JPH0336061B2 - - Google Patents
Info
- Publication number
- JPH0336061B2 JPH0336061B2 JP58096562A JP9656283A JPH0336061B2 JP H0336061 B2 JPH0336061 B2 JP H0336061B2 JP 58096562 A JP58096562 A JP 58096562A JP 9656283 A JP9656283 A JP 9656283A JP H0336061 B2 JPH0336061 B2 JP H0336061B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- film
- particles
- acid
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002245 particle Substances 0.000 claims description 93
- -1 fatty acid monocarboxylic acid Chemical class 0.000 claims description 47
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 42
- 239000000194 fatty acid Substances 0.000 claims description 42
- 229930195729 fatty acid Natural products 0.000 claims description 42
- 229920000728 polyester Polymers 0.000 claims description 33
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 27
- 150000004665 fatty acids Chemical class 0.000 claims description 26
- 229920006267 polyester film Polymers 0.000 claims description 15
- 230000003746 surface roughness Effects 0.000 claims description 13
- 125000004432 carbon atom Chemical group C* 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 12
- 230000003068 static effect Effects 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 6
- 230000005291 magnetic effect Effects 0.000 description 48
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 41
- 238000000034 method Methods 0.000 description 40
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 14
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 239000010410 layer Substances 0.000 description 10
- 229920000139 polyethylene terephthalate Polymers 0.000 description 10
- 239000005020 polyethylene terephthalate Substances 0.000 description 10
- 239000002585 base Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 238000000926 separation method Methods 0.000 description 9
- 238000006116 polymerization reaction Methods 0.000 description 8
- 239000002002 slurry Substances 0.000 description 8
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005886 esterification reaction Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 238000006068 polycondensation reaction Methods 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 239000011362 coarse particle Substances 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 4
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 4
- 230000005294 ferromagnetic effect Effects 0.000 description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 4
- 229910052622 kaolinite Inorganic materials 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- 229910002012 Aerosil® Inorganic materials 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000005809 transesterification reaction Methods 0.000 description 3
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 2
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- VSGNNIFQASZAOI-UHFFFAOYSA-L calcium acetate Chemical compound [Ca+2].CC([O-])=O.CC([O-])=O VSGNNIFQASZAOI-UHFFFAOYSA-L 0.000 description 2
- 239000001639 calcium acetate Substances 0.000 description 2
- 235000011092 calcium acetate Nutrition 0.000 description 2
- 229960005147 calcium acetate Drugs 0.000 description 2
- 229940043430 calcium compound Drugs 0.000 description 2
- 150000001674 calcium compounds Chemical class 0.000 description 2
- FIASKJZPIYCESA-UHFFFAOYSA-L calcium;octacosanoate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCCCCCCCCCCCC([O-])=O FIASKJZPIYCESA-UHFFFAOYSA-L 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000003851 corona treatment Methods 0.000 description 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 2
- KZTYYGOKRVBIMI-UHFFFAOYSA-N diphenyl sulfone Chemical compound C=1C=CC=CC=1S(=O)(=O)C1=CC=CC=C1 KZTYYGOKRVBIMI-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- XMHIUKTWLZUKEX-UHFFFAOYSA-N hexacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O XMHIUKTWLZUKEX-UHFFFAOYSA-N 0.000 description 2
- VKOBVWXKNCXXDE-UHFFFAOYSA-N icosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCC(O)=O VKOBVWXKNCXXDE-UHFFFAOYSA-N 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 150000002642 lithium compounds Chemical class 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 150000002681 magnesium compounds Chemical class 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000012170 montan wax Substances 0.000 description 2
- NOSILEXHUBACKG-UHFFFAOYSA-N n-octadecylacetamide Chemical group CCCCCCCCCCCCCCCCCCNC(C)=O NOSILEXHUBACKG-UHFFFAOYSA-N 0.000 description 2
- ISYWECDDZWTKFF-UHFFFAOYSA-N nonadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCCC(O)=O ISYWECDDZWTKFF-UHFFFAOYSA-N 0.000 description 2
- UTOPWMOLSKOLTQ-UHFFFAOYSA-N octacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O UTOPWMOLSKOLTQ-UHFFFAOYSA-N 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 2
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- YKIBJOMJPMLJTB-UHFFFAOYSA-M sodium;octacosanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCCCCCCCCCCCC([O-])=O YKIBJOMJPMLJTB-UHFFFAOYSA-M 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 2
- 238000007738 vacuum evaporation Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 1
- XCSGHNKDXGYELG-UHFFFAOYSA-N 2-phenoxyethoxybenzene Chemical compound C=1C=CC=CC=1OCCOC1=CC=CC=C1 XCSGHNKDXGYELG-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- DPUOLQHDNGRHBS-UHFFFAOYSA-N Brassidinsaeure Natural products CCCCCCCCC=CCCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- 229920001634 Copolyester Polymers 0.000 description 1
- ORAWFNKFUWGRJG-UHFFFAOYSA-N Docosanamide Chemical compound CCCCCCCCCCCCCCCCCCCCCC(N)=O ORAWFNKFUWGRJG-UHFFFAOYSA-N 0.000 description 1
- URXZXNYJPAJJOQ-UHFFFAOYSA-N Erucic acid Natural products CCCCCCC=CCCCCCCCCCCCC(O)=O URXZXNYJPAJJOQ-UHFFFAOYSA-N 0.000 description 1
- 235000021353 Lignoceric acid Nutrition 0.000 description 1
- CQXMAMUUWHYSIY-UHFFFAOYSA-N Lignoceric acid Natural products CCCCCCCCCCCCCCCCCCCCCCCC(=O)OCCC1=CC=C(O)C=C1 CQXMAMUUWHYSIY-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- WXKBCRLWFYDDFG-UHFFFAOYSA-N S(=O)(=O)(O)C1=C(O)C=CC=C1O.[Na] Chemical compound S(=O)(=O)(O)C1=C(O)C=CC=C1O.[Na] WXKBCRLWFYDDFG-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 1
- BWVAOONFBYYRHY-UHFFFAOYSA-N [4-(hydroxymethyl)phenyl]methanol Chemical compound OCC1=CC=C(CO)C=C1 BWVAOONFBYYRHY-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- FNGGVJIEWDRLFV-UHFFFAOYSA-N anthracene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=CC3=C(C(O)=O)C(C(=O)O)=CC=C3C=C21 FNGGVJIEWDRLFV-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- XMEXYUIRYSLNKT-UHFFFAOYSA-N benzene-1,3-dicarboxylic acid;sodium Chemical compound [Na].OC(=O)C1=CC=CC(C(O)=O)=C1 XMEXYUIRYSLNKT-UHFFFAOYSA-N 0.000 description 1
