JP5275648B2 - Woven and knitted fabrics and textiles with reduced breathability when moisture is absorbed - Google Patents
Woven and knitted fabrics and textiles with reduced breathability when moisture is absorbed Download PDFInfo
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- JP5275648B2 JP5275648B2 JP2008038867A JP2008038867A JP5275648B2 JP 5275648 B2 JP5275648 B2 JP 5275648B2 JP 2008038867 A JP2008038867 A JP 2008038867A JP 2008038867 A JP2008038867 A JP 2008038867A JP 5275648 B2 JP5275648 B2 JP 5275648B2
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- Prior art keywords
- knitted fabric
- woven
- fiber
- knitted
- air permeability
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- 239000004744 fabric Substances 0.000 title claims description 159
- 239000004753 textile Substances 0.000 title claims description 11
- 239000000835 fiber Substances 0.000 claims description 142
- 230000035699 permeability Effects 0.000 claims description 62
- 238000010521 absorption reaction Methods 0.000 claims description 58
- 239000004952 Polyamide Substances 0.000 claims description 54
- 229920002647 polyamide Polymers 0.000 claims description 54
- 229920000728 polyester Polymers 0.000 claims description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 45
- 239000002131 composite material Substances 0.000 claims description 42
- 238000001035 drying Methods 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 20
- 238000002788 crimping Methods 0.000 claims description 19
- 229920006146 polyetheresteramide block copolymer Polymers 0.000 claims description 18
- 230000007423 decrease Effects 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 11
- 230000009467 reduction Effects 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 10
- 239000005871 repellent Substances 0.000 claims description 8
- 230000002940 repellent Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 7
- LZFNKJKBRGFWDU-UHFFFAOYSA-N 3,6-dioxabicyclo[6.3.1]dodeca-1(12),8,10-triene-2,7-dione Chemical group O=C1OCCOC(=O)C2=CC=CC1=C2 LZFNKJKBRGFWDU-UHFFFAOYSA-N 0.000 claims description 6
- 210000004177 elastic tissue Anatomy 0.000 claims description 6
- 239000002759 woven fabric Substances 0.000 claims description 6
- MMINFSMURORWKH-UHFFFAOYSA-N 3,6-dioxabicyclo[6.2.2]dodeca-1(10),8,11-triene-2,7-dione Chemical group O=C1OCCOC(=O)C2=CC=C1C=C2 MMINFSMURORWKH-UHFFFAOYSA-N 0.000 claims description 5
- 239000000470 constituent Substances 0.000 claims description 3
- -1 polyethylene terephthalate Polymers 0.000 description 26
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 16
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 14
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 12
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 12
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 11
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 10
- 238000009940 knitting Methods 0.000 description 10
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical compound C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 9
- 229930185605 Bisphenol Natural products 0.000 description 9
- 238000004043 dyeing Methods 0.000 description 9
- 239000010410 layer Substances 0.000 description 9
- 229920000139 polyethylene terephthalate Polymers 0.000 description 9
- 239000005020 polyethylene terephthalate Substances 0.000 description 9
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 8
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000009987 spinning Methods 0.000 description 8
- 239000000178 monomer Substances 0.000 description 7
- 229920002292 Nylon 6 Polymers 0.000 description 6
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 6
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical compound NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 5
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- PBLZLIFKVPJDCO-UHFFFAOYSA-N 12-aminododecanoic acid Chemical compound NCCCCCCCCCCCC(O)=O PBLZLIFKVPJDCO-UHFFFAOYSA-N 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000001361 adipic acid Substances 0.000 description 4
- 235000011037 adipic acid Nutrition 0.000 description 4
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 150000004985 diamines Chemical class 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 150000003951 lactams Chemical group 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 4
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 4
- 229920000570 polyether Polymers 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 229920002302 Nylon 6,6 Polymers 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 125000002947 alkylene group Chemical group 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 238000006068 polycondensation reaction Methods 0.000 description 3
- LWBHHRRTOZQPDM-UHFFFAOYSA-N undecanedioic acid Chemical compound OC(=O)CCCCCCCCCC(O)=O LWBHHRRTOZQPDM-UHFFFAOYSA-N 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- PXGZQGDTEZPERC-UHFFFAOYSA-N 1,4-cyclohexanedicarboxylic acid Chemical compound OC(=O)C1CCC(C(O)=O)CC1 PXGZQGDTEZPERC-UHFFFAOYSA-N 0.000 description 2
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 230000001588 bifunctional effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- VHRGRCVQAFMJIZ-UHFFFAOYSA-N cadaverine Chemical compound NCCCCCN VHRGRCVQAFMJIZ-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 150000001991 dicarboxylic acids Chemical class 0.000 description 2
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- YXTFRJVQOWZDPP-UHFFFAOYSA-M sodium;3,5-dicarboxybenzenesulfonate Chemical compound [Na+].OC(=O)C1=CC(C(O)=O)=CC(S([O-])(=O)=O)=C1 YXTFRJVQOWZDPP-UHFFFAOYSA-M 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- RBACIKXCRWGCBB-UHFFFAOYSA-N 1,2-Epoxybutane Chemical compound CCC1CO1 RBACIKXCRWGCBB-UHFFFAOYSA-N 0.000 description 1
- PWGJDPKCLMLPJW-UHFFFAOYSA-N 1,8-diaminooctane Chemical compound NCCCCCCCCN PWGJDPKCLMLPJW-UHFFFAOYSA-N 0.000 description 1
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- GUOSQNAUYHMCRU-UHFFFAOYSA-N 11-Aminoundecanoic acid Chemical compound NCCCCCCCCCCC(O)=O GUOSQNAUYHMCRU-UHFFFAOYSA-N 0.000 description 1
- QFGCFKJIPBRJGM-UHFFFAOYSA-N 12-[(2-methylpropan-2-yl)oxy]-12-oxododecanoic acid Chemical compound CC(C)(C)OC(=O)CCCCCCCCCCC(O)=O QFGCFKJIPBRJGM-UHFFFAOYSA-N 0.000 description 1
- UNQWKAVGUZNMJZ-UHFFFAOYSA-N 2,3-dibromoterephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(Br)=C1Br UNQWKAVGUZNMJZ-UHFFFAOYSA-N 0.000 description 1
- ZRPKEUVFESZUKX-UHFFFAOYSA-N 2-(2-hydroxyethoxy)benzoic acid Chemical compound OCCOC1=CC=CC=C1C(O)=O ZRPKEUVFESZUKX-UHFFFAOYSA-N 0.000 description 1
- RVHUMFJSCJBNGS-UHFFFAOYSA-N 2-[2,6-dibromo-4-[2-[3,5-dibromo-4-(2-hydroxyethoxy)phenyl]propan-2-yl]phenoxy]ethanol Chemical compound C=1C(Br)=C(OCCO)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(OCCO)C(Br)=C1 RVHUMFJSCJBNGS-UHFFFAOYSA-N 0.000 description 1
- UTNSTOOXQPHXJQ-UHFFFAOYSA-N 2-[4-[4-(2-hydroxyethoxy)phenyl]sulfonylphenoxy]ethanol Chemical compound C1=CC(OCCO)=CC=C1S(=O)(=O)C1=CC=C(OCCO)C=C1 UTNSTOOXQPHXJQ-UHFFFAOYSA-N 0.000 description 1
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 description 1
- CARJPEPCULYFFP-UHFFFAOYSA-N 5-Sulfo-1,3-benzenedicarboxylic acid Chemical class OC(=O)C1=CC(C(O)=O)=CC(S(O)(=O)=O)=C1 CARJPEPCULYFFP-UHFFFAOYSA-N 0.000 description 1
- SLXKOJJOQWFEFD-UHFFFAOYSA-N 6-aminohexanoic acid Chemical compound NCCCCCC(O)=O SLXKOJJOQWFEFD-UHFFFAOYSA-N 0.000 description 1
- UFFRSDWQMJYQNE-UHFFFAOYSA-N 6-azaniumylhexylazanium;hexanedioate Chemical compound [NH3+]CCCCCC[NH3+].[O-]C(=O)CCCCC([O-])=O UFFRSDWQMJYQNE-UHFFFAOYSA-N 0.000 description 1
- HTVITOHKHWFJKO-UHFFFAOYSA-N Bisphenol B Chemical compound C=1C=C(O)C=CC=1C(C)(CC)C1=CC=C(O)C=C1 HTVITOHKHWFJKO-UHFFFAOYSA-N 0.000 description 1
- 229920001634 Copolyester Polymers 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 229920001007 Nylon 4 Polymers 0.000 description 1
- 229920003189 Nylon 4,6 Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- QFNNDGVVMCZKEY-UHFFFAOYSA-N azacyclododecan-2-one Chemical compound O=C1CCCCCCCCCCN1 QFNNDGVVMCZKEY-UHFFFAOYSA-N 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000006085 branching agent Substances 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- YQLZOAVZWJBZSY-UHFFFAOYSA-N decane-1,10-diamine Chemical compound NCCCCCCCCCCN YQLZOAVZWJBZSY-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 125000001142 dicarboxylic acid group Chemical group 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- BTVWZWFKMIUSGS-UHFFFAOYSA-N dimethylethyleneglycol Natural products CC(C)(O)CO BTVWZWFKMIUSGS-UHFFFAOYSA-N 0.000 description 1
- GIGWNNOCCCHECH-UHFFFAOYSA-L dipotassium;benzene-1,3-dicarboxylate Chemical compound [K+].[K+].[O-]C(=O)C1=CC=CC(C([O-])=O)=C1 GIGWNNOCCCHECH-UHFFFAOYSA-L 0.000 description 1
- TVIDDXQYHWJXFK-UHFFFAOYSA-N dodecanedioic acid Chemical compound OC(=O)CCCCCCCCCCC(O)=O TVIDDXQYHWJXFK-UHFFFAOYSA-N 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- PWSKHLMYTZNYKO-UHFFFAOYSA-N heptane-1,7-diamine Chemical compound NCCCCCCCN PWSKHLMYTZNYKO-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 239000005080 phosphorescent agent Substances 0.000 description 1
- XUWHAWMETYGRKB-UHFFFAOYSA-N piperidin-2-one Chemical compound O=C1CCCCN1 XUWHAWMETYGRKB-UHFFFAOYSA-N 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002215 polytrimethylene terephthalate Polymers 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
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- 239000002904 solvent Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Woven Fabrics (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
- Knitting Of Fabric (AREA)
- Multicomponent Fibers (AREA)
Description
本発明は、吸湿時に織編物の通気性が可逆的に低下する織編物、および該織編物を用いてなる繊維製品に関する。 The present invention relates to a woven or knitted fabric in which the breathability of the woven or knitted fabric is reversibly lowered when moisture is absorbed, and a fiber product using the woven or knitted fabric.
吸湿時と乾燥時とで織編物の空隙率が可逆的に変化することにより通気性が可逆的に変化する織編物は感湿布帛とも称され、近年種々提案されている。例えば、吸湿時に通気性が低下する織編物としては、ポリエステル成分とポリアミド成分がサイドバイサイド型に接合された複合繊維であって、吸湿時に捲縮率が低下する（みかけ長さが長くなる。）繊維を用いた織編物（例えば、特許文献１参照）や、吸水自己伸長糸を用いたもの（例えば、特許文献２参照）などが提案されている。 A woven or knitted fabric whose breathability is reversibly changed by reversibly changing the porosity of the woven or knitted fabric between moisture absorption and drying is also called a moisture-sensitive fabric, and has been proposed in recent years. For example, a woven or knitted fabric whose air permeability decreases when moisture is absorbed is a composite fiber in which a polyester component and a polyamide component are bonded in a side-by-side manner, and the crimp rate decreases when moisture is absorbed (the apparent length increases). There have been proposed woven and knitted fabrics using knitted fabric (for example, see Patent Document 1) and those using water-absorbing self-extending yarn (for example, see Patent Document 2).
これらの吸湿時に通気性が低下する織編物によれば、かかる織編物を用いた衣服を着用すると、雨や雪が衣服にかかった際に衣服の通気性が低下することにより保温性が向上したり、耐漏水性が向上するという効果が得られる。
なお、本出願人は、特願２００７−１８３２２４号において、吸湿時に捲縮率が向上する捲縮繊維を提案した。
According to these knitted and knitted fabrics that have reduced breathability when moisture is absorbed, wearing clothes using such knitted and knitted fabrics improves heat retention by reducing the breathability of the clothing when rain or snow hits the clothing. The effect of improving water leakage resistance is obtained.
In addition, this applicant proposed the crimped fiber in which a crimping rate improves at the time of moisture absorption in Japanese Patent Application No. 2007-183224.
本発明は上記の背景に鑑みなされたものであり、その目的は、吸湿時に捲縮率が向上する（みかけ長さが短くなる。）繊維を用いてなる、吸湿時に通気性が低下する織編物および該織編物を用いてなる繊維製品を提供することにある。 The present invention has been made in view of the above-described background, and an object of the present invention is to use a woven or knitted fabric that uses fibers that improve the crimp rate when absorbing moisture (shortens the apparent length), and that reduces air permeability when absorbing moisture. And providing a textile product using the woven or knitted fabric.
本発明者らは上記の課題を達成するため鋭意検討した結果、ポリエステル成分とポリアミド成分がサイドバイサイド型に接合された複合繊維において、ポリエステル成分を特定の共重合ポリエステルで形成することにより、吸湿時に捲縮率が向上する（みかけ長さが短くなる。）繊維が得られること、また、かかる複合繊維を用いて織編物を織編成すると吸湿時に通気性が低下する織編物が得られることを見出し、さらに鋭意検討を重ねることにより本発明を完成するに至った。 As a result of intensive studies to achieve the above-mentioned problems, the present inventors have found that, in a composite fiber in which a polyester component and a polyamide component are bonded in a side-by-side manner, the polyester component is formed of a specific copolymerized polyester, so It has been found that fibers with improved shrinkage (apparent length is shortened) can be obtained, and that a woven or knitted fabric with reduced breathability when moisture is absorbed by knitting the woven or knitted fabric using such a composite fiber, Furthermore, the present invention has been completed by intensive studies.
