WO2015083665A1 - 多孔性フィルム、防水・透湿材料およびそれを用いた医療用衣服ならびに防護服 - Google Patents
多孔性フィルム、防水・透湿材料およびそれを用いた医療用衣服ならびに防護服 Download PDFInfo
- Publication number
- WO2015083665A1 WO2015083665A1 PCT/JP2014/081743 JP2014081743W WO2015083665A1 WO 2015083665 A1 WO2015083665 A1 WO 2015083665A1 JP 2014081743 W JP2014081743 W JP 2014081743W WO 2015083665 A1 WO2015083665 A1 WO 2015083665A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- waterproof
- porous film
- moisture
- moisture permeable
- barrier properties
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims abstract description 185
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 230000001681 protective effect Effects 0.000 title claims description 58
- 230000004888 barrier function Effects 0.000 claims abstract description 131
- 239000008280 blood Substances 0.000 claims abstract description 36
- 210000004369 blood Anatomy 0.000 claims abstract description 36
- -1 polypropylene Polymers 0.000 claims description 69
- 230000035699 permeability Effects 0.000 claims description 67
- 239000000835 fiber Substances 0.000 claims description 66
- 239000004743 Polypropylene Substances 0.000 claims description 56
- 229920001155 polypropylene Polymers 0.000 claims description 56
- 241000700605 Viruses Species 0.000 claims description 33
- 238000002844 melting Methods 0.000 claims description 28
- 230000008018 melting Effects 0.000 claims description 28
- 239000004744 fabric Substances 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 229920005672 polyolefin resin Polymers 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000003612 virological effect Effects 0.000 abstract 4
- 230000035807 sensation Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 60
- 229920005989 resin Polymers 0.000 description 42
- 239000011347 resin Substances 0.000 description 42
- 238000010438 heat treatment Methods 0.000 description 34
- 239000013078 crystal Substances 0.000 description 30
- 239000000523 sample Substances 0.000 description 24
- 238000004049 embossing Methods 0.000 description 21
- 239000004745 nonwoven fabric Substances 0.000 description 17
- 238000012545 processing Methods 0.000 description 17
- 239000002994 raw material Substances 0.000 description 15
- 239000000203 mixture Substances 0.000 description 14
- 230000008569 process Effects 0.000 description 14
- 238000009958 sewing Methods 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 13
- 238000012360 testing method Methods 0.000 description 13
- 229920000642 polymer Polymers 0.000 description 12
- 239000003484 crystal nucleating agent Substances 0.000 description 11
- 238000011156 evaluation Methods 0.000 description 11
- 239000002585 base Substances 0.000 description 10
- 230000007423 decrease Effects 0.000 description 10
- 239000003963 antioxidant agent Substances 0.000 description 8
- 238000005259 measurement Methods 0.000 description 8
- 239000000178 monomer Substances 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 7
- 230000003078 antioxidant effect Effects 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 229920005629 polypropylene homopolymer Polymers 0.000 description 7
- 239000011148 porous material Substances 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 230000003247 decreasing effect Effects 0.000 description 6
- 238000009998 heat setting Methods 0.000 description 6
- 239000000155 melt Substances 0.000 description 6
- MBSRTKPGZKQXQR-UHFFFAOYSA-N 2-n,6-n-dicyclohexylnaphthalene-2,6-dicarboxamide Chemical compound C=1C=C2C=C(C(=O)NC3CCCCC3)C=CC2=CC=1C(=O)NC1CCCCC1 MBSRTKPGZKQXQR-UHFFFAOYSA-N 0.000 description 5
- 238000002425 crystallisation Methods 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- LENQNCFDLSESTC-UHFFFAOYSA-N N-cyclohexyl-2-[6-[2-(cyclohexylamino)-2-oxoethyl]naphthalen-2-yl]acetamide Chemical class C1(CCCCC1)NC(=O)CC1=CC2=CC=C(C=C2C=C1)CC(=O)NC1CCCCC1 LENQNCFDLSESTC-UHFFFAOYSA-N 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 210000005069 ears Anatomy 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- 239000002667 nucleating agent Substances 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920000098 polyolefin Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 4
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 3
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000009172 bursting Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000004417 polycarbonate Substances 0.000 description 3
- 229920000515 polycarbonate Polymers 0.000 description 3
- 239000002759 woven fabric Substances 0.000 description 3
- ZGEGCLOFRBLKSE-UHFFFAOYSA-N 1-Heptene Chemical compound CCCCCC=C ZGEGCLOFRBLKSE-UHFFFAOYSA-N 0.000 description 2
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 2
- ADOBXTDBFNCOBN-UHFFFAOYSA-N 1-heptadecene Chemical compound CCCCCCCCCCCCCCCC=C ADOBXTDBFNCOBN-UHFFFAOYSA-N 0.000 description 2
- GQEZCXVZFLOKMC-UHFFFAOYSA-N 1-hexadecene Chemical compound CCCCCCCCCCCCCCC=C GQEZCXVZFLOKMC-UHFFFAOYSA-N 0.000 description 2
- HFDVRLIODXPAHB-UHFFFAOYSA-N 1-tetradecene Chemical compound CCCCCCCCCCCCC=C HFDVRLIODXPAHB-UHFFFAOYSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 241000446313 Lamella Species 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 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
- 230000001580 bacterial effect Effects 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000003776 cleavage reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- LPIQUOYDBNQMRZ-UHFFFAOYSA-N cyclopentene Chemical compound C1CC=CC1 LPIQUOYDBNQMRZ-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000006355 external stress Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 239000010954 inorganic particle Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VAMFXQBUQXONLZ-UHFFFAOYSA-N n-alpha-eicosene Natural products CCCCCCCCCCCCCCCCCCC=C VAMFXQBUQXONLZ-UHFFFAOYSA-N 0.000 description 2
- CCCMONHAUSKTEQ-UHFFFAOYSA-N octadec-1-ene Chemical compound CCCCCCCCCCCCCCCCC=C CCCMONHAUSKTEQ-UHFFFAOYSA-N 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920000747 poly(lactic acid) Polymers 0.000 description 2
- 239000004626 polylactic acid Substances 0.000 description 2
- 229920005633 polypropylene homopolymer resin Polymers 0.000 description 2
- 229920006264 polyurethane film Polymers 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 210000004243 sweat Anatomy 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- VCGRFBXVSFAGGA-UHFFFAOYSA-N (1,1-dioxo-1,4-thiazinan-4-yl)-[6-[[3-(4-fluorophenyl)-5-methyl-1,2-oxazol-4-yl]methoxy]pyridin-3-yl]methanone Chemical compound CC=1ON=C(C=2C=CC(F)=CC=2)C=1COC(N=C1)=CC=C1C(=O)N1CCS(=O)(=O)CC1 VCGRFBXVSFAGGA-UHFFFAOYSA-N 0.000 description 1
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 1
- 229940106006 1-eicosene Drugs 0.000 description 1
- FIKTURVKRGQNQD-UHFFFAOYSA-N 1-eicosene Natural products CCCCCCCCCCCCCCCCCC=CC(O)=O FIKTURVKRGQNQD-UHFFFAOYSA-N 0.000 description 1
- SDRZFSPCVYEJTP-UHFFFAOYSA-N 1-ethenylcyclohexene Chemical compound C=CC1=CCCCC1 SDRZFSPCVYEJTP-UHFFFAOYSA-N 0.000 description 1
- KIHBGTRZFAVZRV-UHFFFAOYSA-N 2-hydroxyoctadecanoic acid Chemical class CCCCCCCCCCCCCCCCC(O)C(O)=O KIHBGTRZFAVZRV-UHFFFAOYSA-N 0.000 description 1
- YHQXBTXEYZIYOV-UHFFFAOYSA-N 3-methylbut-1-ene Chemical compound CC(C)C=C YHQXBTXEYZIYOV-UHFFFAOYSA-N 0.000 description 1
- LDTAOIUHUHHCMU-UHFFFAOYSA-N 3-methylpent-1-ene Chemical compound CCC(C)C=C LDTAOIUHUHHCMU-UHFFFAOYSA-N 0.000 description 1
- KVCQTKNUUQOELD-UHFFFAOYSA-N 4-amino-n-[1-(3-chloro-2-fluoroanilino)-6-methylisoquinolin-5-yl]thieno[3,2-d]pyrimidine-7-carboxamide Chemical compound N=1C=CC2=C(NC(=O)C=3C4=NC=NC(N)=C4SC=3)C(C)=CC=C2C=1NC1=CC=CC(Cl)=C1F KVCQTKNUUQOELD-UHFFFAOYSA-N 0.000 description 1
- PCBPVYHMZBWMAZ-UHFFFAOYSA-N 5-methylbicyclo[2.2.1]hept-2-ene Chemical compound C1C2C(C)CC1C=C2 PCBPVYHMZBWMAZ-UHFFFAOYSA-N 0.000 description 1
- WNEYWVBECXCQRT-UHFFFAOYSA-N 5-methylhept-1-ene Chemical compound CCC(C)CCC=C WNEYWVBECXCQRT-UHFFFAOYSA-N 0.000 description 1
- CYJRNFFLTBEQSQ-UHFFFAOYSA-N 8-(3-methyl-1-benzothiophen-5-yl)-N-(4-methylsulfonylpyridin-3-yl)quinoxalin-6-amine Chemical compound CS(=O)(=O)C1=C(C=NC=C1)NC=1C=C2N=CC=NC2=C(C=1)C=1C=CC2=C(C(=CS2)C)C=1 CYJRNFFLTBEQSQ-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 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 1
- AYCPARAPKDAOEN-LJQANCHMSA-N N-[(1S)-2-(dimethylamino)-1-phenylethyl]-6,6-dimethyl-3-[(2-methyl-4-thieno[3,2-d]pyrimidinyl)amino]-1,4-dihydropyrrolo[3,4-c]pyrazole-5-carboxamide Chemical compound C1([C@H](NC(=O)N2C(C=3NN=C(NC=4C=5SC=CC=5N=C(C)N=4)C=3C2)(C)C)CN(C)C)=CC=CC=C1 AYCPARAPKDAOEN-LJQANCHMSA-N 0.000 description 1
- OXLHAVSOCCRWLA-UHFFFAOYSA-N OC(NC(O)=O)=O.C1=CC=C(C=CC=C2)C2=C1 Chemical compound OC(NC(O)=O)=O.C1=CC=C(C=CC=C2)C2=C1 OXLHAVSOCCRWLA-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229920000690 Tyvek Polymers 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 238000012661 block copolymerization Methods 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 208000006454 hepatitis Diseases 0.000 description 1
- 231100000283 hepatitis Toxicity 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- JOKYEDJSHIKSBI-UHFFFAOYSA-N n-cyclohexyl-4-[3-[4-(cyclohexylcarbamoyl)phenyl]-2,4,8,10-tetraoxaspiro[5.5]undecan-9-yl]benzamide Chemical compound C=1C=C(C2OCC3(CO2)COC(OC3)C=2C=CC(=CC=2)C(=O)NC2CCCCC2)C=CC=1C(=O)NC1CCCCC1 JOKYEDJSHIKSBI-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 1
- 239000011146 organic particle Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 1
- 229930015698 phenylpropene Natural products 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- XGVXKJKTISMIOW-ZDUSSCGKSA-N simurosertib Chemical compound N1N=CC(C=2SC=3C(=O)NC(=NC=3C=2)[C@H]2N3CCC(CC3)C2)=C1C XGVXKJKTISMIOW-ZDUSSCGKSA-N 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- HIEHAIZHJZLEPQ-UHFFFAOYSA-M sodium;naphthalene-1-sulfonate Chemical compound [Na+].C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 HIEHAIZHJZLEPQ-UHFFFAOYSA-M 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- OKUCEQDKBKYEJY-UHFFFAOYSA-N tert-butyl 3-(methylamino)pyrrolidine-1-carboxylate Chemical class CNC1CCN(C(=O)OC(C)(C)C)C1 OKUCEQDKBKYEJY-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/002—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with controlled internal environment
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/12—Surgeons' or patients' gowns or dresses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/005—Shaping by stretching, e.g. drawing through a die; Apparatus therefor characterised by the choice of materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/05—Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/025—Polyolefin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/31—Heat sealable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/58—Cuttability
- B32B2307/581—Resistant to cut
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/582—Tearability
- B32B2307/5825—Tear resistant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2437/00—Clothing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2535/00—Medical equipment, e.g. bandage, prostheses or catheter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2571/00—Protective equipment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
Definitions
- the present invention relates to a porous film excellent in barrier properties such as blood barrier properties and virus barrier properties, puncture strength and moisture permeability.
- the present invention also relates to a waterproof / moisture permeable material using the porous film, which has excellent barrier properties such as blood barrier properties and virus barrier properties, reduces stuffiness when worn, and is excellent in clothing comfort.
- the present invention relates to medical clothing and protective clothing using the waterproof / breathable material.
- surgical gowns are known as surgical gowns worn by doctors and nurses.
- Surgical gowns have excellent bacteria barrier and blood barrier properties, as well as excellent dust proofing properties, but they have poor breathability and moisture permeability. . Therefore, by wearing a surgical underwear called a scrub suit under a surgical gown, the feeling of stuffiness is reduced and the comfort of clothing is improved.
- films such as polyolefin film, fluorine film, polycarbonate polyurethane film, silicone polyurethane film, and chlorosulfonated polyethylene film are laminated and bonded to the knitted fabric composed of cotton spun yarn. It is considered to prevent penetration of bacteria (viruses) such as (virus) and hepatitis (virus) (for example, Patent Documents 1 and 2).
- viruses such as (virus) and hepatitis (virus)
- Patent Documents 1 and 2 By using the above laminate for the fabric, it is possible to achieve sweat absorbency, water absorption, and good touch, and it is almost completed as a medical woven or knitted fabric.
- a film is laminated and bonded to suppress transmission.
- the film is not light and flexible, and the air flow is largely blocked by the film, so that the feeling of stuffiness cannot be sufficiently reduced and the comfort of clothing remains poor.