- 150000001558 benzoic acid derivatives Chemical class 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- AAEHPKIXIIACPQ-UHFFFAOYSA-L calcium;terephthalate Chemical compound [Ca+2].[O-]C(=O)C1=CC=C(C([O-])=O)C=C1 AAEHPKIXIIACPQ-UHFFFAOYSA-L 0.000 description 1
- 238000007707 calorimetry Methods 0.000 description 1
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000000392 cycloalkenyl group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- BTVWZWFKMIUSGS-UHFFFAOYSA-N dimethylethyleneglycol Natural products CC(C)(O)CO BTVWZWFKMIUSGS-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- DPUOLQHDNGRHBS-KTKRTIGZSA-N erucic acid Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-KTKRTIGZSA-N 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- FARYTWBWLZAXNK-WAYWQWQTSA-N ethyl (z)-3-(methylamino)but-2-enoate Chemical compound CCOC(=O)\C=C(\C)NC FARYTWBWLZAXNK-WAYWQWQTSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- HSEMFIZWXHQJAE-UHFFFAOYSA-N hexadecanamide Chemical compound CCCCCCCCCCCCCCCC(N)=O HSEMFIZWXHQJAE-UHFFFAOYSA-N 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 229940051250 hexylene glycol Drugs 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- XIXADJRWDQXREU-UHFFFAOYSA-M lithium acetate Chemical compound [Li+].CC([O-])=O XIXADJRWDQXREU-UHFFFAOYSA-M 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 150000002697 manganese compounds Chemical class 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 1
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 1
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000003891 oxalate salts Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- CNVZJPUDSLNTQU-SEYXRHQNSA-N petroselinic acid Chemical compound CCCCCCCCCCC\C=C/CCCCC(O)=O CNVZJPUDSLNTQU-SEYXRHQNSA-N 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229940045870 sodium palmitate Drugs 0.000 description 1
- POZWVHISDXHZLV-KVVVOXFISA-M sodium;(z)-docos-13-enoate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCCCCCC([O-])=O POZWVHISDXHZLV-KVVVOXFISA-M 0.000 description 1
- CVYDEWKUJFCYJO-UHFFFAOYSA-M sodium;docosanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCCCCCC([O-])=O CVYDEWKUJFCYJO-UHFFFAOYSA-M 0.000 description 1
- GGXKEBACDBNFAF-UHFFFAOYSA-M sodium;hexadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCC([O-])=O GGXKEBACDBNFAF-UHFFFAOYSA-M 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- QZZGJDVWLFXDLK-UHFFFAOYSA-N tetracosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCC(O)=O QZZGJDVWLFXDLK-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 1
- 235000019386 wax ester Nutrition 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
〔発明の技術分野〕
本発明は、微細な粒子を含有する、表面の平坦
性と滑性と接着性とが優れた配向ポリエステルフ
イルムに関する。更に詳しくは、ポリエステル合
成時に使用する触媒、着色防止剤などの一部また
は全部を合成反応過程で析出せしめる、いわゆる
内部粒子、および／または不活性粒子、および特
定の高級脂肪酸の金属塩および／または高級脂肪
酸のアミド化合物の各特定量を含有し、粒子が微
分散された、表面の平坦性および滑性がそれぞれ
表面粗さ（Ra）と静摩擦係数（μs）の特定の範
囲を同時に満たし、かつ、接着性に優れた配向ポ
リエステルフイルムに関するものである。
〔従来技術〕
近年、配向ポリエステルフイルムは、磁気テー
プや磁気デイスクなどの磁気記録媒体用、コンデ
ンサー用、写真用、マイクロフイルム用、包装用
などの分野への進展が著しい。
これら配向ポリエステルフイルムの各用途に於
いては、表面の厳しい制御が要望されている。す
なわち、磁気テープや磁気デイスクなどの磁気記
録媒体用には記録の乱れを防ぐために、また、コ
ンデンサー用には絶縁欠陥を防ぐために、また、
写真・マイクロフイルム用には画質の乱れを防ぐ
ために、また、包装用には透明性や美観を損わな
いため、配向ポリエステルフイルムの表面は平坦
である必要がある。また、これらの全ての用途に
共通して、その用途へ製品化する場合の巻出・加
工・巻取・スリツト時と、製品化後の使用時のい
ずれの際にも、作業性と品質の両面から、ポリエ
ステルフイルムの表面は滑性である必要がある。
また、滑性は、配向ポリエステルフイルムを製膜
する際にも、破れを少なく安定して経済的に生産
する視点からも重要な特性である。ところが、上
に待望される平坦性と滑性は、本来、相反する表
面の性質である。すなわち、両性質を同時に満た
すことは極めて難しく、平坦性を優先すれば滑性
をある程度犠牲にせざるを得ず、一方、滑性を優
先すれば平坦性をある程度犠牲にせざるを得な
い。
従来、平坦性と滑性を両立せしめる目的で、大
別すると、次のような技術が提案されている。
ポリエステル合成時に使用する触媒、着色防
止剤の一部または全部を反応の過程で析出せし
め、微粒子としてフイルム表面に存在させる方
法（以下、内部粒子生成方式という）。
二酸化チタン、タルク、カオリナイト、炭酸
カルシウム、酸化ケイ素などのポリエステル合
成反応系に不活性粒子を添加する方法（以下、
外部粒子添加方式という）。
との併用
中性または一部中和したモンタンワツクス塩
もしくはモンタンワツクスエステル塩を添加す
る方法（特開昭56−139551号公報）やエステル
生成物を添加する方法（特開昭57−195143号公
報）。（以下、有機滑剤添加方式という）。
しかし、このような従来提案されている技術に
よる配向ポリエステルフイルムは、
内部粒子生成方式は、粒子間の凝集力が強い
ためか、粗大粒子が多く混在するゆえ、該粗大
粒子がフイルム表面の平坦性を悪化させ、さら
に滑性が不十分という欠点があり、
外部粒子添加方式は、粒子の二次凝集や平均
粒度の粗さや粗大粒子の混入が不可避であるた
め、平坦性と滑性を両立させることができない
という欠点があり、
内部粒子生成方式と外部粒子添加方式を併用
したところでそれぞれの欠点は克服しきれず、
有機滑剤添加方式のうち、特開昭56−139551
号公報の技術では、有機溶剤がフイルム表面に
ブリードアウトしてくるため、滑性に欠けると
いう欠点があり、特開昭57−195143号公報の技
術では、有機滑剤を重合時添加した場合はゲル
化してしまうため、また、ねり込み添加（重合
した後の原料に後で添加するやり方）した場合
には、溶融押出時に粘度が急激に低下してしま
うため、いずれも満足な表面特性（平坦・滑
性）が得られない欠点があり、
これらのいずれのフイルムを用いて磁気テープ
としても、磁気テープの走行性と電磁変換特性を
両立し得ない欠点があつた。
〔発明の目的〕
本発明の目的は、上記欠点のないもの、すなわ
ち、表面の平坦性、滑性、接着性の３特性が共に
優れた配向ポリエステルフイルムを提供せんとす
るものである。
〔発明の構成〕
本発明は、ポリエステル100重量部に、
Ａ 内部粒子または平均粒径が0.1〜3μｍの不活
性粒子0.001〜１重量部と、
Ｂ 主成分が炭素原子数19〜33の高級脂肪酸モノ
カルボン酸からなる化合物の金属塩または部分
金属塩化合物の少なくとも一種、もしくは主成
分が炭素原子数18〜33の高級脂肪酸アミドを
0.005〜２重量部とを
含有してなり、かつ、表面粗さRaが0.003〜
0.025μｍ、静摩擦係数μsが0.10〜0.70である配向
ポリエステルフイルムを特徴とするものである。
本発明におけるポリエステルとは、芳香族ジカ
ルボン酸を主たる酸成分とし、アルキレングリコ
ールを主たるグリコール成分とするポリエステル
である。
芳香族ジカルボン酸の具体例としては、テレフ
タル酸、イソフタル酸、ナフタレンジカルボン
酸、ジフエノキシエタンジカルボン酸、ジフエニ
ルジカルボン酸、ジフエニルエーテルジカルボン
酸、ジフエニルスルホンジカルボン酸、ジフエニ
ルケトンジカルボン酸、アンスラセンジカルボン
酸、α，β−ビス（２−クロルフエノキシ）エタ
ン−４，4′−ジカルボン酸などが挙げられる。こ
れらのうち、特にテレフタル酸が望ましい。
アルキレングリコールの具体例としては、エチ
レ−グリコール、トリメチレングリコール、テト
ラメチレングリコール、ペンタメチレングリコー
ル、ヘキサメチレングリコール、ヘキシレングリ
コール等が挙げられる。これらのうち、特にエチ
レングリコールが望ましい。
もちろん、これらのポリエステルは、ホモポリ
エステルであつてもコポリエステル（共重合ポリ
エステル）であつてもよく、共重合する成分とし
ては、たとえば、ジエチレングリコール、プロピ
レングリコール、ネオペンチルグリコール、ポリ
アルキレングリコール、ｐ−キシリレングリコー
ル、１，４−シクロヘキサンジメタノール、５−
ナトリウムスルホレゾルシンなどのジオール成
分、アジピン酸、セバシン酸、フタル酸、イソフ
タル酸、２，６−ナフタリンジカルボン酸、５−
ナトリウムイソフタル酸などのジカルボン酸成
分、トリメリツト酸、ピロメリツト酸などの多官
能ジカルボン酸成分、ｐ−オキシエトキシ安息香
酸などのオキシカルボン酸成分などが挙げられ
る。
なお、上記ポリエステル中には、勿論、公知の
添加剤、たとえば、帯電防止剤、熱安定剤、紫外
線吸収剤など、本発明の効果を損わない量で添加
されていてもよい。
本発明における内部粒子とは、ポリエステルの
合成時に添加したカルシウム化合物、マグネシウ
ム化合物およびリチウム化合物の少なくとも一種
の化合物とポリエステルを構成する成分とが結合
して生成する粒子である。
なお、本発明の内部粒子中には、本発明の効果
を妨げない範囲でリン元素および微量の他の金属
成分、たとえば、亜鉛、コバルト、あるいはアン
チモン、ゲルマニウム、チタンなどが含まれてい
てもよい。
この内部粒子の含有量測定法の一例について説
明する。
ポリエチレンテレフタレートをメタノールで十
分洗浄し表面付着物を取り除き水洗して乾燥した
300ｇのサンプルにＯ−クロルフエノール2.7Kgを
加えて撹拌しつつ100℃まで昇温させ、昇温後さ
らに１時間そのまま放置してポリエチレンテレフ
タレート部分を溶解させる。ただし、高度に結晶
化している場合などでポリエチレンテレフタレー
ト部分が溶解しない場合には、一度溶融させて急
冷した後に前記の溶解操作を行なう。
次いでポリエチレンテレフタレート中に含有さ
れているゴミなどの粗大不溶物をＧ−１ガラスフ
イルターで別し、除去し、この上物の重量は
試料重量から差し引く。
日立製作所製分離用超遠心機40p型にローター
RP30を装備し、セル１個当りに前記ガラスフイ
ルター別後の溶液30c.c.を注入後、ローターを
4500rpmにて回転させ、回転異常のないことを確
認後、ローター中を真空にし、30000rpmに回転
数を上げ、この回転数にて粒子の遠心分離を行な
う。
分離の完了はほぼ40分後であるが、この確認が
必要あれば分離後の液の37ｍμにおける光線透過
率が分離前のそれに比し、高い値の一定値になる
ことで行なう。分離後、上澄液を傾斜法で除去し
分離粒子を得る。
分離粒子には分離が不十分なことに起因するポ
リエステル分の混入があり得るので、採取した該
粒子に常温のｏ−クロルフエノールを加えほぼ均