かくして、本発明によれば「吸湿時に通気性が低下する織編物であって、下記（１）と（２）の要件を同時に満足する捲縮繊維Ａを含むことを特徴とする吸湿時に通気性が低下する織編物。」が提供される。
（１）捲縮繊維Ａが、ポリエステル成分とポリアミド成分とがサイドバイサイド型に接合された複合繊維である。
（２）吸湿時における捲縮繊維Ａの捲縮率ＨＣと、乾燥時における捲縮繊維Ａの捲縮率ＤＣとの差（ＨＣ−ＤＣ）が０．５％以上である。
Thus, according to the present invention, “a woven or knitted fabric whose breathability is reduced when absorbing moisture, and including crimped fiber A that simultaneously satisfies the following requirements (1) and (2): Is provided. "
(1) The crimped fiber A is a composite fiber in which a polyester component and a polyamide component are joined in a side-by-side manner.
(2) The difference (HC−DC) between the crimp rate HC of the crimped fiber A at the time of moisture absorption and the crimp rate DC of the crimped fiber A at the time of drying is 0.5% or more.
ただし、乾燥時とは、試料を温度２０℃、湿度６５％ＲＨ環境下に２４時間放置した後の状態であり、一方、吸湿時とは、試料を温度２０℃、湿度９０％ＲＨ環境下に２４時間放置した後の状態である。 However, when dry, the sample is left for 24 hours in a temperature of 20 ° C. and a humidity of 65% RH. On the other hand, when moisture is absorbed, the sample is placed in a temperature of 20 ° C. and a humidity of 90% RH. This is the state after being left for 24 hours.
その際、前記ポリエステル成分が、ポリエステルを構成する繰り返し単位中６０〜９９．９モル％をエチレンテレフタレート単位が占め、０．５〜４０モル％をエチレンイソフタレート単位が占める共重合ポリエステルからなり、かつ該ポリエステル成分にポリエーテルエステルアミドがポリエステル重量に対して５〜５５重量％含まれることが好ましい。 In this case, the polyester component is composed of a copolymerized polyester in which 60 to 99.9 mol% of the repeating units constituting the polyester are occupied by ethylene terephthalate units and 0.5 to 40 mol% of ethylene isophthalate units are occupied, and The polyester component preferably contains 5 to 55% by weight of polyetheresteramide based on the weight of the polyester.
また、本発明の織編物において、他の繊維として、非捲縮または吸湿時に捲縮率が変化しない捲縮を有する繊維Ｂが含まれることが好ましい。かかる繊維Ｂしてはポリエステル繊維であることが好ましい。また、かかる繊維Ｂが単糸繊度１ｄｔｅｘ以下かつ単糸数３０本以上のマルチフィラメントであることが好ましい。また、かかる繊維Ｂが破断伸度３００％以上の弾性繊維であることが好ましい。 Moreover, in the woven or knitted fabric of the present invention, it is preferable that the other fibers include fibers B having crimps that do not change the crimp rate during non-crimping or moisture absorption. The fiber B is preferably a polyester fiber. The fiber B is preferably a multifilament having a single yarn fineness of 1 dtex or less and a single yarn number of 30 or more. The fiber B is preferably an elastic fiber having a breaking elongation of 300% or more.
またその際、前記捲縮繊維Ａと繊維Ｂとが引き揃えられて、織物の経糸および／または緯糸、または編物に配されていることが好ましい。また、前記捲縮繊維Ａと繊維Ｂとが織編物の構成糸条として、両者が交互に配されていることが好ましい。また、前記捲縮繊維Ａと繊維Ｂとが、捲縮繊維Ａが芯部に位置しかつ繊維Ｂが鞘部に位置する芯鞘型複合糸として織編物に含まれることが好ましい。また、織編物が２層以上の多層構造を有する多層構造織編物であって、少なくとも１層において該層を構成する総繊維重量のうち３０重量％以上が前記捲縮繊維Ａであることが好ましい。 At that time, it is preferable that the crimped fiber A and the fiber B are aligned and arranged on the warp and / or the weft of the woven fabric or the knitted fabric. Further, it is preferable that the crimped fibers A and the fibers B are alternately arranged as constituent yarns of the woven or knitted fabric. The crimped fiber A and the fiber B are preferably included in the woven or knitted fabric as a core-sheath type composite yarn in which the crimped fiber A is located in the core and the fiber B is located in the sheath. Further, the woven or knitted fabric is a multilayered woven or knitted fabric having a multilayer structure of two or more layers, and it is preferable that 30% by weight or more of the total fiber weight constituting the layer in at least one layer is the crimped fibers A. .
本発明の織編物において、織編物が下記に定義するカバーファクターＣＦが２０００〜４５００の範囲内の織物であることが好ましい。
ＣＦ＝（ＤＷｐ／１．１）１／２×ＭＷｐ＋（ＤＷｆ／１．１）１／２×ＭＷｆ
ただし、ＤＷｐは経糸総繊度（ｄｔｅｘ）、ＭＷｐは経糸織密度（本／２．５４ｃｍ）、ＤＷｆは緯糸総繊度（ｄｔｅｘ）、ＭＷｆは緯糸織密度（本／２．５４ｃｍ）である。
In the woven or knitted fabric of the present invention, the woven or knitted fabric is preferably a woven fabric having a cover factor CF defined below of 2000 to 4500.
CF = (DWp / 1.1) 1/2 × MWp + (DWf / 1.1) 1/2 × MWf
However, DWp is the total warp fineness (dtex), MWp is the warp weave density (main / 2.54 cm), DWf is the total weft fineness (dtex), and MWf is the weft weave density (main / 2.54 cm).
また、織編物が、４０ウエール／２．５４ｃｍ以上かつ５０コース／２．５４ｃｍ以上の編物であることが好ましい。また、織編物に加熱加圧加工が施されていることが好ましい。また、織編物に撥水加工が施されていることが好ましい。また、乾燥時における織編物の通気性が５０ｃｃ／ｃｍ２／ｓ以下であることが好ましい。また、下記式で定義する、吸湿時における織編物の通気性低下率が１０％以上であることが好ましい。
通気性低下率（％）＝（ＡＰＤ−ＡＰＨ）／ＡＰＤ×１００
ただし、ＡＰＤは乾燥時における織編物の通気性（ｃｃ／ｃｍ２／ｓ）であり、ＡＰＨは吸湿時における織編物の通気性（ｃｃ／ｃｍ２／ｓ）である。
Moreover, it is preferable that a woven or knitted fabric is a knitted fabric of 40 wales / 2.54 cm or more and 50 courses / 2.54 cm or more. Moreover, it is preferable that the heat and pressure processing is given to the woven or knitted fabric. The woven or knitted fabric is preferably subjected to water repellent treatment. Moreover, it is preferable that the air permeability of the woven or knitted fabric at the time of drying is 50 cc / cm 2 / s or less. Moreover, it is preferable that the air permeability reduction rate of the knitted or knitted fabric at the time of moisture absorption defined by the following formula is 10% or more.
Air permeability reduction rate (%) = (APD−APH) / APD × 100
However, APD is the air permeability (cc / cm 2 / s) of the woven or knitted fabric at the time of drying, and APH is the air permeability (cc / cm 2 / s) of the woven or knitted fabric at the time of moisture absorption.
また、織編物の漏水性が２０００ｃｃ以下であることが好ましい。ただし、漏水性はＪＩＳ Ｌ １０９２、６．３（雨試験A法）のブンデスマン雨試験装置を用いて、総水量７L／ｍｉｎに設定し１０分間の漏水量を測定するものとする。
また、本発明によれば、前記の織編物を用いてなる、アウター用衣料、スポーツ用衣料、およびインナー用衣料からなる群より選択される繊維製品が提供される。
Further, the water leakage of the woven or knitted fabric is preferably 2000 cc or less. However, the water leakage shall be set to a total water volume of 7 L / min using a Bundesman rain test device of JIS L 1092, 6.3 (Rain Test A Method), and the amount of water leaked for 10 minutes shall be measured.
According to the present invention, there is also provided a textile product selected from the group consisting of an outer garment, a sports garment, and an inner garment using the woven or knitted fabric.
本発明によれば、吸湿時に捲縮率が向上する（みかけ長さが短くなる。）繊維を用いてなる、吸湿時に通気性が低下する織編物および該織編物を用いてなる繊維製品が得られる。 According to the present invention, there are obtained a woven or knitted fabric that uses fibers that improve the crimping rate when moisture is absorbed (the apparent length is shortened) and that has reduced air permeability when absorbed, and a fiber product that uses the woven or knitted fabric. It is done.
以下、本発明の実施の形態について詳細に説明する。
本発明の織編物は、下記（１）と（２）の要件を同時に満足する捲縮繊維Ａが含まれることにより、吸湿時に捲縮繊維Ａの捲縮率が向上することにより、捲縮繊維Ａのみかけ長さが短くなる。その結果、吸湿時に織編物全体の面積が小さくなるため、織編物の空隙率が低下し織編物の通気性が低下する。一方、乾燥時には、捲縮繊維Ａの捲縮率が低下することにより、捲縮繊維Ａのみかけ長さが長くなる。その結果、乾燥時に織編物全体の面積が大きくなるため、織編物の空隙率が増大し織編物の通気性が向上する。
（１）捲縮繊維Ａが、ポリエステル成分とポリアミド成分とがサイドバイサイド型に接合された複合繊維である。
（２）吸湿時における捲縮繊維Ａの捲縮率ＨＣと、乾燥時における捲縮繊維Ａの捲縮率ＤＣとの差（ＨＣ−ＤＣ）が０．５％以上（好ましくは５％以上）である。
Hereinafter, embodiments of the present invention will be described in detail.
The woven or knitted fabric of the present invention includes a crimped fiber A that satisfies the following requirements (1) and (2) at the same time, thereby improving the crimp rate of the crimped fiber A at the time of moisture absorption. The apparent length of A is shortened. As a result, since the area of the entire woven or knitted fabric becomes smaller when moisture is absorbed, the porosity of the woven or knitted fabric is lowered, and the air permeability of the woven or knitted fabric is lowered. On the other hand, at the time of drying, the apparent length of the crimped fiber A becomes longer due to the reduction of the crimp rate of the crimped fiber A. As a result, the area of the entire woven or knitted fabric becomes large during drying, so that the porosity of the woven or knitted fabric is increased and the air permeability of the woven or knitted fabric is improved.
(1) The crimped fiber A is a composite fiber in which a polyester component and a polyamide component are joined in a side-by-side manner.
(2) The difference (HC-DC) between the crimp rate HC of the crimped fiber A at the time of moisture absorption and the crimp rate DC of the crimped fiber A at the time of drying is 0.5% or more (preferably 5% or more). It is.
ただし、乾燥時とは、試料を温度２０℃、湿度６５％ＲＨ環境下に２４時間放置した後の状態であり、一方、吸湿時とは、試料を温度２０℃、湿度９０％ＲＨ環境下に２４時間放置した後の状態である。 However, when dry, the sample is left for 24 hours in a temperature of 20 ° C. and a humidity of 65% RH. On the other hand, when moisture is absorbed, the sample is placed in a temperature of 20 ° C. and a humidity of 90% RH. This is the state after being left for 24 hours.
ここで、吸湿時における捲縮繊維Ａの捲縮率ＨＣと、乾燥時における捲縮繊維Ａの捲縮率ＤＣとの差（ＨＣ−ＤＣ）が０．５％未満では、吸湿時に織編物の通気性があまり低下せず好ましくない。なお、乾燥時における捲縮繊維Ａの捲縮率ＤＣとしては５０〜８０％の範囲内であることが好ましい。一方、吸湿時における捲縮繊維Ａの捲縮率ＨＣとしては６０〜９０％の範囲内であることが好ましい。 Here, if the difference (HC-DC) between the crimp rate HC of the crimped fiber A at the time of moisture absorption and the crimp rate DC of the crimped fiber A at the time of drying is less than 0.5%, The air permeability is not so lowered, which is not preferable. In addition, it is preferable that it is in the range of 50 to 80% as crimp ratio DC of the crimped fiber A at the time of drying. On the other hand, the crimp rate HC of the crimped fiber A at the time of moisture absorption is preferably in the range of 60 to 90%.
前記捲縮繊維Ａとしては、以下のようなポリエステル成分とポリアミド成分とがサイドバイサイド型に接合された複合繊維であって、潜在捲縮性能が発現してなる捲縮構造を有する捲縮繊維であることが好ましい。 The crimped fiber A is a composite fiber in which the following polyester component and polyamide component are joined in a side-by-side manner, and is a crimped fiber having a crimped structure in which latent crimping performance is expressed. It is preferable.
すなわち、前記ポリアミド成分としては、主鎖中にアミド結合を有するポリマーであり、例えばナイロン４、ナイロン６、ナイロン１２、ナイロン４６、ナイロン６６等が挙げられる。特にコスト面、汎用性、製糸性等の観点からナイロン６、ナイロン６６が好ましい。なお、これらのポリアミド成分をベースに公知の成分を共重合せしめても良く、又はこれらのポリアミド成分に酸化チタンやカーボンブラック等の顔料、公知の抗酸化剤、帯電防止剤、耐光剤等を含有させても良い。 That is, the polyamide component is a polymer having an amide bond in the main chain, and examples thereof include nylon 4, nylon 6, nylon 12, nylon 46, nylon 66, and the like. Nylon 6 and nylon 66 are particularly preferable from the viewpoints of cost, versatility, and yarn production. These polyamide components may be copolymerized with known components, or these polyamide components contain pigments such as titanium oxide and carbon black, known antioxidants, antistatic agents, light-proofing agents, etc. You may let them.
