WO2018123043A1 - 吸水性ポリエステル繊維の巻糸体及びその製法 - Google Patents
吸水性ポリエステル繊維の巻糸体及びその製法 Download PDFInfo
- Publication number
- WO2018123043A1 WO2018123043A1 PCT/JP2016/089171 JP2016089171W WO2018123043A1 WO 2018123043 A1 WO2018123043 A1 WO 2018123043A1 JP 2016089171 W JP2016089171 W JP 2016089171W WO 2018123043 A1 WO2018123043 A1 WO 2018123043A1
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- WIPO (PCT)
- Prior art keywords
- polyester fiber
- water
- wound
- oligomer
- wound body
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 69
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
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- 125000004122 cyclic group Chemical group 0.000 claims abstract description 22
- 238000000354 decomposition reaction Methods 0.000 claims abstract 2
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- 238000006386 neutralization reaction Methods 0.000 claims description 12
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- 239000013585 weight reducing agent Substances 0.000 claims description 5
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical group C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 claims description 3
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- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 description 2
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- GZCKIUIIYCBICZ-UHFFFAOYSA-L disodium;benzene-1,3-dicarboxylate Chemical compound [Na+].[Na+].[O-]C(=O)C1=CC=CC(C([O-])=O)=C1 GZCKIUIIYCBICZ-UHFFFAOYSA-L 0.000 description 2
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 2
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- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 238000001819 mass spectrum Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
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- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 2
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 150000005846 sugar alcohols Polymers 0.000 description 2
- 150000003871 sulfonates Chemical class 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 238000002211 ultraviolet spectrum Methods 0.000 description 2
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- BAERPNBPLZWCES-UHFFFAOYSA-N (2-hydroxy-1-phosphonoethyl)phosphonic acid Chemical compound OCC(P(O)(O)=O)P(O)(O)=O BAERPNBPLZWCES-UHFFFAOYSA-N 0.000 description 1
- HJIAMFHSAAEUKR-UHFFFAOYSA-N (2-hydroxyphenyl)-phenylmethanone Chemical class OC1=CC=CC=C1C(=O)C1=CC=CC=C1 HJIAMFHSAAEUKR-UHFFFAOYSA-N 0.000 description 1
- KTRAEKUHPXFQHU-UHFFFAOYSA-N 1-sulfonaphthalene-2,6-dicarboxylic acid Chemical compound OS(=O)(=O)C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 KTRAEKUHPXFQHU-UHFFFAOYSA-N 0.000 description 1
- DPBYXPSNKVDNCZ-UHFFFAOYSA-N 4-hydroxy-2-sulfobenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1S(O)(=O)=O DPBYXPSNKVDNCZ-UHFFFAOYSA-N 0.000 description 1
- FDXXNZBUQBJJJS-UHFFFAOYSA-M C(CCC)[P+](CCCC)(CCCC)CCCC.C1=CC=C(C2=CC=CC=C12)S(=O)(=O)[O-] Chemical compound C(CCC)[P+](CCCC)(CCCC)CCCC.C1=CC=C(C2=CC=CC=C12)S(=O)(=O)[O-] FDXXNZBUQBJJJS-UHFFFAOYSA-M 0.000 description 1
- XSFMRDBLAYMQEP-UHFFFAOYSA-M C[P+](C)(C)C.C1(=CC=CC2=CC=CC=C12)S(=O)(=O)[O-] Chemical compound C[P+](C)(C)C.C1(=CC=CC2=CC=CC=C12)S(=O)(=O)[O-] XSFMRDBLAYMQEP-UHFFFAOYSA-M 0.000 description 1
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 1
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- WDJHALXBUFZDSR-UHFFFAOYSA-N acetoacetic acid Chemical compound CC(=O)CC(O)=O WDJHALXBUFZDSR-UHFFFAOYSA-N 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 150000008052 alkyl sulfonates Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- WWLOCCUNZXBJFR-UHFFFAOYSA-N azanium;benzenesulfonate Chemical compound [NH4+].[O-]S(=O)(=O)C1=CC=CC=C1 WWLOCCUNZXBJFR-UHFFFAOYSA-N 0.000 description 1