一懸濁後、再び超遠心分離機処理を行なう。
この操作は後述の粒子を乾燥後該粒子を走査型
差動熱量分析を行なつて、ポリマに相当する融解
ピークが検出できなくなるまで繰り返す必要があ
る。最後に、このようにして得た分離粒子を120
℃、16時間真空乾燥して秤量する。
なお、前記操作で得られた分離粒子は内部粒子
と外部粒子の両者を含んでいる。このため内部粒
子量と外部粒子量を個別に求める必要があり、ま
ず前記分離粒子について金属分の定量分析を行な
いCa、Liの含有量およびCa、Li以外の金属含有
量を求めておく。次いで該分離粒子を３倍モルの
エチレングリコール中で６時間以上還流加熱した
のち、200℃以上になるようにエチレングリコー
ルを留去して解重合すると内部粒子だけが溶解す
る。残つた粒子を遠心分離して得られた分離粒子
を乾燥秤量し外部粒子量とし、最初の合計分離粒
子量との差を内部粒子量とする。
なお、前記解重合が完全に行なわれたかを確認
するため解重合後の分離粒子について金属分の定
量分析を行ない、これらの操作を繰返すことによ
り粒子量測定精度を高めることができる。
本発明における不活性粒子とは、種類としては
元素周期律表第、、族の元素の酸化物もし
くは無機塩から選ばれる化学的に不活性なもの
で、たとえば合成または天然品として得られる炭
酸カルシウム、湿式シリカ（二酸化ケイ素）、乾
式シリカ（二酸化ケイ素）、ケイ酸アルミニウム
（カオリナイト）、硫酸バリウム、リン酸カルシウ
ム、タルク、二酸化チタン、酸化アルミニウム、
水酸化アルミニウム、テレフタル酸カルシウム、
ケイ酸カルシウムなどが挙げられる。この不活性
粒子の平均粒径は、0.1〜3μｍである必要があり、
好ましくは0.1〜2μｍである。0.1μｍ未満の場合、
フイルムの滑性が不十分となり、3μｍを越すと
フイルムの平坦性が悪くなる。
なお、不活性粒子の粗大粒子の除去および粒度
調整は、種々の方法、例えば風ヒ分級、エチレン
グリコールスラリーまたは水スラリーとして自然
沈降分離、遠心沈降分離、サンドミル粉砕などの
粉砕および／または分級処理方法によつて行なう
ことができる。
本発明においては、上記内部粒子または上記不
活性粒子の少なくとも一方を含有していなければ
ならない。含有量は、内部粒子または不活性粒子
のいずれか一方のみの場合は、ポリエステル100
重量部に対して、0.001〜１重量部である必要が
あり、好ましくは0.01〜0.5重量部である。また、
内部粒子と不活性粒子の両者を含有する場合は、
両者の合計の含有量がポリエステル100重量部に
対し、0.001〜２重量部、好ましくは0.002〜１重
量部であるのが望ましい。含有量が上記した範囲
の下限未満であると、フイルム−フイルム間もし
くは、フイルム−金属間の摩擦係数が大きくな
り、滑性が悪くなり、一方、含有量が上記した範
囲の上限を越えると、粗大粒子の発生が多くな
り、表面粗さが大きくなつて、平坦性が悪くな
る。以上のような、含有量の適正範囲をはずれた
フイルムを用いて磁気テープとなした場合、走行
性と電磁変換特性が両立しなくなる。
本発明における主成分として炭素原子数19〜33
の高級脂肪族モノカルボン酸からなる化合物の金
属塩化合物または部分金属塩化合物（以下、高級
脂肪酸金属塩化合物という）とは、具体例として
ノナデカン酸、アラキン酸、カルナウバ酸、リグ
ノセリン酸、セロチン酸、モンタン酸、ペトロセ
リン酸、オレイン酸、エルカ酸、リノール酸およ
びこれらを含む酸混合物などが挙げられ、金属種
としてはアルカリおよび／またはアルカリ土類金
属例えば、リチウム、ナトリウム、カリウム、バ
リウム、マグネシウム、カルシウム、ストロンチ
ウムが挙げられ、特に好ましい化合物としてはモ
ンタン酸カルシウム、モンタン酸ナトリウム、エ
ルカ酸ナトリウムなどが挙げられる。
ここで主成分とは、その化合物が80重量％以上
含有されたものをいう。
なお、該高級脂肪酸金属塩化合物の脂肪酸の炭
素原子数が19未満の場合はフイルム表面へのブリ
ードアウトが激しく、接着性が著しく劣り、炭素
原子数が33を越える場合は滑性が得られない。該
高級脂肪酸金属塩化合物の含有量は、ポリエステ
ル100重量部に対して、0.005〜２重量部である必
要があり、好ましくは0.01〜１重量部、さらに好
ましくは0.05〜0.5重量部である。上記含有量が
0.005重量部未満の場合はフイルムの平坦性・滑
性がほとんど得られなくなり、また２重量部を越
える場合はフイルム表面へのブリードアウトが激
しくなつて接着性が著しく劣つてしまう。
本発明における、高級脂肪酸アミドとは、主成
分が炭素原子数18〜33の高級脂肪酸アミドのこと
である、具体例としては、ステアリン酸アミド、
オレイン酸アミド、エルカ酸アミド、ベヘン酸ア
ミドが挙げられ、特に、エルカ酸アミドが望まし
い。ここで主成分とは、炭素原子数18〜33の高級
脂肪酸を80重量％以上含有されたものをいう。ま
た、上記具体例の他の、置換された脂肪酸アミド
として、一般式
〔式中、R1はアルキルまたはアルケニルまたは
シクロアルケニル基、R2はＨまたはアルキル基、
R3はアルキル基、R1ならびにR3はオキシ基また
はアルコキシ基を含有していてもよい。但し、炭
素原子数の合計が18〜33である〕で示された化合
物を用いてもよい。具体例としては、酢酸−Ｎ−
ステアリルアミド、プロピオン酸−Ｎ−メチル−
Ｎ−ステアリルアミド等が挙げられる。
ここで脂肪酸の炭素原子数が18未満の場合はフ
イルム表面へのブリードアウトが激しく、接着性
が著しく劣り、炭素原子数が33を越える場合は滑
性が得られない。
該高級脂肪酸アミドの含有量は、ポリエステル
100重量部に対して、0.005〜２重量部である必要
があり、好ましくは、0.01〜１重量部、さらに好
ましくは、0.05〜0.5重量部である。上記含有量
が0.005重量部未満の場合は、フイルムの平坦
性・滑性が劣り、また、２重量部を越える場合
は、フイルム表面へのブリードアウトが激しくな
つて接着性が劣る。
本発明においては、上記高級脂肪酸金属塩化合
物と上記高級脂肪酸アミドの少なくともどちらか
を規定量含有していなければ、本発明の効果が発
現しなくなり、磁気テープとなした時の走行性と
電磁変換特性が両立しなくなる。なお、高級脂肪
酸金属塩化合物と高級脂肪酸アミドの両者を含有
する場合は、両者の合計の含有量がポリエステル
100重量部に対し、0.005〜2.5重量部、好ましく
は、0.002〜１重量部であることが望ましい。
以上述べてきたように、本発明配向ポリエステ
ルフイルムは、
(A) 内部粒子（以下、単にと略称する）または
不活性粒子（以下、単にと略称する）と
(B) 高級脂肪酸金属塩化合物（以下、単にと略
称する）または高級脂肪酸アミド（以下、単に
と略称する）
とを含有するものであり、上記Ａ項の粒子（以
下、単に粒子源(A)という）と、Ｂ項の含有物（以
下、単に高級脂肪酸化合物(B)という）とが必ず両
方とも含有していることが必要である。粒子源(A)
のみあるいは高級脂肪酸化合物(B)のみを含有して
いる場合は本発明の効果は発現しない。つまり、
粒子源(A)、高級脂肪酸化合物(B)とを特定量含有
し、かつ特定の表面粗さと静摩擦係数を有する配
向ポリエステルフイルムである。好ましい粒子源
(A)と、高級脂肪酸化合物(B)の組合せは、＋＋
、＋＋＋、＋、＋、＋で
ある（ここで、“＋”とは、併用する意味であ
る）。なお、粒子源(A)と高級脂肪酸化合物(B)とが
必ず双方とも含有している必要がある理由は、高
級脂肪酸化合物(B)がポリエステル中において、粒
子源(A)を超微分散化せしめる相剰作用があるから
である。
本発明における表面粗さ（Ra）とは、後述す
る方法によつて測定されるものであるが、その範
囲は本発明においては0.003〜0.025μｍである必
要があり、好ましくは0.005〜0.023μｍ、更に好
ましくは0.005〜0.018μｍ、最も好ましくは0.005
〜0.014μｍである。該表面粗さ（Ra）が0.003μｍ
未満だと平坦すぎてスリキズが発生しやすくな
る。一方、Raが0.025μを越えると平坦性が悪い。
そして、このようにRaが好適範囲をはずれると、
そのフイルムを用いた磁気テープは、電磁変換特
性と走行性が両立しない。
本発明における静摩擦係数（μs）とは、後述す
る方法によつて測定されるものであるが、その範
囲は、0.10〜0.70である必要があり、好ましくは
0.20〜0.60、更に好ましくは0.30〜0.55である。
該静摩擦係数（μs）が0.10未満であると作業時
の迷い巻きが出る。一方、0.70を越えると、これ
は滑性が不足し、加工時の高速走行性が悪化す
る。
本発明においては、フイルムは配向している必
要がある。配向フイルムでないと前記表面粗さと
静摩擦係数をともに前記範囲にすることが難しい
し、また厚みムラ、剛性、寸法安定性が致命的に
悪い。配向の形式は、一軸配向、二軸配向など、
公知の配向形式から選べるが、二軸軸配向形式が
望ましい。配向の程度は、一軸配向の場合、面内
複屈折Δnが0.02〜0.25、好ましくは0.06〜0.2が望
ましく、二軸配向の場合、面内複屈折Δnが０〜
0.15、好ましくは０〜0.10、面内屈折率の和が3.2
〜3.42、厚さ方向屈折率比が0.935〜0.980が望ま
しい。ここで言う面内複屈折率Δnとは、ナトリ
ウムＤ線を用いたアツベ屈折計で25℃、65％RH
で測定したフイルムのタテ方向とヨコ方向と厚さ
方向の各屈折率のうち、タテ方向とヨコ方向の屈
折率の差の絶対値であり、また、面内屈折率の和
とは、タテ方向屈折率とヨコ方向屈折率の和であ
り、また、厚さ方向屈折率とは、フイルムの厚さ
方向の屈折率（Ｐ）と、そのフイルムを溶融プレ
ス後10℃水中で急冷した非晶フイルムの厚さ方向
の屈折率（Ｑ）の比、すななち（Ｐ）／（Ｑ）で
ある。配向の程度が上記した好適範囲をはずれる
とフイルムの平坦性と滑性が両立しにくくなり、
そのフイルムを用いた磁気テープの走行性と電磁
変換特性が両立しにくくなるので望ましくない。
本発明フイルムの厚みは、３〜125μｍ、好ま
しくは４〜80μｍ、更に好ましくは４〜70μｍが
望ましい。
本発明フイルムにおいては、表面張力（γc）
が、50〜60dyne／cmの範囲が、滑性と接着性を
良くする点で望ましい範囲である。
本発明フイルムの少なくとも片面に磁性層を設
け、磁気記録媒体とするのが望ましい。この磁性
層とは、周知の磁性層で、γ−Fe2O3、Coをドー
プしたγ−Fe2O3、CrO2、あるいは強磁性合金等
の粉末状磁性材料を有機バインダー中に分散さ
せ、0.3〜5μｍ厚で塗布する方法によつて形成さ
れる磁性層、またはFe、Co、Niその他強磁性金
属あるいはそれらを含む磁性合金を、たとえば真
空蒸着、スパツタリング、イオンプレーテイン
グ、電気メツキ等の方法によつて10〜1000nｍ厚
で形成される磁性層のいずれであつてもよいが本
発明の効果を有利に発揮せしめて、磁気記録媒体
の精度向上を図る点では後者の磁性層を設けるの
が望ましい。
次に、本発明の配向フイルムおよび磁気記録媒
体の製造方法の大要を述べる。ただし、これに限
定されるものではない。
簡単のためポリエステルとしてポリエチレンテ
レフタレートを例に説明する。
(1) 配向フイルムの製造方法：
先ず、内部粒子の生成方法について述べる。
内部粒子は、テレフタル酸とエチレングリコ
ールとの直接エステル化を経て重縮合する過程
あるいは、テレフタル酸のジメチルテレフタ
レートとエチレングリコールとのエステル交換
反応を経て重縮合を行なう過程において、グリ
コールに可溶性のカルシウム化合物、マグネシ
ウム化合物、マンガン化合物、リチウム化合物
の少なくとも一種と、好ましくは、リンの酸お
おび／またはエステル化合物を適当な方法で添
加することによつて生成される。内部粒子を生
成させるための化合物の添加は、エステル化反
応またはエステル交換反応が実質的に終了した
時点から重縮合反応のあまり進んでいない初期
の段階までの任意の時期に、カルシウム化合
物、リチウム化合物の少なくとも一種をグリコ
ール溶液として反応系に添加するのがよい。
ここで使用しうるカルシウム、マグネシウ
ム、マンガン、リチウムの化合物としては、ハ
ロゲン化物、硝酸塩、硫酸塩などの無機酸塩、
酢酸塩、シユウ酸塩、安息香酸塩などの有機酸
塩、水素化物および酸化物などのグリコール可
溶性の化合物が最も好適に使用されるが、二種
以上併用してもかまわない。
また、リン化合物としてはリン酸、亜リン
酸、ホスホン酸、およびこれらのエステル類、
部分エステル類の一種以上が用いられる。
次に、不活性粒子および高級脂肪酸化合物の
添加方法について述べる。これらの添加時期
は、ポリエチレンテレフタレートの重合反応
前、重合反応中、重合反応終了後または溶融押
出成形する際の何れでもよいが、不活性粒子の
場合は特に不活性粒子を水および／またはエチ
レングリコールに分散させたスラリーを重合反
応前または反応中に添加するのが好ましい。
なお、高級脂肪酸化合物は、分散性を良くす
るためには、上に述べたうちでも、特に、重合
反応中に添加する方法が望ましい。
なお、本発明においては、内部粒子または不
活性粒子をそれぞれ別に含有するポリエチレン
テレフタレートを別々に製造し、高級脂肪酸化
合物と溶融工程で混練する方法、あるいは内部
粒子および／または不活性粒子と高級脂肪酸化
合物を多量に含有する高濃度マスタをポリエチ
レンテレフタレートで稀釈する方法も好ましく
採用される。
こうして特定の粒子源(A)および高級脂肪酸化
合物(B)を特定量含有するポリエチレンテレフタ
レートを、押出機中で溶融押出し、シート状に
キヤストし、周知の方法で延伸して配向せしめ
る。延伸方法は特に限定されるものではない
が、一軸配向形式を得るための一軸延伸方法と
しては、ロールによるタテ一方向延伸、クリツ
プ把持によるヨコ一方向延伸があり、一方、よ
り望ましい配向形式である二軸配向形式を得る
ための二軸延伸方法としては、たとえば、同時
二軸、タテ→ヨコ、タテ→ヨコ→タテ、ヨコ→
タテ、２段タテ→ヨコ、２段タテ→ヨコ→タ
テ、２段タテ→ヨコ→同時２軸などが挙げられ
る。
次いで必要に応じ、適当な弛緩を与えつつ、
熱処理をする。
次いで必要に応じて少なくとも片面に周知の
コロナ放電処理、プラズマ処理などを処して巻
取る。
(2) 磁気記録媒体の製造方法：
上記のようにして得た配向フイルムの片面に
既に述べた磁性層を形成せしめて、たとえば、
磁気テープを作る。
〔発明の効果・用途〕
本発明の配向ポリエステルフイルムは、内部粒
子および／または特定の平均粒径を有する不活性
粒子と、特定の高級脂肪酸金属塩および／または
特定の高級脂肪酸アミドとを、それぞれ、特定量
含有し、かつ、表面粗さと静摩擦係数が特定範囲
内にあることを特徴としているが故に、先ず、平
坦性と滑性が両立して優れているという効果があ