- barrier properties and clothing comfort are improved by improving the fibers used in the woven fabric into fibers such as core-sheath fibers (for example, Patent Document 3).
- the present invention takes the following means. (1) A porous film having a moisture permeability of 150 g / m 2 ⁇ h or more, a puncture strength of 100 N / mm or more, and a blood barrier property of class 4 or more, (2) A porous film having a moisture permeability of 150 g / m 2 ⁇ h or more, a puncture strength of 100 N / mm or more, and a virus barrier property of class 3 or more, (3) A porous film having a moisture permeability of 150 g / m 2 ⁇ h or more, a puncture strength of 100 N / mm or more, a blood barrier property of class 4 or more, and a virus barrier property of class 3 or more.
- Each layer is bonded between adjacent layers, and the waterproof / moisture permeable material in which adjacent layers are bonded in an area of 50% or less per unit area of the waterproof / moisture permeable material, (9)
- the present invention can provide a porous film excellent in barrier properties such as blood barrier properties and virus barrier properties, puncture strength and moisture permeability. Further, it is possible to provide a waterproof / moisture permeable material using the porous film which is excellent in barrier properties such as blood barrier properties and virus barrier properties, reduces the feeling of stuffiness when worn, and is excellent in clothing comfort. Furthermore, using the waterproof / moisture permeable material, providing a medical garment and a protective garment that are excellent in barrier properties such as blood barrier properties and virus barrier properties, reduce the feeling of stuffiness when worn, and have excellent clothing comfort. Can do.
- the porous film in the waterproof / moisture permeable material of the present invention has excellent barrier properties, excellent puncture strength for maintaining the excellent barrier properties, and excellent moisture permeability for wearer comfort. It is.
- the barrier property means blood barrier property, virus barrier property, water resistance and the like.
- a porous film excellent in barrier properties and puncture strength is inferior in moisture permeability
- a porous film excellent in moisture permeability is inferior in barrier properties and puncture strength.
- the porous film in the waterproof / moisture permeable material of the present invention simultaneously has excellent barrier properties, excellent puncture strength, and excellent moisture permeability as described above.
- the porous film of the present invention is a film having many fine through-holes penetrating both surfaces of the film and having air permeability.
- the resin constituting the porous film may be any of polyolefin resin, polycarbonate, polyamide, polyimide, polyamideimide, aromatic polyamide, fluorine resin and the like.
- polyolefin resins are desirable from the viewpoints of heat resistance, moldability, reduction in production cost, chemical resistance, oxidation resistance, reduction resistance, and the like.
- Examples of the monomer component constituting the polyolefin resin include ethylene, propylene, 1-butene, 1-pentene, 3-methylpentene-1, 3-methyl-1-butene, 1-hexene, 4-methyl- 1-pentene, 5-ethyl-1-hexene, 1-heptene, 1-octene, 1-decene, 1-dodecene, 1-tetradecene, 1-hexadecene, 1-heptadecene, 1-octadecene, 1-eicosene, vinylcyclohexene And compounds having a carbon-carbon double bond such as styrene, allylbenzene, cyclopentene, norbornene, and 5-methyl-2-norbornene.
- Examples thereof include homopolymers of the above monomer components, copolymers composed of at least two selected from the group consisting of the above monomer components, and compositions obtained by blending these homopolymers and copolymers. However, it is not limited to these. In addition to the above monomer components, for example, vinyl alcohol, maleic anhydride or the like may be copolymerized or graft polymerized, but is not limited thereto.
- the base material for the medical fabric is preferably polyethylene using ethylene as a monomer component and / or polypropylene using propylene as a monomer component.
- polypropylene using propylene as a monomer component is preferable from the viewpoint of heat resistance, gas permeability, porosity, and the like, and the main component is preferable.
- the “main component” means that the proportion of a specific component in all components is 50% by mass or more, more preferably 80% by mass or more, further preferably 90% by mass or more, and most preferably Means 95% by mass or more.
- a wet method or a dry method may be used as a method for forming the through-hole in the porous film.
- the wet method is a method of forming voids using a solvent.
- the polyolefin resin is used as a matrix resin, and the extract to be extracted after being formed into a sheet is added, mixed, formed into a sheet, and the extract is extracted using a good solvent for the extract after biaxial stretching or before stretching.
- Various methods have been proposed for extracting voids by generating voids in the matrix resin.
- the dry method is a method of forming voids at the time of stretching after film formation. Specifically, by adopting a low temperature extrusion and a high draft ratio at the time of melt extrusion, a lamella in a film before stretching formed into a sheet. There has been proposed a method (so-called lamellar stretching method) in which the structure is controlled and this is uniaxially stretched to cause cleavage at the lamella interface to form voids. In addition to this, a large amount of incompatible resin is added as inorganic particles or polypropylene, which is a matrix resin, and a sheet is formed and stretched to cause cleavage at the interface between the particles and the polypropylene resin, thereby forming voids.
- a method of forming has also been proposed.
- the so-called ⁇ is formed by utilizing the crystal density difference and crystal transition between ⁇ -type crystal ( ⁇ crystal) and ⁇ -type crystal ( ⁇ crystal), which are polymorphs of polypropylene, to form voids in the film.
- ⁇ crystal ⁇ -type crystal
- ⁇ crystal ⁇ -type crystal
- Many proposals of a method called a crystal method have been made.
- the ⁇ crystal forming ability of the porous film is preferably 40% or more. If the ⁇ -crystal forming ability is less than 40%, the amount of ⁇ -crystals is small at the time of film production, so the number of voids formed in the film is reduced by utilizing the transition to ⁇ -crystal, and as a result, only a film with low permeability is obtained. It may not be possible. From this viewpoint, the ⁇ crystal forming ability is more preferably 65% or more, and further preferably 70% or more.
- the upper limit of the ⁇ -crystal forming ability is not particularly limited, but it exceeds 99.9% by adding a large amount of the ⁇ -crystal nucleating agent described later or the stereoregulation of the polypropylene resin to be used.
- the industrial practical value is low, for example, the film forming stability is lowered. From such an industrial viewpoint, the ⁇ crystal forming ability is preferably 99.9% or less, and more preferably 95% or less.
- a polypropylene resin with a high isotactic index is used, or a ⁇ crystal is selectively formed by adding it to a polypropylene resin called a ⁇ crystal nucleating agent.
- the crystallization nucleating agent to be used is preferably used as an additive.
- ⁇ crystal nucleating agents include alkali or alkaline earth metal salts of carboxylic acids such as calcium 1,2-hydroxystearate and magnesium succinate, and N, N′-dicyclohexyl-2,6-naphthalenedicarboxyamide.
- Amide compounds such as 3,9-bis [4- (N-cyclohexylcarbamoyl) phenyl] -2,4,8,10-tetraoxaspiro [5.5] undecane, benzenesulfonic acid
- aromatic sulfonic acid compounds such as sodium and sodium naphthalene sulfonate, imide carboxylic acid derivatives, phthalocyanine pigments, and quinacridone pigments.
- amide compounds disclosed in JP-A-5-310665 can be preferably used.
- the addition amount of the ⁇ crystal nucleating agent is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, based on the whole polypropylene resin. If it is less than 0.05% by mass, formation of ⁇ crystals becomes insufficient, and the air permeability of the porous film may be lowered. On the other hand, when the addition amount of the ⁇ crystal nucleating agent exceeds 0.5% by mass based on the whole polypropylene resin, coarse voids are formed, and physical property changes during application of organic solvent and drying may increase. Therefore, it is preferably 0.5% by mass or less, and more preferably 0.3% by mass or less.
- the polypropylene resin constituting the porous film of the present invention preferably has a melt flow rate (hereinafter referred to as MFR, measurement conditions are 230 ° C., 2.16 kg) in the range of 2 to 30 g / 10 min. It is preferable that it is an isotactic polypropylene resin.
- MFR melt flow rate
- measurement conditions are 230 ° C., 2.16 kg
- the MFR is more preferably 3 g / 10 min or more.
- the MFR exceeds 30 g / 10 min, the molecular weight becomes too low, so that the film is easily broken during stretching, and the productivity may be lowered. From this viewpoint, the MFR is more preferably 20 g / 10 min or less.
- the isotactic index is preferably 90% or more, and more preferably 95% or more. Further, the upper limit is preferably 99.9% or less, and more preferably 99% or less. If the isotactic index is less than 90%, the crystallinity of the resin is low, and it may be difficult to achieve high air permeability.
- a polypropylene resin in the present invention not only a homopolypropylene resin can be used, but also from the viewpoint of stability in the film-forming process, film-forming properties, and uniformity of physical properties, an ethylene component or butene is added to polypropylene.
- a resin obtained by copolymerizing an ⁇ -olefin component such as hexene or octene in an amount of 5% by mass or less, more preferably 2.5% by mass or less can be used.
- the form of introduction of the comonomer (copolymerization component) into polypropylene may be either random copolymerization or block copolymerization.
- high MFR isotactic polypropylene having an MFR of 70 g / 10 min or more preferably 100 g / 10 min or more, more preferably 500 g / 10 min or more in terms of improving moisture permeability.
- a high MFR isotactic polypropylene having an MFR of 70 g / 10 min or more has not been used in the field of films because of poor stretchability and a decrease in strength.
- the total amount of the polypropylene resin is 100% by mass, 0.1% to 20% by mass of the high MFR isotactic polypropylene allows the high MFR isotactic polypropylene to be added in a small amount so that the molecular chain terminal at the crystal interface is Increases the concentration and promotes pore formation at the crystal interface during stretching, that is, it works as a pore opening aid, resulting in uniform pore opening and excellent barrier properties but also excellent moisture permeability and conflicting properties. It is thought that we can plan.
- the high MFR isotactic polypropylene is preferably contained in an amount of 1% by mass or more, more preferably 2% by mass or more. It is more preferably 10% by mass or less, and still more preferably 5% by mass or less, from the viewpoint of achieving a balance between characteristics of moisture permeability, barrier properties, and puncture strength.
- an antioxidant In the polypropylene resin that forms the porous film of the present invention, an antioxidant, a heat stabilizer, a light stabilizer, a neutralizer, an antistatic agent and a lubricant composed of organic particles, as long as the effects of the present invention are not impaired. Furthermore, you may contain various additives, such as an antiblocking agent, a filler, and an incompatible polymer.
- an antioxidant for the purpose of suppressing the oxidative deterioration due to the thermal history of the polypropylene resin, but the amount of the antioxidant added is preferably 2 parts by mass or less with respect to 100 parts by mass of the polypropylene resin. More preferably, it is 1 mass part or less, More preferably, it is 0.5 mass part or less.
- it is preferable not to add inorganic particles because they may fall off and may adversely affect medical work.
- the porous film of the present invention preferably has a moisture permeability of 150 g / m 2 ⁇ h or more, which is a moisture permeability evaluation scale.
- a moisture permeability evaluation scale 150 g / m 2 ⁇ h or more.
- the moisture permeability is evaluated by the A-1 method described in JIS L 1099: 2012.
- the moisture permeability can be controlled by adjusting the addition amount of the ⁇ crystal nucleating agent in the raw material and the crystallization temperature, and adjusting the content of high molecular weight isotactic polypropylene contained in the raw material.
- the content of ⁇ crystal nucleating agent in the raw material is increased within the range of 0.05 to 0.5 mass%, the crystallization temperature is increased, or the content of high MFR isotactic polypropylene is included in the raw material.
- the rate within the range of 0.1 to 20% by mass, the moisture permeability can be increased.
- the porous film of the present invention preferably has a puncture strength of 100 N / mm or more.
- the puncture strength is less than 100 N / mm
- the porous film of the present invention is used as a base material for a medical fabric, the workability is lowered during suturing, or the porous film of the present invention is used as a base material for a medical fabric.
- the porous film may be broken at the time of on-site work such as surgery to lower the barrier property of the porous film, and the barrier property as protective clothing may be reduced. From the viewpoint of achieving both barrier properties and moisture permeability, the upper limit of the puncture strength is actually 1,000 N / mm.
- the puncture strength is calculated as the puncture strength per 1 mm thickness.
- the puncture strength can be controlled by adjusting the temperature of the cast drum, the stretching ratio and temperature in the longitudinal direction, the lateral stretching speed and ratio, the temperature and time in the heat treatment step, and the relaxation rate in the relaxation zone.
- the strength can be increased by increasing the stretching temperature in the longitudinal direction within the range of 90 to 140 ° C., and the stretching ratio in the longitudinal direction can be increased within the range of 3 to 7 times,
- the stretching speed is increased within the range of 500 to 10,000% / min
- the transverse stretching ratio is increased within the range of 4 to 15 times
- the temperature in the heat treatment step is within the range of 140 to 170 ° C.
- the puncture strength can be increased by raising the temperature at a higher temperature or by increasing the relaxation rate in the relaxation zone within a range of 5 to 35%.
- the porous film of the present invention preferably has a blood barrier property of class 4 or higher.
- the blood barrier property is less than class 4, the barrier property of the medical protective garment using the porous film of the present invention as the base material of the medical fabric becomes insufficient, and blood may permeate depending on the operation.
- blood barrier properties are preferably class 5 or higher, and more preferably class 6.
- the blood barrier property is evaluated based on the procedure D described in JIS T 8060: 2007.
- the blood barrier property can be controlled by adjusting the temperature of the cast drum, the stretching ratio and temperature in the longitudinal direction, the transverse stretching speed and ratio, the temperature and time in the heat treatment step, and the relaxation rate in the relaxation zone.
- the stretching temperature in the longitudinal direction is set to a higher temperature within the range of 90 to 140 ° C.
- the stretching ratio in the longitudinal direction is increased within the range of 3 to 7 times
- the transverse stretching speed is set to 500 to 10,000%.
- the temperature in the heat treatment process within the range of 4 to 15 times, the temperature in the heat treatment process to be higher in the range of 140 to 170 ° C, in the relaxation zone
- the blood barrier property can be increased by increasing the relaxation rate of the blood in a range of 5 to 35%.