- CDSYNBNDDIBFSF-UHFFFAOYSA-M benzenesulfonate tributyl(methyl)phosphanium Chemical compound [O-]S(=O)(=O)c1ccccc1.CCCC[P+](C)(CCCC)CCCC CDSYNBNDDIBFSF-UHFFFAOYSA-M 0.000 description 1
- VEGPYAOWYWDJKW-UHFFFAOYSA-M benzenesulfonate;tetrabutylphosphanium Chemical compound [O-]S(=O)(=O)C1=CC=CC=C1.CCCC[P+](CCCC)(CCCC)CCCC VEGPYAOWYWDJKW-UHFFFAOYSA-M 0.000 description 1
- WLNQVIBTOCBTBA-UHFFFAOYSA-M benzenesulfonate;tetramethylphosphanium Chemical compound C[P+](C)(C)C.[O-]S(=O)(=O)C1=CC=CC=C1 WLNQVIBTOCBTBA-UHFFFAOYSA-M 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
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- 238000004140 cleaning Methods 0.000 description 1
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- 239000003063 flame retardant Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 235000013922 glutamic acid Nutrition 0.000 description 1
- 239000004220 glutamic acid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
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- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 238000009981 jet dyeing Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- OJURWUUOVGOHJZ-UHFFFAOYSA-N methyl 2-[(2-acetyloxyphenyl)methyl-[2-[(2-acetyloxyphenyl)methyl-(2-methoxy-2-oxoethyl)amino]ethyl]amino]acetate Chemical compound C=1C=CC=C(OC(C)=O)C=1CN(CC(=O)OC)CCN(CC(=O)OC)CC1=CC=CC=C1OC(C)=O OJURWUUOVGOHJZ-UHFFFAOYSA-N 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
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- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 description 1
- AYFACLKQYVTXNS-UHFFFAOYSA-M sodium;tetradecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCCCS([O-])(=O)=O AYFACLKQYVTXNS-UHFFFAOYSA-M 0.000 description 1
- ORLPWCUCEDVJNN-UHFFFAOYSA-N sodium;tetradecyl benzenesulfonate Chemical compound [Na].CCCCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 ORLPWCUCEDVJNN-UHFFFAOYSA-N 0.000 description 1
- DBMQUCVJHLWQHT-UHFFFAOYSA-M sodium;undecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCS([O-])(=O)=O DBMQUCVJHLWQHT-UHFFFAOYSA-M 0.000 description 1
- NZRSEGYTVSNMCK-UHFFFAOYSA-N sodium;undecyl benzenesulfonate Chemical compound [Na].CCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 NZRSEGYTVSNMCK-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Images
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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
-
- 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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/38—Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
- D01F11/04—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers
- D01F11/08—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
- D01F6/86—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from polyetheresters
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
- D01F6/84—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from copolyesters
-
- 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
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2501/00—Wearing apparel
- D10B2501/02—Underwear
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2501/00—Wearing apparel
- D10B2501/04—Outerwear; Protective garments
Definitions
- the present invention relates to a wound body of water-absorbing polyester fiber and a production method thereof. More specifically, the present invention has semi-permanent water absorption without performing water absorption processing, and is excellent in water absorption, so that sweat at the time of wearing can be quickly absorbed, excellent in comfort, and soft,
- the present invention relates to a wound body of a water-absorbing polyester fiber that can be suitably used for inner wear, sports wear, bedding, and the like, and a method for producing the same.