る。また、同時にアルミニウムなどの金属や印刷
インキなどの接着性が優れているという効果があ
る。また、滑性の耐久性や、耐摩耗性に優れると
いう効果がある。さらに、表面粗さが小さいの
で、透明性がよい（フイルムヘイズが小さい）と
いう効果もある。さらに良好な摩擦係数を有する
ので、製膜・スリツトの巻取・巻出工程や製品後
の加工工程で走行性が良く取扱い易いという効果
や、巻乱れ・スリキズ・突起転写がないという効
果がある。
上記の効果ゆえに、本発明ポリエステルフイル
ムは、磁気テープやフロツピーデイスクなどの磁
気記録媒体のベースフイルム、光学用ベースフイ
ルム、コンデンサー用ベースフイルム、グラフイ
ツク途ベースフイルム、包装用ベースフイルム用
に適しており、特に、最近小型軽量化が要請され
ているビデオテープレコーダー、磁気記録デイス
ク等の磁気記録媒体ベースや、蒸着タイプ箔巻き
コンデンサーベース用としての用途に好適であ
る。
さらに、特に磁気記録媒体のうちでも、高密度
化が要請されているメタルテープ用や、蒸着また
はスパツタリングによるテープ用やデイスク用に
適しており、さらに最も適しているのは、磁性層
が薄くて走行性が重視される蒸着テープ用途であ
る。
なお、磁気記録媒体とした場合は、本発明フイ
ルムが平坦性と滑性を両立しているので、従来公
知の磁気記録媒体に比べて、電磁交換特性と走行
性が共に優れているという効果を得ることができ
る。
そして、効果を有する本発明のフイルム使用の
磁気記録媒体は磁気テープ、磁気カード、磁気デ
イスクとして、電算機、オーデイオ、ビデオ、計
測用の各用途に用いることができ、特にビデオ用
として用いるのが好ましい。
〔特性の測定方法・評価基準〕
本発明における特性の測定方法および評価基準
は次の通りである。
(1) 不活性粒子の粒径φ（μｍ）：
不活性粒子をエチレングリコールまたは水ス
ラリーとして遠心沈降式粒度分布測定装置を用
いて測定し平均粒径で示した。
(2) 表面粗さRa（μｍ）：
触針式表面粗さ計による測定値を示す（カツ
トオフ0.25mm、測定値４mmでの値。但し、JIS
−Ｂ−0601による）。
(3) 静摩擦係数、μs：
ASTM−Ｄ−1894B−63に従い、スリツプ
テスターを用いて測定した。
(4) 臨界表面張力、γc（dyne／cm）：
ASTM−Ｄ−2578−67T法によつて、20℃、
65％雰囲気下にて測定した。
(5) 接着性
(5)−Ａ アルミニウム蒸着力
ベルジヤ型高真空蒸着装置（日本真空技術
(株)製EBH−６型）を用いて約１×10-5mmHg
の真空度でAlを約100nｍの厚さに蒸着し、
Al蒸着面にニチバン株式会社製市販セロフ
アン粘着テープを貼合せて90°剥離したあと
のAl残存付着面積で評価した。
評価判定の基準は次の通り。
[Technical Field of the Invention] The present invention relates to an oriented polyester film containing fine particles and having excellent surface flatness, smoothness, and adhesiveness. More specifically, so-called internal particles and/or inert particles that precipitate part or all of catalysts, color inhibitors, etc. used during polyester synthesis during the synthesis reaction process, and metal salts of specific higher fatty acids and/or Contains specific amounts of amide compounds of higher fatty acids, has finely dispersed particles, has surface flatness and smoothness that simultaneously satisfy specific ranges of surface roughness (Ra) and coefficient of static friction (μs), and , relates to an oriented polyester film with excellent adhesive properties. [Prior Art] In recent years, oriented polyester films have made remarkable progress in fields such as magnetic recording media such as magnetic tapes and magnetic disks, capacitors, photographs, microfilms, and packaging. In each of these uses of oriented polyester films, strict control of the surface is required. In other words, for magnetic recording media such as magnetic tapes and magnetic disks, it is used to prevent recording disturbances, and for capacitors, it is used to prevent insulation defects.
The surface of oriented polyester film must be flat for use in photographs and microfilms to prevent disturbances in image quality, and for packaging purposes so as not to impair transparency and aesthetics. In addition, common to all of these applications, workability and quality must be maintained both during unwinding, processing, winding, and slitting when producing a product for that application, as well as during use after production. The surface of the polyester film must be smooth on both sides.
In addition, lubricity is an important property when forming an oriented polyester film from the viewpoint of stable and economical production with less tearing. However, the long-awaited flatness and smoothness are inherently contradictory surface properties. In other words, it is extremely difficult to satisfy both properties at the same time; if priority is given to flatness, smoothness must be sacrificed to some extent; on the other hand, if priority is given to smoothness, flatness must be sacrificed to some extent. Conventionally, the following technologies have been proposed for the purpose of achieving both flatness and smoothness. A method in which part or all of the catalyst and color inhibitor used during polyester synthesis are precipitated during the reaction process and present on the film surface as fine particles (hereinafter referred to as internal particle generation method). A method of adding inert particles to a polyester synthesis reaction system such as titanium dioxide, talc, kaolinite, calcium carbonate, and silicon oxide (hereinafter referred to as
(referred to as external particle addition method). Use in combination with a method of adding neutral or partially neutralized montan wax salt or montan wax ester salt (Japanese Patent Application Laid-Open No. 1982-139551) or a method of adding an ester product (Japanese Patent Application Laid-Open No. 1982-195143) Publication No.). (Hereinafter referred to as organic lubricant addition method). However, in the oriented polyester film produced by such conventionally proposed technology, the internal particle generation method contains many coarse particles, perhaps due to the strong cohesive force between the particles. However, the external particle addition method inevitably causes secondary agglomeration of particles, roughness of the average particle size, and incorporation of coarse particles, so it is difficult to achieve both flatness and lubricity. However, even if the internal particle generation method and the external particle addition method were used together, the drawbacks of each could not be overcome.
The technique disclosed in the publication has the disadvantage that it lacks lubricity because the organic solvent bleeds out onto the film surface.In the technique disclosed in JP-A-57-195143, gelation occurs when an organic lubricant is added during polymerization. In addition, if it is added by rolling (adding it to the raw material after polymerization), the viscosity decreases rapidly during melt extrusion. However, if any of these films were used to make a magnetic tape, it would not be possible to achieve both the runnability of the magnetic tape and the electromagnetic conversion characteristics. [Object of the Invention] An object of the present invention is to provide an oriented polyester film that does not have the above-mentioned drawbacks, that is, has excellent surface flatness, smoothness, and adhesiveness. [Structure of the Invention] The present invention provides 100 parts by weight of polyester, A) 0.001 to 1 part by weight of inert particles with an internal particle or average particle diameter of 0.1 to 3 μm, and B higher fatty acid whose main component is 19 to 33 carbon atoms. At least one metal salt or partial metal salt compound of a compound consisting of a monocarboxylic acid, or a higher fatty acid amide whose main component has 18 to 33 carbon atoms.
0.005 to 2 parts by weight, and has a surface roughness Ra of 0.003 to 2 parts by weight.