- the porous film of the present invention preferably has a virus barrier property of class 3 or higher.
- the virus barrier property is less than class 3, the barrier property of the medical protective clothing using the porous film of the present invention as the base material for the medical fabric becomes insufficient, and bacteria and viruses may permeate depending on the operation.
- the virus barrier properties are preferably class 4 or higher, more preferably class 5 or higher, and even more preferably class 6.
- the virus barrier property is evaluated based on the procedure D1 described in JIS T 8061: 2010.
- the virus barrier property can be controlled by adjusting the temperature of the cast drum, the stretching ratio and temperature in the longitudinal direction, the transverse stretching speed and ratio, the temperature and time in the heat treatment step, and the relaxation rate in the relaxation zone.
- the stretching temperature in the longitudinal direction is set to a higher temperature within the range of 90 to 140 ° C.
- the stretching ratio in the longitudinal direction is increased within the range of 3 to 7 times
- the transverse stretching speed is set to 500 to 10,000%.
- the temperature in the heat treatment process within the range of 4 to 15 times, the temperature in the heat treatment process to be higher in the range of 140 to 170 ° C, in the relaxation zone
- the virus barrier property can be increased by increasing the relaxation rate of the protein within a range of 5 to 35%.
- the amount of ⁇ crystal nucleating agent added in the raw material adjustment of the crystallization temperature,
- the amount of MFR isotactic polypropylene added, the temperature of the cast drum, the stretching ratio and temperature in the longitudinal direction, the lateral stretching speed and ratio, the temperature and time in the heat treatment step, and the relaxation rate in the relaxation zone are within the ranges described below. Can be controlled.
- the moisture permeability becomes insufficient. Therefore, the moisture permeability, barrier properties, and puncture strength characteristics are the first by adding the amount of ⁇ -crystal nucleating agent and the crystallization temperature in the raw material within a specific range and adding a specific amount of high MFR isotactic polypropylene in the raw material. It was possible to balance the balance.
- the porous film of the present invention preferably has an area heat shrinkage rate of 10% or less after treatment at 130 ° C. for 1 hour.
- autoclave sterilization may be performed, and the autoclave sterilization is usually performed by increasing the temperature to 121 ° C. with saturated water vapor at 2 atm and performing the treatment for 20 minutes. If the heat shrinkage rate is greater than 10%, the porous film may shrink, moisture permeability may be reduced, and clothing comfort may be reduced.
- the area heat shrinkage after treatment at 130 ° C. for 1 hour is more preferably 0 to 10%, more preferably 0 to 7%, and further preferably 0 to 5%.
- the porous film of the present invention preferably has a film thickness of 5 ⁇ m or more. If the thickness is less than 5 ⁇ m, the film may break during processing or use.
- the film thickness is more preferably 10 ⁇ m or more, and the upper limit is preferably 500 ⁇ m or less.
- the method for producing the porous film of the present invention will be described based on a specific example.
- the manufacturing method of the porous film of this invention is not limited to this.
- melt blending There are dry blending and melt blending methods as the resin raw material to be used.
- the viscosity of the polypropylene resin used may be greatly different. It is preferable to employ a melt blend because resins having different fiscal years may disperse unevenly and the characteristics may be insufficient.
- Extruders used in melt blending may be either single-screw extruders or twin-screw extruders, but they can be mixed at high shear, and the mixing ratio is easily controlled to be uniform, raw material uniformity, resin deterioration suppression, and production. It is preferable to carry out with a twin screw extruder from a viewpoint of property.
- polypropylene resin 96.5 parts by mass of commercially available homopolypropylene resin with MFR 4 g / 10 min, 3 parts by mass of high MFR polypropylene resin with MFR 1,000 g / 10 min, and N, N′-dicyclohexyl-2,6 as ⁇ crystal nucleating agent -Feed raw materials from a measuring hopper to a twin screw extruder so that 0.3 parts by weight of naphthalene dicarboxyamide and 0.2 parts by weight of an antioxidant are mixed at this ratio, and melt knead to form strands from a die It discharges, it cools and solidifies in a 25 degreeC water tank, cuts in chip shape, and a polypropylene raw material (a) is prepared. At this time, the melting temperature is preferably 280 to 310 ° C.
- the raw material (a) is supplied to a single screw extruder and melt extrusion is performed at 200 to 230 ° C. And after removing a foreign material, a modified polymer, etc. with the filter installed in the middle of the polymer pipe
- the surface temperature of the cast drum is preferably 105 to 130 ° C. from the viewpoint of controlling the ⁇ crystal fraction of the cast sheet to be high.
- the forming of the end portion of the sheet affects the subsequent stretchability, and therefore it is preferable that the end portion is sprayed with spot air to be in close contact with the drum. Further, air may be blown over the entire surface using an air knife as necessary from the state in which the entire sheet is in close contact with the drum.
- the obtained cast sheet is biaxially oriented to form pores in the film.
- a biaxial orientation method the film is stretched in the longitudinal direction of the film and then stretched in the width direction, or the sequential biaxial stretching method in which the film is stretched in the width direction and then stretched in the longitudinal direction.
- a simultaneous biaxial stretching method or the like can be used, but it is preferable to adopt a sequential biaxial stretching method from the viewpoint of moisture permeability, puncture strength, and barrier properties, and in particular, stretching in the longitudinal direction and then stretching in the width direction. It is preferable.
- the cast sheet is controlled to a temperature at which the cast sheet is stretched in the longitudinal direction.
- a temperature control method a method using a temperature-controlled rotating roll, a method using a hot air oven, or the like can be adopted.
- the stretching temperature in the longitudinal direction is preferably 90 to 140 ° C.
- the stretching temperature in the longitudinal direction is less than 90 ° C., the film may be broken, the puncture strength may be decreased, or the barrier property may be decreased. If the stretching temperature in the longitudinal direction exceeds 140 ° C., moisture permeability may be reduced.
- a more preferred longitudinal stretching temperature is 110 to 135 ° C., and a particularly preferred longitudinal stretching temperature is 125 to 130 ° C.
- the stretching ratio in the longitudinal direction is preferably 3 to 7 times.
- the draw ratio in the longitudinal direction is less than 3, the moisture permeability may be lowered.
- the higher the draw ratio the higher the moisture permeability.
- the draw ratio in the longitudinal direction exceeds 7 times, the film may be broken, the puncture strength may be lowered, or the barrier property may be lowered.
- the draw ratio is more preferably 4.5 to 6 times.
- the longitudinal stretching speed at this time is preferably 200,000% / min (2001 times / min) or more, more preferably 250,000% / min (2501 times / min) or more, 300 More preferably, it is at least 1,000% / min (3001 times / min).
- the pore structure after biaxial stretching forms a network in the three-dimensional direction, making it easy to achieve both moisture permeability and barrier properties.
- the stretching speed is too high, film breakage occurs during longitudinal stretching. May become easier, moisture permeability may deteriorate.
- the stretching temperature in the width direction is preferably 130 to 155 ° C. If the stretching temperature in the width direction is less than 130 ° C., the film may be broken, the puncture strength may be decreased, or the barrier property may be decreased. Moreover, when the extending
- the draw ratio in the width direction is preferably 4 to 15 times. If the draw ratio in the width direction is less than 4 times, moisture permeability may be reduced.
- the draw ratio is preferably high, but if the draw ratio in the width direction exceeds 15 times, the film may be broken and productivity may be lowered or moisture permeability may be lowered. From the viewpoint of coexistence of moisture permeability, puncture strength, and barrier property, the draw ratio is more preferably 6 to 12 times, still more preferably 8 to 11 times.
- the transverse stretching speed at this time is preferably 500 to 10,000% / minute (6 to 101 times / minute), and is preferably 1,500 to 7,000% / minute (16 to 71 times / minute). ) Is more preferable.
- the area ratio (longitudinal stretch ratio ⁇ lateral stretch ratio) is preferably 30 to 90 times.
- a heat treatment step is performed in the tenter.
- the heat treatment step is to perform heat treatment with the width after transverse stretching, further heat treatment while relaxing the film by narrowing the width of the tenter, and performing heat treatment with the width after relaxation, moisture permeability, puncture strength From the viewpoint of controlling barrier properties, it is preferable.
- the heat setting temperature is preferably 140 to 170 ° C.
- the puncture strength may be lowered or the barrier property may be lowered.
- the heat setting temperature exceeds 170 ° C., the porous film surface melts and moisture permeability decreases, or the porous film shrinks in the width direction and breaks in the heat treatment process, which may reduce productivity. is there.
- a temperature of 150 to 168 ° C. is more preferable from the viewpoint of achieving both moisture permeability, puncture strength, and barrier properties.
- the heat treatment time is preferably 0.1 second or more and 10 seconds or less, more preferably 3 seconds or more and 8 seconds or less, from the viewpoints of puncture strength, barrier properties, and productivity.
- the relaxation rate is preferably 5 to 35%. If the relaxation rate is less than 5%, the puncture strength may decrease, the barrier property may decrease, or the heat shrinkage rate in the width direction in the width direction may increase. If the relaxation rate exceeds 35%, the moisture permeability may decrease or the physical property unevenness may increase. From the viewpoint of achieving both moisture permeability, puncture strength, and barrier properties, the content is more preferably 10 to 25%, and further preferably 15 to 25%.
- the relaxation temperature is preferably 155 to 170 ° C.
- the relaxation temperature is less than 155 ° C.
- the contraction stress for relaxation is lowered, and the above-described high relaxation rate may not be achieved, the puncture strength may be decreased, and the barrier property may be decreased.
- the relaxation temperature exceeds 170 ° C., the polymer around the pores melts due to the high temperature, and the moisture permeability may decrease. From the viewpoint of moisture permeability, puncture strength, and barrier properties, the temperature is more preferably 160 to 168 ° C.
- the relaxation rate is preferably 100 to 1,000% / min. When the relaxation rate is less than 100% / min, it is necessary to slow down the film forming rate or increase the tenter length, and the productivity may be low. If it exceeds 1,000% / min, the speed at which the film shrinks will be slower than the speed at which the rail width of the tenter shrinks, the film flutters in the tenter and tears, the unevenness in the width direction increases, and flatness decreases. May occur.
- the relaxation rate is more preferably 150 to 500% / min.
- the heat setting temperature after relaxation is preferably 155 to 170 ° C. If the heat-fixing temperature after relaxation is less than 155 ° C., the contraction stress for relaxation becomes low, the above-mentioned high relaxation rate may not be achieved, the puncture strength may decrease, and the barrier property may decrease. . When the heat setting temperature after relaxation exceeds 170 ° C., the polymer around the pores melts due to the high temperature, and the moisture permeability may decrease. From the viewpoint of moisture permeability, puncture strength, and barrier properties, the heat setting temperature after relaxation is more preferably 160 to 168 ° C. The film after the heat treatment step is removed by slitting the ears gripped by the tenter clip, and wound around a core with a winder to obtain a product.
- the porous film of the present invention is excellent in productivity, excellent in barrier properties such as blood barrier properties and virus barrier properties, reduces the stuffiness when worn, and is excellent in clothing comfort. Therefore, it can be suitably used as a composite with a base material or a nonwoven fabric of a medical fabric. In addition, it has excellent barrier properties such as blood barrier properties and virus barrier properties, reduces the feeling of stuffiness when worn, and provides excellent clothing comfort. Therefore, the protective clothing using the medical fabric, the base material, and the composite can be suitably used as a medical protective clothing, particularly a surgical clothing.
- the waterproof / moisture permeable material of the present invention is a waterproof / moisture permeable material in which at least a fiber layer and the porous film are laminated, and the waterproof / moisture permeable material includes each layer constituting the waterproof / moisture permeable material. Adhering between adjacent layers, adjacent layers are bonded in an area of 50% or less per unit area of the waterproof / moisture permeable material.
- that at least the fiber layer and the porous film are laminated means that the porous film and the fiber layer are combined into two or more layers. The laminated structure will be described later.
- the waterproof / moisture permeable material of the present invention has (a) excellent barrier properties due to the porous film, (b) excellent barrier retention properties due to the excellent puncture strength of the porous film itself and the excellent wear strength of the fiber layer, etc. (C)
- the porous film itself has all of excellent moisture permeability and waterproof / moisture permeable material having a specific adhesion area ratio, and is suitable for medical clothes and protective clothing. It is particularly suitable for use.
- the fiber layer used for the waterproof / breathable material of the present invention gives the waterproof / breathable material a sufficient tensile and wear strength, and an appropriate hand feeling and softness.
- the fabric shape used as the fiber layer include fiber structures such as woven fabric, knitted fabric, nonwoven fabric, and paper. Of these, non-woven fabrics are preferred from the viewpoints of cost, tensile strength, and wear strength.
- Nonwoven fabrics include wet nonwoven fabrics, resin bond dry nonwoven fabrics, thermal bond dry nonwoven fabrics, spunbond dry nonwoven fabrics, needle punch dry nonwoven fabrics, water jet punch dry nonwoven paper fabrics, flash spinning dry nonwoven fabrics, etc.
- Nonwoven fabrics produced by a papermaking method capable of uniform basis weight and thickness can also be preferably used. Of these, a spunbonded dry nonwoven fabric is preferable from the viewpoints of cost, tensile strength, and wear strength.
- Examples of the material of the fiber layer include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluorine-based resins, and mixtures thereof.
- polyolefins such as polyethylene and polypropylene
- polyesters such as polyethylene terephthalate and polylactic acid
- polycarbonate polystyrene
- polyphenylene sulfite polyphenylene sulfite
- fluorine-based resins fluorine-based resins
- examples of the material of the fiber layer include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluorine-based resins, and mixtures thereof.
- those mainly composed of polyolefin or polylactic acid are preferable from the
- the same kind of resin means that the composition of the monomers constituting the main component is the same.
- the lower limit of the melting point of the material constituting the fiber layer is preferably 135 ° C. or higher, more preferably 150 ° C. or higher. More preferably, the temperature is higher than or equal to ° C.
