viewpoint of stability upon dilution with water. When the organopolysiloxane is an amino group-containing organopolysiloxane such as a dimethylsiloxane / (aminoalkyl) methylsiloxane copolymer, the average particle size of the emulsion particles becomes as fine as 100 nm or less, and the emulsion particles are stable when diluted with water. Is preferred because it gives an excellent emulsion.
[0014]
Further, the O / W type organopolysiloxane emulsion for a lubricant stock solution of the present invention can be produced by an emulsion polymerization method. For example, a cyclic dimethylsiloxane oligomer having about 4 to 6 Si atoms is emulsified in water with alkylbenzenesulfonic acid and reacted at 80 ° C. to 90 ° C. for 2 hours. After cooling and holding until the phase value is reached, neutralization is carried out with an aqueous base (eg, triethanolamine, sodium hydroxide) solution. A cyclic dimethylsiloxane oligomer having about 4 to 6 Si atoms is emulsified in water with alkyltrimethylammonium chloride, and sodium hydroxide sufficient to activate the ammonium salt is added, followed by a reaction at 80 ° C to 90 ° C for 4 hours. After that, the resulting dimethylpolysiloxane is cooled and maintained until the viscosity of the produced dimethylpolysiloxane reaches an expected value, and then neutralized with an aqueous acetic acid solution. Also, a dimethylpolysiloxane having a viscosity of about 100 mPa · s, the end of which is blocked by a hydroxyl group, is emulsified and dispersed in water using an anionic surfactant with a homogenizer or the like. After reacting until the viscosity of the polysiloxane reaches a desired value, the polysiloxane is neutralized with a base (eg, triethanolamine, sodium hydroxide) aqueous solution. A small amount of organotrialkoxysilane during emulsion polymerization (eg, methyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, 3-aminopropyltrimethoxysilane, N-aminoethyl-3-aminopropyltrimethoxysilane) May be blended. Then, a partially branched linear organopolysiloxane is produced.
[0015]
The organopolysiloxane emulsion obtained by the emulsion polymerization method is fine as an emulsion particle having an average particle size of 250 nm or less and has excellent stability upon dilution with water, and thus is suitable as a stock solution for a lubricant.
[0016]
These organopolysiloxane emulsions may contain, if necessary, known emulsifying aids (eg, polyvinyl alcohol, water-soluble cellulose derivatives), preservatives, dyes, penetrants, antistatic agents, chelating agents, inorganic powders. And the like.
[0017]
The O / W-type organopolysiloxane emulsion for a lubricant according to the present invention is obtained by diluting the stock solution of the lubricant with water at a predetermined ratio so that the organopolysiloxane in the emulsion becomes 0.010 to 0.50% by weight. Can be manufactured more easily. That is, it can be produced by adding the above-mentioned lubricant stock solution to water of a predetermined ratio and stirring, or by adding water of a predetermined ratio to the above-mentioned lubricant solution and stirring it. By applying a lubricant obtained by diluting the undiluted lubricant solution with water at a predetermined magnification to the surface of the conveyor belt for container conveyance, spraying, dropping, or the like, the conveyor belt is suitable for conveying containers such as bottles and cans. Become. That is, the present invention provides a lubricating solution comprising an O / W type organopolysiloxane emulsion by diluting the above-mentioned lubricant stock solution with water at a predetermined magnification so that the organopolysiloxane in the emulsion becomes 0.010 to 0.50% by weight. An embodiment also includes a method of preparing an agent, adhering the lubricant to the surface of the conveyor belt, and transporting a container placed on the surface.
[0018]
【Example】
Hereinafter, the present invention will be described specifically with reference to Examples. The temperature at the time of the following test was 25 ° C, the viscosity was a value at 25 ° C, and% in the table means% by weight.
[Example 1]
A cyclic dimethylsiloxane oligomer having 4 to 6 Si atoms is emulsified in water with a surfactant shown in Table 2 and dodecylbenzenesulfonic acid, and polymerized at 80 ° C to 90 ° C for 2 hours. After cooling and holding until the viscosity of the blocked dimethylpolysiloxane reaches an expected value, it is neutralized with an aqueous solution of triethanolamine to thereby prepare an undiluted lubricant solution as an O / W emulsion of dimethylpolysiloxane having silanol groups blocked at both ends. (A) to (C) were prepared. These were diluted with tap water to adjust the content (% by weight) of the silanol-terminated dimethylpolysiloxane to the concentration shown in Table 1, and a lubricant (sample No. 1 to No.) which was an O / W type organopolysiloxane emulsion was prepared. .10) was prepared. For each of these samples, lubricity, foaming property, and stability test of the water diluent were performed, and the results are shown in Table 1. Table 2 shows the compositions and properties of the stock lubricant solutions (A) to (C) used in the test.
