JP2017210693A - Treatment agent for polyolefin-based synthetic fiber, aqueous liquid thereof, treatment method of polyolefin-based synthetic fiber, polyolefin-based synthetic fiber and thermal bond nonwoven fabric - Google Patents
Treatment agent for polyolefin-based synthetic fiber, aqueous liquid thereof, treatment method of polyolefin-based synthetic fiber, polyolefin-based synthetic fiber and thermal bond nonwoven fabric Download PDFInfo
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- JP2017210693A JP2017210693A JP2016103963A JP2016103963A JP2017210693A JP 2017210693 A JP2017210693 A JP 2017210693A JP 2016103963 A JP2016103963 A JP 2016103963A JP 2016103963 A JP2016103963 A JP 2016103963A JP 2017210693 A JP2017210693 A JP 2017210693A
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- Prior art keywords
- polyolefin
- synthetic fiber
- mass
- phosphate ester
- based synthetic
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- 239000012209 synthetic fiber Substances 0.000 title claims abstract description 107
- 229920002994 synthetic fiber Polymers 0.000 title claims abstract description 107
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 105
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 98
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 80
- 239000007788 liquid Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 35
- -1 alkyl phosphoric acid ester salt Chemical class 0.000 claims abstract description 162
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 22
- 150000007524 organic acids Chemical class 0.000 claims abstract description 14
- 229910019142 PO4 Inorganic materials 0.000 claims description 54
- 239000010452 phosphate Substances 0.000 claims description 54
- 229910052783 alkali metal Inorganic materials 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 14
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 13
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 12
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims description 10
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 7
- 150000001261 hydroxy acids Chemical class 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 5
- 230000002378 acidificating effect Effects 0.000 abstract description 3
- 239000004744 fabric Substances 0.000 abstract 1
- 238000011156 evaluation Methods 0.000 description 44
- 239000000835 fiber Substances 0.000 description 26
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 22
- 230000001143 conditioned effect Effects 0.000 description 18
- 238000012360 testing method Methods 0.000 description 16
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 14
- TVYOHSBZTDLHTH-UHFFFAOYSA-N 1-octacosoxyoctacosane Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCOCCCCCCCCCCCCCCCCCCCCCCCCCCCC TVYOHSBZTDLHTH-UHFFFAOYSA-N 0.000 description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 12
- 239000004698 Polyethylene Substances 0.000 description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 12
- 239000002131 composite material Substances 0.000 description 12
- 229920000573 polyethylene Polymers 0.000 description 12
- 229920000742 Cotton Polymers 0.000 description 10
- 230000002265 prevention Effects 0.000 description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- IRHTZOCLLONTOC-UHFFFAOYSA-N hexacosan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCO IRHTZOCLLONTOC-UHFFFAOYSA-N 0.000 description 8
- WRKCIHRWQZQBOL-UHFFFAOYSA-N octyl dihydrogen phosphate Chemical compound CCCCCCCCOP(O)(O)=O WRKCIHRWQZQBOL-UHFFFAOYSA-N 0.000 description 8
- 235000011007 phosphoric acid Nutrition 0.000 description 8
- 239000002504 physiological saline solution Substances 0.000 description 8
- 229920000728 polyester Polymers 0.000 description 8
- REZQBEBOWJAQKS-UHFFFAOYSA-N triacontan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCO REZQBEBOWJAQKS-UHFFFAOYSA-N 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000004310 lactic acid Substances 0.000 description 6
- 235000014655 lactic acid Nutrition 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 6
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 4
- 125000001931 aliphatic group Chemical group 0.000 description 4
- 235000015165 citric acid Nutrition 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 125000000524 functional group Chemical group 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000005342 ion exchange Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- CNNRPFQICPFDPO-UHFFFAOYSA-N octacosan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCO CNNRPFQICPFDPO-UHFFFAOYSA-N 0.000 description 4
- 230000000865 phosphorylative effect Effects 0.000 description 4
- 229920001451 polypropylene glycol Polymers 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 2
- VXFHUKLLDQWIFF-UHFFFAOYSA-N 1-hexacontoxyhexacontane Chemical compound C(CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC)OCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC VXFHUKLLDQWIFF-UHFFFAOYSA-N 0.000 description 2
- 229960002666 1-octacosanol Drugs 0.000 description 2
- HBXWUCXDUUJDRB-UHFFFAOYSA-N 1-octadecoxyoctadecane Chemical compound CCCCCCCCCCCCCCCCCCOCCCCCCCCCCCCCCCCCC HBXWUCXDUUJDRB-UHFFFAOYSA-N 0.000 description 2
- XSFDAOSPLREHPH-UHFFFAOYSA-N 1-tetracosoxytetracosane Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCOCCCCCCCCCCCCCCCCCCCCCCCC XSFDAOSPLREHPH-UHFFFAOYSA-N 0.000 description 2
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 229910004856 P—O—P Chemical group 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 2
- 150000001495 arsenic compounds Chemical class 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 150000005690 diesters Chemical group 0.000 description 2
- ASQKVSNYBNCYBV-UHFFFAOYSA-L dipotassium;butyl phosphate Chemical compound [K+].[K+].CCCCOP([O-])([O-])=O ASQKVSNYBNCYBV-UHFFFAOYSA-L 0.000 description 2
- WZPRPGQIPUCXQE-UHFFFAOYSA-L dipotassium;decyl phosphate Chemical compound [K+].[K+].CCCCCCCCCCOP([O-])([O-])=O WZPRPGQIPUCXQE-UHFFFAOYSA-L 0.000 description 2
- RYEOCIUXFIZXNC-UHFFFAOYSA-L dipotassium;docosyl phosphate Chemical compound [K+].[K+].CCCCCCCCCCCCCCCCCCCCCCOP([O-])([O-])=O RYEOCIUXFIZXNC-UHFFFAOYSA-L 0.000 description 2
- GWTCIAGIKURVBJ-UHFFFAOYSA-L dipotassium;dodecyl phosphate Chemical compound [K+].[K+].CCCCCCCCCCCCOP([O-])([O-])=O GWTCIAGIKURVBJ-UHFFFAOYSA-L 0.000 description 2
- SVQIBPUYKCOPNT-UHFFFAOYSA-L dipotassium;hexyl phosphate Chemical compound [K+].[K+].CCCCCCOP([O-])([O-])=O SVQIBPUYKCOPNT-UHFFFAOYSA-L 0.000 description 2
- BWIIMRFKCNBWEH-UHFFFAOYSA-L dipotassium;octadecyl phosphate Chemical compound [K+].[K+].CCCCCCCCCCCCCCCCCCOP([O-])([O-])=O BWIIMRFKCNBWEH-UHFFFAOYSA-L 0.000 description 2
- LPZZAIMVFFLHQU-UHFFFAOYSA-L dipotassium;octyl phosphate Chemical compound [K+].[K+].CCCCCCCCOP([O-])([O-])=O LPZZAIMVFFLHQU-UHFFFAOYSA-L 0.000 description 2
- VMLOTJYFCJTIPN-UHFFFAOYSA-L dipotassium;propyl phosphate Chemical compound [K+].[K+].CCCOP([O-])([O-])=O VMLOTJYFCJTIPN-UHFFFAOYSA-L 0.000 description 2
- IOBIPCGFZMYXKF-UHFFFAOYSA-L dipotassium;tetracosyl phosphate Chemical compound [K+].[K+].CCCCCCCCCCCCCCCCCCCCCCCCOP([O-])([O-])=O IOBIPCGFZMYXKF-UHFFFAOYSA-L 0.000 description 2
- WUIJQWLICXXNNE-UHFFFAOYSA-L disodium;octyl phosphate Chemical compound [Na+].[Na+].CCCCCCCCOP([O-])([O-])=O WUIJQWLICXXNNE-UHFFFAOYSA-L 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- NOPFSRXAKWQILS-UHFFFAOYSA-N docosan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCO NOPFSRXAKWQILS-UHFFFAOYSA-N 0.000 description 2
- 229960000735 docosanol Drugs 0.000 description 2
- TVACALAUIQMRDF-UHFFFAOYSA-N dodecyl dihydrogen phosphate Chemical compound CCCCCCCCCCCCOP(O)(O)=O TVACALAUIQMRDF-UHFFFAOYSA-N 0.000 description 2
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 description 2
- 229940093920 gynecological arsenic compound Drugs 0.000 description 2
- 239000008233 hard water Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000001630 malic acid Substances 0.000 description 2
- 235000011090 malic acid Nutrition 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 125000006353 oxyethylene group Chemical group 0.000 description 2
- 150000003016 phosphoric acids Chemical class 0.000 description 2
- 229920001083 polybutene Polymers 0.000 description 2
- RLEFZEWKMQQZOA-UHFFFAOYSA-M potassium;octanoate Chemical compound [K+].CCCCCCCC([O-])=O RLEFZEWKMQQZOA-UHFFFAOYSA-M 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000008234 soft water Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000003460 sulfonic acids Chemical class 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000011975 tartaric acid Substances 0.000 description 2
- 235000002906 tartaric acid Nutrition 0.000 description 2
- TYWMIZZBOVGFOV-UHFFFAOYSA-N tetracosan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCO TYWMIZZBOVGFOV-UHFFFAOYSA-N 0.000 description 2
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
- D06M13/282—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing phosphorus
- D06M13/292—Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/007—Addition polymers
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/165—Ethers
- D06M13/17—Polyoxyalkyleneglycol ethers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/207—Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
- D06M13/248—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing sulfur
- D06M13/256—Sulfonated compounds esters thereof, e.g. sultones
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/53—Polyethers
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
本発明は、ポリオレフィン系合成繊維用処理剤、その水性液、ポリオレフィン系合成繊維の処理方法、ポリオレフィン系合成繊維及びサーマルボンド不織布に関する。近年、紙おむつや生理用ナプキン等の衛生材料に使用される不織布には、高度の親水性や肌と同じ弱酸性であることが要求され、かかる不織布の製造に用いられる処理剤にも、得られる不織布にそのような特性を付与できるものであることが要求されている。本発明はかかる要求に応えるポリオレフィン系合成繊維用処理剤、かかる処理剤の水性液、かかる水性液を用いるポリオレフィン系合成繊維の処理方法、かかる処理剤が付着しているポリオレフィン系合成繊維及びかかるポリオレフィン系合成繊維製のサーマルボンド不織布に関する。 The present invention relates to a treatment agent for polyolefin synthetic fibers, an aqueous liquid thereof, a method for treating polyolefin synthetic fibers, a polyolefin synthetic fiber, and a thermal bond nonwoven fabric. In recent years, nonwoven fabrics used for sanitary materials such as paper diapers and sanitary napkins are required to have high hydrophilicity and the same weak acidity as the skin, and can also be obtained as a treatment agent used in the production of such nonwoven fabrics. It is required that the nonwoven fabric can be provided with such characteristics. The present invention is a polyolefin synthetic fiber treatment agent that meets such requirements, an aqueous liquid of such a treatment agent, a method of treating a polyolefin synthetic fiber using such an aqueous liquid, a polyolefin synthetic fiber to which such a treatment agent is attached, and such a polyolefin. The present invention relates to a thermal bond nonwoven fabric made of a synthetic fiber.