- the upper limit of the melting point of the material constituting the fiber layer is preferably 175 ° C. or less, and more preferably 170 ° C. or less.
- the tensile strength of the fiber layer is preferably 5 N / mm or more from the viewpoint of excellent tensile strength of the waterproof / breathable material. More preferably, it is 10 N / mm or more, More preferably, it is 15 N / mm or more.
- the upper limit of the tensile strength is preferably 200 N / mm or less from the viewpoint of ensuring appropriate softness of the waterproof / breathable material.
- the tensile strength is calculated as the tensile strength per 1 mm thickness.
- the burst strength of the fiber layer is preferably 300 kPa or more, preferably 400 kpa or more, more preferably 500 kPa or more, from the viewpoint of making the waterproof / moisture permeable material excellent in burst strength, while the upper limit of the burst strength is , 2000 kPa or less, preferably 1500 kPa or less.
- the bursting strength is 2000 kPa or less, the flexibility and light weight of the waterproof / breathable material can be improved when the waterproof / breathable material is used.
- the abrasion strength of the fiber layer is preferably 3 or more from the viewpoint of excellent abrasion resistance of the waterproof / breathable material. More preferably, it is quaternary or higher.
- the preferable lower limit of the thickness of the fiber layer is 0.01 mm or more, more preferably 0.1 mm or more, while the upper limit of the thickness is 5 mm or less, preferably 1 mm or less.
- the minimum of the fabric weight of a preferable fiber layer is 10 g / m ⁇ 2 > or more, Preferably it is 20 g / m ⁇ 2 > or more,
- the upper limit of fabric weight is 200 g / m ⁇ 2 > or less, Preferably, it is the range of 100 g / m ⁇ 2 > or less.
- the fiber layer used in the present invention is preferably subjected to functional processing such as antistatic processing on the surface.
- the antistatic processing is preferably a method of processing a conductive polymer on the surface or a method of processing a hygroscopic polymer on the surface.
- the opposite surface in contact with the porous film it is preferable to process the opposite surface in contact with the porous film to be laminated.
- the antistatic portion is in contact with the porous film, the electret performance of the fiber layer may deteriorate.
- the moisture permeability of the waterproof / moisture permeable material of the present invention is 150 g / m 2 ⁇ h or more, preferably 200 g / m 2 ⁇ h or more, as an evaluation scale, from the viewpoint of ensuring excellent wearability. More preferably, it is 300 g / m 2 ⁇ h or more.
- the upper limit is not particularly limited, but is preferably 1000 g / m 2 ⁇ h or less from the viewpoint of improving the barrier property.
- the moisture permeability is evaluated by the A-1 method described in JIS L 1099: 2012.
- the tensile strength of the waterproof / breathable material of the present invention is preferably 5 N / 50 mm or more from the viewpoint of practicality when working at the time of wearing. More preferably, it is 10 N / 50 mm or more, More preferably, it is 15 N / 50 mm or more.
- the upper limit is not particularly limited, but is preferably 200 N / 50 mm or less from the viewpoint of ensuring appropriate softness of the waterproof / moisture permeable material.
- the rupture strength of the waterproof / breathable material of the present invention is preferably 300 kPa or more, more preferably 400 kPa or more, and further preferably 500 kPa or more, from the viewpoint of further suppressing breakage due to external stress during wearing. Although it does not specifically limit, 2000 kPa or less is preferable and 1500 kPa is more preferable. When the burst strength is 2000 kPa or less, the waterproof and moisture-permeable material is more excellent in flexibility and light weight.
- the abrasion strength of the waterproof / moisture permeable material of the present invention is the appearance evaluation when the surface of the waterproof / moisture permeable material is worn from the viewpoint of improving the abrasion resistance of the surface due to external stress during wearing. Is preferably tertiary or higher. More preferably, it is quaternary or higher.
- the water pressure resistance of the waterproof / moisture permeable material of the present invention is preferably 30 kPa or more, more preferably 50 kPa or more, and further 65 kPa or more, from the viewpoint of preventing water from entering from the outside during wearing. preferable.
- the upper limit of the water pressure resistance is preferably 300 kPa or less.
- the water pressure resistance is 300 kPa or less, an appropriate number of through holes of the porous film can be provided, and the moisture permeability of the waterproof / moisture permeable material can be further improved.
- the water pressure resistance of the waterproof / breathable material can also be adjusted by changing the number of nonwoven fabrics laminated on the waterproof / breathable material.
- the blood barrier property of the waterproof / breathable material of the present invention is preferably class 4 or higher.
- the blood barrier property is class 4 or higher, when the waterproof / moisture permeable material is used as medical clothing or protective clothing, the blood barrier property is more excellent. 5 or more is more preferable, and class 6 is more preferable.
- the virus barrier property of the waterproof / breathable material of the present invention is preferably class 3 or higher.
- the virus barrier property is Class 3 or higher, when the waterproof / moisture permeable material is used as medical clothes or protective clothing, the barrier property against those viruses becomes more excellent.
- Class 4 or higher is more preferable, class 5 or higher is more preferable, and class 6 is particularly preferable.
- the waterproof / moisture permeable material of the present invention preferably has a basis weight of 15 to 250 g / m 2 . If the basis weight is less than 15 g / m 2 , the tensile strength, burst strength, wear strength, and water pressure resistance may be insufficient. From this point of view, the basis weight, 20 g / m 2 or more preferably, 30 g / m 2 or more is more preferable. On the other hand, when the weight per unit area exceeds 250 g / m 2 , the clothes become heavier and less comfortable to wear. From this point of view, the basis weight is more preferably from 150 g / m 2 or less, 100 g / m 2 or less is more preferred.
- the melting point difference between the material constituting the fiber layer and the material constituting the porous film is preferably 40 ° C. or less. More preferably, it is 30 degrees C or less, More preferably, it is 20 degrees C or less.
- fusing point of the raw material which comprises a porous film is higher than melting
- the melting point of the material composing the fiber layer and the material composing the porous film can be measured using a differential scanning calorimeter DSC-60 manufactured by Shimadzu Corporation, as will be described in detail later.
- the melting point of the material constituting the fiber layer and the porous film may be measured for the fiber layer and the porous film before lamination, or from the laminate of the fiber layer and the porous film, the fiber layer and the porous film. May be peeled off, and a portion not heated in the laminating step, that is, a portion not bonded may be isolated, and the melting point of the material constituting each layer may be measured.
- Examples of the laminated structure include the following (i) to (v).
- Two-layer structure with film iii) Fiber layer, porous film and fiber layer in this order, three-layer structure sandwiching the porous film
- iv Fiber layer with high wear strength and high tensile strength and burst strength Two layers with a fiber layer are overlapped, and a fiber laminate in which the above two fiber layers are stacked sandwiches a porous film.
- said 3 layer structure it has the effect which a porous film is damaged and a barrier property is hard to be lost by pinching
- a two-layer structure having a porous film on the outer surface of the garment and a fiber layer on the inner surface of the garment is also preferable.
- the waterproof and moisture permeable material can be more excellent in moisture permeability and light weight while ensuring the desired tensile strength and bursting strength of the waterproof and moisture permeable material. it can.
- the waterproof / breathable material of the present invention is formed by adhering each layer constituting the waterproof / breathable material between adjacent layers.
- adjacent layers are preferably bonded in an area of 50% or less per unit area of the waterproof / moisture permeable material. If the adjoining layers are bonded to more than 50% per unit area of the waterproof / breathable material, the moisture permeability of the waterproof / breathable material is significantly reduced, and the waterproof / breathable material is used as medical clothing. In some cases, good wearability may not be obtained even when wearing protective clothing.
- the upper limit is preferably 40% or less, more preferably 30% or less, and particularly preferably 15% or less.
- the lower limit is preferably 3% or more, more preferably 5% or more, from the viewpoint of ensuring the adhesive strength, tensile strength, bursting strength, and water pressure resistance of the waterproof / moisture permeable material.
- the ratio of the adhesion area per unit area of the waterproof / moisture permeable material described above (hereinafter referred to as the adhesion area ratio) is the pattern of the embossing roll in the case of ultrasonic bonding processing. In the case of heat bonding processing using a heat embossing roll having a design and a pattern height of 1 mm or more, it can be adjusted by designing the pattern of the heat embossing roll.
- each embossing roll is not particularly limited, but patterns such as a pinpoint pattern, a cross pattern, a lattice pattern, a wave pattern, and a diagonal pattern can be used.
- a pinpoint pattern a cross pattern
- a lattice pattern a wave pattern
- a diagonal pattern a pattern that is a symmetrical to the adhesive force between the porous film and the fiber layer.
- left-right symmetry is preferable, and pinpoint patterns, cross patterns, lattice patterns, wave patterns, mesh patterns, and the like are preferable.
- the adhesion part of a waterproof / moisture permeable material is a film
- the thickness of the film-like portion is preferably 0.01 to 0.5 mm.
- the area of one bonding portion is preferably 0.001 mm 2 to 100 mm 2 . These thicknesses and areas can be obtained by cutting the cross section of the bonded portion, enlarging the cross section area with an SEM photograph, and performing image processing.
- the waterproof / moisture permeable material manufacturing method of the present invention is a manufacturing method including a step of superposing adjacent layers constituting the waterproof / moisture permeable material, and a step of performing a heat treatment on an adhesion scheduled portion of the overlapped adjacent layers. .
- the layers constituting the waterproof / breathable material are the porous film and the fiber layer described above. And superimposing adjacent layers constituting the waterproof / moisture permeable material means superposing these layers as adjacent layers without interposing other layers.
- the above-described (i) to (v) are preferable examples of the laminated structure.
- the step of applying heat treatment to the site where the adjacent layers of the stacked layers are to be bonded is a step of applying a thermal bonding process to the site where the fiber layer or porous film is desired to be bonded, and the details will be described below.
- the adhesion between the fiber layer and the porous film will be described as an example.
- the handle height is 1 mm or more and It is preferable to use a heat bonding process using a heat embossing roll whose surface is coated with a resin such as a fluororesin.
- an ultrasonically vibrating blade and an adhesive material are sandwiched between embossing rolls having a specific pattern at a pressure of 0.01 MPa to 1 MPa, and a vibrator called a blade is ultrasonically vibrated at 1 to 50,000 Hz.
- a method of oscillating and melt-bonding a pattern portion that comes into contact with the blade is exemplified.
- the blade is mainly made of titanium, which is resistant to friction, but aluminum, stainless steel alloy, etc. are also used.
- a blade having a width of 10 to 50 cm is used.
- the heat bonding process using a hot embossing roll with a pattern height of 1 mm or more uses a heat embossing roll with an embossing pattern depth of 1 mm or more, and performs the bonding process without applying heat to the fabric other than the pattern.
- the pattern height refers to the distance between the upper part and the lower part of the edge constituting the embossed pattern of the hot embossing roll.
- the temperature of hot embossing is preferably 60 ° C. or higher, more preferably 70 ° C. or higher, and further preferably 125 ° C. or higher. On the other hand, it is preferably 175 ° C. or lower, more preferably 165 ° C. or lower, and further preferably 155 ° C.
- the temperature of the heat embossing is preferably between the melting point of the material constituting the porous film and the temperature 30 ° C. lower than the melting point of the material constituting the fiber layer, and the melting point of the material constituting the porous film and the fiber More preferably, it is between the melting points of the materials constituting the layer.
- the temperature of the heat embossing is 30 ° C. lower than the melting point of the material constituting the porous film and the melting point of the material constituting the fiber layer, the heat embossing is hardly affected by the thermal shrinkage of the porous film, It becomes easy to demonstrate the characteristics.
- a nip roll having silicon rubber having a hardness of 50 to 90 ° is used.
- the pressing pressure of the hot embossing roll and the nip roll sandwiching it is 0.5 MPa or more, preferably 1 MPa or more, on the other hand, 10 MPa or less, preferably 5 MPa or less. Moreover, it can prevent that material is taken by a nip roll and workability worsens by applying heat from one side (heat embossing roll). In addition, if a resin such as fluororesin is coated on the surface of the hot embossing roll, the peelability between the hot embossing roll and the material will be improved, and the porous film will be damaged at the edge of the hot embossing roll, impairing the barrier properties. Can be prevented.
- a material whose hardness is softer than that of a metal roll such as a silicon roll as the material of the receiving roll at the counter electrode of the hot embossing roll.
- any of the above-mentioned adhesion processing methods can further suppress the application of heat to a part other than the desired adhesion part, so that there is little damage to the fiber layer and the porous film due to heat treatment, and the fiber layer is melted or the porous film
- the shrinkage of the waterproof / breathable material due to heat applied to the film can be further suppressed.
- the waterproof / moisture permeable material of the present invention is excellent in strength and abrasion strength and can suppress particle ingress, so that it can be suitably used for medical clothes and protective clothing.
- the waterproof / breathable material of the present invention can be suitably used as medical clothing or protective clothing by sewing into coveralls, upper and lower divided kappa, gowns and the like.
- a coverall-type protective clothing is preferable in order to prevent entry of contaminants.
- ⁇ -crystal forming ability 5 mg of a porous film was sampled in an aluminum pan and measured using a differential scanning calorimeter (Seiko Denshi Kogyo RDC220).
- the temperature is raised from room temperature to 260 ° C. at 10 ° C./min (first run) in a nitrogen atmosphere, held for 10 minutes, and then cooled to 40 ° C. at 10 ° C./min.
- the melting peak observed when the temperature is raised again (second run) at 10 ° C / min after holding for 5 minutes is the melting peak of 145 ° C to 157 ° C.
- the melting of the ⁇ crystal is the melting peak of the ⁇ crystal
- the melting peak of the ⁇ crystal is taken as the melting peak of the base
- ⁇ crystal forming ability (%) [ ⁇ H ⁇ / ( ⁇ H ⁇ + ⁇ H ⁇ )] ⁇ 100
- the ⁇ crystal fraction in the state of the sample can be calculated by calculating the abundance ratio of the ⁇ crystal in the same manner from the melting peak observed in the first run. The measurement was performed twice for each sample, and the average value was evaluated.