[0019]
In addition, the lubricity test, the foaming test, and the stability test of the diluted water solution were performed by the following methods. That is, the filled PET bottles are arranged on the surface of a plastic conveyor belt operating at a speed of 60 cm / min, and the adjusted lubricant is supplied at a flow rate of 30 ml / min to the surface of the conveyor belt, and the friction coefficient after 10 minutes is increased. Was measured to determine the lubricity. Further, the foaming property on the conveyor belt at that time was visually observed. Further, the emulsion diluted with tap water having a total hardness of 60 ppm to the organopolysiloxane concentration shown in Table 1 was allowed to stand at room temperature for 12 hours, and the state after the standing was visually observed.
The coefficient of friction (μ) is given by the formula:
Coefficient of friction (μ) = Tensile resistance value of spring scale (g) / PET bottle weight (g)
Was calculated by
[0020]
In the lubricity evaluation, the mark ○ indicates a coefficient of friction (μ) of 0.12 or less, meaning “very slippery”, and the mark △ indicates a coefficient of friction (μ) of 0.12 to 0.14. The "x" mark means "sliding is bad" because the coefficient of friction (.mu.) Is 0.14 or more.
In the evaluation of the foaming property, the mark “○” means “no bubbles”, the mark “△” means “foaming is observed”, and the mark “x” means “most foaming”.
Evaluation of the stability test of the diluent was performed by visually observing the state of the diluent diluted with tap water having a total hardness of 60 ppm as described above after standing at room temperature for 12 hours. The symbol “「 ”means“ substantially uniformly dispersed ”, and the symbol“ x ”means“ floating oil oil film or sediment ”.
The viscosity of the silanol-terminated dimethylpolysiloxane in the lubricant stock solutions (A) to (C) is determined by adding isopropyl alcohol to the emulsion, breaking the emulsion, drying the separated dimethylpolysiloxane oil in an oven, and measuring the viscosity with a rotational viscometer. Was measured. The average particle size was measured by Model N4MD SUB-MICRON PARTICLE ANALYZER manufactured by COULTER.
[0021]
[Table 1]
[Table 2]
The dimethylpolysiloxane in the lubricant stock solution (B) has a = 2, b = 0.0020,
The dimethylpolysiloxane in the lubricant stock solution (C) has a = 2 and b = 0.0013.
[0023]
As is clear from the results in Table 1, the sample No. according to the present invention. 1 to No. 10 is "very slippery" or "slids without problem" in terms of lubricity, all are "foam free" in terms of foaming properties, and all are "uniformly dispersed" in terms of the stability of the water diluent. Have been performed ", and excellent test results were obtained in all cases.
[0024]
[Comparative example]
As a conventionally known lubricant, sample No. 3 shown in Table 3 was used. 11 to 16 were prepared, and each of the samples and the control water (sample No. 17) were subjected to the respective tests of lubricity, foaming property, and stability of the water diluent in the same manner as in Example 1, and the results were obtained. Are shown in Table 3. The evaluation results of the test were indicated by ○, Δ, and × as in Example 1.
In Table 3, the sample No. The “fatty acid A” of No. 11 was triethanolamine oleate containing 6% by weight of a chelating agent (ethylenediaminetetraacetic acid tetrasodium tetrahydrate), sample No. 11 12, "fatty acid B" was oleic acid triethanolamine salt, sample No. Sample No. 13 “phosphoric acid A” was an alkyl phosphate monoester monoethanolamine salt containing 6% by weight of a chelating agent (ethylenediaminetetraacetic acid tetrasodium tetrahydrate). No. 14 “phosphoric acid B” was an alkyl phosphoric acid monoester monoethanolamine salt, sample No. No. 15 “alkyl diamine A” was oleyl propylene diamine acetate, sample no. 16 "alkyl diamine B" is lauryl propylene diamine acetate. Sample No. Water No. 17 is tap water having a total hardness of 60 ppm.
[0025]
[Table 3]
[0027]
[Example 2]
Using the surfactants shown in Table 5, the dimethylpolysiloxane having trimethylsiloxy groups at both ends was emulsified in water by a mechanical shear emulsification method to obtain O / W emulsion lubricant stock solutions (D) to (F). ) Was prepared. These were diluted with tap water to adjust the content (% by weight) of the dimethylpolysiloxane endblocked with trimethylsiloxy groups at both ends to the concentration shown in Table 4, and the lubricant (sample No. .18 to No. 23) were prepared. Each of these samples was tested for lubricity, foaming property and stability of the water diluent, and the results are shown in Table 4. Table 5 shows the compositions and characteristics of the stock lubricant solutions (D) to (F) used in the test.
[0028]
[Table 4]
[Table 5]
Dimethylpolysiloxane in the lubricant stock solution (E) has a = 2.002, b = 0,
The dimethylpolysiloxane in the lubricant stock solution (F) has a = 0.002 and b = 0.