従来、合成繊維用処理剤として、アルキルリン酸エステル塩を含有して成るもの(例えば、特許文献1参照)、特定の官能基及び特定の分子量を有するポリオキシアルキレン変性シリコーンと特定の界面活性剤とを含有して成るもの(例えば、特許文献2参照)、特定の官能基を有するノニオン界面活性剤とアルキルリン酸エステル塩とを含有して成るもの(例えば、特許文献3参照)等が提案されている。しかし、これら従来の合成繊維用処理剤には、これらをポリオレフィン系合成繊維に用いても、良好な制電性やカード通過性を維持しつつ、得られる不織布に高度の親水性を付与することができず、また不織布を弱酸性に改質することができないという問題がある。 Conventionally, as treatment agents for synthetic fibers, those containing an alkyl phosphate ester salt (see, for example, Patent Document 1), polyoxyalkylene-modified silicones having a specific functional group and a specific molecular weight, and a specific surfactant (For example, see Patent Document 2), those containing a nonionic surfactant having a specific functional group and an alkyl phosphate ester salt (for example, see Patent Document 3), etc. Has been. However, these conventional synthetic fiber treatment agents impart high hydrophilicity to the resulting nonwoven fabric while maintaining good antistatic properties and card passage properties even when they are used in polyolefin synthetic fibers. In addition, there is a problem that the nonwoven fabric cannot be modified to be weakly acidic.
本発明が解決しようとする課題は、良好な制電性やカード通過性を維持しつつ、得られる不織布に高度の親水性を付与することができ、また不織布を弱酸性化することができるポリオレフィン系合成繊維用処理剤、かかる処理剤の水性液、かかる水性液を用いるポリオレフィン系合成繊維の処理方法、かかる処理剤が付着しているポリオレフィン系合成繊維及びかかるポリオレフィン系合成繊維製のサーマルボンド不織布を提供する処にある。 The problem to be solved by the present invention is a polyolefin capable of imparting a high degree of hydrophilicity to the resulting nonwoven fabric while maintaining good antistatic properties and card passing properties, and capable of weakly acidifying the nonwoven fabric. -Based synthetic fiber treatment agent, aqueous solution of such treatment agent, method of treating polyolefin-based synthetic fiber using such aqueous solution, polyolefin-based synthetic fiber to which such a treatment agent is adhered, and thermal bond nonwoven fabric made of such polyolefin-based synthetic fiber It is in place to provide.
本発明者らは、前記の課題を解決するべく研究した結果、特定の4成分を特定の割合で含有して成るポリオレフィン系合成繊維用処理剤を用いることが正しく好適であることを見出した。 As a result of researches to solve the above-mentioned problems, the present inventors have found that it is correctly and suitably used a treatment agent for polyolefin-based synthetic fibers containing specific four components in a specific ratio.
すなわち本発明は、下記の有機酸を0.1〜20質量%、下記のアルキルリン酸エステル塩Bを10〜50質量%、下記のアルキルリン酸エステル塩Cを10〜50質量%及び下記のポリオキシアルキレン誘導体を20〜75質量%(合計100質量%)の割合で含有して成るポリオレフィン系合成繊維用処理剤に係る。また本発明は、かかる処理剤の水性液、かかる水性液を用いる合成繊維の処理方法、かかる処理剤が付着しているポリオレフィン系合成繊維及びかかるポリオレフィン系合成繊維製のサーマルボンド不織布に係る。 That is, the present invention includes 0.1 to 20% by mass of the following organic acid, 10 to 50% by mass of the following alkyl phosphate ester salt B, 10 to 50% by mass of the following alkyl phosphate ester salt C, and the following: The present invention relates to a treatment agent for polyolefin-based synthetic fibers comprising a polyoxyalkylene derivative in a proportion of 20 to 75% by mass (total 100% by mass). The present invention also relates to an aqueous liquid of such a treatment agent, a synthetic fiber treatment method using such an aqueous liquid, a polyolefin synthetic fiber to which such a treatment agent is attached, and a thermal bond nonwoven fabric made of such a polyolefin synthetic fiber.
有機酸:有機ヒドロキシ酸、有機スルホン酸及び有機リン酸から選ばれる少なくとも一つ Organic acid: at least one selected from organic hydroxy acid, organic sulfonic acid and organic phosphoric acid
アルキルリン酸エステル塩B:炭素数4〜11のアルキルリン酸エステル塩 Alkyl phosphate ester salt B: alkyl phosphate ester salt having 4 to 11 carbon atoms
アルキルリン酸エステル塩C:炭素数12〜22のアルキルリン酸エステル塩 Alkyl phosphate ester salt C: C12-22 alkyl phosphate ester salt
ポリオキシアルキレン誘導体:炭素数22〜50の1価脂肪族アルコール1モルに対し、エチレンオキシド及び/又はプロピレンオキシドが合計で5〜100モルの割合で付加している化合物 Polyoxyalkylene derivative: Compound in which ethylene oxide and / or propylene oxide is added in a ratio of 5 to 100 mol in total with respect to 1 mol of monohydric aliphatic alcohol having 22 to 50 carbon atoms
先ず、本発明に係るポリオレフィン系合成繊維用処理剤(以下、本発明の処理剤という)について説明する。本発明の処理剤は、前記したように特定の4成分を特定の割合で含有して成るものである。 First, the processing agent for polyolefin synthetic fibers according to the present invention (hereinafter referred to as the processing agent of the present invention) will be described. As described above, the treatment agent of the present invention comprises four specific components in a specific ratio.
本発明の処理剤に供する有機酸は、有機ヒドロキシ酸、有機スルホン酸及び有機リン酸から選ばれる少なくとも一つである。具体的に有機ヒドロキシ酸としては、グリコール酸、乳酸、リンゴ酸、酒石酸、クエン酸等が挙げられ、有機スルホン酸としては、パラトルエンスルホン酸、ドデシルベンゼンスルホン酸等が挙げられ、有機リン酸としては、オクチルリン酸、ドデシルリン酸等が挙げられる。 The organic acid used for the treating agent of the present invention is at least one selected from organic hydroxy acids, organic sulfonic acids, and organic phosphoric acids. Specific examples of the organic hydroxy acid include glycolic acid, lactic acid, malic acid, tartaric acid, and citric acid. Examples of the organic sulfonic acid include p-toluene sulfonic acid and dodecylbenzene sulfonic acid. Include octyl phosphoric acid, dodecyl phosphoric acid and the like.
本発明の処理剤に供するアルキルリン酸エステル塩Bは炭素数4〜11のアルキルリン酸エステル塩であり、その具体例としては、ブチルリン酸エステル塩、ヘキシルリン酸エステル塩、オクチルリン酸エステル塩、ノニルリン酸エステル塩、デシルリン酸エステル塩等が挙げられるが、なかでもヘキシルリン酸エステルアルカリ金属塩、オクチルリン酸エステルアルカリ金属塩等の炭素数6〜8のアルカリ金属塩が好ましい。 The alkyl phosphate ester salt B used for the treating agent of the present invention is an alkyl phosphate ester salt having 4 to 11 carbon atoms, and specific examples thereof include butyl phosphate ester salt, hexyl phosphate ester salt, octyl phosphate ester salt, Nonyl phosphate ester salts, decyl phosphate ester salts and the like can be mentioned, among which alkali metal salts having 6 to 8 carbon atoms such as hexyl phosphate alkali metal salts and octyl phosphate alkali metal salts are preferable.
本発明の処理剤に供するアルキルリン酸エステル塩Cは炭素数12〜22のアルキルリン酸エステル塩であり、その具体例としては、ドデシルリン酸エステル塩、トリデシルリン酸エステル塩、イソトリデシルリン酸エステル塩、テトラデシルリン酸エステル塩、ヘキサデシルリン酸エステル塩、オクタデシルリン酸エステル塩、オクタデセニルリン酸エステル塩、イソオクタデシルリン酸エステル塩、ドコシルリン酸エステル塩等が挙げられるが、なかでもドデシルリン酸エステルアルカリ金属塩、トリデシルリン酸エステルアルカリ金属塩、イソトリデシルリン酸エステルアルカリ金属塩、テトラデシルリン酸エステルアルカリ金属塩、ヘキサデシルリン酸エステルアルカリ金属塩、オクタデシルリン酸エステルアルカリ金属塩、オクタデセニルリン酸エステルアルカリ金属塩、イソオクタデシルリン酸エステルアルカリ金属塩等の炭素数12〜18のアルカリ金属塩が好ましい。 The alkyl phosphate ester salt C used in the treatment agent of the present invention is an alkyl phosphate ester salt having 12 to 22 carbon atoms, and specific examples thereof include dodecyl phosphate ester salt, tridecyl phosphate ester salt, isotridecyl phosphate ester. Salt, tetradecyl phosphate ester, hexadecyl phosphate ester, octadecyl phosphate ester salt, octadecenyl phosphate ester salt, isooctadecyl phosphate ester salt, docosyl phosphate ester salt, etc. Acid ester alkali metal salt, tridecyl phosphate alkali metal salt, isotridecyl phosphate alkali metal salt, tetradecyl phosphate alkali metal salt, hexadecyl phosphate alkali metal salt, octadecyl phosphate alkali metal salt, octa Senirurin ester alkali metal salts, alkali metal salts of 12 to 18 carbon atoms such as iso-octadecyl phosphate ester alkali metal salts are preferred.
アルキルリン酸エステル塩B及びアルキルリン酸エステル塩Cは、脂肪族1価アルコールと無水リン酸に代表されるリン酸化剤との反応、及びその後のアルカリ金属水酸化物との中和反応により合成されるが、用いる脂肪族1価アルコールは単一物でも又は2種以上の混合物でもよい。また一般にアルキルリン酸エステルアルカリ金属塩は、モノエステル、ジエステル及びP−O−P結合を含むポリ体からなる混合物であるが、その構成比率については特に制限されない。更に合成原料に含まれる不純物については、一般的な原料規格内であれば許容される。これには例えば水酸化カリウムに含まれるナトリウム成分、リン酸化剤の一つである無水リン酸に含まれる重金属やヒ素化合物等の各種不純物及び副生物が該当する。 Alkyl phosphate ester salt B and alkyl phosphate ester salt C are synthesized by a reaction between an aliphatic monohydric alcohol and a phosphorylating agent represented by anhydrous phosphoric acid, and a subsequent neutralization reaction with an alkali metal hydroxide. However, the aliphatic monohydric alcohol used may be a single substance or a mixture of two or more kinds. In general, the alkali metal salt of an alkyl phosphate ester is a mixture composed of a polyester containing a monoester, a diester and a P—O—P bond, but the constituent ratio is not particularly limited. Further, the impurities contained in the synthetic raw material are allowed if they are within general raw material specifications. This includes, for example, various impurities and by-products such as sodium components contained in potassium hydroxide and heavy metals and arsenic compounds contained in anhydrous phosphoric acid which is one of phosphorylating agents.