- MFR Melt flow rate
- Puncture strength Using a universal testing machine (Autograph AG-IS, manufactured by Shimadzu Corp.), the needle entry speed was 5 mm / min, and the others were measured at 23 ° C. according to JIS Z 1707: 1997. The load applied to the film when the sample broke was read and the value divided by the thickness (mm) of the sample before the test was defined as the puncture strength (N / mm). The measurement was performed 5 times for each sample, and the average value was evaluated.
- Thickness The thickness of the porous film was evaluated by the following measuring method. The thickness ( ⁇ m) was measured using a dial gauge thickness gauge (JIS B 7503: 1997, PURICOCK UPRIIGHT DIAL GAUGE (0.001 ⁇ 2 mm), No. 25, probe 10 mm ⁇ flat type, 50 gf load). The measurement was performed 10 times for each sample, and the average value was evaluated.
- the thickness of the nonwoven fabric and the waterproof / breathable material was evaluated by the following measuring method. Measured based on the method A described in JIS L 1913: 2010, paragraph 6.1.1. Ten test pieces having a size of 2500 mm 2 or more were collected from the sample, and a pressure of 0.5 kPa was applied to the upper circular horizontal plate of the thickness measuring device to adjust the zero point. Thereafter, using a thickness measuring instrument, the thickness was measured to 0.01 mm by applying a pressure of 0.5 kpa to the test piece for 10 seconds in a standard state. The average value of 10 test pieces was obtained.
- Area shrinkage (%) 100 ⁇ (L 1 (longitudinal) ⁇ L 1 (width)) / (L 0 (longitudinal) ⁇ L 0 (width)) ⁇ 100.
- B S AB B S : burst strength (kPa)
- Mass per unit area (weight per unit: g / m 2 ) It measured based on 6.2 of JIS L 1913: 2010. Five test pieces each having a size of 25 cm ⁇ 25 cm were taken from the sample, the weight was measured, and an average value was obtained. The average value was multiplied by 16 to obtain the mass per unit area (g / m 2 ).
- a test piece cut into a width of 50 mm and a length of 300 mm is subjected to a tensile test with a constant-speed extension type tensile tester for three samples in both the longitudinal and lateral directions of the sheet at a gripping interval of 200 mm and a tensile speed of 100 mm / min.
- the maximum strength when the sample is pulled until it breaks is taken as the tensile strength, and the average value in the longitudinal and transverse directions of the sheet is calculated.
- the lower of the longitudinal and transverse tensile strengths is the tensile strength of the fiber layer.
- the strength (N / 50 mm) was used.
- Adhesive area ratio When the pattern of the embossed pattern is the same pattern such as a cross shape, a round shape, an ellipse, etc., a sample with a sample size of 15 cm ⁇ 15 cm is used at a magnification of 50 times using a VHX2000 manufactured by Keyence. The sample was photographed, and the maximum area measurement and threshold value ⁇ 10 were set and analyzed, and the adhesion area ratio of the sample was calculated. The adhesion area ratio was measured for five samples, and the average value was calculated.
- the pattern of the embossed pattern is not symmetrical, and the pattern is not uniform, a sample with a sample size of 15 cm x 15 cm is photographed using a Keyence VHX2000 at a magnification of 25 times, and an automatic area measurement to extraction method (luminance) ), Analysis was performed with a threshold of ⁇ 20, and the adhesion area ratio of the sample was calculated. The adhesion area ratio was measured for five samples, and the average value was calculated.
- Method for Producing Protective Clothing The moisture permeable and waterproof materials of Examples and Comparative Examples were cut out according to the pattern. The cut-out portion of the moisture permeable / waterproof material was sewn with a sewing machine or ultrasonic wave to produce a protective suit. A seam tape having a width of 2 cm was attached to the sewing machine.
- the obtained polypropylene composition (A) is supplied to a uniaxial melt extruder, melt extruded at 220 ° C., foreign matter is removed with a 60 ⁇ m cut sintered filter, and the surface temperature is adjusted to 117 ° C. with a T-die.
- a cast sheet was obtained by discharging to a controlled cast drum.
- preheating was performed using a ceramic roll heated to 125 ° C., and the film was stretched 5 times in the longitudinal direction of the film at a stretching speed of 350,000% / min (3500 times / min).
- the end part was introduced into a tenter type stretching machine with a clip, preheated at 152 ° C. for 3 seconds, then 9.0 times at 150 ° C., at a stretching speed of 3,500% / min (35 times / min). Stretched.
- heat treatment was performed at 150 ° C. for 3 seconds while maintaining the distance between the clips after stretching, and further relaxation was performed at a relaxation rate of 15% at 164 ° C., and 5 ° C. at 164 ° C. while maintaining the distance between the clips after relaxation. Heat treatment was performed for 2 seconds.
- Example 2 In the stretching process of Example 1, preheating was performed using a ceramic roll heated to 125 ° C., and stretching was performed 5 times in the longitudinal direction of the film at a stretching rate of 400,000% / min (4000 times / min). Next, the end of the tenter-type stretching machine was introduced with a clip, preheated at 152 ° C. for 3 seconds, then 9.0 times at 150 ° C., at a stretching speed of 4,500% / minute (45 times / minute). Except for stretching, the same conditions as in Example 1 were applied to obtain a porous film having a thickness of 20 ⁇ m. The evaluation results are shown in Table 1.
- Example 3 A porous film having a thickness of 250 ⁇ m was obtained by applying the same conditions as in Example 1 except that the extrusion amount was adjusted so that the thickness of the porous film was 250 ⁇ m in the extrusion step of Example 1. The evaluation results are shown in Table 1.
- a porous film having a thickness of 20 ⁇ m was obtained by applying the same conditions as in Example 1 except that the obtained polypropylene composition (B) was used.
- the evaluation results are shown in Table 1.
- a porous film having a thickness of 20 ⁇ m was obtained by applying the same conditions as in Example 1 except that the obtained polypropylene composition (C) was used.
- the evaluation results are shown in Table 1.
- the raw material is supplied from the weighing hopper to the twin-screw extruder so that parts by mass are mixed at this ratio, melt kneaded at 303 ° C., discharged from the die into strands, and cooled and solidified in a 25 ° C. water tank. Then, it was cut into chips to obtain a polypropylene composition (D).
- the obtained polypropylene composition (D) is supplied to a uniaxial melt extruder, melt extruded at 220 ° C., foreign matter is removed with a 60 ⁇ m cut sintered filter, and the surface temperature is adjusted to 117 ° C. with a T-die.
- a cast sheet was obtained by discharging to a controlled cast drum.
- preheating was performed using a ceramic roll heated to 120 ° C., and the film was stretched 5.2 times in the longitudinal direction of the film at a stretching speed of 150,000% / min (1500 times / min).
- the end part is introduced into a tenter type stretching machine with a clip, preheated at 152 ° C. for 3 seconds, then 5.5 times at 150 ° C., at a stretching speed of 1,200% / minute (12 times / minute). Stretched.
- the distance between the clips in the width direction at the entrance of the tenter was 150 mm.
- heat treatment was performed at 150 ° C. for 3 seconds while maintaining the distance between the clips after stretching, and further relaxation was performed at 164 ° C. with a relaxation rate of 15%. Heat treatment was performed for 2 seconds.
- the polypropylene composition (A) was supplied to a uniaxial melt extruder, melt extruded at 220 ° C., foreign matter was removed with a 60 ⁇ m cut sintered filter, and the surface temperature was controlled to 117 ° C. with a T-die.
- the cast sheet was obtained by discharging to a drum.
- preheating was performed using a ceramic roll heated to 125 ° C., and the film was stretched 5 times in the longitudinal direction of the film at a stretching speed of 150,000% / min (1500 times / min).
- the end part was introduced into a tenter type stretching machine with a clip, preheated at 152 ° C. for 3 seconds, then 9.0 times at 150 ° C., at a stretching speed of 1,200% / minute (12 times / minute). Stretched.
- heat treatment was performed at 150 ° C. for 3 seconds while maintaining the distance between the clips after stretching, and further relaxation was performed at a relaxation rate of 15% at 164 ° C., and 5 ° C. at 164 ° C. while maintaining the distance between the clips after relaxation. Heat treatment was performed for 2 seconds.
- ⁇ Spunbond 1> A spunbond nonwoven fabric made of polypropylene (40 g / m 2 in basis weight, tensile strength: 57.6 N / 50 mm, burst strength: 500 kPa, wear strength: 4.5 grade).
- Example 101 Using a hot press roll with a mesh pattern that was adjusted so that the handle with the surface coated with a fluororesin could not be seen, the polypropylene nonwoven fabric (spunbond 1) with a basis weight of 40 g / m 2 and the porous film of Example 1
- the handle roll temperature is 145 ° C.
- the receiving roll temperature is 145
- Adhesion processing was performed at 0 ° C., a roll pressure of 2 MPa, and a processing speed of 5 m / min.
- the moisture permeable / waterproof material was cut out according to the pattern, and the sewn portion of the cut out moisture permeable / waterproof material was sewn with a sewing machine to obtain protective clothing.
- Example 102 Adhesion processing was performed in the same manner as in Example 101 except that the porous film of Example 1 used in Example 101 was adhered as the porous film of Example 2, and a waterproof / breathable material was obtained. The moisture permeable and waterproof material was sewn in the same manner as in Example 101 to obtain protective clothing.
- Example 103 Adhesion processing was performed in the same manner as in Example 101 except that the porous film of Example 1 used in Example 101 was adhered as the porous film of Example 4 to obtain a waterproof / moisture permeable material. The moisture permeable and waterproof material was sewn in the same manner as in Example 101 to obtain protective clothing.
- Example 104 Adhesion processing was performed in the same manner as in Example 101 except that the porous film of Example 1 used in Example 101 was adhered as the porous film of Example 5 to obtain a waterproof / moisture permeable material. The moisture permeable and waterproof material was sewn in the same manner as in Example 101 to obtain protective clothing.
- Example 105 Using an ultrasonic bonding machine having a lattice pattern embossing roll (8400 made by Bobson) (lattice pattern), a polypropylene nonwoven fabric (spunbond 1) having a basis weight of 40 g / m 2 , the porous film of Example 1, and the spunbond 1 The three layers were bonded to each other so as to form a cross pattern having a bonding area of 10% at a frequency of 20,000 Hz and a pressure of 0.03 MPa, to obtain a waterproof / moisture permeable material. The moisture permeable / waterproof material was cut out according to the pattern, and the sewn portion of the cut out moisture permeable / waterproof material was sewn with a sewing machine to obtain protective clothing.
- a lattice pattern embossing roll 8400 made by Bobson
- Example 106 A waterproof / breathable material was obtained in the same manner as in Example 105 except that the porous film of Example 2 was used instead of the porous film of Example 1 used in Example 105. The moisture permeable and waterproof material was sewn in the same manner as in Example 105 to obtain protective clothing.
- Example 107 A waterproof / breathable material was obtained in the same manner as in Example 105 except that the porous film of Example 4 was used instead of the porous film of Example 1 used in Example 105. The moisture permeable and waterproof material was sewn in the same manner as in Example 105 to obtain protective clothing.
- Example 108 A waterproof / breathable material was obtained in the same manner as in Example 105 except that the porous film of Example 5 was used instead of the porous film of Example 1 used in Example 105. The moisture permeable and waterproof material was sewn in the same manner as in Example 105 to obtain protective clothing.
- Example 109 A waterproof / moisture permeable material is obtained in the same manner as in Example 101 except that the spunbond 1 and the porous film of Example 1 have a two-layer structure, the handle roll temperature is 145 ° C., the receiving roll is at room temperature, and the roll pressure is 2 MPa. It was. The moisture permeable and waterproof material was sewn in the same manner as in Example 101 to obtain protective clothing.
- Example 110 A waterproof / moisture permeable material was obtained in the same manner as in Example 109 except that the porous film of Example 1 used in Example 109 was adhered as the porous film of Example 2. The moisture permeable and waterproof material was sewn in the same manner as in Example 109 to obtain protective clothing.
- Example 111 A waterproof / moisture permeable material was obtained in the same manner as in Example 109 except that the porous film of Example 1 used in Example 109 was bonded as the porous film of Example 4. The moisture permeable and waterproof material was sewn in the same manner as in Example 109 to obtain protective clothing.
- Example 112 A waterproofing / moisture permeable material was obtained in the same manner as in Example 109 except that the porous film of Example 1 used in Example 109 was adhered as the porous film of Example 5. The moisture permeable and waterproof material was sewn in the same manner as in Example 109 to obtain protective clothing.
- Example 113 In the same manner as in Example 101, a waterproof / moisture permeable material having a bonding area of 5% by heat bonding was obtained by superposing three layers of spunbond 1, the porous film of example 1, and spunbond 1. The moisture permeable / waterproof material was cut out according to the pattern, and the sewn portion of the cut out moisture permeable / waterproof material was sewn with a sewing machine to obtain protective clothing.
- Example 114 A waterproof / breathable material was obtained in the same manner as in Example 101 except that the adhesion area was 25%. The moisture permeable and waterproof material was sewn in the same manner as in Example 101 to obtain protective clothing.
- Example 115 A waterproof / breathable material was obtained in the same manner as in Example 101 except that the adhesion area was 40%. The moisture permeable and waterproof material was sewn in the same manner as in Example 101 to obtain protective clothing.
- Example 116 A waterproof / breathable material was obtained in the same manner as in Example 101 except that the adhesion area was 50%. The moisture permeable and waterproof material was sewn in the same manner as in Example 101 to obtain protective clothing.
- Example 117 Protective clothing was obtained in the same manner as in Example 101 except that the sewing method of the protective clothing was changed to ultrasonic sewing.
- Example 118 Protective clothing was obtained in the same manner as in Example 102 except that the sewing method of the protective clothing was changed to ultrasonic sewing.