一方、前記ポリエステル成分は、そのポリエステルを構成する繰り返し単位中６０〜９９．５モル％をエチレンテレフタレート単位が占め、０．５〜４０モル％をエチレンイソフタレート単位が占める共重合ポリエステルから構成されることが好ましい。通常、ポリエステルの熱収縮率はポリアミドよりもかなり低いが、ポリエステルとしてこのような共重合ポリエステルを採用することによりポリエステルの熱収縮率をポリアミドに近づけることが可能となる。その結果、乾燥時の捲縮曲がり構造において、吸湿時の捲縮曲がり構造において、膨潤したポリアミド成分が外側に位置し、ポリエステル成分が内側に位置する構造になりやすくなり捲縮率が向上しやすい。ここで、エチレンテレフタレート単位が６０モル％未満であると、得られる複合繊維の強伸度等の基本物性が十分に保持できないため好ましくない。エチレンテレフタレート単位が９９．５モル％を超えたり、エチレンイソフタレートが０．５モル％未満であると、複合繊維が吸湿したときに捲縮率があまり向上せず（捲縮糸の見かけ長さが短くならず）、布帛にしたときに十分な通気性の低下が得られないおそれがある。エチレンイソフタレートが４０モル％を越えると、複合繊維の強伸度等の基本物性が保持できず、また熱安定性にも劣り、製糸工程において分解性異物により紡糸口金部の濾過圧（パック圧）上昇が著しくなるおそれがある。 On the other hand, the polyester component is composed of a copolymer polyester in which 60 to 99.5 mol% of the repeating units constituting the polyester are occupied by ethylene terephthalate units and 0.5 to 40 mol% of ethylene isophthalate units are occupied. It is preferable. Usually, the heat shrinkage rate of polyester is considerably lower than that of polyamide. However, by employing such a copolyester as the polyester, it becomes possible to bring the heat shrinkage rate of the polyester closer to that of polyamide. As a result, in the crimped bent structure at the time of drying, in the crimped bent structure at the time of moisture absorption, the swollen polyamide component is located on the outside, and the polyester component is easily located on the inside, and the crimp rate is easily improved. . Here, it is not preferable that the ethylene terephthalate unit is less than 60 mol% because basic physical properties such as strength and elongation of the obtained composite fiber cannot be sufficiently maintained. When the ethylene terephthalate unit exceeds 99.5 mol% or the ethylene isophthalate is less than 0.5 mol%, the crimp rate is not improved so much when the composite fiber absorbs moisture (the apparent length of the crimped yarn). However, when the fabric is used, there is a possibility that a sufficient decrease in air permeability cannot be obtained. If the ethylene isophthalate exceeds 40 mol%, the basic physical properties such as the strength and elongation of the composite fiber cannot be maintained, and the thermal stability is inferior. ) There is a risk of a significant increase.
かかるポリエステルは任意の方法で製造されたものでよく、例えばポリエチレンテレフタレートについて説明すれば、テレフタル酸とエチレングリコールとを直接エステル化反応させる、テレフタル酸ジメチルの如きテレフタル酸の低級アルキルエステルとエチレングリコールとを直接エステル化反応させる、又はテレフタル酸とエチレンオキサイドとを反応させるなどして、テレフタル酸のグリコールエステル及び／又はその低重合体を生成させる。次いでこの生成物を減圧下加熱して所望の重合度になるまで重縮合反応させることによって製造される。 Such a polyester may be produced by an arbitrary method. For example, polyethylene terephthalate will be described. A lower alkyl ester of terephthalic acid such as dimethyl terephthalate and ethylene glycol are obtained by directly esterifying terephthalic acid and ethylene glycol. Is directly esterified, or terephthalic acid and ethylene oxide are reacted to produce a glycol ester of terephthalic acid and / or a low polymer thereof. Next, the product is produced by heating under reduced pressure to cause a polycondensation reaction until a desired degree of polymerization is achieved.
なお、このポリエステルは、ポリエステルを構成するエチレンテレフタレート成分及びエチレンイソフタレート成分以外に、第三成分が共重合されていてもよく、第三成分は、ジカルボン酸成分又はグリコール成分のいずれでもよい。かかるジカルボン酸としては、例えば、フタル酸、ジブロモテレフタル酸、ナフタレンジカルボン酸、ジフェニルジカルボン酸、ジフェノキシエタンジカルボン酸、β−ヒドロキシエトキシ安息香酸の如き二官能性芳香族ジカルボン酸、セバシン酸、アジピン酸、シュウ酸の如き二官能性脂肪族ジカルボン酸、１，４−シクロヘキサンジカルボン酸等を挙げることができる。また上記グリコール成分の一部を他のグリコール成分で置き換えてもよく、かかるグリコール成分としては例えばシクロヘキサン−１，４−ジメタノール、ネオペンチルグリコール，ビスフェノールＡ，ビスフェノールＳ、２，２−ビス（４−β−ヒドロキシエトキシフェニル）プロパン、ビス（４−β−ヒドロキシエトキシフェニル）スルホン、２，２−ビス（３，５−ジブロモ−４−（２−ハイドロキシエトキシ）フェニル）プロパンの如き脂肪族、脂環族、芳香族のジオールが挙げられる。更に、上述のポリエステルに必要に応じて他のポリマーを少量ブレンド溶融したもの、ペンタエリスリトール、トリメチロールプロパン、トリメリット酸等の鎖分岐剤を少量使用したものであってもよい。このほか本発明のポリエステルは通常のポリエステルと同様に二酸化チタン、カーボンブラック等の顔料他、従来公知の抗酸化剤、着色防止剤が添加されていても勿論良い。 In this polyester, a third component may be copolymerized in addition to the ethylene terephthalate component and the ethylene isophthalate component constituting the polyester, and the third component may be either a dicarboxylic acid component or a glycol component. Examples of such dicarboxylic acids include bifunctional aromatic dicarboxylic acids such as phthalic acid, dibromoterephthalic acid, naphthalenedicarboxylic acid, diphenyldicarboxylic acid, diphenoxyethanedicarboxylic acid, β-hydroxyethoxybenzoic acid, sebacic acid, and adipic acid. , Bifunctional aliphatic dicarboxylic acid such as oxalic acid, 1,4-cyclohexanedicarboxylic acid and the like. A part of the glycol component may be replaced with another glycol component. Examples of the glycol component include cyclohexane-1,4-dimethanol, neopentyl glycol, bisphenol A, bisphenol S, 2,2-bis (4 Aliphatics such as -β-hydroxyethoxyphenyl) propane, bis (4-β-hydroxyethoxyphenyl) sulfone, 2,2-bis (3,5-dibromo-4- (2-hydroxyethoxy) phenyl) propane, fat Examples thereof include cyclic and aromatic diols. Furthermore, the above-mentioned polyester may be obtained by blending and melting a small amount of other polymers as required, or by using a small amount of a chain branching agent such as pentaerythritol, trimethylolpropane or trimellitic acid. In addition, the polyester of the present invention may of course be added with conventionally known antioxidants and anti-coloring agents in addition to pigments such as titanium dioxide and carbon black as in the case of ordinary polyesters.
該ポリエステル成分にはポリエーテルエステルアミドが含まれることが好ましい。ポリエステル成分にポリエーテルエステルアミドが含まれていると、ポリエステル成分が柔らかくなり、吸湿時において、ポリアミド成分が膨潤する際にポリエステル成分が追従しやすくなり、吸湿時に捲縮率が向上しやすくなるため好ましい。該ポリエーテルエステルアミドのポリエステル成分への添加量はポリエステル成分重量に対して５〜５５重量％であることが好ましい。５重量％未満では、複合繊維が吸湿したときに、捲縮率があまり向上せず（捲縮繊維の見かけ長さが短くなりにくく）、布帛にしたときに十分な通気性の低下が得られないおそれがある。また、５５重量％を超えると、安定的に紡糸ができなくなるおそれがある。 The polyester component preferably contains a polyether ester amide. If the polyester component contains polyetheresteramide, the polyester component becomes soft, and when the moisture is absorbed, the polyester component tends to follow when the polyamide component swells, and the crimp rate is easily improved when moisture is absorbed. preferable. The amount of the polyether ester amide added to the polyester component is preferably 5 to 55% by weight based on the weight of the polyester component. If it is less than 5% by weight, the crimp rate does not improve so much when the composite fiber absorbs moisture (the apparent length of the crimp fiber is less likely to be shortened), and a sufficient decrease in air permeability is obtained when it is made into a fabric. There is a risk of not. On the other hand, if it exceeds 55% by weight, stable spinning may not be possible.
該ポリエーテルエステルアミドは、好ましくは、両末端にカルボキシル基を有する数平均分子量５００〜５，０００のポリアミド（ａ）と数平均分子量１，６００〜３，０００のビスフェノール類のエチレンオキシド付加物（ｂ）から誘導される。「誘導」とは両成分を反応させて得られるの意味であり、共重合して得られるとも捉えることができる。 The polyether ester amide is preferably an ethylene oxide adduct (b) of a polyamide (a) having a carboxyl group at both ends and having a number average molecular weight of 500 to 5,000 and a bisphenol having a number average molecular weight of 1,600 to 3,000. ) "Induction" means that it is obtained by reacting both components, and can also be understood as being obtained by copolymerization.
両末端にカルボキシル基を有するポリアミド（ａ）は、ポリアミド部分と分子量調節剤からなる事が好ましい。そのポリアミド部分は（１）ラクタム開環重合体、（２）アミノカルボン酸の重縮合体、若しくは（３）ジカルボン酸とジアミンの重縮合体の少なくともいずれか１つからなる。このうち、（１）のラクタムとしては、ブチロラクタム、バレロラクタム、カプロラクタム、エナントラクタム、ラウロラクタム、ウンデカノラクタムなどが挙げられる。（２）のアミノカルボン酸としては、ω−アミノカプロン酸、ω−アミノエナント酸、ω−アミノペルゴン酸、ω−アミノカプリン酸，１１−アミノウンデカン酸、１２−アミノドデカン酸などが挙げられる。（３）のジカルボン酸としては、アジピン酸、アゼライン酸、セバシン酸、ウンデカンジ酸、ドデカンジ酸，イソフタル酸などが挙げられる。また（３）のジアミンとしては、テトラメチレンジアミン、ペンタメチレンジアミン、ヘキサメチレンジアミン、ヘプタメチレンジアミン、オクタメチレンジアミン、デカメチレンジアミンなどが挙げられる。以上これらのラクタム、アミノカルボン酸、ジカルボン酸、ジアミンを総称してポリアミド部分形成性モノマーと称する。 The polyamide (a) having carboxyl groups at both ends preferably comprises a polyamide portion and a molecular weight regulator. The polyamide portion is composed of at least one of (1) a lactam ring-opening polymer, (2) a polycondensate of aminocarboxylic acid, or (3) a polycondensate of dicarboxylic acid and diamine. Among these, the lactam of (1) includes butyrolactam, valerolactam, caprolactam, enantolactam, laurolactam, undecanolactam and the like. Examples of the aminocarboxylic acid (2) include ω-aminocaproic acid, ω-aminoenanthic acid, ω-aminopergonic acid, ω-aminocapric acid, 11-aminoundecanoic acid, and 12-aminododecanoic acid. Examples of the dicarboxylic acid (3) include adipic acid, azelaic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, and isophthalic acid. Examples of the diamine (3) include tetramethylene diamine, pentamethylene diamine, hexamethylene diamine, heptamethylene diamine, octamethylene diamine, and decamethylene diamine. These lactams, aminocarboxylic acids, dicarboxylic acids, and diamines are collectively referred to as polyamide part-forming monomers.
上記の両末端にカルボキシル基を有するポリアミド（ａ）のポリアミド部分形成性モノマーとして例示したものは、２種以上を併用してもよい。これらのうち好ましいものは、カプロラクタム，１２−アミノドデカン酸及びアジピン酸−ヘキサメチレンジアミンであり、特に好ましいものは、カプロラクタムである。 What was illustrated as a polyamide part formation monomer of the polyamide (a) which has a carboxyl group in both said terminal may use 2 or more types together. Among these, caprolactam, 12-aminododecanoic acid and adipic acid-hexamethylenediamine are preferable, and caprolactam is particularly preferable.