本発明の処理剤に供するポリオキシアルキレン誘導体は、炭素数22〜50の1価脂肪族アルコール1モルに対し、エチレンオキシド及び/又はプロピレンオキシドが合計で5〜100モルの割合で付加している化合物である。具体的にポリオキシアルキレン誘導体としては、ドコシルアルコール、テトラコシルアルコール、ヘキサコシルアルコール、オクタコシルアルコール、トリアコンチルアルコール、テトラコンチルアルコール、ドテトラコンチルアルコール、ペンタコンチルアルコール等の炭素数22〜50の1価脂肪族アルコール1モルに対し、エチレンオキシド及び/又はプロピレンオキシドが合計で5〜100モルの割合で付加しているもの等が挙げられるが、なかでもヘキサコシルアルコール、オクタコシルアルコール、トリアコンチルアルコール、テトラコンチルアルコール等の炭素数26〜40の1価脂肪族アルコール1モルに対し、エチレンオキシド及び/又はプロピレンオキシドが合計で8〜60モルの割合で付加しているものが好ましい。かかるポリオキシアルキレン誘導体においてエチレンオキシドやプロピレンオキシドの付加形態としては特に制限はなく、ブロック付加、ランダム付加のいずれでもよい。 The polyoxyalkylene derivative used for the treating agent of the present invention is a compound in which ethylene oxide and / or propylene oxide is added in a ratio of 5 to 100 mol in total with respect to 1 mol of a monovalent aliphatic alcohol having 22 to 50 carbon atoms. It is. Specific examples of the polyoxyalkylene derivative include carbons such as docosyl alcohol, tetracosyl alcohol, hexacosyl alcohol, octacosyl alcohol, triacontyl alcohol, tetracontyl alcohol, dotetracontyl alcohol, and pentacontyl alcohol. Examples include those in which ethylene oxide and / or propylene oxide are added at a total ratio of 5 to 100 moles with respect to 1 mole of monohydric aliphatic alcohol having a number of 22 to 50, among which hexacosyl alcohol, octa Ethylene oxide and / or propylene oxide is added at a ratio of 8 to 60 mol in total with respect to 1 mol of monohydric aliphatic alcohol having 26 to 40 carbon atoms such as cosyl alcohol, triacontyl alcohol, tetracontyl alcohol and the like. Is preferred. In such polyoxyalkylene derivatives, the addition form of ethylene oxide or propylene oxide is not particularly limited, and may be either block addition or random addition.
本発明の処理剤は、前記の有機酸を0.1〜20質量%、前記のアルキルリン酸エステル塩Bを10〜50質量%、前記のアルキルリン酸エステル塩Cを10〜50質量%及び前記のポリオキシアルキレン誘導体を20〜75質量%(合計100質量%)の割合で含有して成るものであるが、有機酸を0.3〜18質量%、アルキルリン酸エステル塩Bを15〜45質量%、アルキルリン酸エステル塩Cを15〜45質量%及びポリオキシアルキレン誘導体を25〜65質量%(合計100質量%)の割合で含有して成るものが好ましい。 The treating agent of the present invention comprises 0.1 to 20% by mass of the organic acid, 10 to 50% by mass of the alkyl phosphate ester salt B, 10 to 50% by mass of the alkyl phosphate ester salt C, and The polyoxyalkylene derivative is contained in a proportion of 20 to 75% by mass (total of 100% by mass). The organic acid is 0.3 to 18% by mass, and the alkyl phosphate ester salt B is 15 to 15%. It is preferable to contain 45% by mass, 15 to 45% by mass of alkyl phosphate ester salt C and 25 to 65% by mass (total 100% by mass) of polyoxyalkylene derivatives.
次に本発明の処理剤の水性液(以下、本発明の水性液という)について説明する。本発明の水性液は、本発明の処理剤100質量部に対し、水を400〜100000質量部の割合で含有して成る水性液であって、pHが3〜7である水性液である。 Next, the aqueous liquid of the treating agent of the present invention (hereinafter referred to as the aqueous liquid of the present invention) will be described. The aqueous liquid of the present invention is an aqueous liquid containing 400 to 100000 parts by mass of water with respect to 100 parts by mass of the treatment agent of the present invention, and having an pH of 3 to 7.
本発明の水性液に供する水としては、イオン交換水、蒸留水、硬水、軟水等が挙げられるが、なかでもイオン交換水、蒸留水等が好ましい。 Examples of the water used in the aqueous liquid of the present invention include ion exchange water, distilled water, hard water, soft water, and the like. Among these, ion exchange water, distilled water, and the like are preferable.
次に本発明に係るポリオレフィン系合成繊維の処理方法(以下、本発明の処理方法という)について説明する。本発明の処理方法は、本発明の水性液を、ポリオレフィン系合成繊維に対し、本発明の処理剤として0.1〜1質量%となるよう付着させる方法である。付着方法としては公知の方法が適用でき、これには例えば、ローラータッチ法、スプレー法、シャワー法、浸漬法等が挙げられる。本発明の水性液を付着させる工程としては、紡糸工程、延伸工程、仕上げ工程のいずれの工程でもよい。本発明の水性液をポリオレフィン系合成繊維に付着させるに際しては、合目的的に、本発明の処理剤以外の他の成分を併用することもできるが、かかる他の成分の併用は可及的に少量とするのが好ましい。 Next, a method for treating a synthetic polyolefin fiber according to the present invention (hereinafter referred to as the treatment method of the present invention) will be described. The treatment method of the present invention is a method in which the aqueous liquid of the present invention is attached to a polyolefin-based synthetic fiber so as to be 0.1 to 1% by mass as the treatment agent of the present invention. As the adhesion method, a known method can be applied, and examples thereof include a roller touch method, a spray method, a shower method, and an immersion method. The step of attaching the aqueous liquid of the present invention may be any of a spinning step, a drawing step, and a finishing step. In adhering the aqueous liquid of the present invention to the polyolefin-based synthetic fiber, other components other than the treatment agent of the present invention can be used in combination for the purpose, but the combined use of such other components is as much as possible. A small amount is preferable.
次に本発明に係るポリオレフィン系合成繊維(以下、本発明の合成繊維という)について説明する。本発明の合成繊維は、本発明の処理剤が付着しているポリオレフィン系合成繊維である。 Next, the polyolefin synthetic fiber according to the present invention (hereinafter referred to as the synthetic fiber of the present invention) will be described. The synthetic fiber of the present invention is a polyolefin-based synthetic fiber to which the treatment agent of the present invention is attached.
ポリオレフィン系合成繊維としては、ポリエチレン繊維、ポリプロピレン繊維、ポリブテン繊維等のポリオレフィン系繊維、芯鞘構造の複合繊維であって芯、鞘部のいずれか又は両者がポリオレフィン系繊維である複合繊維、例えば鞘部がポリエチレン繊維であるポリエチレン/ポリプロピレン複合繊維、ポリエチレン/ポリエステル複合繊維、若しくはサイドバイサイド構造を有するポリエチレン/ポリプロピレン複合繊維、ポリエチレン/ポリエステル複合繊維等が挙げられる。 Examples of the polyolefin-based synthetic fibers include polyolefin fibers such as polyethylene fibers, polypropylene fibers, and polybutene fibers, and composite fibers having a core-sheath structure in which either the core or the sheath portion or both are polyolefin-based fibers, for example, sheath Examples thereof include polyethylene / polypropylene composite fiber, polyethylene / polyester composite fiber, polyethylene / polypropylene composite fiber having a side-by-side structure, and polyethylene / polyester composite fiber.
最後に本発明のサーマルボンド不織布(以下、本発明の不織布という)について説明する。本発明の不織布は、本発明の処理剤が付着しているサーマルボンド不織布である。 Finally, the thermal bond nonwoven fabric of the present invention (hereinafter referred to as the nonwoven fabric of the present invention) will be described. The nonwoven fabric of the present invention is a thermal bond nonwoven fabric to which the treatment agent of the present invention is attached.
サーマルボンド不織布としては、エアスルー、ポイントボンド工程で得られる不織布等を用いることができるが、なかでもエアスルーによるものが好ましい。 As the thermal bond nonwoven fabric, air through, a nonwoven fabric obtained by a point bond process, and the like can be used.
本発明によると、良好な制電性やカード通過性を維持しつつ、得られる不織布に高度の親水性を付与することができ、また不織布を弱酸性化することができるという効果がある。 According to the present invention, there is an effect that a high degree of hydrophilicity can be imparted to the obtained nonwoven fabric while maintaining good antistatic property and card passing property, and the nonwoven fabric can be weakly acidified.
以下、本発明の構成及び効果をより具体的にするため、実施例等を挙げるが、本発明がこれらの実施例に限定されるというものではない。尚、以下の実施例及び比較例において、部は質量部を、また%は質量%を意味する。 Hereinafter, in order to make the configuration and effects of the present invention more specific, examples and the like will be described. However, the present invention is not limited to these examples. In the following Examples and Comparative Examples, “part” means “part by mass” and “%” means “% by mass”.
試験区分1(ポリオレフィン系合成繊維用処理剤の調製)
・実施例1
表1に記載した乳酸(A−1)の90%水性液2.8g、アルキルリン酸エステル塩(B−1)15.0g、アルキルリン酸エステル塩(C−1)15.0g及びポリオキシアルキレン誘導体(D−1)17.5gを混合し、949.7gの水を加え、撹拌して水性分散液とし、実施例1のポリオレフィン系合成繊維用処理剤の5%水性液を得た。
Test category 1 (Preparation of polyolefin synthetic fiber treatment agent)
Example 1
2.8 g of 90% aqueous solution of lactic acid (A-1) listed in Table 1, 15.0 g of alkyl phosphate ester salt (B-1), 15.0 g of alkyl phosphate ester salt (C-1) and polyoxy 17.5 g of the alkylene derivative (D-1) was mixed, 949.7 g of water was added, and the mixture was stirred to obtain an aqueous dispersion to obtain a 5% aqueous liquid of the polyolefin synthetic fiber treating agent of Example 1.
・実施例2〜13及び比較例1〜7
実施例1の場合と同様にして、実施例2〜13及び比較例1〜7のポリオレフィン系合成繊維用処理剤の5%水性液を調製した。以上の各例で調製したポリオレフィン系合成繊維用処理剤の内容を表1にまとめて示した。
-Examples 2-13 and Comparative Examples 1-7
In the same manner as in Example 1, 5% aqueous liquids of the treatment agents for polyolefin synthetic fibers of Examples 2 to 13 and Comparative Examples 1 to 7 were prepared. The contents of the polyolefin-based synthetic fiber treating agents prepared in the above examples are summarized in Table 1.