- Example 117 Protective clothing was obtained in the same manner as in Example 103 except that the sewing method of the protective clothing was changed to ultrasonic sewing.
- Example 102 A waterproof / moisture permeable material was obtained in the same manner as in Example 101 except that the porous film of Example 1 of Example 101 was changed to the porous film of Comparative Example 1. The moisture permeable and waterproof material was sewn in the same manner as in Example 101 to obtain protective clothing.
- Example 103 A waterproof / moisture permeable material was obtained in the same manner as in Example 101 except that the porous film of Example 1 of Example 101 was changed to the porous film of Comparative Example 2. The moisture permeable and waterproof material was sewn in the same manner as in Example 101 to obtain protective clothing.
- Example 104 A waterproof / moisture permeable material was obtained in the same manner as in Example 101 except that the porous film of Example 1 of Example 101 was changed to the porous film of Comparative Example 3. The moisture permeable and waterproof material was sewn in the same manner as in Example 101 to obtain protective clothing.
- the comparative example was insufficient as a waterproof / moisture permeable material and protective clothing because the moisture permeability, puncture strength, and barrier properties were insufficient.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Textile Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Materials Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Description
(1)透湿度が150g/m2・h以上であり、突刺強度が100N/mm以上であり、かつ血液バリア性がクラス4以上である多孔性フィルム、
(2)透湿度が150g/m2・h以上であり、突刺強度が100N/mm以上であり、かつウィルスバリア性がクラス3以上である多孔性フィルム、
(3)透湿度が150g/m2・h以上であり、突刺強度が100N/mm以上であり、血液バリア性がクラス4以上、かつウィルスバリア性がクラス3以上である多孔性フィルム。
(4)130℃で1時間処理後の面積熱収縮率が10%以下である、(1)~(3)のいずれかの多孔性フィルム、
(5)ポリオレフィン樹脂からなる、(1)~(4)のいずれかの多孔性フィルム、
(6)ポリオレフィン樹脂がポリプロピレンである、(5)の多孔性フィルム、
(7)(1)~(6)のいずれかの多孔性フィルムを用いた医療用生地の基材、
(8)少なくとも繊維層と(1)~(6)のいずれかの多孔性フィルムとを積層した防水・透湿材料であって、前記防水・透湿材料は前記防水・透湿材料を構成する各層が隣り合う層間で接着されてなり、前記防水・透湿材料の単位面積あたり、その50%以下の面積において、隣り合う層が接着されている防水・透湿材料、
(9)前記繊維層と前記多孔性フィルムを構成する素材の融点差が40℃以下である(8)の防水・透湿材料、
(10)耐水圧が30kPa以上である(8)または(9)の防水・透湿材料、
(11)(8)~(10)のいずれかの防水・透湿材料を用いた医療用衣服、
(12)(8)~(10)のいずれかの防水・透湿材料を用いた防護服、
(13)(8)~(10)のいずれかに記載の防水・透湿材料の製造方法であって、前記防水・透湿材料を構成する隣り合う層を重ね合わせる工程と、重ね合わせた隣り合う層の接着予定部位に熱処理とを施す工程を有する防水・透湿材料の製造方法。
<多孔性フィルム>
本発明の多孔性フィルムは、フィルムの両表面を貫通し、透気性を有する微細な貫通孔を多数有しているフィルムである。多孔性フィルムを構成する樹脂は、ポリオレフィン樹脂、ポリカーボネート、ポリアミド、ポリイミド、ポリアミドイミド、芳香族ポリアミド、フッ素系樹脂などいずれでも構わない。中でも耐熱性、成形性、生産コストの低減、耐薬品性、耐酸化・還元性などの観点からポリオレフィン樹脂が望ましい。
本発明の防水・透湿材料は、少なくとも繊維層と前記の多孔性フィルムとを積層した防水・透湿材料であって、前記防水・透湿材料は前記防水・透湿材料を構成する各層が隣り合う層間で接着されてなり、前記防水・透湿材料の単位面積あたり、その50%以下の面積において、隣り合う層が接着されている。本発明において、少なくとも繊維層と多孔性フィルムとを積層したとは、多孔性フィルムと繊維層とが合わせて2層以上となっていることをいう。なお、積層構成については後述する。
本発明の防水・透湿材料における多孔性フィルムは前述のものが用いられる。
続いて、本発明の防水・透湿材料における繊維層について述べる。
本発明の防水・透湿材料の透湿性は、優れた着用性を担保する観点から、その評価尺度である透湿度が150g/m2・h以上であり、好ましくは200g/m2・h以上、さらに好ましくは300g/m2・h以上である。一方、上限については特に限定はされないが、バリア性をより優れたものとする観点から1000g/m2・h以下が好ましい。なお、透湿度はJIS L 1099:2012に記載のA-1法で評価を行う。
(i)衣服の外側となる面に多孔性フィルム、衣服の内側となる面に繊維層を持つ2層構成
(ii)衣服の外側となる面に繊維層、衣服の内側となる面に多孔性フィルムを持つ2層構成
(iii)繊維層、多孔性フィルムおよび繊維層の順となり、多孔性フィルムを挟み込む3層構成
(iv)摩耗強さの高い繊維層と引張強さおよび破裂強さの高い繊維層との2層を重ねあわせ、上記の2つの繊維層を重ね合わせた繊維積層体が多孔性フィルムを挟み込む5層構成
(v)繊維層、特性の異なる多孔性フィルムを2層、さらに繊維層をこの順に重ねた4層構成
中でも、(iii)繊維層、多孔性フィルムおよび繊維層の順となり、多孔性フィルムを挟み込む3層構成が好ましい。上記の3層構成とすることで、多孔性フィルムを繊維層により挟み込むことで、多孔性フィルムが傷つきバリア性が失われにくくする効果を有する。
<防水・透湿材料の製造方法>
本発明の防水・透湿材料の製造方法は、防水・透湿材料を構成する隣り合う層を重ね合わせる工程、重ね合わせた隣り合う層の接着予定部位に熱処理を施す工程を有する製造方法である。
多孔性フィルム5mgを試料としてアルミニウム製のパンに採取し、示差走査熱量計(セイコー電子工業製RDC220)を用いて測定した。まず、窒素雰囲気下で室温から260℃まで10℃/分で昇温(ファーストラン)し、10分間保持した後、40℃まで10℃/分で冷却する。5分保持後、再度10℃/分で昇温(セカンドラン)した際に観測される融解ピークについて、145~157℃の温度領域にピークが存在する融解をβ晶の融解ピーク、158℃以上にピークが観察される融解をα晶の融解ピークとして、高温側の平坦部を基準に引いたベースラインとピークに囲まれる領域の面積から、それぞれの融解熱量を求め、α晶の融解熱量をΔHα、β晶の融解熱量をΔHβとしたとき、以下の式で計算される値をβ晶形成能とする。なお、融解熱量の校正はインジウムを用いて行った。
なお、ファーストランで観察される融解ピークから同様にβ晶の存在比率を算出することで、その試料の状態でのβ晶分率を算出することができる。測定は各サンプル2回ずつ行い、その平均値で評価を行った。
JIS T 8060:2007に記載の手順Dに基づき、血液バリア性を測定し、クラス1~6で評価した。
JIS T 8061:2010に記載の手順D1に基づき、ウィルスバリア性を測定し、クラス1~6で評価した。
JIS L 1099:2012に記載のA-1法(塩化カルシウム法)に基づき、透湿度を測定し、単位:g/m2・hで評価した。
ポリプロピレン樹脂のMFRは、JIS K 7210:1995に記載の条件M(230℃、2.16kg)に基づき、測定する。ポリエチレン樹脂は、JIS K 7210:1995に記載の条件D(190℃、2.16kg)に基づき、測定する。
万能試験機(島津製作所製オートグラフAG-IS)を用いて、針進入速度を5mm/分とし、それ以外はJIS Z 1707:1997に準じて23℃で測定した。サンプルが破膜したときにフィルムにかかっていた荷重を読み取り、試験前の試料の厚み(mm)で除した値を突刺強度(N/mm)とした。測定は各サンプル5回ずつ行い、その平均値で評価を行った。
多孔性フィルムの厚みは以下の測定方法で評価した。ダイヤルゲージ式厚み計(JIS B 7503:1997、PEACOCK製UPRIGHT DIAL GAUGE(0.001×2mm)、No.25、測定子10mmφ平型、50gf荷重)を用いて、厚み(μm)を測定した。測定は各サンプル10回ずつ行い、その平均値で評価を行った。
多孔性フィルムを長手方向150mm×幅方向150mmの正方形に切り出しサンプルとした。各辺のサンプルの中央部に標線を描き、加熱前の標線間距離L0(長手)、L0(幅)を測定した。サンプルを紙ではさみ、130℃に加熱した熱風オーブン内に吊り下げて60分間静置し加熱処理を行った。熱処理後、放冷したあと、加熱後の標線間距離L1(長手)、L1(幅)を測定し、以下の式で計算される値を熱収縮率とした。測定は各サンプルにつき5回実施して平均値を面積熱収縮率として表1に記した。
(株)島津製作所製示差走査型熱量計DSC-60型を用い、試料2mg、窒素中、昇温速度10℃/分、50~300℃の温度まで昇温させたときの最大融解吸熱ピーク温度を融点(Tm)とした。測定は各サンプル2回ずつ行い、その平均値で評価を行った。
JIS L 1096:1999の8.16.1項に記載のA法に基づき測定した。15cm×15cmの試験片を5枚採取し、ミューレン形破裂試験機を用い、試験片を上にして、しわ及びたるみを生じないように均一な張力を加えてクランプでつかみ圧力を加えてゴム膜が試験片を突き破る強さ及び破断時のゴム膜だけの強さを測り、次の式によって破裂強さを求め、その平均値を算出した。
BS :破裂強さ(kPa)
A :ゴム膜が試験片を突き破る強さ
B :破断時のゴム膜だけの強さ
(11)単位面積当たりの質量(目付:g/m2)
JIS L 1913:2010の6.2項に基づいて測定した。試料から25cm×25cmの大きさの試験片を5枚採取し、その重さを測定し、平均値を求めた。その平均値を16倍し、単位面積当たりの質量(g/m2)とした。
JIS L 1913:2010の6.3.1項に基づき測定した。幅50mm 、長さ 300mmに切り出した試験片を、つかみ間隔200mm 、引張速度100mm/分の条件でシート縦方向、横方向とも3個のサンプルについて定速伸長型引張試験機にて引張試験を行い、サンプルが破断するまで引っ張ったときの最大強力を引張強さとし、シート縦方向、横方向それぞれの平均値について算出し、縦方向、横方向の引張強さのうち、低い方を繊維層の引張強さ(N/50mm)とした。
JIS L 1913:2010の6.6.2項に基づき測定した。直径13cmの円形試験片を5枚採取し、各試験片の中心に直径約6mmの孔を開け、テーバー形摩耗試験機を用い、試験片の表面を上にして荷重2.45N、摩耗輪(CS-10)を用い、約70min-1で100回、回転摩擦し、外観を限度写真(JIS L1913:2010の図14)により級判定した。
JIS L 1092:2009の7.1.1項に記載のB法に基づき測定した。試料から約150mm×150mmの試験片を5枚採取し、耐水度試験装置の表側に水があたるよう取り付け、シリンダに水を入れ、ピストンハンドルを回して1分間に100kPaの割合で水圧を加えて、試験片の裏側に3か所から水が出たときまたは防水・透湿材料が破裂した際の水圧(kPa)を測定し、5回の平均値を耐水圧とした。
夏場の外気温を想定した35℃、50%Rhに設定した恒温恒湿室に、被験者がシャツ1枚、作業ズボン1枚の上から作製した化学防護服を着用し入室した。被験者は、胸の中心付近に熱電対をシャツの上から貼り付け、入室後の防護服内の温度を熱電対にて測定した。これを3人の被験者に対して実施した。3人の被験者のデータをそれぞれ比較例101の防護服と比較して、30分後の防護服内の湿度が10%以上低いものをgood、平均湿度差が10%未満のものをbadと評価した。
エンボスパターンの柄が十字型や丸型、楕円等のように同一のパターンの場合には、試料サイズ15cm×15cmの試料を、キーエンス製VHX2000を用い、倍率50倍にて撮影し、最大面積計測、しきい値±10の範囲内に設定して解析し、試料の接着面積率を算出した。接着面積率は、5枚の試料について測定し、その平均値を算出した。
防護服の作製方法
実施例および比較例の透湿・防水材料を、型紙に合わせて切り出した。切り出した透湿・防水材料の縫製部分をミシンまたは超音波にて縫製し、防護服を作製した。ミシン縫いした箇所には、2cm幅のシームテープを張り付けた。
ポリプロピレン樹脂として、MFR=4.0g/10分のプライムポリマー(株)製ホモポリプロピレンを96.5質量部、MFR1,000g/10分のプライムポリマー(株)製ホモポリプロピレンS10CLを3質量部、β晶核剤であるN,N’-ジシクロヘキシル-2,6-ナフタレンジカルボキシアミド(新日本理化(株)製、NU-100)を0.3質量部、さらに酸化防止剤であるBASF製“IRGANOX”(登録商標)1010、“IRGAFOS”(登録商標)168を各々0.1質量部ずつがこの比率で混合されるように計量ホッパーから二軸押出機に原料供給し、303℃で溶融混練を行い、ストランド状にダイから吐出して、25℃の水槽にて冷却固化し、チップ状にカットしてポリプロピレン組成物(A)を得た。
実施例1の延伸工程において125℃に加熱したセラミックロールを用いて予熱を行いフィルムの長手方向に5倍に、延伸速度400,000%/分(4000倍/分)で延伸を行った。次にテンター式延伸機に端部をクリップで把持させて導入し、152℃で3秒間予熱後、150℃で9.0倍に、延伸速度4,500%/分(45倍/分)で延伸した以外は実施例1と同じ条件を適用して、厚み20μmの多孔性フィルムを得た。評価結果を表1に示す。
実施例1の押出工程において多孔性フィルムの厚みが250μmになるように押出量を調整した以外は実施例1と同じ条件を適用して、厚み250μmの多孔性フィルムを得た。評価結果を表1に示す。
ポリプロピレン樹脂として、MFR=4.0g/10分のプライムポリマー(株)製ホモポリプロピレンを94.5質量部、MFR1,000g/10分のプライムポリマー(株)製ホモポリプロピレンS10CLを5質量部、β晶核剤であるN,N’-ジシクロヘキシル-2,6-ナフタレンジカルボキシアミド(新日本理化(株)製、NU-100)を0.3質量部、さらに酸化防止剤であるBASF製“IRGANOX”(登録商標)1010、“IRGAFOS”(登録商標)168を各々0.1質量部ずつがこの比率で混合されるように計量ホッパーから二軸押出機に原料供給し、303℃で溶融混練を行い、ストランド状にダイから吐出して、25℃の水槽にて冷却固化し、チップ状にカットしてポリプロピレン組成物(B)を得た。
ポリプロピレン樹脂として、MFR=4.0g/10分のプライムポリマー(株)製ホモポリプロピレンを98.5質量部、MFR1,000g/10分のプライムポリマー(株)製ホモポリプロピレンS10CLを1質量部、β晶核剤であるN,N’-ジシクロヘキシル-2,6-ナフタレンジカルボキシアミド(新日本理化(株)製、NU-100)を0.3質量部、さらに酸化防止剤であるBASF製“IRGANOX”(登録商標)1010、“IRGAFOS”(登録商標)168を各々0.1質量部ずつがこの比率で混合されるように計量ホッパーから二軸押出機に原料供給し、303℃で溶融混練を行い、ストランド状にダイから吐出して、25℃の水槽にて冷却固化し、チップ状にカットしてポリプロピレン組成物(C)を得た。