- Synthetic fibers such as polyester and polyamide fibers are used for innerwear, sportswear, etc. as general-purpose materials, but these synthetic fibers are hydrophobic fibers, especially when used for products around the skin. Water absorption processing is necessary, and there is a problem that water absorption decreases when washing is repeated. In particular, in high-temperature washing, which is called industrial washing used in uniforms and the like, the water-absorbing agent is significantly removed, and improvement in washing durability is required.
- Patent Literature 1 describes that a polyester fiber woven or knitted fabric having water absorbency is manufactured by treating a polyester fiber with alkali and then treating it with a treatment liquid containing a hydrophilic agent.
- a polyester fiber woven or knitted fabric having water absorbency is manufactured by treating a polyester fiber with alkali and then treating it with a treatment liquid containing a hydrophilic agent.
- ordinary polyester is alkali-processed and hydrophilic-processed, the performance is deteriorated by repeated washing, and therefore water-absorbing property having durability for washing cannot be imparted.
- Patent Document 2 describes a fabric containing polyester fibers containing 0.005 to 0.5 wt% of S element
- Patent Document 3 discloses an ester-forming sulfonate compound of 0.5 to 0.5 wt%. It is described that fabrics containing polyester fibers contained at 5 mol% are each subjected to alkali treatment to impart water absorption with washing durability. However, there is a problem that a fabric mixed with a material that is not resistant to alkali cannot be subjected to alkali treatment, and when water-repellent yarns are mixed, water repellency is lowered.
- the problem to be solved by the present invention is a material that absorbs water semipermanently even when water-absorbing processing is not performed, and is not resistant to alkali, yarn that has been subjected to water-repellent processing, etc. It is to provide a wound body of water-absorbing polyester fiber that can be knitted, and to suppress the generation of white powder that becomes a problem in the process of using the wound body.
- the present inventors have reattached the cyclic oligomer, which is a source of white powder, to the polyester fiber when the specific polyester fiber is alkali-treated by a specific method.
- the inventors have found that the above-mentioned problems can be solved by preventing the problem, and have completed the present invention.
- the present invention is as follows.
- JIS L0217: 1995 103 JIS L1907: 2010 after 30 washings by the C method Winding body of water-absorbing polyester fiber having water absorption by the dropping method of 5 seconds or less, and constituting the absorbent polyester fiber
- n is an integer of 3 to 10.
- the wound body of the water-absorbing polyester fiber of the present invention does not generate white powder in the winding-up process or knitting process, absorbs water semipermanently even when not subjected to water-absorbing processing, and quickly absorbs sweat when worn. Since it is comfortable, soft and soft to the touch, it can be suitably used for innerwear, sportswear and the like.
- the water-absorbing polyester fiber constituting the wound body of the present embodiment has a water-absorbing property after 30 washings according to JIS L0217: 1995 103 C method (JIS L1907) when a knitted fabric is used to measure the water absorption. : 2010 dropping method) is 5 seconds or less.
- the water absorption after 30 washings is preferably 3 seconds or less, more preferably 2 seconds or less, and even more preferably 1 second or less.
- the water absorption after one wash by the same method is also preferably 5 seconds or less, more preferably 3 seconds or less, still more preferably 2 seconds or less, and particularly preferably 1 second or less.
- the polyester fiber constituting the wound body of the present embodiment can retain water absorption even after 50 times of washing and 100 times, and water absorption is 5 seconds or less after 50 and 100 times. Further preferred.
- a normal detergent such as a neutral detergent or a weak alkaline detergent is preferably used.
- the water-absorbing polyester fiber constituting the wound body of the present embodiment is also excellent in the effect of maintaining the water-absorbing effect even during industrial washing.
- Industrial laundry is washing under conditions more severe than home laundry, which is applied to laundry such as work clothes and uniforms.
- JIS L1096: 2010 8.39.5 b) 2.2.2) F- 2 The method prescribed
- the fabric of the present embodiment preferably has a water absorption of 5 seconds or less after 30 washings at 60 ° C. for 30 minutes according to JIS L1096: 2010 F-2.