上記の両末端にカルボキシル基を有するポリアミド（ａ）は、更に炭素数４〜２０のジカルボン酸成分を分子量調整剤として使用し、これの存在下に上記ポリアミド部分形成性モノマーを常法により開環重合あるいは重縮合させることによって得られる。炭素数４〜２０のジカルボン酸としては、コハク酸、グルタル酸、アジピン酸、ピメリン酸、スベリン酸、アゼライン酸、セバシン酸、ウンデカンジ酸、若しくはドデカンジ酸などの脂肪酸ジカルボン酸；テレフタル酸、イソフタル酸、フタル酸、若しくはナフタレンジカルボン酸などの芳香族ジカルボン酸；１，４−シクロヘキサンジカルボン酸、若しくはジシクロヘキシル−４，４−ジカルボン酸などの脂肪族ジカルボン酸；又は５−スルホイソフタル酸ナトリウム、若しくは５−スルホイソフタル酸カリウムなどの５−スルホイソフタル酸アルカリ金属塩などが挙げられる。これらのうち、好ましいものは、脂肪族ジカルボン酸、芳香族ジカルボン酸及び５−スルホイソフタル酸アルカリ金属塩である。より好ましいものはアジピン酸、テレフタル酸、５−スルホイソフタル酸ナトリウムである。 The above polyamide (a) having carboxyl groups at both ends further uses a dicarboxylic acid component having 4 to 20 carbon atoms as a molecular weight regulator, and in the presence thereof, the polyamide part-forming monomer is opened by a conventional method. It can be obtained by polymerization or polycondensation. Examples of the dicarboxylic acid having 4 to 20 carbon atoms include fatty acid dicarboxylic acids such as succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, undecanediic acid, and dodecanediic acid; terephthalic acid, isophthalic acid, Aromatic dicarboxylic acids such as phthalic acid or naphthalenedicarboxylic acid; aliphatic dicarboxylic acids such as 1,4-cyclohexanedicarboxylic acid or dicyclohexyl-4,4-dicarboxylic acid; or sodium 5-sulfoisophthalate or 5-sulfo Examples include 5-sulfoisophthalic acid alkali metal salts such as potassium isophthalate. Of these, preferred are aliphatic dicarboxylic acids, aromatic dicarboxylic acids, and alkali metal salts of 5-sulfoisophthalic acid. More preferred are adipic acid, terephthalic acid, and sodium 5-sulfoisophthalate.
ポリアミド部分形成性モノマーを常法により開環重合あるいは重縮合させる際には、その平均重合度は２〜１０である場合が好ましく、より好ましくは平均重合度が３〜８である。その結果このポリアミド部分の数平均分子量は１００〜１，０００、より好ましくは３００〜７００である。 When the polyamide part-forming monomer is subjected to ring-opening polymerization or polycondensation by a conventional method, the average degree of polymerization is preferably from 2 to 10, more preferably from 3 to 8. As a result, the number average molecular weight of the polyamide portion is 100 to 1,000, more preferably 300 to 700.
更に上記両末端にカルボキシル基を有するポリアミド（ａ）は、分子量調整剤である炭素数４〜２０のジカルボン酸成分の両末端にポリアミド部分が付与されている成分、片末端にポリアミド部分が付与されている成分、又は両末端にポリアミド部分が付与されている成分及び片末端にポリアミド部分が付与されている成分の混合物であっても良い。混合物である場合には、片末端にポリアミド部分が付与されている成分が１モルに対して、両末端にポリアミド部分が付与されている成分が１〜１０モルとなるモル比が好ましい。より好ましくは片末端に付与されている成分１モルに対して、両末端に付与されている成分３〜８モルである。そして両末端にカルボキシル基を有するように上述のポリアミド部分形成性モノマーのカルボキシル基を有する成分の量を適宜調整する。ポリアミド部分形成性モノマーとしてラクタム及び／又はアミノカルボン酸のみ使用するならば分子量調節剤がジカルボン酸成分なので、容易に両末端がカルボキシル基を有するポリアミド（ａ）を
製造することができる。ポリアミド部分形成性モノマーとしてジカルボン酸とジアミンの重縮合体を用いる場合には、例えば重合体の最後にジカルボン酸を改めて反応させる等の方法を用いる事で両末端がカルボキシル基を有するポリアミド（ａ）を製造することができる。
Furthermore, the polyamide (a) having a carboxyl group at both ends is a component having a polyamide moiety added to both ends of a dicarboxylic acid component having 4 to 20 carbon atoms, which is a molecular weight regulator, and a polyamide portion added to one end. Or a mixture of a component having a polyamide moiety at both ends and a component having a polyamide moiety at one end. In the case of a mixture, a molar ratio of 1 to 10 moles of the component having the polyamide moiety at both ends to 1 mole of the component to which the polyamide moiety is imparted at one end is preferable. More preferably, it is 3 to 8 moles of the component imparted to both ends with respect to 1 mole of the component imparted to one end. And the quantity of the component which has a carboxyl group of the above-mentioned polyamide part formation monomer is adjusted suitably so that it may have a carboxyl group in both ends. If only the lactam and / or aminocarboxylic acid is used as the polyamide part-forming monomer, the molecular weight modifier is a dicarboxylic acid component, so that the polyamide (a) having carboxyl groups at both ends can be easily produced. When a polycondensate of dicarboxylic acid and diamine is used as the polyamide part-forming monomer, for example, a polyamide (a) having carboxyl groups at both ends by using a method such as reacting the dicarboxylic acid again at the end of the polymer. Can be manufactured.
上記両末端にカルボキシル基を有するポリアミド（ａ）の数平均分子量は、通常、５００〜５,０００、好ましくは５００〜３,０００である。数平均分子量が５００未満ではポリエーテルエステルアミド自体の耐熱性が低下し、一方、５,０００を超えると反応性が低下するためポリエーテルエステルアミド製造時に多大な時間を要する。数平均分子量をこの範囲とするためには、分子量調節剤となる炭素数４〜２０のジカルボン酸成分の選択、ポリアミド部分の重合の際における反応条件を適宜設定することによって可能となる。 The number average molecular weight of the polyamide (a) having a carboxyl group at both ends is usually 500 to 5,000, preferably 500 to 3,000. When the number average molecular weight is less than 500, the heat resistance of the polyether ester amide itself is lowered. On the other hand, when it exceeds 5,000, the reactivity is lowered, so that much time is required for producing the polyether ester amide. In order to make the number average molecular weight within this range, it is possible to select a dicarboxylic acid component having 4 to 20 carbon atoms to be a molecular weight regulator and appropriately set the reaction conditions in the polymerization of the polyamide portion.
また、ビスフェノール類のエチレンオキシド付加物（ｂ）において、ビスフェノール類としては、ビスフェノールＡ（４，４’−ジヒドロキシジフェニル−２，２−プロパン）、ビスフェノールＦ（４，４’−ジヒドロキシジフェニルメタン）、ビスフェノールＳ（４，４’−ジヒドロキシジフェニルスルホン）及び４，４’−ジヒドロキシジフェニル−２，２−ブタンなどが挙げられ、これらのうちビスフェノールＡが好ましい。 In the ethylene oxide adduct (b) of bisphenols, bisphenols include bisphenol A (4,4′-dihydroxydiphenyl-2,2-propane), bisphenol F (4,4′-dihydroxydiphenylmethane), bisphenol S. (4,4′-dihydroxydiphenylsulfone) and 4,4′-dihydroxydiphenyl-2,2-butane are exemplified, and among these, bisphenol A is preferable.
上記のビスフェノール類のエチレンオキシド付加物（ｂ）は、これらのビスフェノール類にエチレンオキシドを常法により付加させることにより得られる。また、エチレンオキシドと共に他のアルキレンオキシド（プロピレンオキシド、１，２−ブチレンオキシド、１，４−ブチレンオキシドなど）を併用することもできるが、他のアルキレンオキシドの用いる量は用いる全エチレンオキシドの重量に基づいて、通常、１０重量％以下である。 The ethylene oxide adduct (b) of the above bisphenols can be obtained by adding ethylene oxide to these bisphenols by a conventional method. Also, other alkylene oxides (propylene oxide, 1,2-butylene oxide, 1,4-butylene oxide, etc.) can be used in combination with ethylene oxide, but the amount of other alkylene oxide used is based on the weight of the total ethylene oxide used. Usually, it is 10% by weight or less.
また上記付加物（ｂ）はビスフェノール類の２つのヒドロキシル基に対して、平均で２０〜７０モルのエチレンオキシド、他のアルキレンオキシド（以下、エチレンオキシド等という）が重合されている場合が好ましい。より好ましくは３２〜６０モルのエチレンオキシド等が重合されている場合である。すなわちビスフェノールの１つのヒドロキシル基に対して１０〜３５モル、より好ましくは１６〜３０モル、更に好ましくは１６〜２０モルのエチレンオキシド等が重合（付加）されている付加物であることである。 The adduct (b) preferably has an average of 20 to 70 moles of ethylene oxide and other alkylene oxides (hereinafter referred to as ethylene oxide or the like) polymerized with respect to the two hydroxyl groups of the bisphenols. More preferably, 32 to 60 mol of ethylene oxide or the like is polymerized. That is, it is an adduct in which 10 to 35 mol, more preferably 16 to 30 mol, and still more preferably 16 to 20 mol of ethylene oxide or the like is polymerized (added) with respect to one hydroxyl group of bisphenol.
上記付加物（ｂ）の数平均分子量は、通常、１,６００〜３,０００であり、特にエチレンオキシド付加モル数が３２〜６０のものを使用することが好ましい。数平均分子量が１,６００未満では、帯電防止性が不十分となり、一方、３,０００を超えると反応性が低下するためポリエーテルエステルアミド製造時に多大な時間を要する。数平均分子量は、好ましくは１，８００〜２，４００、エチレンオキシド等の付加モル数は、さらに好ましくは３２〜４０である。数平均分子量をこの範囲にするには、ビスフェノール類の分子量を考慮したうえで、エチレンオキシド等の付加モル数をその調整することにより達成する事ができる。 The number average molecular weight of the adduct (b) is usually 1,600 to 3,000, and it is particularly preferable to use one having an ethylene oxide addition mole number of 32 to 60. When the number average molecular weight is less than 1,600, the antistatic property becomes insufficient. On the other hand, when it exceeds 3,000, the reactivity is lowered, so that a great amount of time is required for producing the polyetheresteramide. The number average molecular weight is preferably 1,800 to 2,400, and the number of added moles such as ethylene oxide is more preferably 32 to 40. In order to make the number average molecular weight within this range, the molecular weight of bisphenols is taken into consideration, and the number of added moles of ethylene oxide or the like can be adjusted.
以上の付加物（ｂ）は、ポリエーテルエステルアミド中の上記（ａ）と（ｂ）の合計重量に基づいて２０〜８０重量％の範囲で用いられる。付加物（ｂ）の量が２０重量％未満ではポリエーテルエステルアミドの帯電防止性が劣り、一方、８０重量％を超えるとポリエーテルエステルアミドの耐熱性が低下するために好ましくない。より好ましくは、付加物（ｂ）は上記（ａ）と（ｂ）の合計重量に基づいて４０〜７０重量％の範囲で用いられる。 The above adduct (b) is used in the range of 20 to 80% by weight based on the total weight of the above (a) and (b) in the polyether ester amide. If the amount of the adduct (b) is less than 20% by weight, the antistatic property of the polyether ester amide is inferior. On the other hand, if it exceeds 80% by weight, the heat resistance of the polyether ester amide is lowered, which is not preferable. More preferably, the adduct (b) is used in the range of 40 to 70% by weight based on the total weight of the above (a) and (b).
本発明に用いられるポリエーテルエステルアミドの相対粘度は、１．５〜３．５（０．５重量％、ｍ−クレゾール溶液、２５℃）、好ましくは、２．０〜３．０である。１．５未満では、混練するベースポリマー成分（ポリアミド成分及びポリエステル成分）との溶融粘度差が大きくなるために導管内や紡糸パック内で滞留しやすくなり、長時間にわたる紡糸を実施すると吐出異常が起こりやすく、得られる複合繊維の品質が安定しない。一方、３．５を超える範囲では、製糸の際の断糸の原因となる。 The relative viscosity of the polyether ester amide used in the present invention is 1.5 to 3.5 (0.5 wt%, m-cresol solution, 25 ° C.), preferably 2.0 to 3.0. If it is less than 1.5, the difference in melt viscosity from the base polymer component (polyamide component and polyester component) to be kneaded becomes large, so that it tends to stay in the conduit or the spinning pack. It tends to occur and the quality of the resulting composite fiber is not stable. On the other hand, in the range exceeding 3.5, it becomes a cause of yarn breakage during yarn production.
該ポリエーテルエステルアミドのポリアミド成分への添加量は０重量％が最適である。少量でも添加すると、ポリアミド成分の吸湿伸長性が低下し、本発明の目的である吸湿時に捲縮が発現してみかけ糸長が縮むという機能が損なわれる。 The addition amount of the polyether ester amide to the polyamide component is optimally 0% by weight. If even a small amount is added, the hygroscopic elongation property of the polyamide component is lowered, and the function of the occurrence of crimping and the apparent yarn length shrinking at the time of moisture absorption, which is the object of the present invention, is impaired.
前記のサイドバイサイド型複合繊維においては、任意の繊度、断面形状、複合形態をとることができるが、単糸繊度としては、１．５〜５．０ｄｔｅｘ程度が適当である。さらに、本発明の複合繊維を中空複合繊維とすると湿度に対する感度も大きく、かつ嵩高性も大きくなる。また、ポリアミド成分とポリエステル成分の複合繊維の横断面における面積比は、ポリアミド成分／ポリエステル成分＝３０／７０〜７０／３０の範囲が好ましく、より好ましくは４０／６０〜６０／４０の範囲である。 The side-by-side type composite fiber can have any fineness, cross-sectional shape, and composite form, but a single yarn fineness of about 1.5 to 5.0 dtex is appropriate. Furthermore, when the conjugate fiber of the present invention is a hollow conjugate fiber, it has high sensitivity to humidity and high bulkiness. Moreover, the area ratio in the cross section of the composite fiber of the polyamide component and the polyester component is preferably in the range of polyamide component / polyester component = 30/70 to 70/30, more preferably in the range of 40/60 to 60/40. .
前記の複合繊維を単糸数本のマルチフィラメントとした場合の、そのマルチフィラメントの総繊度は特に限定されないが、通常の衣料用素材として用いられる４０〜２００ｄｔｅｘの範囲で用いることができる。なお、必要に応じて交絡処理が施されていてもよい。 The total fineness of the multifilament when the composite fiber is a multifilament of several single yarns is not particularly limited, but can be used in the range of 40 to 200 dtex used as a normal clothing material. In addition, the confounding process may be performed as needed.