ポリプロピレン樹脂として、MFR=7.5g/10分の住友化学(株)製ホモポリプロピレンFLX80E4を99.5質量部、β晶核剤であるN,N’-ジシクロヘキシル-2,6-ナフタレンジカルボキシアミド(新日本理化(株)製、NU-100)を0.3質量部、さらに酸化防止剤であるBASF製“IRGANOX”(登録商標)1010、“IRGAFOS”(登録商標)168を各々0.1質量部ずつがこの比率で混合されるように計量ホッパーから二軸押出機に原料供給し、303℃で溶融混練を行い、ストランド状にダイから吐出して、25℃の水槽にて冷却固化し、チップ状にカットしてポリプロピレン組成物(D)を得た。
ポリプロピレン組成物(A)を単軸の溶融押出機に供給し、220℃で溶融押出を行い、60μmカットの焼結フィルターで異物を除去後、Tダイにて117℃に表面温度を制御したキャストドラムに吐出してキャストシートを得た。ついで、125℃に加熱したセラミックロールを用いて予熱を行いフィルムの長手方向に5倍に、延伸速度150,000%/分(1500倍/分)で延伸を行った。次にテンター式延伸機に端部をクリップで把持させて導入し、152℃で3秒間予熱後、150℃で9.0倍に、延伸速度1,200%/分(12倍/分)で延伸した。
高密度ポリエチレン粉末(“ハイゼックス”(登録商標)340M、三井化学(株)製、)40質量部と、ポリエチレンワックス(“ハイワックス” (登録商標)110P、三井化学(株)製)30質量部と、炭酸カルシウム(商品名:“スターピゴット” (登録商標)15A、白石カルシウム(株)製、平均粒子径0.15μm)30質量部を混合した組成物を二軸押出機に供給して200℃で溶融混合した後、Tダイ口金内を通してシート状に押出成形し、表面温度30℃のキャストドラム上に密着させ、非ドラム面側より20℃の冷風を吹き付けて未延伸フィルムを作製した。次に、該未延伸フィルムを125℃に加熱保持されたオーブンに導いて予熱後、長手方向に3倍延伸し20℃のロールで冷却した。続いて、長手方向に延伸したフィルムの両端をクリップで把持しながらテンターに導き、120℃に加熱した雰囲気中で5倍延伸して(面積倍率:縦延伸倍率×横延伸倍率=15倍)、厚さ20μmの多孔性ポリエチレンフィルムを得た。評価結果を表1に示す。
ポリプロピレン製スパンボンド不織布(目付40g/m2、引張強力:57.6N/50mm、破裂強さ:500kPa、摩耗強さ:4.5級)。
表面をフッ素樹脂にてコーティングした柄癖が見えないように調整した網目柄の熱プレスロールを用い、目付40g/m2のポリプロピレン製不織布(スパンボンド1)、と実施例1の多孔性フィルムをスパンボンド1、実施例1の多孔性フィルム、スパンボンド1の構成にて、接着部分以外はロール面が布帛に触れない柄高さ3mmのロールを用い、柄ロール温度145℃、受けロール温度145℃、ロール圧2MPa、加工速度5m/分で、接着加工を行い、接着面積が10%の防水・透湿材料を得た。本透湿・防水材料を、型紙に合わせて切り出し、切り出した透湿・防水材料の縫製部分をミシンにて縫製し、防護服を得た。
実施例101に用いた実施例1の多孔性フィルムを実施例2の多孔性フィルムとして接着した以外は、実施例101と同様にして接着加工を行い、防水・透湿材料を得た。本透湿・防水材料を、実施例101と同様にミシン縫製し、防護服を得た。
(実施例103)
実施例101に用いた実施例1の多孔性フィルムを実施例4の多孔性フィルムとして接着した以外は、実施例101と同様にして接着加工を行い、防水・透湿材料を得た。本透湿・防水材料を、実施例101と同様にミシン縫製し、防護服を得た。
実施例101に用いた実施例1の多孔性フィルムを実施例5の多孔性フィルムとして接着した以外は、実施例101と同様にして接着加工を行い、防水・透湿材料を得た。本透湿・防水材料を、実施例101と同様にミシン縫製し、防護服を得た。
格子柄のエンボスロールを有する超音波接着機(ボブソン製8400)(格子柄)を用い、目付40g/m2のポリプロピレン製不織布(スパンボンド1)と実施例1の多孔性フィルムとスパンボンド1の3層を、振動数2万Hz、圧力0.03MPaにて接着面積が10%のクロス柄となるよう相互の層に接着加工を行い、防水・透湿材料を得た。本透湿・防水材料を、型紙に合わせて切り出し、切り出した透湿・防水材料の縫製部分をミシンにて縫製し、防護服を得た。
実施例105に用いた実施例1の多孔性フィルムの代わりに、実施例2の多孔性フィルムを用いた以外は、実施例105と同様にして防水・透湿材料を得た。本透湿・防水材料を、実施例105と同様にミシン縫製し、防護服を得た。
実施例105に用いた実施例1の多孔性フィルムの代わりに、実施例4の多孔性フィルムを用いた以外は、実施例105と同様にして防水・透湿材料を得た。本透湿・防水材料を、実施例105と同様にミシン縫製し、防護服を得た。
実施例105に用いた実施例1の多孔性フィルムの代わりに、実施例5の多孔性フィルムを用いた以外は、実施例105と同様にして防水・透湿材料を得た。本透湿・防水材料を、実施例105と同様にミシン縫製し、防護服を得た。
スパンボンド1、実施例1の多孔性フィルムの2層構成とし、柄ロール温度145℃、受けロールが常温、ロール圧2MPaとした以外は、実施例101と同様にして防水・透湿材料を得た。本透湿・防水材料を、実施例101と同様にミシン縫製し、防護服を得た。
実施例109で用いた実施例1の多孔性フィルムを実施例2の多孔性フィルムとして接着した以外は、実施例109と同様にして防水・透湿材料を得た。本透湿・防水材料を、実施例109と同様にミシン縫製し、防護服を得た。
実施例109で用いた実施例1の多孔性フィルムを実施例4の多孔性フィルムとして接着した以外は、実施例109と同様にして融着加工を行い防水・透湿材料を得た。本透湿・防水材料を、実施例109と同様にミシン縫製し、防護服を得た。
実施例109で用いた実施例1の多孔性フィルムを実施例5の多孔性フィルムとして接着した以外は、実施例109と同様にして接着加工を行い防水・透湿材料を得た。本透湿・防水材料を、実施例109と同様にミシン縫製し、防護服を得た。
実施例101と同様に、スパンボンド1、実施例1の多孔性フィルム、スパンボンド1の3層の重ね合わせにて、熱接着加工による接着面積が5%の防水・透湿材料を得た。本透湿・防水材料を、型紙に合わせて切り出し、切り出した透湿・防水材料の縫製部分をミシンにて縫製し、防護服を得た。
接着面積が25%とした以外は、実施例101と同様にして防水・透湿材料を得た。本透湿・防水材料を、実施例101と同様にミシン縫製し、防護服を得た。
接着面積が40%とした以外は、実施例101と同様にして防水・透湿材料を得た。本透湿・防水材料を、実施例101と同様にミシン縫製し、防護服を得た。
接着面積が50%とした以外は、実施例101と同様にして防水・透湿材料を得た。本透湿・防水材料を、実施例101と同様にミシン縫製し、防護服を得た。
防護服の縫製方法を超音波縫製とした以外は、実施例101と同様にして、防護服を得た。
防護服の縫製方法を超音波縫製とした以外は、実施例102と同様にして、防護服を得た。
防護服の縫製方法を超音波縫製とした以外は、実施例103と同様にして、防護服を得た。
市販の旭・デュポンフラッシュスパンプロダクツ(株)製のタイベックソフトウェアIII型を使用した。
実施例101の実施例1の多孔性フィルムを比較例1の多孔性フィルムとした以外は、実施例101同様にして防水・透湿材料を得た。本透湿・防水材料を、実施例101と同様にミシン縫製し、防護服を得た。
実施例101の実施例1の多孔性フィルムを比較例2の多孔性フィルムとした以外は、実施例101と同様にして防水・透湿材料を得た。本透湿・防水材料を、実施例101と同様にミシン縫製し、防護服を得た。
実施例101の実施例1の多孔性フィルムを比較例3の多孔性フィルムとした以外は、実施例101と同様にして防水・透湿材料を得た。本透湿・防水材料を、実施例101と同様にミシン縫製し、防護服を得た。
接着面積が70%とした以外は、実施例101と同様にして防水・透湿材料を得た。本透湿・防水材料を、実施例101と同様にミシン縫製し、防護服を得た。
熱プレスロールを用いた接着法を用いた。実施例101と同じスパンボンド1、実施例1の多孔性フィルム、スパンボンド1の構成にて、柄高さ0.3mmのロールを用い、ロール温度150℃、ロール圧3MPa、加工速度2m/分で、接着加工を行い、防水・透湿材料を得た。本透湿・防水材料を、型紙に合わせて切り出し、切り出した透湿・防水材料の縫製部分をミシンにて縫製し、防護服を得た。
Claims (15)
- 透湿度が150g/m2・h以上であり、突刺強度が100N/mm以上であり、かつ血液バリア性がクラス4以上である多孔性フィルム。
- 透湿度が150g/m2・h以上であり、突刺強度が100N/mm以上であり、かつウィルスバリア性がクラス3以上である多孔性フィルム。
- 透湿度が150g/m2・h以上であり、突刺強度が100N/mm以上であり、血液バリア性がクラス4以上、かつウィルスバリア性がクラス3以上である多孔性フィルム。
- 130℃で1時間処理後の面積熱収縮率が10%以下である、請求項1~3のいずれかに記載の多孔性フィルム。
- ポリオレフィン樹脂からなる、請求項1~4のいずれかに記載の多孔性フィルム。
- 前記ポリオレフィン樹脂がポリプロピレンである、請求項5に記載の多孔性フィルム。
- 請求項1~6のいずれかに記載の前記多孔性フィルムを用いた医療用生地の基材。
- 少なくとも繊維層と請求項1~6のいずれかに記載の多孔性フィルムとを積層した防水・透湿材料であって、前記防水・透湿材料は前記防水・透湿材料を構成する各層が隣り合う層間で接着されてなり、前記防水・透湿材料の単位面積あたり、その50%以下の面積において、隣り合う層が接着されている防水・透湿材料。
- 透湿度が150g/m2・h以上である請求項8に記載の防水・透湿材料。
- ウィルスバリア性がクラス3以上である請求項8または9に記載の防水・透湿材料。
- 前記繊維層と前記多孔性フィルムを構成する素材の融点差が40℃以下である請求項8~10のいずれかに記載の防水・透湿材料。
- 耐水圧が30kPa以上である請求項8~11のいずれかに記載の防水・透湿材料。
- 請求項8~12のいずれかに記載の防水・透湿材料を用いた医療用衣服。
- 請求項8~12いずれかに記載の防水・透湿材料を用いた防護服。
- 請求項8~12のいずれかに記載の防水・透湿材料の製造方法であって、前記防水・透湿材料を構成する隣り合う層を重ね合わせる工程と、重ね合わせた隣り合う層の接着予定部位に熱処理を施す工程とを有する防水・透湿材料の製造方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2016126406A RU2674199C1 (ru) | 2013-12-03 | 2014-12-01 | Пористая пленка, водонепроницаемый и влагопроницаемый материал, а также использующие их медицинская одежда и защитная одежда |
EP14866985.6A EP3078704A4 (en) | 2013-12-03 | 2014-12-01 | Porous film, water-resistant and moisture-transmitting material, and medical garment and protective garment using water-resistant and moisture-transmitting material |
JP2015506005A JP6090428B2 (ja) | 2013-12-03 | 2014-12-01 | 防水・透湿材料およびそれを用いた医療用衣服ならびに防護服 |
KR1020167016944A KR20160095002A (ko) | 2013-12-03 | 2014-12-01 | 다공성 필름, 방수·투습 재료 및 그것을 사용한 의료용 의복 및 방호복 |
US15/101,609 US20160318281A1 (en) | 2013-12-03 | 2014-12-01 | Porous film, waterproof and moisture-permeable material, and medical clothing and protective clothing that use the same |
CN201480066183.5A CN105764967B (zh) | 2013-12-03 | 2014-12-01 | 多孔性膜、防水透湿材料和使用其的医疗用衣服以及防护服 |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013-249827 | 2013-12-03 | ||
JP2013249827 | 2013-12-03 | ||
JP2014-013317 | 2014-01-28 | ||
JP2014013317 | 2014-01-28 | ||
JP2014-098284 | 2014-05-12 | ||
JP2014098284 | 2014-05-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015083665A1 true WO2015083665A1 (ja) | 2015-06-11 |
Family
ID=53273427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/081743 WO2015083665A1 (ja) | 2013-12-03 | 2014-12-01 | 多孔性フィルム、防水・透湿材料およびそれを用いた医療用衣服ならびに防護服 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20160318281A1 (ja) |
EP (1) | EP3078704A4 (ja) |
JP (1) | JP6090428B2 (ja) |
KR (1) | KR20160095002A (ja) |
CN (1) | CN105764967B (ja) |
RU (1) | RU2674199C1 (ja) |
WO (1) | WO2015083665A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017035826A (ja) * | 2015-08-10 | 2017-02-16 | ユニチカトレーディング株式会社 | 積層布帛、シームテープ及びリペアパッチ、並びに医療用外衣 |
JP2017105032A (ja) * | 2015-12-08 | 2017-06-15 | 三菱樹脂株式会社 | 透湿性積層体 |
JP2017105031A (ja) * | 2015-12-08 | 2017-06-15 | 三菱樹脂株式会社 | 透湿性積層体 |
WO2017119355A1 (ja) * | 2016-01-06 | 2017-07-13 | 東レ株式会社 | 防護服 |
JP2019064262A (ja) * | 2017-10-03 | 2019-04-25 | 儀城企業有限公司 | 複合型紡織製品 |
EP3652246A4 (en) * | 2017-07-13 | 2020-11-25 | Enzpire Industry Co., Ltd. | STERILIZABLE MEDICAL PACKAGING WITH LIVE PORES |
WO2021216389A1 (en) * | 2020-04-20 | 2021-10-28 | Celgard, Llc | Seam tape and related methods and products |
JP2022544869A (ja) * | 2019-12-18 | 2022-10-21 | 山東君泰医用防護用品科技有限公司 | 医療用複合材料及びその製造プロセス |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107662384B (zh) * | 2016-07-27 | 2020-06-16 | 佛山金万达科技股份有限公司 | 一种透汽隔病毒面料接缝处的液体不能渗透的缝合方法 |
WO2020218590A1 (ja) * | 2019-04-26 | 2020-10-29 | 日東電工株式会社 | 変換素子部材とこれを備える変換素子モジュール及び電子機器 |
EP4029394A4 (en) * | 2019-09-11 | 2023-09-13 | Toray Industries, Inc. | PERSONAL PROTECTIVE SUIT |
TWI741403B (zh) * | 2019-11-04 | 2021-10-01 | 黃振正 | 可易回收薄層物 |
KR102235485B1 (ko) * | 2020-06-17 | 2021-04-05 | (주)이지켐 | 바이러스 차단성능이 우수한 보호복원단 및 이의 제조방법 |