It is characterized by an oriented polyester film having a diameter of 0.025 μm and a static friction coefficient μs of 0.10 to 0.70. The polyester in the present invention is a polyester containing an aromatic dicarboxylic acid as a main acid component and an alkylene glycol as a main glycol component. Specific examples of aromatic dicarboxylic acids include terephthalic acid, isophthalic acid, naphthalene dicarboxylic acid, diphenoxyethane dicarboxylic acid, diphenyl dicarboxylic acid, diphenyl ether dicarboxylic acid, diphenyl sulfone dicarboxylic acid, diphenyl ketone dicarboxylic acid, Examples include anthracene dicarboxylic acid and α,β-bis(2-chlorophenoxy)ethane-4,4'-dicarboxylic acid. Among these, terephthalic acid is particularly desirable. Specific examples of alkylene glycol include ethylene glycol, trimethylene glycol, tetramethylene glycol, pentamethylene glycol, hexamethylene glycol, hexylene glycol, and the like. Among these, ethylene glycol is particularly desirable. Of course, these polyesters may be homopolyesters or copolyesters (copolymerized polyesters), and copolymerizable components include, for example, diethylene glycol, propylene glycol, neopentyl glycol, polyalkylene glycol, p- Xylylene glycol, 1,4-cyclohexanedimethanol, 5-
Diol components such as sodium sulforesorcin, adipic acid, sebacic acid, phthalic acid, isophthalic acid, 2,6-naphthalene dicarboxylic acid, 5-
Examples include dicarboxylic acid components such as sodium isophthalic acid, polyfunctional dicarboxylic acid components such as trimellitic acid and pyromellitic acid, and oxycarboxylic acid components such as p-oxyethoxybenzoic acid. Note that, of course, known additives such as antistatic agents, heat stabilizers, and ultraviolet absorbers may be added to the polyester in amounts that do not impair the effects of the present invention. The internal particles in the present invention are particles produced by the combination of at least one compound among calcium compounds, magnesium compounds, and lithium compounds added during polyester synthesis and components constituting the polyester. The internal particles of the present invention may contain elemental phosphorus and trace amounts of other metal components, such as zinc, cobalt, antimony, germanium, titanium, etc., as long as they do not impede the effects of the present invention. . An example of a method for measuring the content of internal particles will be explained. Polyethylene terephthalate was thoroughly washed with methanol to remove surface deposits, washed with water, and dried.
Add 2.7 kg of O-chlorophenol to 300 g of sample, raise the temperature to 100° C. while stirring, and after raising the temperature, leave it as it is for another 1 hour to dissolve the polyethylene terephthalate portion. However, if the polyethylene terephthalate portion does not dissolve, such as when it is highly crystallized, the above-mentioned dissolution operation is performed after melting and quenching. Next, coarse insoluble matter such as dust contained in the polyethylene terephthalate is separated and removed using a G-1 glass filter, and the weight of this fine matter is subtracted from the sample weight. Rotor in Hitachi Separation Ultracentrifuge 40p type
Equipped with RP30, after injecting 30 c.c. of the solution after separating the glass filter into each cell, remove the rotor.
Rotate at 4,500 rpm, and after confirming that there are no rotation abnormalities, create a vacuum in the rotor, increase the rotation speed to 30,000 rpm, and perform centrifugal separation of particles at this rotation speed. Separation is completed after approximately 40 minutes, but if necessary this confirmation can be made by checking that the light transmittance of the liquid after separation at 37 mμ becomes a constant value that is higher than that before separation. After separation, the supernatant liquid is removed by decanting to obtain separated particles. Since the separated particles may be contaminated with polyester components due to insufficient separation, o-chlorophenol at room temperature is added to the collected particles to suspend them almost uniformly, and then the ultracentrifuge treatment is performed again. This operation, which will be described later, must be repeated until a melting peak corresponding to the polymer can no longer be detected by drying the particles and subjecting the particles to scanning differential calorimetry. Finally, the separated particles obtained in this way were
℃, vacuum dry for 16 hours and weigh. Note that the separated particles obtained by the above operation contain both internal particles and external particles. Therefore, it is necessary to separately determine the amount of internal particles and the amount of external particles, and first, quantitative analysis of the metal content of the separated particles is performed to determine the content of Ca and Li and the content of metals other than Ca and Li. Next, the separated particles are heated under reflux for 6 hours or more in 3 times the molar amount of ethylene glycol, and then the ethylene glycol is distilled off to achieve a temperature of 200° C. or higher for depolymerization, so that only the internal particles are dissolved. The separated particles obtained by centrifuging the remaining particles are dry-weighed to determine the amount of external particles, and the difference from the initial total amount of separated particles is determined to be the amount of internal particles. In addition, in order to confirm whether the depolymerization has been completed, a quantitative analysis of the metal content is performed on the separated particles after depolymerization, and by repeating these operations, the accuracy of particle amount measurement can be improved. In the present invention, the inert particles are chemically inert particles selected from oxides or inorganic salts of elements in Group 1 of the Periodic Table of the Elements, such as calcium carbonate obtained synthetically or as a natural product. , wet silica (silicon dioxide), dry silica (silicon dioxide), aluminum silicate (kaolinite), barium sulfate, calcium phosphate, talc, titanium dioxide, aluminum oxide,
aluminum hydroxide, calcium terephthalate,
Examples include calcium silicate. The average particle size of this inert particle needs to be 0.1 to 3 μm,
Preferably it is 0.1 to 2 μm. If it is less than 0.1μm,
The smoothness of the film becomes insufficient, and if the thickness exceeds 3 μm, the flatness of the film deteriorates. Incidentally, the removal of coarse particles and the particle size adjustment of the inert particles can be carried out by various methods, such as air blast classification, natural sedimentation separation using ethylene glycol slurry or water slurry, centrifugal sedimentation separation, sand mill crushing, and other pulverization and/or classification treatment methods. This can be done by In the present invention, it must contain at least one of the internal particles or the inert particles. If the content is either internal particles or inert particles, polyester 100
It needs to be 0.001 to 1 part by weight, preferably 0.01 to 0.5 part by weight. Also,
If it contains both internal particles and inert particles,
It is desirable that the total content of both is 0.001 to 2 parts by weight, preferably 0.002 to 1 part by weight, based on 100 parts by weight of polyester. If the content is less than the lower limit of the above range, the coefficient of friction between films or between films and metal will increase, resulting in poor lubricity; on the other hand, if the content exceeds the upper limit of the above range, The generation of coarse particles increases, the surface roughness increases, and the flatness deteriorates. If a magnetic tape is made using a film with a content outside the appropriate range as described above, running properties and electromagnetic conversion characteristics will not be compatible. The main component in the present invention has 19 to 33 carbon atoms.
Specific examples of metal salt compounds or partial metal salt compounds (hereinafter referred to as higher fatty acid metal salt compounds) of compounds consisting of higher aliphatic monocarboxylic acids include nonadecanoic acid, arachidic acid, carnaubic acid, lignoceric acid, cerotic acid, Examples include montanic acid, petroselic acid, oleic acid, erucic acid, linoleic acid, and acid mixtures containing these.Metals include alkali and/or alkaline earth metals such as lithium, sodium, potassium, barium, magnesium, and calcium. , strontium, and particularly preferred compounds include calcium montanate, sodium montanate, and sodium erucate. Here, the main component refers to a compound containing 80% by weight or more of the compound. In addition, if the fatty acid of the higher fatty acid metal salt compound has less than 19 carbon atoms, it will bleed out to the film surface severely and the adhesion will be extremely poor, and if the number of carbon atoms exceeds 33, lubricity will not be obtained. . The content of the higher fatty acid metal salt compound needs to be 0.005 to 2 parts by weight, preferably 0.01 to 1 part by weight, and more preferably 0.05 to 0.5 parts by weight, based on 100 parts by weight of the polyester. The above content is
If the amount is less than 0.005 parts by weight, the flatness and slipperiness of the film will hardly be obtained, and if it exceeds 2 parts by weight, bleed-out to the film surface will be severe and the adhesiveness will be extremely poor. In the present invention, higher fatty acid amide is a higher fatty acid amide whose main component has 18 to 33 carbon atoms. Specific examples include stearic acid amide,
Examples include oleic acid amide, erucic acid amide, and behenic acid amide, with erucic acid amide being particularly desirable. Here, the main component refers to a product containing 80% by weight or more of higher fatty acids having 18 to 33 carbon atoms. In addition, as other substituted fatty acid amides of the above specific examples, general formula [In the formula, R 1 is an alkyl, alkenyl or cycloalkenyl group, R 2 is H or an alkyl group,
R 3 may contain an alkyl group, and R 1 and R 3 may contain an oxy group or an alkoxy group. However, a compound having a total number of carbon atoms of 18 to 33 may also be used. A specific example is acetic acid-N-
Stearylamide, N-methyl propionate
Examples include N-stearylamide. If the number of carbon atoms in the fatty acid is less than 18, bleed-out to the film surface will be severe and the adhesion will be extremely poor, and if the number of carbon atoms in the fatty acid exceeds 33, lubricity will not be obtained. The content of the higher fatty acid amide is
It needs to be 0.005 to 2 parts by weight, preferably 0.01 to 1 part by weight, and more preferably 0.05 to 0.5 parts by weight, per 100 parts by weight. If the content is less than 0.005 parts by weight, the flatness and slipperiness of the film will be poor, and if it exceeds 2 parts by weight, bleed-out to the film surface will be severe and the adhesiveness will be poor. In the present invention, unless at least one of the above-mentioned higher fatty acid metal salt compound and the above-mentioned higher fatty acid amide is contained in a specified amount, the effects of the present invention will not be exhibited, and the running properties and electromagnetic conversion when made into a magnetic tape will be improved. characteristics become incompatible. In addition, when containing both a higher fatty acid metal salt compound and a higher fatty acid amide, the total content of both is higher than that of the polyester.
It is desirable that the amount is 0.005 to 2.5 parts by weight, preferably 0.002 to 1 part by weight, per 100 parts by weight. As described above, the oriented polyester film of the present invention comprises (A) internal particles (hereinafter simply referred to as ")" or inert particles (hereinafter simply referred to as ")" and (B) a higher fatty acid metal salt compound (hereinafter referred to as "simply"). , simply referred to as ) or higher fatty acid amide (hereinafter simply referred to as ). It is necessary that both of the higher fatty acid compound (hereinafter simply referred to as higher fatty acid compound (B)) be contained. Particle source (A)
If it contains only the higher fatty acid compound (B) or only the higher fatty acid compound (B), the effects of the present invention will not be exhibited. In other words,
This is an oriented polyester film containing a specific amount of a particle source (A) and a higher fatty acid compound (B), and having a specific surface roughness and coefficient of static friction. Preferred particle source
The combination of (A) and higher fatty acid compound (B) is ++
, +++, +, +, + (here, "+" means used in combination). The reason why both the particle source (A) and the higher fatty acid compound (B) must be contained is that the particle source (A) is ultrafinely dispersed in the polyester. This is because there is a reciprocal effect. The surface roughness (Ra) in the present invention is measured by the method described below, and in the present invention, the surface roughness (Ra) must be in the range of 0.003 to 0.025 μm, preferably 0.005 to 0.023 μm, More preferably 0.005 to 0.018 μm, most preferably 0.005
~0.014 μm. The surface roughness (Ra) is 0.003μm
If it is less than that, it will be too flat and scratches will easily occur. On the other hand, when Ra exceeds 0.025μ, flatness is poor.