表1において、
A−1:乳酸
A−2:クエン酸
A−3:パラトルエンスルホン酸
A−4:オクチルリン酸
In Table 1,
A-1: Lactic acid A-2: Citric acid A-3: Paratoluenesulfonic acid A-4: Octyl phosphoric acid
B−1:ヘキシルリン酸エステルカリウム塩
B−2:オクチルリン酸エステルカリウム塩
B−3:オクチルリン酸エステルナトリウム塩
B−4:ブチルリン酸エステルカリウム塩
B−5:デシルリン酸エステルカリウム塩
Rb−1:プロピルリン酸エステルカリウム塩
B-1: Hexyl phosphate potassium salt B-2: Octyl phosphate potassium salt B-3: Octyl phosphate sodium salt B-4: Butyl phosphate potassium salt B-5: Decyl phosphate potassium salt Rb-1 : Propyl phosphate potassium salt
C−1:ドデシルリン酸エステルカリウム塩
C−2:オクタデシルリン酸エステルカリウム塩
C−3:ドコシルリン酸エステルカリウム塩
Rc−1:テトラコシルリン酸エステルカリウム塩
C-1: Dodecyl phosphate potassium salt C-2: Octadecyl phosphate potassium salt C-3: Docosyl phosphate potassium salt Rc-1: Tetracosyl phosphate potassium salt
D−1:ポリオキシエチレン(10モル)オクタコシルエーテル
D−2:ポリオキシエチレン(25モル)ポリオキシプロピレン(25モル)オクタコシルエーテル
D−3:ポリオキシエチレン(35モル)オクタトリアコンチルエーテル
D−4:ポリオキシエチレン(10モル)テトラコシルエーテル
D−5:ポリオキシエチレン(10モル)オクタテトラコンチルエーテル
D−6:ポリオキシエチレン(6モル)オクタコシルエーテル
D−7:ポリオキシエチレン(80モル)オクタコシルエーテル
Rd−1:ポリオキシエチレン(10モル)オクタデシルエーテル
Rd−2:ポリオキシエチレン(10モル)ヘキサコンチルエーテル
Rd−3:ポリオキシエチレン(3モル)オクタコシルエーテル
Rd−4:ポリオキシエチレン(60モル)ポリオキシプロピレン(60モル)オクタコシルエーテル
D-1: Polyoxyethylene (10 mol) octacosyl ether D-2: Polyoxyethylene (25 mol) polyoxypropylene (25 mol) octacosyl ether D-3: Polyoxyethylene (35 mol) octatriacontyl ether D-4: Polyoxyethylene (10 mol) tetracosyl ether D-5: Polyoxyethylene (10 mol) octatetracontyl ether D-6: Polyoxyethylene (6 mol) octacosyl ether D-7: Polyoxyethylene (80 mol) octacosyl ether Rd-1: polyoxyethylene (10 mol) octadecyl ether Rd-2: polyoxyethylene (10 mol) hexacontyl ether Rd-3: polyoxyethylene (3 mol) octacosyl ether Rd- 4: Polyoxyethylene (60 mol) polyoxypropylene (60 mol) octacosyl ether
試験区分2(ポリオレフィン系合成繊維用処理剤の付着と評価)
・ポリオレフィン系合成繊維処理剤の付着
試験区分1で調製したポリオレフィン系合成繊維用処理剤の水性液を、鞘部がポリエチレンであり、芯部がポリエステルであるポリオレフィン系複合繊維(繊度2.2デシテックス、繊維長51mm)に、表2に記載の付着量となるようスプレー給油法で付着させ、80℃の熱風乾燥機で1時間乾燥して、処理済みポリオレフィン系合成繊維処理綿を得た。但し、実施例8においては、試験区分1で調製したポリオレフィン系合成繊維用処理剤100部に対し他の成分(E−1:変性基としてオキシプロピレン単位/オキシエチレン単位=50/50(質量%)の割合で構成されたポリオキシアルキレン基を全体の50質量%有する平均分子量5000のポリオキシアルキレン変性シリコーン)を10部の割合で併用した水性液をスプレー給油し、また実施例9においては、試験区分1で調製したポリオレフィン系合成繊維用処理剤100部に対し他の成分(E−2:オクチル酸カリウム塩)を10部の割合で併用した水性液をスプレー給油し、更に比較例5においては、試験区分1で調製したポリオレフィン系合成繊維用処理剤100部に対し前記の他の成分(E−1)を25部の割合で併用した水性液をスプレー給油した。
Test Category 2 (Adhesion and evaluation of polyolefin synthetic fiber treatment agent)
-Adhesion of polyolefin synthetic fiber treatment agent Aqueous liquid of polyolefin synthetic fiber treatment agent prepared in Test Category 1 is a polyolefin composite fiber whose sheath is polyethylene and whose core is polyester (fineness 2.2 decitex). To a fiber length of 51 mm) by a spray oiling method so as to have an adhesion amount shown in Table 2, and dried for 1 hour with a hot air dryer at 80 ° C. to obtain a treated polyolefin synthetic fiber-treated cotton. However, in Example 8, other components (E-1: oxypropylene unit / oxyethylene unit as a modifying group = 50/50 (mass%) with respect to 100 parts of the polyolefin synthetic fiber treating agent prepared in Test Category 1 ) And sprayed with an aqueous liquid in which a polyoxyalkylene-modified silicone having an average molecular weight of 5000 having a polyoxyalkylene group composed of 50% by mass in a proportion of 10 parts is used in a proportion of 10 parts. In Example 9, In Comparative Example 5, an aqueous liquid in which another component (E-2: potassium octylate) was used in combination at a ratio of 10 parts to 100 parts of the polyolefin synthetic fiber treatment agent prepared in Test Category 1 was further sprayed. Is a combination of 25 parts of the other component (E-1) described above with respect to 100 parts of the polyolefin synthetic fiber treating agent prepared in Test Category 1. The aqueous solution was spray refueling.
・評価
前記で得た処理済みポリオレフィン系合成繊維処理綿について、制電性及びカード通過性を次のように評価した。結果を表2にまとめて示した。
Evaluation The antistatic property and card passing property of the treated polyolefin synthetic fiber treated cotton obtained above were evaluated as follows. The results are summarized in Table 2.
・制電性の評価
前記の処理済みポリオレフィン系合成繊維処理綿5gを、20℃で45%RHの恒温室内で24時間調湿した後、電気抵抗(Ω)を抵抗値測定装置を用いて測定し、下記の評価基準で評価した。
・ Evaluation of antistatic property After 5g of the above treated polyolefin synthetic fiber-treated cotton was conditioned at 20 ° C in a constant temperature room of 45% RH for 24 hours, the electrical resistance (Ω) was measured using a resistance measuring device. And evaluated according to the following evaluation criteria.
制電性の評価基準
◎:表面抵抗が1.0×109Ω未満
○:表面抵抗が1.0×109Ω以上1.0×1010Ω未満
×:表面抵抗が1.0×1010Ω以上
Evaluation standard for antistatic property ◎: Surface resistance is less than 1.0 × 10 9 Ω ○: Surface resistance is 1.0 × 10 9 Ω or more and less than 1.0 × 10 10 Ω ×: Surface resistance is 1.0 × 10 10 Ω or more
・カード通過性の評価
前記の処理済みポリオレフィン系合成繊維処理綿20gを、20℃で65%RHの恒温室内で24時間調湿した後、ローラーカードに供した。投入量に対して排出された量の割合を算出し、下記の評価基準で評価した。
Evaluation of Card Passability 20 g of the above treated polyolefin synthetic fiber-treated cotton was conditioned at 20 ° C. in a constant temperature room of 65% RH for 24 hours, and then subjected to a roller card. The ratio of the amount discharged to the input amount was calculated and evaluated according to the following evaluation criteria.
カード通過性の評価基準
◎:排出量が80%以上
○:排出量が60%以上80%未満
×:排出量が60%未満
Evaluation criteria for card passability ◎: Emission is 80% or more ○: Emission is 60% or more and less than 80% ×: Emission is less than 60%
試験区分3(サーマルボンド不織布の作製と評価)
・サーマルボンド不織布の作製
試験区分2で得た処理済みポリオレフィン系合成繊維処理綿100gを、20℃で65%RHの恒温室内にて24時間調湿した後、ローラーカードに供して、目付け20g/m2のカードウェブを作製した。得られたカードウェブを140℃で10秒の熱風処理を行い、サーマルボンド不織布を得た。
Test category 3 (Production and evaluation of thermal bond nonwoven fabric)
-Preparation of thermal bond nonwoven fabric 100g treated polyolefin synthetic fiber-treated cotton obtained in Test Category 2 was conditioned at 20 ° C in a constant temperature room of 65% RH for 24 hours, and then subjected to a roller card to a weight of 20g / An m 2 card web was prepared. The obtained card web was subjected to hot air treatment at 140 ° C. for 10 seconds to obtain a thermal bond nonwoven fabric.
かくして作製したサーマルボンド不織布について、初期親水性、耐久親水性、ウェットバック防止性及び不織布のpHを次のように評価した。結果を表2にまとめて示した。 About the thermal bond nonwoven fabric thus produced, initial hydrophilicity, durable hydrophilicity, wetback prevention property, and pH of the nonwoven fabric were evaluated as follows. The results are summarized in Table 2.
・初期親水性の評価
前記のサーマルボンド不織布を、20℃で60%RHの恒温室内にて24時間調湿した後、水平板上に置き、ビューレットを用いて10mmの高さから0.4mlの水滴を滴下させ、その水滴が完全に吸収されてしまうまでに要する時間を測定し、下記の評価基準で評価した。
Evaluation of initial hydrophilicity The thermal bond nonwoven fabric was conditioned at 20 ° C. in a constant temperature room of 60% RH for 24 hours, then placed on a horizontal plate, and 0.4 ml from a height of 10 mm using a burette. Then, the time required for the water droplets to be completely absorbed was measured and evaluated according to the following evaluation criteria.
初期親水性の評価基準
◎:透水までに要する時間が1秒未満
○:透水までに要する時間が1秒以上2秒未満
×:透水までに要する時間が2秒以上
Evaluation criteria for initial hydrophilicity ◎: Time required for water permeation is less than 1 second ○: Time required for water permeation is 1 second or more and less than 2 seconds ×: Time required for water permeation is 2 seconds or more
・耐久親水性の評価
前記のサーマルボンド不織布を10cm×10cmの小片に裁断し、20℃で60%RHの恒温室内にて24時間調湿した。重ねた5枚の濾紙の上に調湿された不織布を置き、さらにその上の中央に両端が開放された内径1cmの円筒を垂直に立て、この円筒に0.9%生理食塩水5mlを注入し、不織布に食塩水が完全に吸収されるまでの時間を測定した。その後、不織布を取り出し、40℃で90分間送風乾燥した。同様の操作を合計3回繰り返し、3回目の時間から下記の評価基準で評価した。
-Evaluation of durable hydrophilic property The above-mentioned thermal bond nonwoven fabric was cut into small pieces of 10 cm x 10 cm, and conditioned for 24 hours at 20 ° C in a constant temperature room of 60% RH. Place a non-woven fabric that has been conditioned on the five stacked filter papers, and then vertically place a cylinder with an inner diameter of 1 cm with both ends open at the center, and inject 5 ml of 0.9% physiological saline into this cylinder. The time until the saline solution was completely absorbed by the nonwoven fabric was measured. Thereafter, the nonwoven fabric was taken out and dried by blowing at 40 ° C. for 90 minutes. The same operation was repeated a total of 3 times, and the following evaluation criteria were evaluated from the third time.