- the amount of white powder attached is measured using a measuring instrument (model SSD-3, manufactured by Daiei Kagaku Seisakusho Co., Ltd.) shown in FIG.
- the white powder adhering to the fiber surface can be collected by rubbing the surface of the yarn with a tensor for applying tension when winding with a measuring instrument. Although it is not possible to collect all of the white powder adhering from the yarn surface by such a method, it can be determined whether the level is practically satisfactory. Referring to FIG.
- the yarn 2 drawn from the wound yarn body 1 includes a snail guide 3 (manufactured by Yuasa Yidodo Co., Ltd., model number A408067-R), a ring tenser 4 (manufactured by Toyo Manufacturing Co., Ltd., model number).
- a snail guide 3 manufactured by Yuasa Yidodo Co., Ltd., model number A408067-R
- a ring tenser 4 manufactured by Toyo Manufacturing Co., Ltd., model number
- traverse guide 5 manufactured by Yuasa Yarnichi Kogyo Co., Ltd., model number A408132-R
- the height from the floor surface on which the wound body 1 is placed to the snail guide 3 is 800 mm, and the wound body 1 is placed so that the perpendicular from the center of the yarn introduction hole of the snail guide 3 overlaps the central axis of the wound body 1. It was.
- the height from the snail guide 3 to the yarn insertion hole of the ring tensor 4 was 400 mm, and the angle of the yarn 2 entering the yarn insertion hole of the ring tensor 4 from the snail guide 3 was 90 degrees.
- the load on the ring tensor 4 all 1.2 g rings were used.
- the position of the traverse guide 5 was set to 250 mm in the horizontal distance from the threading hole of the ring tensor 4 and 50 mm lower than the height of the threading hole of the ring tensor 4.
- the position of the bobbin winding frame 6 was set so that the height of the yarn introduction hole of the traverse guide 5 and the center of the rotation axis of the bobbin winding frame 6 were the same height, and the distance from the traverse guide 5 to the center of the rotation axis of the bobbin winding frame 6 was 533 mm.
- the traverse guide 5 has a swing width of 50 mm, a traverse speed of 120 mm / min, and a winding speed of 120 m / min.
- Amount of white powder (wt%) (ABC) / C ⁇ 100 ⁇ In the formula, A: weight (g) before rewinding the wound thread body, B: weight (g) after rewinding the wound thread body, and C: weight (g) of the wound thread. ⁇ .
- the adhesion amount of white powder is less than 0.3 wt%, preferably less than 0.2 wt%, more preferably less than 0.1 wt%. If the amount of white powder exceeds 0.3 wt%, the unwinding property deteriorates, or the white powder adheres to guides and yarn paths of knitting machines, looms, winders, etc., and the white powder accumulates, resulting in abnormal tension. Cause process trouble.
- the polyester fiber constituting the wound body of the present embodiment is a linear oligomer component having a carboxyl group at its end on the fiber surface (also referred to as “terminal carboxylic acid linear oligomer component” in this document). .)) Exists.
- the presence of a terminal carboxylic acid linear oligomer component on the surface exhibits water-absorbing repeated washing durability.
- a wound body of polyester fiber in which such a terminal carboxylic acid linear oligomer component is present has excellent water absorption performance.
- the presence of the oligomer component can be confirmed by qualitative and quantitative analysis by the analysis method described below.
- a relatively low molecular weight oligomer component can be dissolved in THF and analyzed by LC / MS (liquid chromatography mass spectrometry).
- LC / MS liquid chromatography mass spectrometry
- FIG. 2 shows a chart example of the UV chromatogram (240 nm) of the THF solution.
- FIG. 3 shows an estimated structure of the characteristic peak of the UV chromatogram of FIG.