[0030]
[Example 3]
Using the surfactants shown in Table 7, a dimethylsiloxane-methyl (3-glycidoxypropyl) siloxane copolymer (both siloxane units in a molar ratio of 50: 1) having a trimethylsiloxy group at both ends was mechanically sheared and emulsified. It was emulsified in water by the method to prepare a lubricant stock solution (G) as an O / W emulsion. A dimethylsiloxane-methyl [N-aminoethyl-3-aminopropyl] siloxane copolymer (both siloxane units at a molar ratio of 50: 1) having a trimethylsiloxy group blocked at both terminals is emulsified in water by a mechanical shear emulsification method, and the mixture is emulsified with acetic acid. Then, a lubricant stock solution (H) as an O / W emulsion was prepared. These were diluted with tap water to adjust the content (% by weight) of each of these organopolysiloxanes to the concentration shown in Table 6, and a lubricant as an O / W emulsion (Sample Nos. 24 to 27) Was prepared. Each of these samples was tested for lubricity, foaming properties and stability of the diluent, and the results are shown in Table 6. Table 7 shows the compositions and properties of the lubricants (G) and (H) used in the test.
[0031]
[Table 6]
[Table 7]
The dimethylpolysiloxane in the lubricant stock solution (H) has a = 2.009 and b = 0.
[0033]
【The invention's effect】
The undiluted lubricant solution for a container transport conveyor belt of the present invention suppresses foaming on the container transport conveyor belt while maintaining good lubricity even when diluted with a large amount of water, and has excellent dilution stability. ADVANTAGE OF THE INVENTION The lubricant for container conveyor belts of this invention suppresses foaming, maintaining favorable lubricity, and is excellent in storage stability. Therefore, it can be suitably used as a lubricant for conveyor belts for transporting containers such as bottles and cans.
Claims (4)
ＲａＲ１ ｂＳｉＯ（４ ― ａ ― ｂ）／２（式中、Ｒは炭素原子数１〜２０の非置換もしくは置換１価炭化水素基、または、水素原子であり（但し、Ｒ中の少なくとも５０モル％は炭素原子数１〜２０の非置換もしくは置換１価炭化水素基である）、Ｒ１は、水酸基または炭素原子数１〜１０のアルコキシ基であり、ａは平均１．８〜２．１であり、ｂは平均０〜０．１である。）で示されるオルガノポリシロキサン：エマルジョン中５〜８０重量％、
（Ｂ）界面活性剤：成分（Ａ）の１〜６０重量％、および
（Ｃ）水：残量
からなるＯ／Ｗ型オルガノポリシロキサンエマルジョンである容器搬送コンベアベルト用潤滑剤原液。(A) represented by the following average unit formula R a R 1 b SiO (4 - a - b) / 2 ( wherein, R is an unsubstituted or substituted monovalent hydrocarbon group having 1 to 20 carbon atoms, or a hydrogen atom (However, at least 50 mol% of R is an unsubstituted or substituted monovalent hydrocarbon group having 1 to 20 carbon atoms), R 1 is a hydroxyl group or an alkoxy group having 1 to 10 carbon atoms, and a Is an average of 1.8 to 2.1, and b is an average of 0 to 0.1.) Organopolysiloxane: 5 to 80% by weight in the emulsion;
(B) Surfactant: 1 to 60% by weight of component (A), and (C) water: a lubricant stock solution for container-conveying conveyor belts, which is an O / W-type organopolysiloxane emulsion consisting of the remaining amount.
ＲａＲ１ ｂＳｉＯ（４ ― ａ ― ｂ）／２（式中、Ｒは炭素原子数１〜２０の非置換もしくは置換１価炭化水素基であり、Ｒ１は水素原子、水酸基または炭素原子数１〜１０のアルコキシ基であり、ａは平均１．８〜２．１であり、ｂは平均０〜０．１である。）で示されるオルガノポリシロキサン：エマルジョン中０．０１０〜０．５０重量％、
（Ｂ）界面活性剤：成分（Ａ）の１〜６０重量％、および
（Ｃ）水：残量
からなるＯ／Ｗ型オルガノポリシロキサンエマルジョンである容器搬送コンベアベルト用潤滑剤。(A) represented by the following average unit formula R a R 1 b SiO (4 - a - b) / 2 ( wherein, R is unsubstituted or substituted monovalent hydrocarbon group having a carbon number of 1 to 20, R 1 is hydrogen Which is an atom, a hydroxyl group or an alkoxy group having 1 to 10 carbon atoms, a is an average of 1.8 to 2.1, and b is an average of 0 to 0.1. 0.010-0.50% by weight,
(B) Surfactant: 1 to 60% by weight of component (A), and (C) water: a lubricant for a container conveyor belt, which is an O / W type organopolysiloxane emulsion consisting of the remaining amount.
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| JP2003009680A JP2004217866A (en) | 2003-01-17 | 2003-01-17 | Undiluted lubricant solution for container carrying conveyer belt and lubricant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003009680A JP2004217866A (en) | 2003-01-17 | 2003-01-17 | Undiluted lubricant solution for container carrying conveyer belt and lubricant |
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| JP2004217866A true JP2004217866A (en) | 2004-08-05 |
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