耐久親水性の評価基準
◎:生理食塩水が吸収されるまでに要する時間が3秒未満
○:生理食塩水が吸収されるまでに要する時間が3秒以上5秒未満
×:生理食塩水が吸収されるまでに要する時間が5秒以上
Evaluation criteria for durable hydrophilicity ◎: Time required for absorption of physiological saline is less than 3 seconds ○: Time required for absorption of physiological saline is 3 seconds or more and less than 5 seconds ×: Absorption of physiological saline More than 5 seconds
・ウェットバック防止性評価
前記のサーマルボンド不織布を10cm×10cmの小片に裁断し、20℃で60%RHの恒温室内にて24時間調湿した。市販されている紙おむつの最外部の不織布素材から10cm×10cmの不織布片を切除し、その切除部に前記の調湿された10cm×10cmの小片を取り付けて、ウェットバック防止性評価試料とした。取り付けた小片が上向きになるようにウェットバック防止性評価試料を水平に置き、該小片の中央に両端が開放された内径6cmの円筒を垂直に立て、この円筒に水80mlを注入し、5分間静置して、紙おむつ内部に水を吸収させた。次に取り付けた小片上に10cm×10cmの濾紙を15枚重ねて載せ、更にその上に10cm×10cmで2.8kgの錘板を載せて、2分間荷重した後、15枚重ねた濾紙の総質量を測量し、その質量の増加率を算出して、下記の評価基準で評価した。
-Wet back prevention evaluation The said thermal bond nonwoven fabric was cut | judged to the small piece of 10 cm x 10 cm, and humidity control was carried out for 24 hours in the constant temperature room of 60% RH at 20 degreeC. A 10 cm × 10 cm piece of non-woven fabric was cut out from the outermost non-woven fabric material of a commercially available paper diaper, and the 10 cm × 10 cm piece of moisture that had been conditioned was attached to the cut portion to obtain a wetback prevention evaluation sample. Place the sample to evaluate wetback prevention horizontally so that the attached small piece is facing upward, and stand a 6 cm inner diameter cylinder open at both ends at the center of the small piece, and inject 80 ml of water into this cylinder for 5 minutes. The water was absorbed inside the disposable diaper. Next, 15 sheets of 10 cm × 10 cm filter paper are stacked on the attached small piece, and further, a 2.8 kg weight plate of 10 cm × 10 cm is mounted thereon, loaded for 2 minutes, and the total of the 15 sheets of filter paper stacked. The mass was measured, the rate of increase in the mass was calculated, and evaluated according to the following evaluation criteria.
ウェットバック防止性の評価基準
◎:質量増加率が1%未満
○:質量増加率が1%以上2%未満
×:質量増加率が2%以上
Evaluation criteria for wet back prevention ◎: Mass increase rate is less than 1% ○: Mass increase rate is 1% or more and less than 2% ×: Mass increase rate is 2% or more
・pHの評価
前記のサーマルボンド不織布を20℃で60%RHの恒温室内にて24時間調湿した。平面型pH測定計を用いて、調湿した不織布表面のpHを測定し、下記の評価基準で評価した。
-Evaluation of pH The above-mentioned thermal bond nonwoven fabric was conditioned at 20 ° C in a constant temperature room of 60% RH for 24 hours. Using a flat-type pH meter, the pH of the conditioned nonwoven fabric surface was measured and evaluated according to the following evaluation criteria.
pHの評価基準
◎:不織布のpHが3以上7未満
×:不織布のpHが3未満、若しくは7以上
Evaluation criteria of pH A: The pH of the nonwoven fabric is 3 or more and less than 7 ×: The pH of the nonwoven fabric is less than 3 or 7 or more
表1に対応する表2の結果からも明らかなように、本発明によれば、良好な制電性やカード通過性を維持しつつ、得られる不織布に高度の親水性を付与することができ、また不織布を弱酸性化することができる。 As is clear from the results of Table 2 corresponding to Table 1, according to the present invention, high hydrophilicity can be imparted to the obtained nonwoven fabric while maintaining good antistatic properties and card passing properties. Moreover, a nonwoven fabric can be weakly acidified.
本発明は、ポリオレフィン系合成繊維用処理剤、その水性液、ポリオレフィン系合成繊維の処理方法、ポリオレフィン系合成繊維及びサーマルボンド不織布に関する。近年、紙おむつや生理用ナプキン等の衛生材料に使用される不織布には、高度の親水性や肌と同じ弱酸性であることが要求され、かかる不織布の製造に用いられる処理剤にも、得られる不織布にそのような特性を付与できるものであることが要求されている。本発明はかかる要求に応えるポリオレフィン系合成繊維用処理剤、かかる処理剤の水性液、かかる水性液を用いるポリオレフィン系合成繊維の処理方法、かかる処理剤が付着しているポリオレフィン系合成繊維及びかかるポリオレフィン系合成繊維製のサーマルボンド不織布に関する。 The present invention relates to a treatment agent for polyolefin synthetic fibers, an aqueous liquid thereof, a method for treating polyolefin synthetic fibers, a polyolefin synthetic fiber, and a thermal bond nonwoven fabric. In recent years, nonwoven fabrics used for sanitary materials such as paper diapers and sanitary napkins are required to have high hydrophilicity and the same weak acidity as the skin, and can also be obtained as a treatment agent used in the production of such nonwoven fabrics. It is required that the nonwoven fabric can be provided with such characteristics. The present invention is a polyolefin synthetic fiber treatment agent that meets such requirements, an aqueous liquid of such a treatment agent, a method of treating a polyolefin synthetic fiber using such an aqueous liquid, a polyolefin synthetic fiber to which such a treatment agent is attached, and such a polyolefin. The present invention relates to a thermal bond nonwoven fabric made of a synthetic fiber.
従来、合成繊維用処理剤として、アルキルリン酸エステル塩を含有して成るもの(例えば、特許文献1参照)、特定の官能基及び特定の分子量を有するポリオキシアルキレン変性シリコーンと特定の界面活性剤とを含有して成るもの(例えば、特許文献2参照)、特定の官能基を有するノニオン界面活性剤とアルキルリン酸エステル塩とを含有して成るもの(例えば、特許文献3参照)等が提案されている。しかし、これら従来の合成繊維用処理剤には、これらをポリオレフィン系合成繊維に用いても、良好な制電性やカード通過性を維持しつつ、得られる不織布に高度の親水性を付与することができず、また不織布を弱酸性に改質することができないという問題がある。 Conventionally, as treatment agents for synthetic fibers, those containing an alkyl phosphate ester salt (see, for example, Patent Document 1), polyoxyalkylene-modified silicones having a specific functional group and a specific molecular weight, and a specific surfactant (For example, see Patent Document 2), those containing a nonionic surfactant having a specific functional group and an alkyl phosphate ester salt (for example, see Patent Document 3), etc. Has been. However, these conventional synthetic fiber treatment agents impart high hydrophilicity to the resulting nonwoven fabric while maintaining good antistatic properties and card passage properties even when they are used in polyolefin synthetic fibers. In addition, there is a problem that the nonwoven fabric cannot be modified to be weakly acidic.
本発明が解決しようとする課題は、良好な制電性やカード通過性を維持しつつ、得られる不織布に高度の親水性を付与することができ、また不織布を弱酸性化することができるポリオレフィン系合成繊維用処理剤、かかる処理剤の水性液、かかる水性液を用いるポリオレフィン系合成繊維の処理方法、かかる処理剤が付着しているポリオレフィン系合成繊維及びかかるポリオレフィン系合成繊維製のサーマルボンド不織布を提供する処にある。 The problem to be solved by the present invention is a polyolefin capable of imparting a high degree of hydrophilicity to the resulting nonwoven fabric while maintaining good antistatic properties and card passing properties, and capable of weakly acidifying the nonwoven fabric. -Based synthetic fiber treatment agent, aqueous solution of such treatment agent, method of treating polyolefin-based synthetic fiber using such aqueous solution, polyolefin-based synthetic fiber to which such a treatment agent is adhered, and thermal bond nonwoven fabric made of such polyolefin-based synthetic fiber It is in place to provide.
本発明者らは、前記の課題を解決するべく研究した結果、特定の4成分を特定の割合で含有して成るポリオレフィン系合成繊維用処理剤を用いることが正しく好適であることを見出した。 As a result of researches to solve the above-mentioned problems, the present inventors have found that it is correctly and suitably used a treatment agent for polyolefin-based synthetic fibers containing specific four components in a specific ratio.
すなわち本発明は、下記の有機酸を0.3〜18質量%、下記のアルキルリン酸エステル塩Bを10〜50質量%、下記のアルキルリン酸エステル塩Cを10〜50質量%及び下記のポリオキシアルキレン誘導体を25〜65質量%(合計100質量%)の割合で含有し、下記の水性液のpHが3以上7未満となるものであることを特徴とするポリオレフィン系合成繊維用処理剤に係る。また本発明は、かかる処理剤の水性液、かかる水性液を用いる合成繊維の処理方法、かかる処理剤が付着しているポリオレフィン系合成繊維及びかかるポリオレフィン系合成繊維製のサーマルボンド不織布に係る。 That is, the present invention includes 0.3 to 18% by mass of the following organic acid, 10 to 50% by mass of the following alkyl phosphate ester salt B, 10 to 50% by mass of the following alkyl phosphate ester salt C, and the following: A treatment agent for polyolefin-based synthetic fibers, comprising a polyoxyalkylene derivative in a proportion of 25 to 65% by mass (100% by mass in total), and having a pH of 3 to less than 7 in the following aqueous liquid Concerning. The present invention also relates to an aqueous liquid of such a treatment agent, a synthetic fiber treatment method using such an aqueous liquid, a polyolefin synthetic fiber to which such a treatment agent is attached, and a thermal bond nonwoven fabric made of such a polyolefin synthetic fiber.
有機酸:有機ヒドロキシ酸、有機スルホン酸及び有機リン酸から選ばれる少なくとも一つ Organic acid: at least one selected from organic hydroxy acid, organic sulfonic acid and organic phosphoric acid
アルキルリン酸エステル塩B:炭素数4〜11のアルキルリン酸エステル塩 Alkyl phosphate ester salt B: alkyl phosphate ester salt having 4 to 11 carbon atoms
アルキルリン酸エステル塩C:炭素数12〜22のアルキルリン酸エステル塩 Alkyl phosphate ester salt C: C12-22 alkyl phosphate ester salt
ポリオキシアルキレン誘導体:炭素数22〜50の1価脂肪族アルコール1モルに対し、エチレンオキシド及び/又はプロピレンオキシドが合計で5〜100モルの割合で付加している化合物 Polyoxyalkylene derivative: Compound in which ethylene oxide and / or propylene oxide is added in a ratio of 5 to 100 mol in total with respect to 1 mol of monohydric aliphatic alcohol having 22 to 50 carbon atoms
水性液:ポリオレフィン系合成繊維用処理剤100質量部に対し、水を400〜100000質量部の割合で含有する水性液 Aqueous liquid: An aqueous liquid containing 400 to 100000 parts by mass of water with respect to 100 parts by mass of the polyolefin synthetic fiber treatment agent.
先ず、本発明に係るポリオレフィン系合成繊維用処理剤(以下、本発明の処理剤という)について説明する。本発明の処理剤は、前記したように特定の4成分を特定の割合で含有して成るものである。 First, the processing agent for polyolefin synthetic fibers according to the present invention (hereinafter referred to as the processing agent of the present invention) will be described. As described above, the treatment agent of the present invention comprises four specific components in a specific ratio.
本発明の処理剤に供する有機酸は、有機ヒドロキシ酸、有機スルホン酸及び有機リン酸から選ばれる少なくとも一つである。具体的に有機ヒドロキシ酸としては、グリコール酸、乳酸、リンゴ酸、酒石酸、クエン酸等が挙げられ、有機スルホン酸としては、パラトルエンスルホン酸、ドデシルベンゼンスルホン酸等が挙げられ、有機リン酸としては、オクチルリン酸、ドデシルリン酸等が挙げられる。 The organic acid used for the treating agent of the present invention is at least one selected from organic hydroxy acids, organic sulfonic acids, and organic phosphoric acids. Specific examples of the organic hydroxy acid include glycolic acid, lactic acid, malic acid, tartaric acid, and citric acid. Examples of the organic sulfonic acid include p-toluene sulfonic acid and dodecylbenzene sulfonic acid. Include octyl phosphoric acid, dodecyl phosphoric acid and the like.