前記の複合繊維は潜在捲縮性能を有しており、後記のように、染色加工等で熱処理を受けると潜在捲縮性能が発現する。そして吸湿時に、ポリアミド成分が膨潤、伸張し、ポリエステル成分はほとんど長さ変化を起こさないため、捲縮率が向上する（捲縮繊維Ａの見かけの長さが短くなる。）。一方、乾燥時にはポリアミド成分が収縮し、ポリエステル成分はほとんど長さ変化を起こさないため、捲縮率が低下する（捲縮繊維Ａの見かけの長さが長くなる。）。 The composite fiber has a latent crimping performance, and the latent crimping performance is exhibited when it is subjected to heat treatment such as dyeing as described later. When the moisture is absorbed, the polyamide component swells and stretches, and the polyester component hardly changes in length, so that the crimp rate is improved (the apparent length of the crimped fiber A is shortened). On the other hand, the polyamide component shrinks during drying, and the polyester component hardly changes in length, so that the crimp rate decreases (the apparent length of the crimped fiber A becomes longer).
前記の捲縮繊維Ａは、吸湿時に、容易に捲縮率が向上する上で、無撚糸、または３００Ｔ／ｍ以下の撚りが施された甘撚り糸であることが好ましい。特に、無撚糸であることが好ましい。強撚糸のように、強い撚りが付与されていると、吸湿時に捲縮率が向上しにくく好ましくない。なお、交絡数が２０〜６０ケ／m程度となるようにインターレース空気加工および／または通常の仮撚捲縮加工が施されていてもさしつかえない。 The crimped fiber A is preferably a non-twisted yarn or a sweet twisted yarn subjected to twisting of 300 T / m or less in order to easily improve the crimping rate upon moisture absorption. In particular, non-twisted yarn is preferable. When a strong twist is imparted like a strongly twisted yarn, it is difficult to improve the crimp rate during moisture absorption. It should be noted that interlaced air processing and / or normal false twist crimping may be performed so that the number of entanglements is about 20 to 60 pieces / m.
本発明の織編物において、前記の捲縮繊維Ａが織編物重量に対して１０重量％以上含まれていることが好ましい。織編物が前記の捲縮繊維Ａのみで構成されていてもよいし、前記の捲縮繊維Ａ以外に、他の繊維として非捲縮または吸湿時に捲縮率が変化しない捲縮を有する繊維Ｂが含まれていてもよい。かかる繊維Ｂは１種類でもよいし、２種類以上であってもよい。ここで、「吸湿時に捲縮率が変化しない」とは、吸湿時における捲縮率ＨＣと乾燥時における捲縮率ＤＣとの差（ＨＣ−ＤＣ）が０．５％未満のものをいう。 In the woven or knitted fabric of the present invention, the crimped fiber A is preferably contained in an amount of 10% by weight or more based on the weight of the woven or knitted fabric. The woven or knitted fabric may be composed only of the above-described crimped fibers A, and other than the above-described crimped fibers A, fibers B having crimps that do not change the crimp rate during non-crimping or moisture absorption as other fibers. May be included. The fiber B may be one type or two or more types. Here, “the crimping rate does not change at the time of moisture absorption” means that the difference (HC−DC) between the crimping rate HC at the time of moisture absorption and the crimping rate DC at the time of drying is less than 0.5%.
かかる繊維Ｂとしては、ポリエチレンタレフタレート、ポリトリメチレンテレフタレート、ポリブチレンテレフタレート等のポリエステル、ナイロン６、ナイロン６６等のポリアミド、ポリエチレン、ポリプロピレン等のポリオレフィン、アクリル、パラ型もしくはメタ型アラミド、およびそれらの変性合成繊維、天然繊維、再生繊維、半合成繊維、ポリウレタン系弾性糸、非吸水性ポリエーテルエステル系弾性糸、吸水性ポリエーテルエステル系弾性糸など衣料に適した繊維であれば自由に選択できる。なかでも、吸湿時の寸法安定性や、前記捲縮繊維Ａとの相性（混繊性、交編・交織性、染色性）の点で、ポリエチレンテレフタレート、ポリプロピレンテレフタレート、ポリブチレンタレフタレートや、これらに前記共重合成分が共重合された変性ポリエステルからなるポリエステル繊維が好適である。また、繊維Ｂが、ポリウレタン系弾性糸、非吸水性ポリエーテルエステル系弾性糸、吸水性ポリエーテルエステル系弾性糸などの破断伸度３００％以上の弾性繊維であると、弾性繊維の弾性回復性能を利用して織編物の密度を上げ、乾燥時の通気性を下げることができ好ましい。例えば、弾性繊維を伸長させた状態で織編物を製編織すると、弾性繊維の弾性回復作用により収縮するため織編物の密度が向上する。また、かかる繊維Ｂの単糸繊度、単糸数（フィラメント数）としては特に限定されないが、織編物の吸水性を高め、吸湿時に通気性を性能よく下げる上で、単糸繊度０．１〜５ｄｔｅｘ（より好ましくは１ｄｔｅｘ以下、さらに好ましくは０．１〜１ｄｔｅｘ）、単糸数１〜２００本（より好ましくは３０本以上、さらに好ましくは３０〜１００本）の範囲内であることが好ましい。特に、単糸繊度１ｄｔｅｘ以下かつ単糸数３０本以上のマルチフィラメントが好ましい。また、交絡数が２０〜６０ケ／m程度となるようにインターレース空気加工および／または、捲縮率が５〜４０％となるよう通常の仮撚捲縮加工が施されていてもさしつかえない。 Examples of such fibers B include polyesters such as polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyamides such as nylon 6 and nylon 66, polyolefins such as polyethylene and polypropylene, acrylic, para-type or meta-type aramids, and the like. Any fiber suitable for clothing such as modified synthetic fiber, natural fiber, regenerated fiber, semi-synthetic fiber, polyurethane elastic yarn, non-water-absorbing polyether ester elastic yarn, water-absorbing polyether ester elastic yarn can be freely selected. . Among these, polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate, and the like in terms of dimensional stability at the time of moisture absorption and compatibility with the above-described crimped fiber A (mixing property, knitting / weaving property, dyeability) Polyester fibers made of a modified polyester obtained by copolymerizing the above copolymerizable components are preferred. Further, when the fiber B is an elastic fiber having a breaking elongation of 300% or more, such as a polyurethane-based elastic yarn, a non-water-absorbing polyether ester-based elastic yarn, or a water-absorbing polyether ester-based elastic yarn, the elastic fiber has an elastic recovery performance. Can be used to increase the density of the woven or knitted fabric and to reduce the air permeability during drying. For example, when a knitted or knitted fabric is knitted and woven in a state where elastic fibers are stretched, the density of the woven or knitted fabric is improved because the elastic fibers contract by the elastic recovery action. Further, the single yarn fineness and the number of single yarns (number of filaments) of the fiber B are not particularly limited, but the single yarn fineness is 0.1 to 5 dtex in order to increase the water absorption of the woven or knitted fabric and to reduce the air permeability when absorbing moisture. (More preferably 1 dtex or less, more preferably 0.1 to 1 dtex) and the number of single yarns 1 to 200 (more preferably 30 or more, still more preferably 30 to 100) are preferable. In particular, a multifilament having a single yarn fineness of 1 dtex or less and a single yarn number of 30 or more is preferable. In addition, interlaced air processing and / or normal false twist crimping may be performed so that the number of entanglements is about 20 to 60 / m and / or the crimp rate is 5 to 40%.
本発明の織編物において、織編物の構造としては、その織編組織、層数は特に限定されるものではない。例えば、平織、綾織、サテンなどの織組織や、天竺、スムース、フライス、鹿の子、そえ糸編、デンビー、ハーフなどの編組織が好適に例示されるが、これらに限定されるものではない。層数も単層でもよいし、２層以上の多層であってもよい。 In the woven or knitted fabric of the present invention, the woven or knitted fabric structure and the number of layers are not particularly limited. For example, woven structures such as plain weave, twill weave, and satin, and knitted structures such as tenshi, smooth, milling, kanoko, knitting yarn, denby, and half are preferably exemplified, but not limited thereto. The number of layers may be a single layer or a multilayer of two or more layers.
本発明の織編物において、前記の吸湿時に捲縮率が向上する捲縮繊維Ａと、非捲縮または吸湿時に捲縮率が変化しない捲縮を有する繊維Ｂとが含まれる場合の、前記捲縮繊維Ａと繊維Ｂの配置の好ましい実施態様について下記に説明する。 In the woven or knitted fabric of the present invention, the above-described crimped case in which the crimped fiber A whose crimping rate is improved at the time of moisture absorption and the fiber B having crimps that are not crimped or do not change at the time of moisture absorption are included. The preferable embodiment of arrangement | positioning of the shortened fiber A and the fiber B is demonstrated below.
まず、実施態様（１）において、前記捲縮繊維Ａと繊維Ｂとが引き揃えられて、織物の経糸および／または緯糸、または編物に配されている。かかる構造では、吸湿時に捲縮繊維Ａのみかけ長さが短くなるため、織編物の密度が向上し（空隙率が低下し）通気性が低下する。 First, in the embodiment (1), the crimped fibers A and the fibers B are drawn and arranged on a warp and / or a weft or a knitted fabric. In such a structure, the apparent length of the crimped fiber A is shortened at the time of moisture absorption, so that the density of the woven or knitted fabric is improved (the porosity is lowered) and the air permeability is lowered.
次に、実施態様（２）において、前記捲縮繊維Ａと繊維Ｂとが織編物の構成糸条として、両者が交互に配されている。その際、捲縮繊維Ａと繊維Ｂとが１本交互、複数本交互、１本：複数本交互、複数本：１本交互、これらの組合せなどいずれの配置であってもよい。かかる構造では、吸湿時に捲縮繊維Ａのみかけ長さが短くなるため、織編物の密度が向上し（空隙率が低下し）通気性が低下する。 Next, in the embodiment (2), the crimped fibers A and the fibers B are alternately arranged as constituent yarns of the woven or knitted fabric. At this time, the crimped fibers A and the fibers B may be arranged in an alternate manner, such as one alternating, plural alternating, one: plural alternating, plural: one alternating, or a combination thereof. In such a structure, the apparent length of the crimped fiber A is shortened at the time of moisture absorption, so that the density of the woven or knitted fabric is improved (the porosity is lowered) and the air permeability is lowered.
次に、実施態様（３）において、前記捲縮繊維Ａと繊維Ｂとが、捲縮繊維Ａが芯部に位置しかつ繊維Ｂが鞘部に位置する芯鞘型複合糸として織編物に含まれる。かかる構造では、吸湿時に捲縮繊維Ａのみかけ長さが短くなるため、織編物の密度が向上し（空隙率が低下し）通気性が低下する。 Next, in the embodiment (3), the crimped fiber A and the fiber B are included in the woven or knitted fabric as a core-sheath type composite yarn in which the crimped fiber A is located in the core and the fiber B is located in the sheath. It is. In such a structure, the apparent length of the crimped fiber A is shortened at the time of moisture absorption, so that the density of the woven or knitted fabric is improved (the porosity is lowered) and the air permeability is lowered.
次に、実施態様（４）において、織編物が２層以上の多層構造を有する多層構造織編物であって、少なくとも１層において該層を構成する総繊維重量のうち３０重量％以上が前記捲縮繊維Ａである。かかる構造では、吸湿時に捲縮繊維Ａのみかけ長さが短くなるため、織編物の密度が向上し（空隙率が低下し）通気性が低下する。 Next, in the embodiment (4), the woven or knitted fabric is a multilayered woven or knitted fabric having a multilayer structure of two or more layers, and at least one layer accounts for 30% by weight or more of the total fiber weight constituting the layer. It is a contracted fiber A. In such a structure, the apparent length of the crimped fiber A is shortened at the time of moisture absorption, so that the density of the woven or knitted fabric is improved (the porosity is lowered) and the air permeability is lowered.
本発明の織編物は、例えば下記の製造方法によって容易に得ることができる。
まず、すなわち、前記のポリアミド成分とポリエステル成分とをサイドバイサイド型に複合紡糸する。その際、例えば、特開２０００−１４４５１８号公報に記載されているような、高粘度成分側と低粘度成分側の吐出孔を分離し、かつ高粘度側の吐出線速度を小さくした（吐出断面積を大きくした）紡糸口金を用い、高粘度側吐出孔に溶融ポリエステルを通過させ低粘度側吐出孔側に溶融ポリアミドを通過させて接合させ、冷却固化させる方法によって紡糸糸条を得ることができる。なお本発明においては、この際に紡糸口金を適切に設計する事により、サイドバイサイド型の中空複合繊維としても良い。紡糸して得られた糸条は、一旦巻き取った後これを延伸して更に必要に応じて熱処理を行う、いわゆる別延方式のほか、未延伸糸を一旦巻き取らないで延伸して更に必要に応じて熱処理を行う、いわゆる直延方式のどちらの方法も採用することができる。上記紡糸における紡糸速度としては、例えば通常採用されている１０００〜３５００ｍ／分程度の紡糸速度のものを採用することができる。また、延伸、熱処理は、延伸後の切断伸度が１０〜６０％、通常は２０〜４５％程度になるように条件を設定するのが、捲縮の発現、製織編性などから好ましい。
The woven or knitted fabric of the present invention can be easily obtained, for example, by the following production method.