And when Ra goes out of the preferred range like this,
A magnetic tape using this film has incompatible electromagnetic conversion characteristics and runnability. The coefficient of static friction (μs) in the present invention is measured by the method described below, and its range needs to be 0.10 to 0.70, preferably
It is 0.20 to 0.60, more preferably 0.30 to 0.55. If the static friction coefficient (μs) is less than 0.10, loose winding occurs during operation. On the other hand, if it exceeds 0.70, lubricity is insufficient and high-speed running performance during processing deteriorates. In the present invention, the film must be oriented. If it is not an oriented film, it will be difficult to keep both the surface roughness and the coefficient of static friction within the above ranges, and the thickness unevenness, rigidity, and dimensional stability will be fatally poor. Forms of orientation include uniaxial orientation, biaxial orientation, etc.
Although any known orientation format can be selected, a biaxial orientation format is preferred. Regarding the degree of orientation, in the case of uniaxial orientation, the in-plane birefringence Δn is preferably 0.02 to 0.25, preferably 0.06 to 0.2, and in the case of biaxial orientation, the in-plane birefringence Δn is 0 to 0.
0.15, preferably 0 to 0.10, the sum of in-plane refractive index is 3.2
~3.42, and a thickness direction refractive index ratio of 0.935 to 0.980 is desirable. The in-plane birefringence Δn here is measured using an Atsube refractometer using sodium D line at 25℃ and 65%RH.
It is the absolute value of the difference in the refractive index in the vertical direction and the horizontal direction among the refractive indexes measured in the vertical direction, horizontal direction, and thickness direction of the film, and the sum of the in-plane refractive indexes is the The refractive index is the sum of the refractive index and the refractive index in the transverse direction, and the refractive index in the thickness direction is the refractive index (P) in the thickness direction of the film, and the sum of the refractive index (P) in the thickness direction of the film and the amorphous film that is melt-pressed and then rapidly cooled in water at 10°C. The ratio of the refractive index (Q) in the thickness direction of , that is, (P)/(Q). If the degree of orientation is outside the above-mentioned preferred range, it becomes difficult to achieve both flatness and slipperiness of the film.
This is not desirable because it becomes difficult to achieve both running performance and electromagnetic conversion characteristics of a magnetic tape using such a film. The thickness of the film of the present invention is preferably 3 to 125 μm, preferably 4 to 80 μm, and more preferably 4 to 70 μm. In the film of the present invention, surface tension (γc)
However, a range of 50 to 60 dyne/cm is desirable in terms of improving slipperiness and adhesion. It is desirable to provide a magnetic layer on at least one side of the film of the present invention to form a magnetic recording medium. This magnetic layer is a well-known magnetic layer in which a powdered magnetic material such as γ-Fe 2 O 3 , Co-doped γ-Fe 2 O 3 , CrO 2 , or a ferromagnetic alloy is dispersed in an organic binder. , a magnetic layer formed by a method of coating with a thickness of 0.3 to 5 μm, or a magnetic layer formed by coating a ferromagnetic metal such as Fe, Co, Ni, or other ferromagnetic metal or a magnetic alloy containing them, for example, by vacuum evaporation, sputtering, ion plating, electroplating, etc. Although the magnetic layer may be formed to have a thickness of 10 to 1000 nm depending on the method, the latter method is preferred in order to advantageously exhibit the effects of the present invention and improve the precision of the magnetic recording medium. is desirable. Next, the outline of the method for manufacturing the oriented film and magnetic recording medium of the present invention will be described. However, it is not limited to this. For simplicity, explanation will be given using polyethylene terephthalate as an example of polyester. (1) Method for producing oriented film: First, the method for producing internal particles will be described.
Internal particles are formed by forming glycol-soluble calcium compounds during the process of polycondensation through direct esterification of terephthalic acid and ethylene glycol, or during the process of polycondensation through transesterification of terephthalic acid with dimethyl terephthalate and ethylene glycol. , a magnesium compound, a manganese compound, a lithium compound, and preferably a phosphorus acid and/or ester compound in an appropriate manner. The addition of compounds for producing internal particles can be carried out at any time from the time when the esterification reaction or transesterification reaction is substantially completed to the early stage when the polycondensation reaction is not very advanced. It is preferable to add at least one of these to the reaction system as a glycol solution. Compounds of calcium, magnesium, manganese, and lithium that can be used here include inorganic acid salts such as halides, nitrates, and sulfates;
Organic acid salts such as acetates, oxalates, and benzoates, and glycol-soluble compounds such as hydrides and oxides are most preferably used, but two or more thereof may be used in combination. In addition, phosphorus compounds include phosphoric acid, phosphorous acid, phosphonic acid, and their esters,
One or more partial esters are used. Next, a method for adding inert particles and higher fatty acid compounds will be described. These may be added before the polymerization reaction of polyethylene terephthalate, during the polymerization reaction, after the completion of the polymerization reaction, or during melt extrusion molding. It is preferable to add a slurry in which the polymer is dispersed before or during the polymerization reaction. In addition, in order to improve the dispersibility of the higher fatty acid compound, among the methods described above, it is particularly desirable to add the higher fatty acid compound during the polymerization reaction. In the present invention, polyethylene terephthalate containing internal particles or inert particles is separately produced and kneaded with a higher fatty acid compound in a melting process, or internal particles and/or inert particles and a higher fatty acid compound are mixed together. A method of diluting a high concentration master containing a large amount of with polyethylene terephthalate is also preferably employed. In this way, polyethylene terephthalate containing a specific particle source (A) and a specific amount of a higher fatty acid compound (B) is melt-extruded in an extruder, cast into a sheet, and stretched and oriented using a known method. Although the stretching method is not particularly limited, examples of the uniaxial stretching method for obtaining a uniaxially oriented format include vertical unidirectional stretching using rolls and horizontal unidirectional stretching using clip gripping. Biaxial stretching methods for obtaining biaxial orientation include, for example, simultaneous biaxial stretching, vertical → horizontal, vertical → horizontal → vertical, horizontal →
Examples include vertical, 2-stage vertical → horizontal, 2-stage vertical → horizontal → vertical, 2-stage vertical → horizontal → 2 axes at the same time. Next, while giving appropriate relaxation as necessary,
Heat treatment. Then, if necessary, at least one side is subjected to well-known corona discharge treatment, plasma treatment, etc., and then wound up. (2) Method of manufacturing a magnetic recording medium: The above-described magnetic layer is formed on one side of the oriented film obtained as described above, and then, for example,
Make magnetic tape. [Effects/Applications of the Invention] The oriented polyester film of the present invention contains internal particles and/or inert particles having a specific average particle size, and a specific higher fatty acid metal salt and/or a specific higher fatty acid amide, respectively. Since it is characterized by containing a specific amount of , and having a surface roughness and a coefficient of static friction within a specific range, the first advantage is that it has both excellent flatness and smoothness. At the same time, it has the effect of having excellent adhesion to metals such as aluminum and printing ink. Moreover, it has the effect of being excellent in the durability of lubricity and abrasion resistance. Furthermore, since the surface roughness is small, transparency is good (film haze is small). Furthermore, it has a good coefficient of friction, so it has good running properties and is easy to handle in the film forming/slitting winding/unwinding process and the post-product processing process, and there is no winding irregularity, scratches, or projection transfer. . Because of the above effects, the polyester film of the present invention is suitable for use as a base film for magnetic recording media such as magnetic tapes and floppy disks, optical base films, condenser base films, graphic base films, and packaging base films. In particular, it is suitable for use as a base for magnetic recording media such as video tape recorders and magnetic recording disks, which have recently been required to be smaller and lighter, and as a base for vapor-deposited foil-wound capacitors. Furthermore, it is especially suitable for magnetic recording media, such as metal tapes that require higher density, tapes and disks made by vapor deposition or sputtering, and the most suitable ones are those with thin magnetic layers. This is a vapor-deposited tape application where runnability is important. In addition, when used as a magnetic recording medium, since the film of the present invention has both flatness and slipperiness, it has the effect of being superior in both electromagnetic exchange characteristics and runnability compared to conventionally known magnetic recording media. Obtainable. The effective magnetic recording medium using film of the present invention can be used as a magnetic tape, magnetic card, or magnetic disk for computers, audio, video, and measurement applications, and is particularly suitable for use in video applications. preferable. [Method for Measuring Properties and Criteria for Evaluation] The methods for measuring properties and evaluation criteria in the present invention are as follows. (1) Particle size φ (μm) of inert particles: The inert particles were measured as an ethylene glycol or water slurry using a centrifugal sedimentation type particle size distribution analyzer, and the average particle size was expressed. (2) Surface roughness Ra (μm): Indicates the value measured by a stylus surface roughness meter (value at cutoff 0.25 mm, measured value 4 mm. However, JIS
-B-0601). (3) Static friction coefficient, μs: Measured using a slip tester in accordance with ASTM-D-1894B-63. (4) Critical surface tension, γc (dyne/cm): 20℃, according to ASTM-D-2578-67T method.
Measured under 65% atmosphere. (5) Adhesion (5)-A Aluminum evaporation strength Bergier type high vacuum evaporation equipment (Japan Vacuum Technology Co., Ltd.)
Approximately 1 x 10 -5 mmHg using EBH-6 model manufactured by Co., Ltd.
Al was deposited to a thickness of about 100 nm at a vacuum level of
A commercially available cellophane adhesive tape manufactured by Nichiban Co., Ltd. was attached to the Al-deposited surface and evaluated by the remaining Al adhesion area after peeling off at 90°. The criteria for evaluation are as follows.