CN114474905A (zh) * | 2020-11-13 | 2022-05-13 | 贝里国际公司 | 透气阻隔层合体 |
US20220205170A1 (en) * | 2020-12-28 | 2022-06-30 | Standard Textile Co., Inc. | Coated barrier fabric for a reusable medical product |
KR102357761B1 (ko) * | 2021-03-26 | 2022-02-09 | (주)이지켐 | 기능성 원단, 이로부터 제조되는 의류 및 이의 제조방법. |
CN113430714B (zh) * | 2021-06-08 | 2022-04-05 | 南通大学 | 一种β晶聚丙烯抗老化土工布及其制备方法 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05310665A (ja) | 1992-04-27 | 1993-11-22 | New Japan Chem Co Ltd | 新規なアミド系化合物 |
JPH0978464A (ja) | 1995-09-18 | 1997-03-25 | Unitika Ltd | 医療用積層生地 |
JP2003500258A (ja) * | 1999-06-02 | 2003-01-07 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | 複合シート材料 |
JP2003306564A (ja) * | 2002-04-17 | 2003-10-31 | Sumitomo Chem Co Ltd | マスク用フィルターおよびマスク |
JP2005515912A (ja) | 2001-12-12 | 2005-06-02 | キンバリー クラーク ワールドワイド インコーポレイテッド | バリア特性をもつフィラー入り不織ラミネート |
JP2007100056A (ja) * | 2005-10-07 | 2007-04-19 | Mitsui Chemicals Inc | 多孔質フィルムの製造方法および多孔質フィルム |
JP2011184807A (ja) * | 2010-03-04 | 2011-09-22 | Unitika Trading Co Ltd | 医療用織編物 |
JP2011256402A (ja) * | 2009-06-19 | 2011-12-22 | Mitsubishi Plastics Inc | 多孔性ポリプロピレンフィルム |
JP2013053386A (ja) | 2011-09-02 | 2013-03-21 | Unitika Trading Co Ltd | 医療用織物 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE145021T1 (de) * | 1991-03-22 | 1996-11-15 | Kappler Safety Group | Luftdurchlässiger verbundstoff |
US5169712A (en) * | 1991-08-23 | 1992-12-08 | Amoco Corporation | Porous film composites |
US5981038A (en) * | 1991-10-18 | 1999-11-09 | 3M Innovative Properties Company Minnesota Mining And Manufacturing Co. | Laminate preventing transmissions of viral pathogens |
JPH06114991A (ja) * | 1992-10-02 | 1994-04-26 | Toray Ind Inc | 複合不織布 |
US5532053A (en) * | 1994-03-01 | 1996-07-02 | W. R. Grace & Co.-Conn. | High moisture transmission medical film |
CA2205934C (en) * | 1994-11-28 | 2002-10-08 | John D. Langley | A breathable non-woven composite fabric |
US5786058A (en) * | 1995-04-03 | 1998-07-28 | Minnesota Mining & Mfg | Thermally bonded viral barrier composite |
US6114024A (en) * | 1995-08-01 | 2000-09-05 | Kimberly-Clark Worldwide, Inc. | Multilayer breathable film |
US6159590A (en) * | 1996-07-03 | 2000-12-12 | Higher Dimension Medical, Inc. | Puncture and cut resistant fabric |
JP3157107B2 (ja) * | 1996-08-21 | 2001-04-16 | 沖電気工業株式会社 | 通信データバッファの切替回路 |
US20030124324A1 (en) * | 2001-11-27 | 2003-07-03 | Kappler Safety Group | Breathable blood and viral barrier fabric |
JP2003210565A (ja) * | 2002-01-22 | 2003-07-29 | Sumitomo Chem Co Ltd | 医療用多孔性フィルム |
EP1572450B1 (en) * | 2002-12-12 | 2019-07-24 | Ahlstrom-Munksjo Nonwovens LLC | Ethylene oxide sterilizable, low cost nonwoven laminates with high wet peel strength and improved barrier properties |
KR100523474B1 (ko) * | 2005-03-29 | 2005-10-24 | 삼성토탈 주식회사 | 매우 높은 용융흐름성을 갖는 프로필렌 중합체의 제조방법 |
CN101250820B (zh) * | 2008-03-24 | 2010-06-16 | 天津工业大学 | 一种医用防护服材料及其制备方法 |
KR101661006B1 (ko) * | 2009-10-07 | 2016-09-28 | 도레이 카부시키가이샤 | 다공성 폴리프로필렌 필름 롤 |
CN101831811A (zh) * | 2010-05-21 | 2010-09-15 | 世源科技(嘉兴)医疗电子有限公司 | 一次性防护服用高阻隔性多层复合材料及其生产工艺 |
CN103717390B (zh) * | 2012-03-26 | 2015-10-14 | 三菱树脂株式会社 | 叠层多孔膜、非水电解质二次电池用隔板、以及非水电解质二次电池 |
-
2014
- 2014-12-01 US US15/101,609 patent/US20160318281A1/en not_active Abandoned
- 2014-12-01 EP EP14866985.6A patent/EP3078704A4/en not_active Withdrawn
- 2014-12-01 JP JP2015506005A patent/JP6090428B2/ja active Active
- 2014-12-01 RU RU2016126406A patent/RU2674199C1/ru active
- 2014-12-01 WO PCT/JP2014/081743 patent/WO2015083665A1/ja active Application Filing
- 2014-12-01 KR KR1020167016944A patent/KR20160095002A/ko not_active Application Discontinuation
- 2014-12-01 CN CN201480066183.5A patent/CN105764967B/zh active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05310665A (ja) | 1992-04-27 | 1993-11-22 | New Japan Chem Co Ltd | 新規なアミド系化合物 |
JPH0978464A (ja) | 1995-09-18 | 1997-03-25 | Unitika Ltd | 医療用積層生地 |
JP2003500258A (ja) * | 1999-06-02 | 2003-01-07 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | 複合シート材料 |
JP2005515912A (ja) | 2001-12-12 | 2005-06-02 | キンバリー クラーク ワールドワイド インコーポレイテッド | バリア特性をもつフィラー入り不織ラミネート |
JP2003306564A (ja) * | 2002-04-17 | 2003-10-31 | Sumitomo Chem Co Ltd | マスク用フィルターおよびマスク |
JP2007100056A (ja) * | 2005-10-07 | 2007-04-19 | Mitsui Chemicals Inc | 多孔質フィルムの製造方法および多孔質フィルム |
JP2011256402A (ja) * | 2009-06-19 | 2011-12-22 | Mitsubishi Plastics Inc | 多孔性ポリプロピレンフィルム |
JP2011184807A (ja) * | 2010-03-04 | 2011-09-22 | Unitika Trading Co Ltd | 医療用織編物 |
JP2013053386A (ja) | 2011-09-02 | 2013-03-21 | Unitika Trading Co Ltd | 医療用織物 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3078704A4 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017035826A (ja) * | 2015-08-10 | 2017-02-16 | ユニチカトレーディング株式会社 | 積層布帛、シームテープ及びリペアパッチ、並びに医療用外衣 |
JP2017105032A (ja) * | 2015-12-08 | 2017-06-15 | 三菱樹脂株式会社 | 透湿性積層体 |
JP2017105031A (ja) * | 2015-12-08 | 2017-06-15 | 三菱樹脂株式会社 | 透湿性積層体 |
WO2017119355A1 (ja) * | 2016-01-06 | 2017-07-13 | 東レ株式会社 | 防護服 |
EP3652246A4 (en) * | 2017-07-13 | 2020-11-25 | Enzpire Industry Co., Ltd. | STERILIZABLE MEDICAL PACKAGING WITH LIVE PORES |
JP2019064262A (ja) * | 2017-10-03 | 2019-04-25 | 儀城企業有限公司 | 複合型紡織製品 |
JP2022544869A (ja) * | 2019-12-18 | 2022-10-21 | 山東君泰医用防護用品科技有限公司 | 医療用複合材料及びその製造プロセス |
WO2021216389A1 (en) * | 2020-04-20 | 2021-10-28 | Celgard, Llc | Seam tape and related methods and products |
Also Published As
Publication number | Publication date |
---|---|
KR20160095002A (ko) | 2016-08-10 |
EP3078704A1 (en) | 2016-10-12 |
CN105764967A (zh) | 2016-07-13 |
JP6090428B2 (ja) | 2017-03-08 |
JPWO2015083665A1 (ja) | 2017-03-16 |
US20160318281A1 (en) | 2016-11-03 |
RU2674199C1 (ru) | 2018-12-05 |
EP3078704A4 (en) | 2017-07-19 |
CN105764967B (zh) | 2019-03-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6090428B2 (ja) | 防水・透湿材料およびそれを用いた医療用衣服ならびに防護服 | |
JP6497082B2 (ja) | 多孔性積層体 | |
JP6702888B2 (ja) | 通気性を有する微孔性熱可塑性の薄いフィルム | |
KR100941184B1 (ko) | 다층 미공성 필름 및 그 제조 방법 | |
TWI289103B (en) | Multi-capable elastic laminate process | |
EP3214216B1 (en) | Use of a spunbond non-woven fabric as a drape or medical clothing, non-woven fabric laminate, medical clothing, and drape | |
JP6716546B2 (ja) | ポリオレフィン系伸縮性フィルム構造、積層体、及びその方法 | |
CN106457806B (zh) | 多层薄膜及由其制造的制品 | |
KR20040029070A (ko) | 파단성 표피층을 갖는 통기성 다층 필름 | |
EP3386712B1 (en) | Multilayer polyethylene films, and articles made therefrom | |
US11780996B2 (en) | Breathable film | |
JP2002316359A (ja) | 多孔フィルム・不織布複合シート及びその製造方法 | |
JP6337422B2 (ja) | 複合フィルム | |
JPWO2015115289A1 (ja) | 多孔性フィルム、透湿防水シート、複合体および防護服 | |
JP2002096432A (ja) | 透湿性フィルム・不織布複合体 | |
JP2015163464A (ja) | 透湿防水シート | |
JP2016102203A (ja) | 多孔性フィルム、および透湿防水シート | |
JP2016102201A (ja) | 多孔性フィルム | |
EP3386742B1 (en) | Monolayer films, and articles made therefrom | |
EP3089872A1 (en) | Methods to make stretchable elastic laminates | |
JP2016102202A (ja) | 多孔性フィルム、透湿防水シート、複合体および防護服 | |
JP2016203594A (ja) | 複合シート及びその製造方法 | |
JP2023151346A (ja) | 樹脂シート及び樹脂シートの製造方法 | |
JP2017128079A (ja) | 透湿性シート |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2015506005 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14866985 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15101609 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 20167016944 Country of ref document: KR Kind code of ref document: A |
|
REEP | Request for entry into the european phase |
Ref document number: 2014866985 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2014866985 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2016126406 Country of ref document: RU Kind code of ref document: A |