First, the above-mentioned polyamide component and polyester component are composite-spun into a side-by-side type. At that time, for example, as described in JP-A-2000-144518, the discharge holes on the high-viscosity component side and the low-viscosity component side are separated, and the discharge linear velocity on the high-viscosity side is reduced (discharge interruption). A spun yarn can be obtained by using a spinneret with a larger area and passing the molten polyester through the high-viscosity side discharge holes and passing the molten polyamide through the low-viscosity side discharge holes and joining them together to cool and solidify them. . In the present invention, a side-by-side hollow composite fiber may be formed by appropriately designing the spinneret at this time. In addition to the so-called separate rolling method, the yarn obtained by spinning is once wound up and then stretched and further heat treated as necessary. Further, it is necessary to stretch the undrawn yarn without winding it once. Either of the so-called direct extension methods, in which heat treatment is performed according to the above, can be employed. As the spinning speed in the above spinning, for example, a spinning speed of about 1000 to 3500 m / min which is usually employed can be adopted. In addition, in the stretching and heat treatment, it is preferable in view of crimping, weaving and knitting, and the like to set conditions so that the cut elongation after stretching is about 10 to 60%, usually about 20 to 45%.
次いで、前記複合繊維単独で用いるか、または前記複合繊維と、非捲縮または吸湿時に捲縮率が変化しない繊維Ｂとを同時に用いて織編物を織編成した後、染色加工を施し、染色加工の際の熱により前記複合繊維の潜在捲縮を発現させる（捲縮繊維Ａとする）。
ここで、織編物を織編成する際、織編組織は特に限定されず、前述のものを適宜選定することができる。
Next, the composite fiber is used alone, or the woven / knitted fabric is knitted using the composite fiber and the fiber B that does not change the crimp rate at the time of non-crimping or moisture absorption, and then a dyeing process is performed. The latent crimp of the composite fiber is expressed by the heat during the process (referred to as crimped fiber A).
Here, when weaving the knitted or knitted fabric, the woven or knitted structure is not particularly limited, and the above-mentioned ones can be appropriately selected.
前記染色加工の温度としては１００〜１４０℃（より好ましくは１１０〜１３５℃）、時間としてはトップ温度のキープ時間が５〜４０分の範囲内であることが好ましい。かかる条件で、織編物に染色加工を施すことにより、前記複合繊維は、ポリエステル成分とポリアミド成分との熱収縮差により捲縮を発現する。 The dyeing temperature is preferably 100 to 140 ° C. (more preferably 110 to 135 ° C.), and the time is preferably the top temperature keeping time within a range of 5 to 40 minutes. By applying a dyeing process to the woven or knitted fabric under such conditions, the composite fiber develops crimp due to a difference in thermal shrinkage between the polyester component and the polyamide component.
染色加工が施された織編物には、通常、乾熱ファイナルセットが施される。その際、乾熱ファイナルセットの温度としては１２０〜２００℃（より好ましくは１４０〜１８０℃）、時間としては１〜３分の範囲内であることが好ましい。かかる、乾熱ファイナルセットの温度が１２０℃よりも低いと、染色加工時に発生したシワが残り易く、また、仕上がり製品の寸法安定性が悪くなるおそれがある。逆に、該乾熱ファイナルセットの温度が２００℃よりも高いと、染色加工の際に発現した複合繊維の捲縮が低下したり、繊維が硬化し生地の風合いが硬くなるおそれがある。 A dry heat final set is usually applied to the woven or knitted fabric subjected to the dyeing process. At that time, the temperature of the dry heat final set is preferably 120 to 200 ° C. (more preferably 140 to 180 ° C.), and the time is preferably within a range of 1 to 3 minutes. When the temperature of the dry heat final set is lower than 120 ° C., wrinkles generated during the dyeing process are likely to remain, and the dimensional stability of the finished product may be deteriorated. On the other hand, if the temperature of the dry heat final set is higher than 200 ° C., the crimp of the composite fiber developed during the dyeing process may be reduced, or the fiber may be cured and the texture of the fabric may be hardened.
かくして得られた織編物において、乾燥時の通気性を小さくして防風性や耐漏水性を高める上で織編物が下記に定義するカバーファクターＣＦが２０００〜４５００の範囲内の織物であるか、４０ウエール／２．５４ｃｍ以上（より好ましくは、５０ウエール／２．５４ｃｍ以上）かつ５０コース／２．５４ｃｍ以上（より好ましくは、６０コース／２．５４ｃｍ以上）の編物であることが好ましい。
ＣＦ＝（ＤＷｐ／１．１）１／２×ＭＷｐ＋（ＤＷｆ／１．１）１／２×ＭＷｆ
ただし、ＤＷｐは経糸総繊度（ｄｔｅｘ）、ＭＷｐは経糸織密度（本／２．５４ｃｍ）、ＤＷｆは緯糸総繊度（ｄｔｅｘ）、ＭＷｆは緯糸織密度（本／２．５４ｃｍ）である。
In the woven or knitted fabric thus obtained, the woven or knitted fabric is a woven fabric having a cover factor CF as defined below in the range of 2000 to 4500 in order to reduce the air permeability at the time of drying and increase the windproof property and water leakage resistance. A knitted fabric of 40 wales / 2.54 cm or more (more preferably 50 wales / 2.54 cm or more) and 50 courses / 2.54 cm or more (more preferably 60 courses / 2.54 cm or more) is preferable.
CF = (DWp / 1.1) 1/2 × MWp + (DWf / 1.1) 1/2 × MWf
However, DWp is the total warp fineness (dtex), MWp is the warp weave density (main / 2.54 cm), DWf is the total weft fineness (dtex), and MWf is the weft weave density (main / 2.54 cm).
また、織編物にさらに加熱加圧加工（カレンダー加工）や撥水加工を施すと、乾燥時の通気性が小さくなり防風性や耐漏水性が高まり好ましい。さらに、常法のアルカリ減量加工、吸水加工、起毛加工、紫外線遮蔽あるいは抗菌剤、消臭剤、防虫剤、蓄光剤、再帰反射剤、マイナスイオン発生剤等の機能を付与する各種加工を付加適用してもよい。 Further, it is preferable to subject the woven or knitted fabric to heat pressure processing (calendar processing) or water repellent processing, because air permeability during drying is reduced and windproof property and water leakage resistance are increased. In addition, various processes that provide functions such as conventional alkali weight loss processing, water absorption processing, brushed processing, UV shielding or antibacterial agents, deodorants, insect repellents, phosphorescent agents, retroreflective agents, and negative ion generators are additionally applied. May be.
かくして得られた織編物において、織編物中に吸湿時に捲縮率が向上する（みかけ長さが短くなる。）繊維が含まれているので、吸湿時に織編物の密度が向上し（空隙率が低下し）通気性が低下する。一方、乾燥時には織編物の密度が低下し（空隙率が向上し）通気性が向上する。 In the woven or knitted fabric thus obtained, since the woven or knitted fabric contains fibers that improve the crimp rate when absorbing moisture (the apparent length is shortened), the density of the woven or knitted fabric improves when absorbing moisture (the porosity is reduced). Reduced) and air permeability decreases. On the other hand, at the time of drying, the density of the woven or knitted fabric is reduced (the porosity is improved) and the air permeability is improved.
その際、乾燥時における織編物の通気性が５０ｃｃ／ｃｍ２／ｓ以下（好ましくは４０ｃｃ／ｃｍ２／ｓ以下）であることが好ましい。また、下記式で定義する、吸湿時における織編物の通気性低下率が１０％以上（好ましくは３０％以上、より好ましくは３５％以上）であることが好ましい。
通気性低下率（％）＝（ＡＰＤ−ＡＰＨ）／ＡＰＤ×１００
ただし、ＡＰＤは乾燥時における織編物の通気性（ｃｃ／ｃｍ２／ｓ）であり、ＡＰＨは吸湿時における織編物の通気性（ｃｃ／ｃｍ２／ｓ）である。
At that time, the air permeability of the woven or knitted fabric during drying is preferably 50 cc / cm 2 / s or less (preferably 40 cc / cm 2 / s or less). Moreover, it is preferable that the air permeability reduction rate of the knitted or knitted fabric at the time of moisture absorption defined by the following formula is 10% or more (preferably 30% or more, more preferably 35% or more).
Air permeability reduction rate (%) = (APD−APH) / APD × 100
However, APD is the air permeability (cc / cm 2 / s) of the woven or knitted fabric at the time of drying, and APH is the air permeability (cc / cm 2 / s) of the woven or knitted fabric at the time of moisture absorption.
また、本発明の織編物は、吸湿時に織編密度が向上するため優れた耐漏水性を有する。その際、織編物の漏水性が２０００ｃｃ以下であることが好ましい。
ただし、漏水性はＪＩＳ Ｌ １０９２、６．３（雨試験A法）のブンデスマン雨試験装置を用いて、総水量７L／ｍｉｎに設定し１０分間の漏水量を測定するものとする。
In addition, the woven or knitted fabric of the present invention has excellent water leakage resistance because the woven / knitted density is improved upon moisture absorption. At that time, the water leakage of the woven or knitted fabric is preferably 2000 cc or less.
However, the water leakage shall be set to a total water volume of 7 L / min using a Bundesman rain test device of JIS L 1092, 6.3 (Rain Test A Method), and the amount of water leaked for 10 minutes shall be measured.
また、本発明によれば、前記の織編物を用いてなる、アウター用衣料、スポーツ用衣料、およびインナー用衣料からなる群より選択される繊維製品が提供される。かかる繊維製品には前記の織編物が含まれ、吸湿時に通気性が低下するので、かかる繊維製品を着用すると、雨や雪が繊維製品にかかった際に繊維製品の保温性が向上したり、耐漏水性が向上するという効果が得られる。 According to the present invention, there is also provided a textile product selected from the group consisting of an outer garment, a sports garment, and an inner garment using the woven or knitted fabric. Such textile products include the woven or knitted fabric described above, and the air permeability decreases when moisture is absorbed. Therefore, wearing such textile products improves the heat retention of the textile product when rain or snow hits the textile product, The effect of improving water leakage is obtained.
以下、実施例をあげて本発明を詳細に説明するが、本発明はこれらによって何ら限定されるものではない。なお、実施例中の各物性は下記の方法により測定したものである。 EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated in detail, this invention is not limited at all by these. In addition, each physical property in an Example is measured with the following method.
＜固有粘度（ＩＶ）＞
ポリエチレンテレフタレートについては、サンプルを一定量計量し、ｏ−クロロフェノールを溶媒に用いて、常法に従って３５℃にて求めた。ナイロン６については、同様にフェノール／テトラクロロエタンの等質量混合溶媒を用いて、３０℃にて測定を行った。
<Intrinsic viscosity (IV)>
For polyethylene terephthalate, a certain amount of the sample was weighed and obtained at 35 ° C. according to a conventional method using o-chlorophenol as a solvent. Nylon 6 was similarly measured at 30 ° C. using an equal mass mixed solvent of phenol / tetrachloroethane.
＜数平均分子量＞
両末端にカルボキシル基を有する数平均分子量５００〜５，０００のポリアミド（ａ）部分及びビスフェノール類のエチレンオキサイド付加物（ｂ）部分の数平均分子量は測定サンプルを重トリフルオロ酢酸／重クロロホルムの等質量の混合溶媒に溶解してＮＭＲを測定した。その測定結果から、それぞれ部分の繰り返し単位を特定し、その結果から数平均分子量を求めた。
<Number average molecular weight>
The number average molecular weight of the polyamide (a) part having a carboxyl group at both ends and a number average molecular weight of 500 to 5,000 and the ethylene oxide adduct (b) part of a bisphenol is measured with a sample such as heavy trifluoroacetic acid / deuterated chloroform. NMR was measured by dissolving in a mixed solvent of mass. From the measurement results, the repeating unit of each part was specified, and the number average molecular weight was determined from the results.
＜ポリエーテルエステルアミドの重量比率＞
複合繊維製造時にギヤポンプによる条件を調整することによって制御する事ができるが、複合繊維を形成するポリアミド部分、ポリエステル部分を（７）に記載の方法に準じてＮＭＲ測定を行うことによっても、その結果を解析することによりポリアミド成分中又はポリエステル成分中のポリエーテルエステルアミドの重量比率を算出する事ができる。
<Weight ratio of polyetheresteramide>
Although it can be controlled by adjusting the conditions by the gear pump during the production of the composite fiber, the results are also obtained by performing NMR measurement according to the method described in (7) on the polyamide part and the polyester part forming the composite fiber. Can be calculated to calculate the weight ratio of the polyether ester amide in the polyamide component or the polyester component.
＜織編物中の糸の捲縮率＞
織編物を温度２０℃、湿度６５％ＲＨの雰囲気中に２４時間放置した後、該織編物から、３０ｃｍ×３０ｃｍの小片を裁断する（ｎ数＝５）。続いて、各々の小片から、吸湿により捲縮量が変化する糸（変性ポリエステルとポリアミドのサイドバイサイド型複合繊維）を取り出し、４９／５０ｍＮ×９×トータルテックス（１００ｍｇ／ｄｅ）の荷重をかけて糸長Ｌ０を測定し、除重１分後４９／５０ｍＮ×９×４／１０００×トータルテックス（０．４ｍｇ／ｄｅ）の荷重をかけて糸長Ｌ１を測定する。更にこの糸を温度２０℃、湿度９０％ＲＨの雰囲気中に２４時間放置した後、４９／５０ｍＮ×９×トータルテックス（１００ｍｇ／ｄｅ）の荷重をかけて糸長Ｌ０’を測定し、除重１分後４９／５０ｍＮ×９×４／１０００×トータルテックス（０．４ｍｇ／ｄｅ）の荷重をかけて糸長Ｌ１’を測定する。
以上の測定数値から下記の計算式にて、乾燥時の捲縮率（ＤＣ）、吸湿時の捲縮率（ＨＣ）および吸湿時と乾燥時との捲縮率差を算出する。
乾燥時の捲縮率DC（％）＝｛（Ｌ０−Ｌ１）／Ｌ０｝×１００
吸湿時の捲縮率HC（％）＝｛（Ｌ０’−Ｌ１’）／Ｌ０’｝×１００
吸湿時と乾燥時との捲縮率差（％）＝ＨＣ−ＤＣ
<Crimping rate of yarn in woven / knitted fabric>
After leaving the woven or knitted fabric in an atmosphere of a temperature of 20 ° C. and a humidity of 65% RH for 24 hours, a 30 cm × 30 cm piece is cut from the woven or knitted fabric (n number = 5). Subsequently, a yarn (the side-by-side type composite fiber of modified polyester and polyamide) whose crimp amount changes due to moisture absorption is taken out from each small piece, and a yarn of 49/50 mN × 9 × total tex (100 mg / de) is applied. The length L0 is measured, and after 1 minute of dewetting, a load of 49/50 mN × 9 × 4/1000 × total tex (0.4 mg / de) is applied to measure the yarn length L1. Further, this yarn was allowed to stand in an atmosphere of a temperature of 20 ° C. and a humidity of 90% RH for 24 hours, and then the yarn length L0 ′ was measured by applying a load of 49/50 mN × 9 × total tex (100 mg / de) to remove the weight. One minute later, the yarn length L1 ′ is measured by applying a load of 49/50 mN × 9 × 4/1000 × total tex (0.4 mg / de).