磁気テープ用として、μkは0.35以下が好まし
く、さらには0.30以下がより好ましく、更に好
ましいのは0.26以下である。
(7) 滑性の耐久性：
テープ状にしたフイルムの表面を金属
（SUS）固定ガイド（５mmφ）に500回繰返し
接触走行させた後、上記(3)のμsを測定した。走
行開始のμsよりも0.1以内の差であれば耐久性
は良く（○）、差が0.1を越えれば耐久性は悪い
（×）と評価する。
(8) 耐摩耗性：
テープ状にしたフイルムの表面を金属
（SUS）固定ガイド（５mmφ）に500回繰返し
接触走行させた後、フイルム上に付着したスク
ラツチ量を観察し、その数の多少で次のごとく
評価した。
For magnetic tapes, μk is preferably 0.35 or less, more preferably 0.30 or less, and still more preferably 0.26 or less. (7) Durability of slipperiness: The surface of the tape-shaped film was repeatedly run in contact with a metal (SUS) fixed guide (5 mmφ) 500 times, and then the μs described in (3) above was measured. If the difference is within 0.1 of μs at the start of running, the durability is evaluated as good (○), and if the difference exceeds 0.1, the durability is evaluated as poor (x). (8) Abrasion resistance: After repeatedly running the surface of a tape-shaped film in contact with a metal (SUS) fixed guide (5 mmφ) 500 times, the amount of scratches adhered to the film was observed, and the number of scratches was measured. The evaluation was as follows.
以下、実施例に基づいて本発明の一実施態様を
説明する。
実施例１〜９、比較例１〜18
テレフタル酸ジメチル10.0重量部、エチレング
リコール62重量部に酢酸カルシウム0.06重量部を
触媒として常法によりエステル交換反応を行な
い、その生成物に三酸化アンチモン0.04重量部、
酢酸リチウム0.07重量部および酢酸カルシウム
0.04重量部を添加し、続いて亜リン酸0.02重量
部、リン酸トリメチル0.10重量部とを添加した
後、重縮合を行ない、固有粘度0.618、内部粒子
量0.35重量部（対ポリエステル100重量部）を含
むポリマーを得た。内部粒子中にはカルシウム元
素1.2重量％、リチウム元素1.9重量％、リン元素
4.9重量％含有されていた（ポリエステル：Ａ）。
テレフタル酸100重量部とエチレングリコール
43重量部を混練しスラリーを調整した。反応器に
245℃で貯留したテレフタル酸50重量部とエチレ
ングリコール21.5重量部の反応物中に該スラリー
を一定速度で連続的に添加し常圧下245℃でエス
テル化反応を行ない生成する水を精留塔から連続
的に系外に留出させた。該スラリーの供給時間は
３時間30分で終了しエステル化反応は４時間で終
了した。得られた反応物からテレフタル酸100重
量部に相当するエステル化反応物を重合装置に移
しリン酸0.045重量部、三酸化アンチモン0.023重
量部、および平均粒径1.8μを有する炭酸カルシウ
ム2.3重量部をエチレングリコールスラリーとし
て添加し、常法に従つて重縮合反応した。得られ
たポリマーは固有粘度0.615を有し、本発明で規
定する内部粒子は存在せず炭酸カルシウム２重量
部を含有していた（ポリエステル：Ｂ）。
ポリエステル：Ｂと同様の方法で不活性粒子を
添加しない固有粘度0.62のポリマーを得た（ポリ
エステル：Ｃ）。
ポリエステルＢと同様の方法で炭酸カルシウム
の代りにポリエチレンテレフタレート100重量部
に対し平均粒径0.7μの乾式シリカ（SiO2）（日本
アエロジル(株)製“アエロジル”TT−600）を1.0
重量部含有するポリエステルを得た（ポリエステ
ル：Ｄ）。
一方、平均粒径1.8μを有するカオリナイトを３
重量部含有するポリエステル：Ｅ）。
かくして得られたポリエステルＡ、Ｂ、Ｃ、
Ｄ、Ｅを適当量ずつ選んで組合せブレンドし、減
圧乾燥（170℃、２時間）後、さらに高級脂肪酸
化合物として、モンタン酸ナトリウム、モンタン
酸カルシウム、ベヘン酸ナトリウムをそれぞれ添
加し、およびエルカ酸アミド、メリシン酸アミ
ド、酢酸−Ｎ−ステアリルアミドをそれぞれ添加
し、第１表に示した組成のものを実施例１から実
施例９まで９種類作つた。なお、比較実施例とし
て、第１表に示した組成のものを、比較例１から
比較例18まで18種類作つた。これらの比較例の組
成物を調製する際には、上記したポリエステル
Ａ、Ｂ、Ｃ、Ｄ、Ｅの他に、ポリエステルＢ、
Ｄ、Ｅと同様手法で平均粒径4.0μｍの炭酸カルシ
ウムを３重量部含有するポリエステルや、平均粒
径2.0μｍのカオリナイトを３重量部含有するポリ
エステルを用い、また、高級脂肪酸化合物とし
て、実施例に用いたものの他に、パルチミン酸ナ
トリウム、パルチミン酸アミドを用いた。
該組成物を、285℃で溶融押出し、60℃の冷却
ドラム上にキヤストして無延伸シート状とした
後、常法の逐次二軸延伸法によつて、まず、周速
差をもたせた一対のロール間で90℃でタテ（長
手）方向に3.3倍延伸した。屈折率はタテ方向、
ヨコ方向それぞれ1.64、1.54であり、面内複屈折
Δnは0.10であつた。次いで、テンターに送り込
み、両端をクリツプで把持しつつ、95℃でヨコ
（幅）方向に3.5倍延伸し、同じくテンター内で幅
方向に５％弛緩させつつ、218℃で５秒間熱処理
した。テンターから出てきた該２軸配向フイルム
を、次いで50W・min／m2のエネルギーで両面を
コロナ放電処理し、次いで、巻取り、厚みが15μ
ｍのポリエチレンテレフタレート２軸配向フイル
ムを得た。これらフイルムの巻取性は非常によか
つた。このフイルムのタテ方向、ヨコ方向、厚さ
方向の屈折率はそれぞれ1.63、1.66、1.50（Ｐ）で
あつた。また屈折率（Ｑ）は1.57であつた。故
に、面内複屈折Δnは0.03、面内屈折率の和は
3.29、厚さ方向屈折率比は0.95であつた。
これらフイルムの特性を測定・評価した結果を
第１表に示した。フイルム特性は両面とも同じ数
値・結果となつた。
第１表の結果から、実施例１〜実施例９の各フ
イルムは、平坦性（Ra）、滑性（μs）、透明性
（ヘイズ）、接着性（Al蒸着力、印刷インキ接着
力）、走行性（μk）、滑性の耐久性、耐摩耗性の
いずれにも優れていることがわかる。一方、比較
例１は、内部粒子および不活性粒子および高級脂
肪酸金属塩化合物を含有せず、高級脂肪酸アミド
のみしか含有していないので、滑性が悪く、走行
性が悪い。また、比較例２〜比較例18の各フイル
ムは、本発明の特許請求の範囲のいずれかの要件
に合致しないため、フイルム特性の項目のいずれ
かが悪くなつている。
次いで、各実施例および各比較例のフイルムに
ついて、その片面に、次の方法で磁性塗料を塗布
し、そして磁気テープとした。すなわち、
強磁性合金粉末（Fe−Co） 300重量部
亜鉛粉末（平均粒径2μｍ） 25 〃
セルロースアセテートブチレート 30 〃
エポキシ樹脂 25 〃
シリコーン油 ４ 〃
レシチン ５ 〃
トルエン（溶剤） 200 〃
メチルエチルケトン（溶剤） 200 〃
酢酸エチル（溶剤） 100 〃
からなる組成物をボールミルに入れて充分に混練
したのち、ポリイソシアネート化合物（デスモデ
ユールＬ−75）を180重量部加え、30分撹拌混合
した後、上記のポリエチレンテレフタレートフイ
ルムの片面に、磁場を印加しつつ乾燥厚み4μｍ
になるように塗布し、乾燥した。しかる後、硬化
処理・鏡面処理をした後、1/2インチ幅にスリツ
トし、ビデオテープとした。
こうして得たフイルムの磁気テープ特性を評価
した結果を第１表に併せて示す。
第１表の磁気テープ特性の測定評価結果から、
実施例１〜９の各フイルムを用いたテープは、磁
性膜付着力、磁気テープ走行性、電磁変換特性の
いずれもが良好であることがわかる。
一方、比較例１は磁性膜付着強さと電磁変換特
性は良好だが磁気テープ走行性が悪い。また、比
較例２〜比較例18の各フイルムは、本発明の特許
請求範囲のいずれかの要件に合致しないため、磁
気テープ特性の項目のいずれかが悪くなつてい
る。
以上、単層フイルムを主体に説明したが、その
単層フイルムを、他の組成からなる配向ベースフ
イルムの両面または片面に、被覆層として被覆し
配向複合フイルムとしてもよい。
なお、被覆層は厚さが0.1〜5μの範囲にあるの
が好ましい。また、被覆層が片面被覆の場合、ベ
ースの露出面（被覆層が設けられない側の面）の
粗さRaは0.003〜0.01μであるのが好ましく、磁性
層はその露出面側に設けるのが好ましい。
Hereinafter, one embodiment of the present invention will be described based on Examples. Examples 1 to 9, Comparative Examples 1 to 18 A transesterification reaction was carried out in a conventional manner using 10.0 parts by weight of dimethyl terephthalate and 62 parts by weight of ethylene glycol using 0.06 parts by weight of calcium acetate as a catalyst, and the resulting product contained 0.04 parts by weight of antimony trioxide. Department,
0.07 parts by weight of lithium acetate and calcium acetate
After adding 0.04 parts by weight, and subsequently adding 0.02 parts by weight of phosphorous acid and 0.10 parts by weight of trimethyl phosphate, polycondensation was carried out to give an intrinsic viscosity of 0.618 and an internal particle amount of 0.35 parts by weight (based on 100 parts by weight of polyester). A polymer containing the following was obtained. Internal particles contain 1.2% by weight of calcium element, 1.9% by weight of lithium element, and phosphorus element.
It contained 4.9% by weight (polyester: A). 100 parts by weight of terephthalic acid and ethylene glycol
A slurry was prepared by kneading 43 parts by weight. into the reactor
The slurry is continuously added at a constant rate to a reaction mixture of 50 parts by weight of terephthalic acid and 21.5 parts by weight of ethylene glycol stored at 245°C, and the esterification reaction is carried out at 245°C under normal pressure, and the resulting water is collected from a rectifying column. It was continuously distilled out of the system. The supply time of the slurry was completed in 3 hours and 30 minutes, and the esterification reaction was completed in 4 hours. From the obtained reaction product, the esterification reaction product equivalent to 100 parts by weight of terephthalic acid was transferred to a polymerization apparatus, and 0.045 parts by weight of phosphoric acid, 0.023 parts by weight of antimony trioxide, and 2.3 parts by weight of calcium carbonate having an average particle size of 1.8μ were added. It was added as an ethylene glycol slurry and subjected to polycondensation reaction according to a conventional method. The obtained polymer had an intrinsic viscosity of 0.615, contained no internal particles defined by the present invention, and contained 2 parts by weight of calcium carbonate (polyester: B). Polyester: A polymer having an intrinsic viscosity of 0.62 without the addition of inert particles was obtained in the same manner as in B (polyester: C). In the same manner as polyester B, 1.0 % of dry silica (SiO2) ("Aerosil" TT-600, manufactured by Nippon Aerosil Co., Ltd., manufactured by Nippon Aerosil Co., Ltd.) with an average particle size of 0.7μ is added to 100 parts by weight of polyethylene terephthalate instead of calcium carbonate.