本発明の処理剤に供するアルキルリン酸エステル塩Bは炭素数4〜11のアルキルリン酸エステル塩であり、その具体例としては、ブチルリン酸エステル塩、ヘキシルリン酸エステル塩、オクチルリン酸エステル塩、ノニルリン酸エステル塩、デシルリン酸エステル塩等が挙げられるが、なかでもヘキシルリン酸エステルアルカリ金属塩、オクチルリン酸エステルアルカリ金属塩等の炭素数6〜8のアルカリ金属塩が好ましい。 The alkyl phosphate ester salt B used for the treating agent of the present invention is an alkyl phosphate ester salt having 4 to 11 carbon atoms, and specific examples thereof include butyl phosphate ester salt, hexyl phosphate ester salt, octyl phosphate ester salt, Nonyl phosphate ester salts, decyl phosphate ester salts and the like can be mentioned, among which alkali metal salts having 6 to 8 carbon atoms such as hexyl phosphate alkali metal salts and octyl phosphate alkali metal salts are preferable.
本発明の処理剤に供するアルキルリン酸エステル塩Cは炭素数12〜22のアルキルリン酸エステル塩であり、その具体例としては、ドデシルリン酸エステル塩、トリデシルリン酸エステル塩、イソトリデシルリン酸エステル塩、テトラデシルリン酸エステル塩、ヘキサデシルリン酸エステル塩、オクタデシルリン酸エステル塩、オクタデセニルリン酸エステル塩、イソオクタデシルリン酸エステル塩、ドコシルリン酸エステル塩等が挙げられるが、なかでもドデシルリン酸エステルアルカリ金属塩、トリデシルリン酸エステルアルカリ金属塩、イソトリデシルリン酸エステルアルカリ金属塩、テトラデシルリン酸エステルアルカリ金属塩、ヘキサデシルリン酸エステルアルカリ金属塩、オクタデシルリン酸エステルアルカリ金属塩、オクタデセニルリン酸エステルアルカリ金属塩、イソオクタデシルリン酸エステルアルカリ金属塩等の炭素数12〜18のアルカリ金属塩が好ましい。 The alkyl phosphate ester salt C used in the treatment agent of the present invention is an alkyl phosphate ester salt having 12 to 22 carbon atoms, and specific examples thereof include dodecyl phosphate ester salt, tridecyl phosphate ester salt, isotridecyl phosphate ester. Salt, tetradecyl phosphate ester, hexadecyl phosphate ester, octadecyl phosphate ester salt, octadecenyl phosphate ester salt, isooctadecyl phosphate ester salt, docosyl phosphate ester salt, etc. Acid ester alkali metal salt, tridecyl phosphate alkali metal salt, isotridecyl phosphate alkali metal salt, tetradecyl phosphate alkali metal salt, hexadecyl phosphate alkali metal salt, octadecyl phosphate alkali metal salt, octa Senirurin ester alkali metal salts, alkali metal salts of 12 to 18 carbon atoms such as iso-octadecyl phosphate ester alkali metal salts are preferred.
アルキルリン酸エステル塩B及びアルキルリン酸エステル塩Cは、脂肪族1価アルコールと無水リン酸に代表されるリン酸化剤との反応、及びその後のアルカリ金属水酸化物との中和反応により合成されるが、用いる脂肪族1価アルコールは単一物でも又は2種以上の混合物でもよい。また一般にアルキルリン酸エステルアルカリ金属塩は、モノエステル、ジエステル及びP−O−P結合を含むポリ体からなる混合物であるが、その構成比率については特に制限されない。更に合成原料に含まれる不純物については、一般的な原料規格内であれば許容される。これには例えば水酸化カリウムに含まれるナトリウム成分、リン酸化剤の一つである無水リン酸に含まれる重金属やヒ素化合物等の各種不純物及び副生物が該当する。 Alkyl phosphate ester salt B and alkyl phosphate ester salt C are synthesized by a reaction between an aliphatic monohydric alcohol and a phosphorylating agent represented by anhydrous phosphoric acid, and a subsequent neutralization reaction with an alkali metal hydroxide. However, the aliphatic monohydric alcohol used may be a single substance or a mixture of two or more kinds. In general, the alkali metal salt of an alkyl phosphate ester is a mixture composed of a polyester containing a monoester, a diester and a P—O—P bond, but the constituent ratio is not particularly limited. Further, the impurities contained in the synthetic raw material are allowed if they are within general raw material specifications. This includes, for example, various impurities and by-products such as sodium components contained in potassium hydroxide and heavy metals and arsenic compounds contained in anhydrous phosphoric acid which is one of phosphorylating agents.
本発明の処理剤に供するポリオキシアルキレン誘導体は、炭素数22〜50の1価脂肪族アルコール1モルに対し、エチレンオキシド及び/又はプロピレンオキシドが合計で5〜100モルの割合で付加している化合物である。具体的にポリオキシアルキレン誘導体としては、ドコシルアルコール、テトラコシルアルコール、ヘキサコシルアルコール、オクタコシルアルコール、トリアコンチルアルコール、テトラコンチルアルコール、ドテトラコンチルアルコール、ペンタコンチルアルコール等の炭素数22〜50の1価脂肪族アルコール1モルに対し、エチレンオキシド及び/又はプロピレンオキシドが合計で5〜100モルの割合で付加しているもの等が挙げられるが、なかでもヘキサコシルアルコール、オクタコシルアルコール、トリアコンチルアルコール、テトラコンチルアルコール等の炭素数26〜40の1価脂肪族アルコール1モルに対し、エチレンオキシド及び/又はプロピレンオキシドが合計で8〜60モルの割合で付加しているものが好ましい。かかるポリオキシアルキレン誘導体においてエチレンオキシドやプロピレンオキシドの付加形態としては特に制限はなく、ブロック付加、ランダム付加のいずれでもよい。 The polyoxyalkylene derivative used for the treating agent of the present invention is a compound in which ethylene oxide and / or propylene oxide is added in a ratio of 5 to 100 mol in total with respect to 1 mol of a monovalent aliphatic alcohol having 22 to 50 carbon atoms. It is. Specific examples of the polyoxyalkylene derivative include carbons such as docosyl alcohol, tetracosyl alcohol, hexacosyl alcohol, octacosyl alcohol, triacontyl alcohol, tetracontyl alcohol, dotetracontyl alcohol, and pentacontyl alcohol. Examples include those in which ethylene oxide and / or propylene oxide are added at a total ratio of 5 to 100 moles with respect to 1 mole of monohydric aliphatic alcohol having a number of 22 to 50, among which hexacosyl alcohol, octa Ethylene oxide and / or propylene oxide is added at a ratio of 8 to 60 mol in total with respect to 1 mol of monohydric aliphatic alcohol having 26 to 40 carbon atoms such as cosyl alcohol, triacontyl alcohol, tetracontyl alcohol and the like. Is preferred. In such polyoxyalkylene derivatives, the addition form of ethylene oxide or propylene oxide is not particularly limited, and may be either block addition or random addition.
本発明の処理剤は、前記の有機酸を0.3〜18質量%、前記のアルキルリン酸エステル塩Bを10〜50質量%、前記のアルキルリン酸エステル塩Cを10〜50質量%及び前記のポリオキシアルキレン誘導体を25〜65質量%(合計100質量%)の割合で含有して成るものであるが、有機酸を0.3〜18質量%、アルキルリン酸エステル塩Bを15〜45質量%、アルキルリン酸エステル塩Cを15〜45質量%及びポリオキシアルキレン誘導体を25〜65質量%(合計100質量%)の割合で含有して成るものが好ましい。 The treating agent of the present invention comprises 0.3 to 18% by mass of the organic acid, 10 to 50% by mass of the alkyl phosphate ester salt B, 10 to 50% by mass of the alkyl phosphate ester salt C, and The polyoxyalkylene derivative is contained in a proportion of 25 to 65% by mass (total of 100% by mass). The organic acid is 0.3 to 18% by mass, and the alkyl phosphate ester salt B is 15 to 15%. It is preferable to contain 45% by mass, 15 to 45% by mass of alkyl phosphate ester salt C and 25 to 65% by mass (total 100% by mass) of polyoxyalkylene derivatives.
また本発明の処理剤は、前記したように、ポリオレフィン系合成繊維用処理剤100質量部に対し、水を400〜100000質量部の割合で含有する水性液のpHが3以上7未満となるものである。 Further, as described above, the treatment agent of the present invention has a pH of 3 to less than 7 of an aqueous liquid containing 400 to 100000 parts by mass of water with respect to 100 parts by mass of the polyolefin synthetic fiber treatment agent. It is.
次に本発明の処理剤の水性液(以下、本発明の水性液という)について説明する。本発明の水性液は、本発明の処理剤100質量部に対し、水を400〜100000質量部の割合で含有して成る水性液であって、pHが3以上7未満である水性液である。 Next, the aqueous liquid of the treating agent of the present invention (hereinafter referred to as the aqueous liquid of the present invention) will be described. The aqueous liquid of the present invention is an aqueous liquid containing 400 to 100000 parts by mass of water with respect to 100 parts by mass of the treatment agent of the present invention, and has an pH of 3 or more and less than 7. .
本発明の水性液に供する水としては、イオン交換水、蒸留水、硬水、軟水等が挙げられるが、なかでもイオン交換水、蒸留水等が好ましい。 Examples of the water used in the aqueous liquid of the present invention include ion exchange water, distilled water, hard water, soft water, and the like. Among these, ion exchange water, distilled water, and the like are preferable.
次に本発明に係るポリオレフィン系合成繊維の処理方法(以下、本発明の処理方法という)について説明する。本発明の処理方法は、本発明の水性液を、ポリオレフィン系合成繊維に対し、本発明の処理剤として0.1〜1質量%となるよう付着させる方法である。付着方法としては公知の方法が適用でき、これには例えば、ローラータッチ法、スプレー法、シャワー法、浸漬法等が挙げられる。本発明の水性液を付着させる工程としては、紡糸工程、延伸工程、仕上げ工程のいずれの工程でもよい。本発明の水性液をポリオレフィン系合成繊維に付着させるに際しては、合目的的に、本発明の処理剤以外の他の成分を併用することもできるが、かかる他の成分の併用は可及的に少量とするのが好ましい。 Next, a method for treating a synthetic polyolefin fiber according to the present invention (hereinafter referred to as the treatment method of the present invention) will be described. The treatment method of the present invention is a method in which the aqueous liquid of the present invention is attached to a polyolefin-based synthetic fiber so as to be 0.1 to 1% by mass as the treatment agent of the present invention. As the adhesion method, a known method can be applied, and examples thereof include a roller touch method, a spray method, a shower method, and an immersion method. The step of attaching the aqueous liquid of the present invention may be any of a spinning step, a drawing step, and a finishing step. In adhering the aqueous liquid of the present invention to the polyolefin-based synthetic fiber, other components other than the treatment agent of the present invention can be used in combination for the purpose, but the combined use of such other components is as much as possible. A small amount is preferable.
次に本発明に係るポリオレフィン系合成繊維(以下、本発明の合成繊維という)について説明する。本発明の合成繊維は、本発明の処理剤が付着しているポリオレフィン系合成繊維である。 Next, the polyolefin synthetic fiber according to the present invention (hereinafter referred to as the synthetic fiber of the present invention) will be described. The synthetic fiber of the present invention is a polyolefin-based synthetic fiber to which the treatment agent of the present invention is attached.