From the above measured values, the following formulas are used to calculate the crimp rate (DC) during drying, the crimp rate (HC) during moisture absorption, and the crimp rate difference between moisture absorption and drying.
Crimp rate during drying DC (%) = {(L0−L1) / L0} × 100
Crimp rate at the time of moisture absorption HC (%) = {(L0′−L1 ′) / L0 ′} × 100
Difference in crimp rate between moisture absorption and drying (%) = HC-DC
＜通気性＞
ＪＩＳ Ｌ １０９６−１９９８、６．２７．１、Ａ法（フラジール形通気性試験機法）により温度２０℃、湿度６５％ＲＨに２４時間放置し調湿した編地と、温度２０℃、湿度９０％ＲＨに２４時間放置し調湿した編地について、それぞれ通気性を測定（ｎ数＝５）し、次式により通気性低下率を算出した。
通気性低下率（％）＝（ＡＰＤ−ＡＰＨ）／ＡＰＤ×１００
ただし、ＡＰＤは温度２０℃、湿度６５％ＲＨにおける通気性であり、ＡＰＨは温度２０℃、湿度９０％ＲＨにおける通気性である。
<Breathability>
A knitted fabric that was allowed to stand for 24 hours at a temperature of 20 ° C. and a humidity of 65% RH according to JIS L 1096-1998, 6.27.1, Method A (Fragile-type air permeability tester method), and a temperature of 20 ° C. and a humidity of 90 The air permeability of each knitted fabric that was allowed to stand for 24 hours in% RH and measured the humidity was measured (n number = 5), and the air permeability reduction rate was calculated by the following formula.
Air permeability reduction rate (%) = (APD−APH) / APD × 100
However, APD is air permeable at a temperature of 20 ° C. and a humidity of 65% RH, and APH is air permeable at a temperature of 20 ° C. and a humidity of 90% RH.
＜漏水性＞
ＪＩＳ Ｌ １０９２、６．３（雨試験A法）のブンデスマン雨試験装置を用いて、総水量７L／ｍｉｎに設定し１０分間の漏水量を測定する
<Water leakage>
Using a Bundesmann rain test device of JIS L 1092, 6.3 (Rain test A method), set the total water volume to 7 L / min and measure the water leakage for 10 minutes.
＜仮撚捲縮加工糸の捲縮率＞
供試フィラメント糸条を、周長が１．１２５ｍの検尺機のまわりに巻きつけて、乾繊度が３３３３ｄｔｅｘのかせを調製した。
前記かせを、スケール板の吊り釘に懸垂して、その下部分に５．９ｃＮ（６ｇｒ）の初荷重を付加し、さらに５８８ｃＮ（６００ｇｒ）の荷重を付加したときのかせの長さＬ０を測定する。その後、直ちに、前記かせから荷重を除き、スケール板の吊り釘から外し、このかせを沸騰水中に３０分間浸漬して、捲縮を発現させる。沸騰水処理後のかせを沸騰水から取り出し、かせに含まれる水分をろ紙により吸収除去し、室温において２４時間風乾する。この風乾されたかせを、スケール板の吊り釘に懸垂し、その下部分に、５８８ｃＮ（６００ｇｒ）の荷重をかけ、１分後にかせの長さＬ１ａを測定し、その後かせから荷重を外し、１分後にかせの長さＬ２ａを測定する。供試フィラメント糸条の捲縮率（ＣＰ）を、下記式により算出する。
ＣＰ（％）＝（（Ｌ１ａ−Ｌ２ａ）／Ｌ０）×１００
<Crimp rate of false twisted yarn>
The test filament yarn was wound around a measuring machine having a circumference of 1.125 m to prepare a skein having a dryness of 3333 dtex.
The skein is suspended from a hanging nail of the scale plate, an initial load of 5.9 cN (6 gr) is applied to the lower part thereof, and a skein length L0 when a load of 588 cN (600 gr) is further applied is measured. To do. Immediately thereafter, the load is removed from the skein, the scale plate is removed from the hanging nail, and the skein is immersed in boiling water for 30 minutes to develop crimps. The skein after the boiling water treatment is taken out from the boiling water, the moisture contained in the skein is absorbed and removed by a filter paper, and air-dried at room temperature for 24 hours. This air-dried skein is suspended from a hanging nail of the scale plate, a load of 588 cN (600 gr) is applied to the lower part, and after 1 minute, the length L1a of the skein is measured, and then the load is removed from the skein. The skein length L2a is measured later. The crimp rate (CP) of the test filament yarn is calculated by the following formula.
CP (%) = ((L1a−L2a) / L0) × 100
［実施例１］
固有粘度（ＩＶ）が１．１のナイロン６（Ｎｙ６）と、ポリエーテルエステルアミド（ポリアミド（ａ）部分の数平均分子量１５００、エチレンオキサイド付加物（ｂ）部分の数平均分子量２０００、相対粘度２．２）を４０重量％添加したイソフタル酸共重合ポリエチレンテレフタレートチップ（イソフタル酸共重合比率０．５モル％、ＩＶ＝０．６５）とを常法により、紡糸温度２９０℃、紡糸速度１０００ｍ／ｍｉｎで紡糸し、ついで巻き取ることなく延伸温度６０℃、延伸倍率２．５倍で延伸し、さらに１３０℃で熱セットして糸状を得た。ナイロン６とポリエーテルエステルアミドをブレンドしたポリエチレンテレフタレートとの重量比が５０：５０でサイドバイサイド型に接合された、５６ｄｔｅｘ／２４ｆｉｌの複合繊維を得た。
[Example 1]
Nylon 6 (Ny6) having an intrinsic viscosity (IV) of 1.1 and polyether ester amide (polyamide (a) part number average molecular weight 1500, ethylene oxide adduct (b) part number average molecular weight 2000, relative viscosity 2 .2) and an isophthalic acid copolymerized polyethylene terephthalate chip (isophthalic acid copolymerization ratio 0.5 mol%, IV = 0.65) added in a conventional manner at a spinning temperature of 290 ° C. and a spinning speed of 1000 m / min. Then, without winding, the film was drawn at a drawing temperature of 60 ° C. and a draw ratio of 2.5 times, and further heat-set at 130 ° C. to obtain a yarn. A composite fiber of 56 dtex / 24 fil was obtained, in which the weight ratio of nylon 6 and polyethylene terephthalate blended with polyether ester amide was 50:50 and bonded side-by-side.
次に、３６ゲージのトリコット編機を用いて、フロント筬に上記複合繊維（沸水処理されておらず、捲縮は発現していない。無撚糸）をフルセットし、バック筬に３３ｄｔｅｘ／３６ｆｉｌのポリエチレンテレフタレート仮撚捲縮加工糸（捲縮率２０％）をフルセットし、フロント１０−２３、バック１２−１０のハーフ組織で、機上コース数９６コース／２．５４ｃｍの編条件にてトリコット編地を編成した。得られた編地を１３０℃、キープ時間１５分で染色加工し、複合繊維の潜在捲縮性能を顕在化させた後、１００℃の温度で乾燥させ、次いで１６０℃、時間１分で乾熱ファイナルセットを行った。得られた編地の評価結果は表１に示す通りで、乾燥時の通気性３９ｃｃ／ｃｍ２／ｓ、吸湿時の通気性２２ｃｃ／ｃｍ２／ｓ、通気性の低下率４４％と吸湿時に通気性が低下し、耐漏水性も１１９０ｃｃで撥水加工無しの編地としては耐漏水性が高い編地が得られた。該編地において密度は７０ウエール／２．５４ｃｍ、７９コース／２．５４ｃｍであった。また、編地から抜き取った複合繊維において、乾燥時の捲縮率ＤＣが６４％、吸湿時の捲縮率ＨＣが７７％、乾燥時と湿潤時の捲縮率差（ＨＣ−ＤＣ）が１３％であった。
次いで、該編物を用いてＴシャツ（スポーツ用衣料）を得て着用したところ、雨があたった時に通気性が低下し、快適であった。
Next, using a 36-gauge tricot knitting machine, fully set the above-mentioned composite fiber (not treated with boiling water and no crimps; untwisted yarn) on the front heel and 33 dtex / 36 fil on the back heel. Full set of polyethylene terephthalate false twisted crimped yarn (crimp rate 20%), half-structure of front 10-23, back 12-10, tricot under knitting conditions of 96 courses / 2.54cm on-machine course Knitted fabric. The resulting knitted fabric is dyed and processed at 130 ° C. for 15 minutes, revealing the latent crimp performance of the composite fiber, then dried at a temperature of 100 ° C., and then dry heat at 160 ° C. for 1 minute. The final set was done. The evaluation results of the obtained knitted fabric are as shown in Table 1. Air permeability at the time of drying 39 cc / cm 2 / s, air permeability at the time of moisture absorption 22 cc / cm 2 / s, rate of decrease in air permeability 44%, and at the time of moisture absorption A knitted fabric with high water leakage resistance was obtained as a knitted fabric with reduced air permeability and water leakage resistance of 1190 cc and no water repellency. In the knitted fabric, the density was 70 wales / 2.54 cm and 79 courses / 2.54 cm. Further, in the composite fiber extracted from the knitted fabric, the crimp rate DC at the time of drying is 64%, the crimp rate HC at the time of moisture absorption is 77%, and the crimp rate difference (HC-DC) between the dry time and the wet time is 13%. %Met.
Next, when the knitted fabric was used to obtain and wear a T-shirt (sports apparel), the breathability decreased when it was exposed to rain, and it was comfortable.
［実施例２］
実施例１において、編地を染色加工した後、フッ素樹脂系撥水加工処理液を用いてパデイング処理し、１００℃の温度で乾燥させた後、温度１６０℃、時間１分で乾熱ファイナルセットを施した後、ロールカレンダー（由利ロール（株）製）機にてローラー温度１６０℃、ニップ圧５８８Ｎ／ｃｍ（６０ｋｇｆ／ｃｍ）にて加熱加圧加工して得られた編地の評価結果を表１に示す。乾燥時の通気性８ｃｃ／ｃｍ２／ｓ、吸湿時の通気性５ｃｃ／ｃｍ２／ｓ、通気性の低下率３８％と吸湿時に通気性が低下し、耐漏水性も２７ｃｃ耐漏水性が非常に高い編地が得られた。また、編地から抜き取った複合繊維において、乾燥時の捲縮率ＤＣが６２％、吸湿時の捲縮率ＨＣが７３％、乾燥時と湿潤時の捲縮率差（ＨＣ−ＤＣ）が１１％であった。
[Example 2]
In Example 1, after dyeing the knitted fabric, padding using a fluororesin-based water repellent treatment liquid, drying at a temperature of 100 ° C., and then a dry heat final set at a temperature of 160 ° C. for 1 minute. After performing the above, the evaluation results of the knitted fabric obtained by heating and pressing with a roller calender (manufactured by Yuri Roll Co., Ltd.) at a roller temperature of 160 ° C. and a nip pressure of 588 N / cm (60 kgf / cm) Table 1 shows. Dry breathable 8cc / cm 2 / s, breathable 5cc / cm 2 / s at moisture absorption, air permeability at reduction rate of 38% and moisture breathable lowered, leak-proof water even 27cc leak-proof water very A high knitted fabric was obtained. Further, in the composite fiber extracted from the knitted fabric, the crimp ratio DC at the time of drying is 62%, the crimp ratio HC at the time of moisture absorption is 73%, and the difference in crimp ratio between the dry and wet conditions (HC-DC) is 11. %Met.