- a mass chromatogram having a mass number of 785 (vertical axis: detection intensity of specific mass number, horizontal axis: retention time) is displayed. Whether or not the oligomer is present depending on whether or not the detected intensity peak (peak z) of the mass number is present in the vicinity of the retention time estimated from the UV spectrum example (about 4.5 min. In FIG. 2). Can be determined.
- the concentration can be converted from the ratio to the peak area value.
- the position of the internal standard substance peak c is estimated by detecting ions of the mass number in the ESI-mass spectrum of the peak.
- the area of the mass chromatogram peak z having the mass number 785 described above is used to clearly detect both the peak x and the peak z.
- the area of the peak z of the sample of interest can be converted to the area of the peak x.
- the intensity ratio with the peak c can be calculated using the area of the peak x of the sample of interest thus obtained.
- the amount of the cyclic oligomer represented by the formula (2) can also be dissolved in THF for a relatively low-molecular cyclic oligomer and analyzed by LC / MS (liquid chromatography mass spectrometry), and the peak with respect to the internal standard From the intensity ratio, the internal standard equivalent concentration can be obtained.
- the fact that this peak is derived from the cyclic oligomer component (molecular weight 576.13) is that ions having a mass number (m / z) of 594.16 in the ESI-mass spectrum (electrospray ionization, positive ion mass spectrum) of the peak This can be confirmed by detecting ([M + NH4] +).
- the abundance of the oligomer component can be measured by the peak area value of the UV chromatogram, and the concentration is converted from the ratio with the peak area value of the peak (referred to as peak c) of the methyl benzoate UV chromatogram added as an internal standard. Can do.
- the wound body of this embodiment retains a relatively high-molecular terminal carboxylic acid linear oligomer that is not extracted with THF on the surface of the polyester fiber constituting the wound body even after extraction of the THF-soluble oligomer. It is preferable. Since the terminal carboxylic acid linear oligomer has high adhesiveness to the fiber and the oligomer is difficult to fall off even after repeated washing, it is considered that the terminal carboxylic acid linear oligomer exhibits a great effect on water absorption after repeated washing.
- the method for allowing the oligomer to exist is not particularly limited, and the terminal carboxylic acid linear oligomer component may be applied to the fabric by a method such as coating or mixed with an ester polymer. By applying a specific alkali treatment, it can be applied to the vicinity of the fiber surface, which is preferable.
- the wound body of the present embodiment is preferably characterized by including a polyester fiber containing 0.005 to 1 wt% of S element (sulfur element).
- S element sulfur element
- the S element in the polyester fiber is more preferably 0.01 to 0.8 w%, and further preferably 0.015 to 0.7 wt%.
- ICP-AES inductively coupled plasma emission spectrometer
- polyester fibers containing 0.005 to 1 wt% of S element include polyester fibers containing 0.5 to 5 mol% of ester-forming sulfonate compounds.
- ester-forming sulfonate compound contained in the polyester fiber in an amount of 0.5 to 5 mol% examples include 5-sodium sulfoisophthalic acid, 5-potassium sulfoisophthalic acid, 4-sodium sulfo-2,6-naphthalenedicarboxylic acid.
- 2-sodium sulfo-4-hydroxybenzoic acid 3,5-dicarboxylic acid benzenesulfonic acid tetramethylphosphonium salt, 3,5-dicarboxylic acid benzenesulfonic acid tetrabutylphosphonium salt, 3,5-dicarboxylic acid benzenesulfonic acid tributyl Methyl phosphonium salt, 2,6-dicarboxylic acid naphthalene-4-sulfonic acid tetrabutylphosphonium salt, 2,6-dicarboxylic acid naphthalene-4-sulfonic acid tetramethylphosphonium salt, 3,5-dicarboxylic acid benzenesulfonic acid ammonium salt, etc.
- the polyester fiber preferably contains a metal sulfonate group-containing isophthalic acid component such as 5-sodium sulfoisophthalic acid or 5-potassium sulfoisophthalic acid, and dimethyl 5-sodium sulfoisophthalate is particularly preferred.