A polyester containing part by weight was obtained (polyester: D). On the other hand, 3 kaolinite with an average particle size of 1.8μ
Part by weight of polyester: E). The thus obtained polyesters A, B, C,
Appropriate amounts of D and E were selected and blended, and after drying under reduced pressure (170°C, 2 hours), sodium montanate, calcium montanate, and sodium behenate were added as higher fatty acid compounds, and erucic acid amide was added. , melisic acid amide, and acetic acid-N-stearylamide were added, respectively, to prepare nine types of compositions from Example 1 to Example 9 having the compositions shown in Table 1. As comparative examples, 18 types of compositions shown in Table 1 were prepared from Comparative Example 1 to Comparative Example 18. When preparing the compositions of these comparative examples, in addition to the above-mentioned polyesters A, B, C, D, and E, polyester B,
Using the same method as D and E, using polyester containing 3 parts by weight of calcium carbonate with an average particle size of 4.0 μm and polyester containing 3 parts by weight of kaolinite with an average particle size of 2.0 μm, and as a higher fatty acid compound. In addition to those used in the example, sodium palmitate and palmitic acid amide were used. The composition was melt-extruded at 285°C, cast on a cooling drum at 60°C to form a non-stretched sheet, and then, by a conventional sequential biaxial stretching method, a pair of sheets with a circumferential speed difference was formed. The film was stretched 3.3 times in the longitudinal direction at 90°C between rolls. The refractive index is vertical,
The values were 1.64 and 1.54 in the horizontal direction, respectively, and the in-plane birefringence Δn was 0.10. Next, it was fed into a tenter, held at both ends with clips, and stretched 3.5 times in the transverse (width) direction at 95°C, and heat treated at 218°C for 5 seconds while being relaxed in the width direction by 5% in the same tenter. The biaxially oriented film that came out of the tenter was then subjected to corona discharge treatment on both sides with an energy of 50 W min/m 2 , and then wound up to a thickness of 15 μm.
A biaxially oriented polyethylene terephthalate film of m was obtained. The windability of these films was very good. The refractive index of this film in the vertical direction, horizontal direction, and thickness direction was 1.63, 1.66, and 1.50 (P), respectively. Moreover, the refractive index (Q) was 1.57. Therefore, the in-plane birefringence Δn is 0.03, and the sum of the in-plane refractive indices is
3.29, and the refractive index ratio in the thickness direction was 0.95. Table 1 shows the results of measuring and evaluating the properties of these films. The film properties showed the same values and results on both sides. From the results in Table 1, each film of Examples 1 to 9 has flatness (Ra), slipperiness (μs), transparency (haze), adhesiveness (Al vapor deposition strength, printing ink adhesive strength), It can be seen that it has excellent running properties (μk), durability of slipperiness, and abrasion resistance. On the other hand, Comparative Example 1 does not contain internal particles, inert particles, or higher fatty acid metal salt compounds, but only contains higher fatty acid amide, and thus has poor lubricity and poor runnability. Further, each of the films of Comparative Examples 2 to 18 did not meet any of the requirements of the claims of the present invention, and therefore had poor film properties. Next, a magnetic paint was applied to one side of each of the films of each Example and each Comparative Example by the following method to prepare a magnetic tape. That is, ferromagnetic alloy powder (Fe-Co) 300 parts by weight zinc powder (average particle size 2 μm) 25 〃 Cellulose acetate butyrate 30 〃 Epoxy resin 25 〃 Silicone oil 4 〃 Lecithin 5 〃 Toluene (solvent) 200 〃 Methyl ethyl ketone (solvent) ) 200 〃 Ethyl acetate (solvent) 100 〃 A composition consisting of 100 〃 was put into a ball mill and thoroughly kneaded, 180 parts by weight of a polyisocyanate compound (Desmodeur L-75) was added, and after stirring and mixing for 30 minutes, the above polyethylene A magnetic field is applied to one side of the terephthalate film to dry it to a thickness of 4 μm.
Apply it and let it dry. After that, it was hardened and mirror-finished, and then slit into 1/2-inch pieces to make a videotape. Table 1 also shows the results of evaluating the magnetic tape properties of the film thus obtained. From the measurement evaluation results of magnetic tape characteristics in Table 1,
It can be seen that the tapes using each of the films of Examples 1 to 9 had good magnetic film adhesion, magnetic tape running properties, and electromagnetic conversion characteristics. On the other hand, Comparative Example 1 had good magnetic film adhesion strength and electromagnetic conversion characteristics, but poor magnetic tape running properties. Furthermore, each of the films of Comparative Examples 2 to 18 did not meet any of the requirements of the claims of the present invention, and therefore had poor magnetic tape characteristics. Although the above description has mainly focused on a single-layer film, the single-layer film may be coated as a coating layer on both or one side of an oriented base film made of another composition to form an oriented composite film. In addition, it is preferable that the thickness of the coating layer is in the range of 0.1 to 5 μm. In addition, when the coating layer is one-sided coating, it is preferable that the roughness Ra of the exposed surface of the base (the side on which the coating layer is not provided) is 0.003 to 0.01μ, and the magnetic layer is not provided on the exposed surface side. is preferred.
【表】【table】
【表】【table】
【表】
(注) 上記組成表に於いて〓−〓の印は、〓無〓を意
味する。
[Table] (Note) In the above composition table, the marks 〓-〓 mean 〓No〓.
Claims (1)
性粒子0.001〜１重量部と、 Ｂ 主成分が炭素原子数19〜33の高級脂肪酸モノ
カルボン酸からなる化合物の金属塩または部分
金属塩化合物の少なくとも一種、もしくは、主
成分が炭素原子数18〜33の高級脂肪酸アミドを
0.005〜２重量部とを 含有してなり、かつ表面粗さRaが0.003〜
0.025μｍ、静摩擦係数μsが0.10〜0.70である配向
ポリエステルフイルム。[Scope of Claims] 1. 100 parts by weight of polyester, A. 0.001 to 1 part by weight of inert particles having an internal particle size or average particle size of 0.1 to 3 μm, and B. Higher fatty acid monocarboxylic acid whose main component is 19 to 33 carbon atoms. At least one metal salt or partial metal salt compound of a compound consisting of an acid, or a higher fatty acid amide having 18 to 33 carbon atoms as the main component.
0.005 to 2 parts by weight, and has a surface roughness Ra of 0.003 to 2 parts by weight.
An oriented polyester film having a diameter of 0.025 μm and a static friction coefficient μs of 0.10 to 0.70.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58096562A JPS59221354A (en) | 1983-05-31 | 1983-05-31 | Oriented polyester film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58096562A JPS59221354A (en) | 1983-05-31 | 1983-05-31 | Oriented polyester film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59221354A JPS59221354A (en) | 1984-12-12 |
| JPH0336061B2 true JPH0336061B2 (en) | 1991-05-30 |
Family
ID=14168476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58096562A Granted JPS59221354A (en) | 1983-05-31 | 1983-05-31 | Oriented polyester film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59221354A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61167530A (en) * | 1985-01-21 | 1986-07-29 | Diafoil Co Ltd | Polyester film for magnetic recording material |
| JPS62245520A (en) * | 1986-04-16 | 1987-10-26 | Diafoil Co Ltd | Magnetic recording medium |
| JP2595511B2 (en) * | 1986-09-03 | 1997-04-02 | 東レ株式会社 | Base film for magnetic recording media |
| JPS6485249A (en) * | 1987-09-25 | 1989-03-30 | Mitsuboshi Belting Ltd | Polyester resin composition |
| JP2005314612A (en) * | 2004-04-30 | 2005-11-10 | Ge Plastics Japan Ltd | Light-reflecting body made of polyester resin |
| JP6005005B2 (en) * | 2013-07-23 | 2016-10-12 | 富士フイルム株式会社 | Biaxially stretched polyester film and method for producing the same |
| JP7397578B2 (en) * | 2019-03-20 | 2023-12-13 | 長瀬産業株式会社 | polyester resin composition |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59172542A (en) * | 1983-03-23 | 1984-09-29 | Diafoil Co Ltd | Polyester composition and production thereof |
-
1983
- 1983-05-31 JP JP58096562A patent/JPS59221354A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59172542A (en) * | 1983-03-23 | 1984-09-29 | Diafoil Co Ltd | Polyester composition and production thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59221354A (en) | 1984-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4590119A (en) | Polyester film and magnetic recording medium therefrom | |
| JP4023090B2 (en) | Biaxially oriented polyester film for magnetic recording tape and magnetic recording tape | |
| JP2856283B2 (en) | Biaxially oriented polyester film | |
| JPH0336061B2 (en) | ||
| US20050147795A1 (en) | Biaxially oriented polyster film and flexible disk | |
| JPH0458818B2 (en) | ||
| JP3464333B2 (en) | Polyester film for magnetic recording media | |
| JPH0437092B2 (en) | ||
| JPS6021250A (en) | Composite polyester film | |
| JP3361105B2 (en) | Biaxially oriented polyester film for magnetic recording media | |
| JP2609074B2 (en) | Method for producing biaxially oriented polyester film for magnetic recording medium | |
| JPH0518327B2 (en) | ||
| JP3254258B2 (en) | Polyethylene-2,6-naphthalate film | |
| JP2675216B2 (en) | Polyethylene-2,6-naphthalate film | |
| JPH0458821B2 (en) | ||
| JP3075932B2 (en) | Polyester film | |
| JP4080124B2 (en) | Polyethylene-2,6-naphthalate film | |
| JPH0684445B2 (en) | Biaxially oriented polyester film for magnetic recording media | |
| JPS63215732A (en) | Polyester film | |
| JPH06172555A (en) | Biaxially oriented polyester film for magnetic recording medium | |
| JP3251660B2 (en) | Biaxially oriented polyester film for magnetic recording media | |
| JPH07100742B2 (en) | Biaxially stretched polyester film | |
| JPH07157639A (en) | Polyester film | |
| JPH0458819B2 (en) | ||
| JP2003103739A (en) | Laminated polyester film and magnetic recording medium |