［実施例３］
３６ゲージのトリコット編機を用いて、フロント筬に実施例１で用いた３３ｄｔｅｘ／３６ｆｉｌのポリエチレンテレフタレート仮撚捲縮加工糸（捲縮率２０％）をフルセットし、バック筬に実施例１で用いた複合繊維５６ｄｔｅｘ／２４ｆｉｌをフルセットし、フロント１０−２３、バック１２−１０のハーフ組織で、機上コース数１０６コース／２．５４ｃｍの編条件にてトリコット編地を編成した。得られた編地を１３０℃、キープ時間１５分で染色加工し、複合繊維の潜在捲縮性能を顕在化させた後、１００℃の温度で乾燥させ、次いで１６０℃、時間１分で乾熱ファイナルセットを行った。得られた編地の評価結果は表１に示す通りで、乾燥時の通気性１７ｃｃ／ｃｍ２／ｓ、吸湿時の通気性１２ｃｃ／ｃｍ２／ｓ、通気性の低下率２９％と吸湿時に通気性が低下し、耐漏水性も１４７５ｃｃで撥水加工無しの編地としては耐漏水性が高い編地が得られた。また、編地から抜き取った複合繊維において、乾燥時の捲縮率ＤＣが６５％、吸湿時の捲縮率ＨＣが７９％、乾燥時と湿潤時の捲縮率差（ＨＣ−ＤＣ）が１４％であった。
[Example 3]
Using a 36-gauge tricot knitting machine, fully set the 33 dtex / 36 fil polyethylene terephthalate false twisted crimped yarn (crimp rate 20%) used in Example 1 on the front heel, and set the back heel in Example 1. The used composite fiber 56 dtex / 24 fil was fully set, and a tricot knitted fabric was knitted under a knitting condition of 106 courses / 2.54 cm on-machine course with a half structure of the front 10-23 and the back 12-10. The resulting knitted fabric is dyed and processed at 130 ° C. for 15 minutes, revealing the latent crimp performance of the composite fiber, then dried at a temperature of 100 ° C., and then dry heat at 160 ° C. for 1 minute. The final set was done. The evaluation results of the knitted fabric obtained are as shown in Table 1. Air permeability at the time of drying is 17 cc / cm 2 / s, air permeability at the time of moisture absorption is 12 cc / cm 2 / s, and the rate of decrease in air permeability is 29%. A knitted fabric with high water leakage resistance was obtained as a knitted fabric with reduced air permeability and water leakage resistance of 1475 cc and no water repellent finish. Further, in the composite fiber extracted from the knitted fabric, the crimp rate DC at the time of drying is 65%, the crimp rate HC at the time of moisture absorption is 79%, and the crimp rate difference (HC-DC) between the dry time and the wet time is 14%. %Met.
［実施例４］
実施例３において、編地を染色加工した後、フッ素樹脂系撥水加工処理液を用いてパデイング処理し、１００℃の温度で乾燥させた後、温度１６０℃、時間１分で乾熱ファイナルセットを施した後、ロールカレンダー（由利ロール（株）製）機にてローラー温度１６０℃、ニップ圧５８８Ｎ／ｃｍ（６０ｋｇｆ／ｃｍ）にて加熱加圧加工して得られた編地の評価結果を表１に示す。乾燥時の通気性３ｃｃ／ｃｍ２／ｓ、吸湿時の通気性２ｃｃ／ｃｍ２／ｓ、通気性の低下率３３％と吸湿時に通気性が低下し、耐漏水性も５ｃｃ耐漏水性が非常に高い編地が得られた。また、編地から抜き取った複合繊維において、乾燥時の捲縮率ＤＣが６１％、吸湿時の捲縮率ＨＣが７０％、乾燥時と湿潤時の捲縮率差（ＨＣ−ＤＣ）が９％であった。
[Example 4]
In Example 3, the knitted fabric was dyed, padded with a fluororesin-based water repellent treatment solution, dried at a temperature of 100 ° C., and then dried at a temperature of 160 ° C. for 1 minute. After performing the above, the evaluation results of the knitted fabric obtained by heating and pressing with a roller calender (manufactured by Yuri Roll Co., Ltd.) at a roller temperature of 160 ° C. and a nip pressure of 588 N / cm (60 kgf / cm) Table 1 shows. Breathability 3cc / cm 2 / s when dried, 2cc / cm 2 / s when breathing moisture, 33% reduction in breathability, breathability is lowered when absorbing moisture, and 5cc leak resistance is very good A high knitted fabric was obtained. Further, in the composite fiber extracted from the knitted fabric, the crimp rate DC at the time of drying is 61%, the crimp rate HC at the time of moisture absorption is 70%, and the crimp rate difference (HC-DC) between the dry time and the wet time is 9%. %Met.
［比較例１］
３６ゲージのトリコット編機を用いて、フロント筬に収縮率の異なる２種のポリエステルが５０：５０でサイドバイサイド型に接合された５６ｄｔｅｘ／２４ｆｉｌの捲縮複合繊維をフルセットし、バック筬に実施例１で用いた３３ｄｔｅｘ／３６ｆｉｌのポリエチレンテレフタレート仮撚捲縮加工糸（捲縮率２０％）をフルセットし、フロント１０−２３、バック１２−１０のハーフ組織で、機上コース数９６コース／２．５４ｃｍの編条件にてトリコット編地を編成した。得られた編地を１３０℃、キープ時間１５分で染色加工し、複合繊維の潜在捲縮性能を顕在化させた後、１００℃の温度で乾燥させ、次いで１６０℃、時間１分で乾熱ファイナルセットを行った。得られた編地の評価結果は表１に示す通りで、乾燥時の通気性４２ｃｃ／ｃｍ２／ｓ、吸湿時の通気性４１ｃｃ／ｃｍ２／ｓ、通気性の変化率２％と吸湿時に通気性はほとんど変化せず、耐漏水性も３２４０ｃｃと撥水加工無しの編地として通常レベルの耐漏水性の編地が得られた。また、編地から抜き取った複合繊維において、乾燥時の捲縮率ＤＣが５８％、吸湿時の捲縮率ＨＣが５８％、乾燥時と湿潤時の捲縮率差（ＨＣ−ＤＣ）が０％であった。
[Comparative Example 1]
Using a 36-gauge tricot knitting machine, a full set of 56 dtex / 24 fil crimped composite fibers in which two types of polyesters with different shrinkage ratios were joined in a side-by-side manner at the front side with a 50:50 example was applied to the back side. Fully set the 33 dtex / 36 fil polyethylene terephthalate false twisted crimped yarn (crimp rate 20%) used in No. 1, with a half structure of front 10-23 and back 12-10, 96 on-board courses / 2 Tricot knitted fabric was knitted under .54 cm knitting conditions. The resulting knitted fabric is dyed and processed at 130 ° C. for 15 minutes, revealing the latent crimp performance of the composite fiber, then dried at a temperature of 100 ° C., and then dry heat at 160 ° C. for 1 minute. The final set was done. The evaluation results of the obtained knitted fabric are as shown in Table 1. Air permeability at the time of drying 42 cc / cm 2 / s, air permeability at the time of moisture absorption 41 cc / cm 2 / s, change rate of air permeability 2%, and at the time of moisture absorption The air permeability hardly changed, and the water leakage resistance was 3240 cc, and a knitted fabric having a water leakage resistance of a normal level was obtained as a knitted fabric without water repellent treatment. Further, in the composite fiber extracted from the knitted fabric, the crimp ratio DC at the time of drying is 58%, the crimp ratio HC at the time of moisture absorption is 58%, and the difference in crimp ratio between the dry and wet conditions (HC-DC) is 0. %Met.
［比較例２］
比較例１において、編地を染色加工した後、フッ素樹脂系撥水加工処理液を用いてパデイング処理し、１００℃の温度で乾燥させた後、温度１６０℃、時間１分で乾熱ファイナルセットを施した後、ロールカレンダー（由利ロール（株）製）機にてローラー温度１６０℃、ニップ圧６０ｋｇｆ／ｃｍにて加熱加圧加工して得られた編地の評価結果を表１に示す。乾燥時の通気性１４ｃｃ／ｃｍ２／ｓ、吸湿時の通気性１４ｃｃ／ｃｍ２／ｓ、通気性の低下率０％と吸湿時に通気性は変化せず、耐漏水性も１２０ｃｃと撥水加工品としては通常レベルの耐漏水性の編地が得られた。また、編地から抜き取った複合繊維において、乾燥時の捲縮率ＤＣが５６％、吸湿時の捲縮率ＨＣが５６％、乾燥時と湿潤時の捲縮率差（ＨＣ−ＤＣ）が０％であった。
[Comparative Example 2]
In Comparative Example 1, after dyeing the knitted fabric, padding using a fluororesin-based water repellent treatment liquid, drying at a temperature of 100 ° C., and then a dry heat final set at a temperature of 160 ° C. for 1 minute. Table 1 shows the evaluation results of the knitted fabric obtained by performing heat and pressure processing at a roller temperature of 160 ° C. and a nip pressure of 60 kgf / cm using a roll calender (manufactured by Yuri Roll Co., Ltd.). Breathability at the time of drying 14cc / cm 2 / s, breathability at the time of moisture absorption 14cc / cm 2 / s, rate of decrease in air permeability 0% As a product, a knitted fabric with a normal level of water leakage resistance was obtained. Further, in the composite fiber extracted from the knitted fabric, the crimp rate DC at the time of drying is 56%, the crimp rate HC at the time of moisture absorption is 56%, and the difference in crimp rate between the dry time and the wet state (HC-DC) is 0. %Met.
本発明によれば、吸湿時に捲縮率が向上する（みかけ長さが短くなる。）繊維を用いてなる、吸湿時に通気性が低下する織編物および該織編物を用いてなる繊維製品が提供される。かかる繊維製品を着用すると、降雨時や降雪時に通気性が低下することにより保温性が向上し、また、衣服内への水の浸入が抑制できるといった効果が得られる。 ADVANTAGE OF THE INVENTION According to this invention, the knitted fabric which uses a fiber which improves a crimp rate at the time of moisture absorption (apparent length becomes short), and air permeability falls at the time of moisture absorption, and a textile product using this woven fabric are provided. Is done. When such a textile product is worn, heat retention is improved by reducing the air permeability during rainfall or snowfall, and the effect that water can be prevented from entering the clothes can be obtained.
Claims (18)
（１）捲縮繊維Ａが、ポリエステル成分とポリアミド成分とがサイドバイサイド型に接合された複合繊維である。
（２）吸湿時における捲縮繊維Ａの捲縮率ＨＣと、乾燥時における捲縮繊維Ａの捲縮率ＤＣとの差（ＨＣ−ＤＣ）が０．５％以上である。
ただし、乾燥時とは、試料を温度２０℃、湿度６５％ＲＨ環境下に２４時間放置した後の状態であり、一方、吸湿時とは、試料を温度２０℃、湿度９０％ＲＨ環境下に２４時間放置した後の状態である。 A knitted or knitted fabric with reduced breathability upon moisture absorption, comprising crimped fibers A that simultaneously satisfy the following requirements (1) and (2):
(1) The crimped fiber A is a composite fiber in which a polyester component and a polyamide component are joined in a side-by-side manner.
(2) The difference (HC−DC) between the crimp rate HC of the crimped fiber A at the time of moisture absorption and the crimp rate DC of the crimped fiber A at the time of drying is 0.5% or more.
However, when dry, the sample is left for 24 hours in a temperature of 20 ° C. and a humidity of 65% RH. On the other hand, when moisture is absorbed, the sample is placed in a temperature of 20 ° C. and a humidity of 90% RH. This is the state after being left for 24 hours.
ＣＦ＝（ＤＷｐ／１．１）１／２×ＭＷｐ＋（ＤＷｆ／１．１）１／２×ＭＷｆ
ただし、ＤＷｐは経糸総繊度（ｄｔｅｘ）、ＭＷｐは経糸織密度（本／２．５４ｃｍ）、ＤＷｆは緯糸総繊度（ｄｔｅｘ）、ＭＷｆは緯糸織密度（本／２．５４ｃｍ）である。 The woven or knitted fabric having a reduced breathability upon moisture absorption according to any one of claims 1 to 10, wherein the woven or knitted fabric is a woven fabric having a cover factor CF defined below within a range of 2000 to 4500.
CF = (DWp / 1.1) 1/2 × MWp + (DWf / 1.1) 1/2 × MWf
However, DWp is the total warp fineness (dtex), MWp is the warp weave density (main / 2.54 cm), DWf is the total weft fineness (dtex), and MWf is the weft weave density (main / 2.54 cm).
通気性低下率（％）＝（ＡＰＤ−ＡＰＨ）／ＡＰＤ×１００
ただし、ＡＰＤは乾燥時における織編物の通気性（ｃｃ／ｃｍ２／ｓ）であり、ＡＰＨは吸湿時における織編物の通気性（ｃｃ／ｃｍ２／ｓ）である。 16. The knitted or knitted fabric having a reduced breathability when absorbing moisture according to any one of claims 1 to 15, wherein the rate of decrease in breathability of the woven or knitted fabric when absorbing moisture is defined by the following formula.
Air permeability reduction rate (%) = (APD−APH) / APD × 100
However, APD is the air permeability (cc / cm 2 / s) of the woven or knitted fabric at the time of drying, and APH is the air permeability (cc / cm 2 / s) of the woven or knitted fabric at the time of moisture absorption.
ただし、漏水性はＪＩＳ Ｌ １０９２、６．３（雨試験A法）のブンデスマン雨試験装置を用いて、総水量７L／ｍｉｎに設定し１０分間の漏水量を測定するものとする。 The knitted or knitted fabric having a reduced air permeability when absorbing moisture according to any one of claims 1 to 16, wherein the water leakage of the woven or knitted fabric is 2000 cc or less.
However, the water leakage shall be set to a total water volume of 7 L / min using a Bundesman rain test device of JIS L 1092, 6.3 (Rain Test A Method), and the amount of water leaked for 10 minutes shall be measured.
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| JPS5846118A (en) * | 1981-09-10 | 1983-03-17 | Teijin Ltd | Moisture-sensitive crimped composite fiber and its preparation |
| JP4213048B2 (en) * | 2003-07-29 | 2009-01-21 | 帝人ファイバー株式会社 | Woven and knitted fabrics with reduced porosity when wet |
| JP2006118062A (en) * | 2004-10-19 | 2006-05-11 | Teijin Fibers Ltd | Woven/knitted fabric reducing its porosity when wetted, and method for producing the same, and related textile product |
| JP2007321295A (en) * | 2006-06-01 | 2007-12-13 | Teijin Ltd | Crimped conjugated fiber |
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