ポリオレフィン系合成繊維としては、ポリエチレン繊維、ポリプロピレン繊維、ポリブテン繊維等のポリオレフィン系繊維、芯鞘構造の複合繊維であって芯、鞘部のいずれか又は両者がポリオレフィン系繊維である複合繊維、例えば鞘部がポリエチレン繊維であるポリエチレン/ポリプロピレン複合繊維、ポリエチレン/ポリエステル複合繊維、若しくはサイドバイサイド構造を有するポリエチレン/ポリプロピレン複合繊維、ポリエチレン/ポリエステル複合繊維等が挙げられる。 Examples of the polyolefin-based synthetic fibers include polyolefin fibers such as polyethylene fibers, polypropylene fibers, and polybutene fibers, and composite fibers having a core-sheath structure in which either the core or the sheath portion or both are polyolefin-based fibers, for example, sheath Examples thereof include polyethylene / polypropylene composite fiber, polyethylene / polyester composite fiber, polyethylene / polypropylene composite fiber having a side-by-side structure, and polyethylene / polyester composite fiber.
最後に本発明のサーマルボンド不織布(以下、本発明の不織布という)について説明する。本発明の不織布は、本発明の処理剤が付着しているサーマルボンド不織布である。 Finally, the thermal bond nonwoven fabric of the present invention (hereinafter referred to as the nonwoven fabric of the present invention) will be described. The nonwoven fabric of the present invention is a thermal bond nonwoven fabric to which the treatment agent of the present invention is attached.
サーマルボンド不織布としては、エアスルー、ポイントボンド工程で得られる不織布等を用いることができるが、なかでもエアスルーによるものが好ましい。 As the thermal bond nonwoven fabric, air through, a nonwoven fabric obtained by a point bond process, and the like can be used.
本発明によると、良好な制電性やカード通過性を維持しつつ、得られる不織布に高度の親水性を付与することができ、また不織布を弱酸性化することができるという効果がある。 According to the present invention, there is an effect that a high degree of hydrophilicity can be imparted to the obtained nonwoven fabric while maintaining good antistatic property and card passing property, and the nonwoven fabric can be weakly acidified.
以下、本発明の構成及び効果をより具体的にするため、実施例等を挙げるが、本発明がこれらの実施例に限定されるというものではない。尚、以下の実施例及び比較例において、部は質量部を、また%は質量%を意味する。 Hereinafter, in order to make the configuration and effects of the present invention more specific, examples and the like will be described. However, the present invention is not limited to these examples. In the following Examples and Comparative Examples, “part” means “part by mass” and “%” means “% by mass”.
試験区分1(ポリオレフィン系合成繊維用処理剤の調製)
・実施例1
表1に記載した乳酸(A−1)の90%水性液2.8g、アルキルリン酸エステル塩(B−1)15.0g、アルキルリン酸エステル塩(C−1)15.0g及びポリオキシアルキレン誘導体(D−1)17.5gを混合し、949.7gの水を加え、撹拌して水性分散液とし、実施例1のポリオレフィン系合成繊維用処理剤の5%水性液を得た。
Test category 1 (Preparation of polyolefin synthetic fiber treatment agent)
Example 1
2.8 g of 90% aqueous solution of lactic acid (A-1) listed in Table 1, 15.0 g of alkyl phosphate ester salt (B-1), 15.0 g of alkyl phosphate ester salt (C-1) and polyoxy 17.5 g of the alkylene derivative (D-1) was mixed, 949.7 g of water was added, and the mixture was stirred to obtain an aqueous dispersion to obtain a 5% aqueous liquid of the polyolefin synthetic fiber treating agent of Example 1.
・実施例2〜9、参考例10〜13及び比較例1〜7
実施例1の場合と同様にして、実施例2〜9、参考例10〜13及び比較例1〜7のポリオレフィン系合成繊維用処理剤の5%水性液を調製した。以上の各例で調製したポリオレフィン系合成繊維用処理剤の内容を表1にまとめて示した。
-Examples 2-9, Reference Examples 10-13 and Comparative Examples 1-7
In the same manner as in Example 1, 5% aqueous liquids of the treating agents for polyolefin synthetic fibers of Examples 2 to 9, Reference Examples 10 to 13, and Comparative Examples 1 to 7 were prepared. The contents of the polyolefin-based synthetic fiber treating agents prepared in the above examples are summarized in Table 1.
表1において、
A−1:乳酸
A−2:クエン酸
A−3:パラトルエンスルホン酸
A−4:オクチルリン酸
In Table 1,
A-1: Lactic acid A-2: Citric acid A-3: Paratoluenesulfonic acid A-4: Octyl phosphoric acid
B−1:ヘキシルリン酸エステルカリウム塩
B−2:オクチルリン酸エステルカリウム塩
B−3:オクチルリン酸エステルナトリウム塩
B−4:ブチルリン酸エステルカリウム塩
B−5:デシルリン酸エステルカリウム塩
Rb−1:プロピルリン酸エステルカリウム塩
B-1: Hexyl phosphate potassium salt B-2: Octyl phosphate potassium salt B-3: Octyl phosphate sodium salt B-4: Butyl phosphate potassium salt B-5: Decyl phosphate potassium salt Rb-1 : Propyl phosphate potassium salt
C−1:ドデシルリン酸エステルカリウム塩
C−2:オクタデシルリン酸エステルカリウム塩
C−3:ドコシルリン酸エステルカリウム塩
Rc−1:テトラコシルリン酸エステルカリウム塩
C-1: Dodecyl phosphate potassium salt C-2: Octadecyl phosphate potassium salt C-3: Docosyl phosphate potassium salt Rc-1: Tetracosyl phosphate potassium salt
D−1:ポリオキシエチレン(10モル)オクタコシルエーテル
D−2:ポリオキシエチレン(25モル)ポリオキシプロピレン(25モル)オクタコシルエーテル
D−3:ポリオキシエチレン(35モル)オクタトリアコンチルエーテル
D−4:ポリオキシエチレン(10モル)テトラコシルエーテル
D−5:ポリオキシエチレン(10モル)オクタテトラコンチルエーテル
D−6:ポリオキシエチレン(6モル)オクタコシルエーテル
D−7:ポリオキシエチレン(80モル)オクタコシルエーテル
Rd−1:ポリオキシエチレン(10モル)オクタデシルエーテル
Rd−2:ポリオキシエチレン(10モル)ヘキサコンチルエーテル
Rd−3:ポリオキシエチレン(3モル)オクタコシルエーテル
Rd−4:ポリオキシエチレン(60モル)ポリオキシプロピレン(60モル)オクタコシルエーテル
D-1: Polyoxyethylene (10 mol) octacosyl ether D-2: Polyoxyethylene (25 mol) polyoxypropylene (25 mol) octacosyl ether D-3: Polyoxyethylene (35 mol) octatriacontyl ether D-4: Polyoxyethylene (10 mol) tetracosyl ether D-5: Polyoxyethylene (10 mol) octatetracontyl ether D-6: Polyoxyethylene (6 mol) octacosyl ether D-7: Polyoxyethylene (80 mol) octacosyl ether Rd-1: polyoxyethylene (10 mol) octadecyl ether Rd-2: polyoxyethylene (10 mol) hexacontyl ether Rd-3: polyoxyethylene (3 mol) octacosyl ether Rd- 4: Polyoxyethylene (60 mol) polyoxypropylene (60 mol) octacosyl ether
試験区分2(ポリオレフィン系合成繊維用処理剤の付着と評価)
・ポリオレフィン系合成繊維処理剤の付着
試験区分1で調製したポリオレフィン系合成繊維用処理剤の水性液を、鞘部がポリエチレンであり、芯部がポリエステルであるポリオレフィン系複合繊維(繊度2.2デシテックス、繊維長51mm)に、表2に記載の付着量となるようスプレー給油法で付着させ、80℃の熱風乾燥機で1時間乾燥して、処理済みポリオレフィン系合成繊維処理綿を得た。但し、実施例8においては、試験区分1で調製したポリオレフィン系合成繊維用処理剤100部に対し他の成分(E−1:変性基としてオキシプロピレン単位/オキシエチレン単位=50/50(質量%)の割合で構成されたポリオキシアルキレン基を全体の50質量%有する平均分子量5000のポリオキシアルキレン変性シリコーン)を10部の割合で併用した水性液をスプレー給油し、また実施例9においては、試験区分1で調製したポリオレフィン系合成繊維用処理剤100部に対し他の成分(E−2:オクチル酸カリウム塩)を10部の割合で併用した水性液をスプレー給油し、更に比較例5においては、試験区分1で調製したポリオレフィン系合成繊維用処理剤100部に対し前記の他の成分(E−1)を25部の割合で併用した水性液をスプレー給油した。
Test Category 2 (Adhesion and evaluation of polyolefin synthetic fiber treatment agent)
-Adhesion of polyolefin synthetic fiber treatment agent Aqueous liquid of polyolefin synthetic fiber treatment agent prepared in Test Category 1 is a polyolefin composite fiber whose sheath is polyethylene and whose core is polyester (fineness 2.2 decitex). To a fiber length of 51 mm) by a spray oiling method so as to have an adhesion amount shown in Table 2, and dried for 1 hour with a hot air dryer at 80 ° C. to obtain a treated polyolefin synthetic fiber-treated cotton. However, in Example 8, other components (E-1: oxypropylene unit / oxyethylene unit as a modifying group = 50/50 (mass%) with respect to 100 parts of the polyolefin synthetic fiber treating agent prepared in Test Category 1 ) And sprayed with an aqueous liquid in which a polyoxyalkylene-modified silicone having an average molecular weight of 5000 having a polyoxyalkylene group composed of 50% by mass in a proportion of 10 parts is used in a proportion of 10 parts. In Example 9, In Comparative Example 5, an aqueous liquid in which another component (E-2: potassium octylate) was used in combination at a ratio of 10 parts to 100 parts of the polyolefin synthetic fiber treatment agent prepared in Test Category 1 was further sprayed. Is a combination of 25 parts of the other component (E-1) described above with respect to 100 parts of the polyolefin synthetic fiber treating agent prepared in Test Category 1. The aqueous solution was spray refueling.
・評価
前記で得た処理済みポリオレフィン系合成繊維処理綿について、制電性及びカード通過性を次のように評価した。結果を表2にまとめて示した。
Evaluation The antistatic property and card passing property of the treated polyolefin synthetic fiber treated cotton obtained above were evaluated as follows. The results are summarized in Table 2.
・制電性の評価
前記の処理済みポリオレフィン系合成繊維処理綿5gを、20℃で45%RHの恒温室内で24時間調湿した後、電気抵抗(Ω)を抵抗値測定装置を用いて測定し、下記の評価基準で評価した。
・ Evaluation of antistatic property After 5g of the above treated polyolefin synthetic fiber-treated cotton was conditioned at 20 ° C in a constant temperature room of 45% RH for 24 hours, the electrical resistance (Ω) was measured using a resistance measuring device. And evaluated according to the following evaluation criteria.
制電性の評価基準
◎:表面抵抗が1.0×109Ω未満
○:表面抵抗が1.0×109Ω以上1.0×1010Ω未満
×:表面抵抗が1.0×1010Ω以上
Evaluation standard for antistatic property ◎: Surface resistance is less than 1.0 × 10 9 Ω ○: Surface resistance is 1.0 × 10 9 Ω or more and less than 1.0 × 10 10 Ω ×: Surface resistance is 1.0 × 10 10 Ω or more
・カード通過性の評価
前記の処理済みポリオレフィン系合成繊維処理綿20gを、20℃で65%RHの恒温室内で24時間調湿した後、ローラーカードに供した。投入量に対して排出された量の割合を算出し、下記の評価基準で評価した。
Evaluation of Card Passability 20 g of the above treated polyolefin synthetic fiber-treated cotton was conditioned at 20 ° C. in a constant temperature room of 65% RH for 24 hours, and then subjected to a roller card. The ratio of the amount discharged to the input amount was calculated and evaluated according to the following evaluation criteria.
カード通過性の評価基準
◎:排出量が80%以上
○:排出量が60%以上80%未満
×:排出量が60%未満
Evaluation criteria for card passability ◎: Emission is 80% or more ○: Emission is 60% or more and less than 80% ×: Emission is less than 60%
試験区分3(サーマルボンド不織布の作製と評価)
・サーマルボンド不織布の作製
試験区分2で得た処理済みポリオレフィン系合成繊維処理綿100gを、20℃で65%RHの恒温室内にて24時間調湿した後、ローラーカードに供して、目付け20g/m2のカードウェブを作製した。得られたカードウェブを140℃で10秒の熱風処理を行い、サーマルボンド不織布を得た。
Test category 3 (Production and evaluation of thermal bond nonwoven fabric)
-Preparation of thermal bond nonwoven fabric 100g treated polyolefin synthetic fiber-treated cotton obtained in Test Category 2 was conditioned at 20 ° C in a constant temperature room of 65% RH for 24 hours, and then subjected to a roller card to a weight of 20g / An m 2 card web was prepared. The obtained card web was subjected to hot air treatment at 140 ° C. for 10 seconds to obtain a thermal bond nonwoven fabric.
かくして作製したサーマルボンド不織布について、初期親水性、耐久親水性、ウェットバック防止性及び不織布のpHを次のように評価した。結果を表2にまとめて示した。 About the thermal bond nonwoven fabric thus produced, initial hydrophilicity, durable hydrophilicity, wetback prevention property, and pH of the nonwoven fabric were evaluated as follows. The results are summarized in Table 2.
・初期親水性の評価
前記のサーマルボンド不織布を、20℃で60%RHの恒温室内にて24時間調湿した後、水平板上に置き、ビューレットを用いて10mmの高さから0.4mlの水滴を滴下させ、その水滴が完全に吸収されてしまうまでに要する時間を測定し、下記の評価基準で評価した。
Evaluation of initial hydrophilicity The thermal bond nonwoven fabric was conditioned at 20 ° C. in a constant temperature room of 60% RH for 24 hours, then placed on a horizontal plate, and 0.4 ml from a height of 10 mm using a burette. Then, the time required for the water droplets to be completely absorbed was measured and evaluated according to the following evaluation criteria.
初期親水性の評価基準
◎:透水までに要する時間が1秒未満
○:透水までに要する時間が1秒以上2秒未満
×:透水までに要する時間が2秒以上
Evaluation criteria for initial hydrophilicity ◎: Time required for water permeation is less than 1 second ○: Time required for water permeation is 1 second or more and less than 2 seconds ×: Time required for water permeation is 2 seconds or more
・耐久親水性の評価
前記のサーマルボンド不織布を10cm×10cmの小片に裁断し、20℃で60%RHの恒温室内にて24時間調湿した。重ねた5枚の濾紙の上に調湿された不織布を置き、さらにその上の中央に両端が開放された内径1cmの円筒を垂直に立て、この円筒に0.9%生理食塩水5mlを注入し、不織布に食塩水が完全に吸収されるまでの時間を測定した。その後、不織布を取り出し、40℃で90分間送風乾燥した。同様の操作を合計3回繰り返し、3回目の時間から下記の評価基準で評価した。
-Evaluation of durable hydrophilic property The above-mentioned thermal bond nonwoven fabric was cut into small pieces of 10 cm x 10 cm, and conditioned for 24 hours at 20 ° C in a constant temperature room of 60% RH. Place a non-woven fabric that has been conditioned on the five stacked filter papers, and then vertically place a cylinder with an inner diameter of 1 cm with both ends open at the center, and inject 5 ml of 0.9% physiological saline into this cylinder. The time until the saline solution was completely absorbed by the nonwoven fabric was measured. Thereafter, the nonwoven fabric was taken out and dried by blowing at 40 ° C. for 90 minutes. The same operation was repeated a total of 3 times, and the following evaluation criteria were evaluated from the third time.
耐久親水性の評価基準
◎:生理食塩水が吸収されるまでに要する時間が3秒未満
○:生理食塩水が吸収されるまでに要する時間が3秒以上5秒未満
×:生理食塩水が吸収されるまでに要する時間が5秒以上
Evaluation criteria for durable hydrophilicity ◎: Time required for absorption of physiological saline is less than 3 seconds ○: Time required for absorption of physiological saline is 3 seconds or more and less than 5 seconds ×: Absorption of physiological saline More than 5 seconds
・ウェットバック防止性評価
前記のサーマルボンド不織布を10cm×10cmの小片に裁断し、20℃で60%RHの恒温室内にて24時間調湿した。市販されている紙おむつの最外部の不織布素材から10cm×10cmの不織布片を切除し、その切除部に前記の調湿された10cm×10cmの小片を取り付けて、ウェットバック防止性評価試料とした。取り付けた小片が上向きになるようにウェットバック防止性評価試料を水平に置き、該小片の中央に両端が開放された内径6cmの円筒を垂直に立て、この円筒に水80mlを注入し、5分間静置して、紙おむつ内部に水を吸収させた。次に取り付けた小片上に10cm×10cmの濾紙を15枚重ねて載せ、更にその上に10cm×10cmで2.8kgの錘板を載せて、2分間荷重した後、15枚重ねた濾紙の総質量を測量し、その質量の増加率を算出して、下記の評価基準で評価した。
-Wet back prevention evaluation The said thermal bond nonwoven fabric was cut | judged to the small piece of 10 cm x 10 cm, and humidity control was carried out for 24 hours in the constant temperature room of 60% RH at 20 degreeC. A 10 cm × 10 cm piece of non-woven fabric was cut out from the outermost non-woven fabric material of a commercially available paper diaper, and the 10 cm × 10 cm piece of moisture that had been conditioned was attached to the cut portion to obtain a wetback prevention evaluation sample. Place the sample to evaluate wetback prevention horizontally so that the attached small piece is facing upward, and stand a 6 cm inner diameter cylinder open at both ends at the center of the small piece, and inject 80 ml of water into this cylinder for 5 minutes. The water was absorbed inside the disposable diaper. Next, 15 sheets of 10 cm × 10 cm filter paper are stacked on the attached small piece, and further, a 2.8 kg weight plate of 10 cm × 10 cm is mounted thereon, loaded for 2 minutes, and the total of the 15 sheets of filter paper stacked. The mass was measured, the rate of increase in the mass was calculated, and evaluated according to the following evaluation criteria.
ウェットバック防止性の評価基準
◎:質量増加率が1%未満
○:質量増加率が1%以上2%未満
×:質量増加率が2%以上
Evaluation criteria for wet back prevention ◎: Mass increase rate is less than 1% ○: Mass increase rate is 1% or more and less than 2% ×: Mass increase rate is 2% or more
・pHの評価
前記のサーマルボンド不織布を20℃で60%RHの恒温室内にて24時間調湿した。平面型pH測定計を用いて、調湿した不織布表面のpHを測定し、下記の評価基準で評価した。
-Evaluation of pH The above-mentioned thermal bond nonwoven fabric was conditioned at 20 ° C in a constant temperature room of 60% RH for 24 hours. Using a flat-type pH meter, the pH of the conditioned nonwoven fabric surface was measured and evaluated according to the following evaluation criteria.
pHの評価基準
◎:不織布のpHが3以上7未満
×:不織布のpHが3未満、若しくは7以上
Evaluation criteria of pH A: The pH of the nonwoven fabric is 3 or more and less than 7 ×: The pH of the nonwoven fabric is less than 3 or 7 or more
表1に対応する表2の結果からも明らかなように、本発明によれば、良好な制電性やカード通過性を維持しつつ、得られる不織布に高度の親水性を付与することができ、また不織布を弱酸性化することができる。 As is clear from the results of Table 2 corresponding to Table 1, according to the present invention, high hydrophilicity can be imparted to the obtained nonwoven fabric while maintaining good antistatic properties and card passing properties. Moreover, a nonwoven fabric can be weakly acidified.
Claims (9)
有機酸:有機ヒドロキシ酸、有機スルホン酸及び有機リン酸から選ばれる少なくとも一つ
アルキルリン酸エステル塩B:炭素数4〜11のアルキルリン酸エステル塩
アルキルリン酸エステル塩C:炭素数12〜22のアルキルリン酸エステル塩
ポリオキシアルキレン誘導体:炭素数22〜50の1価脂肪族アルコール1モルに対し、エチレンオキシド及び/又はプロピレンオキシドが合計で5〜100モルの割合で付加している化合物 0.1 to 20% by mass of the following organic acid, 10 to 50% by mass of the following alkyl phosphate ester salt B, 10 to 50% by mass of the following alkyl phosphate ester salt C, and the following polyoxyalkylene derivative. A treating agent for polyolefin-based synthetic fibers, comprising 20 to 75% by mass (100% by mass in total).
Organic acid: At least one selected from organic hydroxy acid, organic sulfonic acid and organic phosphoric acid Alkyl phosphate ester salt B: Alkyl phosphate ester salt having 4 to 11 carbon atoms Alkyl phosphate ester salt C: 12 to 22 carbon atoms Alkyl phosphate ester salt of polyoxyalkylene derivative: Compound in which ethylene oxide and / or propylene oxide is added in a ratio of 5 to 100 mol in total with respect to 1 mol of monovalent aliphatic alcohol having 22 to 50 carbon atoms
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PCT/JP2017/010830 WO2017203808A1 (en) | 2016-05-25 | 2017-03-17 | Treatment agent for polyolefin-based synthetic fibers, aqueous solution of same, treatment method for polyolefin-based synthetic fibers, polyolefin-based synthetic fibers and thermally bonded nonwoven fabric |
KR1020187033106A KR101978950B1 (en) | 2016-05-25 | 2017-03-17 | Treating agent for polyolefin-based synthetic fiber, aqueous solution thereof, treatment method of polyolefin-based synthetic fiber, polyolefin-based synthetic fiber and thermal bond nonwoven fabric |
CN201780027056.8A CN109072539B (en) | 2016-05-25 | 2017-03-17 | Treating agent for polyolefin synthetic fiber, aqueous liquid thereof, polyolefin synthetic fiber and treating method thereof, and heat-bonded nonwoven fabric |
TW106112022A TWI617714B (en) | 2016-05-25 | 2017-04-11 | Treating agent for polyolefin synthetic fiber, aqueous liquid thereof, method of treating polyolefin synthetic fiber, polyolefin synthetic fiber, and thermally-bonded nonwoven fabric |
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