- polyester fibers containing 0.005 to 1 wt% of S element include polyester fibers containing a non-ester-forming sulfonate compound.
- a non-ester-forming sulfonate compound is a polyester fiber containing a sulfonate compound, without the sulfonate compound being directly esterified with the polyester and polycondensed to form a polyester.
- non-ester-forming sulfonate compounds include alkali metal salts of alkyl sulfonic acids or alkali metal salts of alkyl benzene sulfonic acids.
- alkali metal salt of alkyl sulfonic acid include sodium dodecyl sulfonate, sodium undecyl sulfonate, sodium tetradecyl sulfonate, and the like.
- alkali metal salt of alkylbenzene sulfonic acid examples include sodium dodecyl benzene sulfonate, sodium undecyl benzene sulfonate, sodium tetradecyl benzene sulfonate, and the like. From the viewpoint of processing stability, sodium dodecylbenzenesulfonate is particularly preferred.
- the total fineness of the water-absorbing polyester fiber is preferably about 8 to about 167 dtex, and more preferably about 22 to about 110 dtex.
- the single yarn fineness is not particularly limited, but about 0.5 to about 2.5 dtex is preferable from the viewpoint of the touch and the texture.
- matting agents such as titanium dioxide, stabilizers such as phosphoric acid, ultraviolet absorbers such as hydroxybenzophenone derivatives, crystallization nucleating agents such as talc, easy-lubricants such as famed silica, hindered phenols
- Antioxidants such as derivatives, flame retardants, antistatic agents, pigments, fluorescent brighteners, infrared absorbers, antifoaming agents and the like may be contained.
- the water-absorbing polyester fiber is preferably false twisted yarn.
- the crimp of the false twisted yarn preferably has a crimp elongation rate of 30 to 150%.
- the crimp elongation of the false twisted yarn is measured under the following conditions. The upper end of the crimped yarn is fixed, a load of 1.77 ⁇ 10 ⁇ 3 cN / dtex is applied to the lower end, and the length (A) after 30 seconds is measured.
- the wound body of this embodiment can be suitably obtained by subjecting it to alkali treatment in the state of a wound body of water-absorbing polyester fiber.
- the alkali treatment can be performed using a cheese dyeing machine.
- a cheese dyeing machine when a non-crimped thread is wound around a tube for cheese dyeing, it tends to collapse, and the tightness is caused by heat shrinkage, resulting in liquid permeability. This is not preferable because it may worsen and cause spots in the weight loss rate.
- the wound body of this embodiment can be manufactured by a method including a step of subjecting polyester fiber containing 0.005 to 1 wt% of S element to alkali weight reduction at a weight loss ratio of 0.6 to 9% with respect to the polyester fiber. it can.
- a chelating agent in the step of performing the alkali weight reduction, and to use an oligomer dispersant in combination during soaping and neutralization.
- a linear oligomer can be generated.
- the cyclic oligomer which is a white powder component, is not suddenly generated by alkali treatment (hydrolysis).
- the linear oligomer is the polymer on the polyester fiber surface, and the fiber surface It is presumed that the product is hydrolyzed with (and remains attached to the fiber surface), and the linear oligomer is released from the fiber surface and then dehydrated and condensed to form a cyclic oligomer. .
- the cyclic oligomer observed on the fiber surface is basically reattached.
- a chelating agent is used in combination with the alkali weight reduction.
- the cyclic oligomer remaining in the aqueous alkali solution remaining on the fiber is deposited at room temperature during ping, washing with water, and neutralization, so that it precipitates and adheres to the fiber surface. Therefore, the attached oligomer is dropped by using an oligomer dispersant together during soaping and neutralization.
- the weight loss rate of the polyester fiber is preferably 0.6 to 9%, more preferably 1 to 8%, and still more preferably 1.5 to 7% as the alkali treatment condition. preferable.
- the weight loss rate can be calculated from the weight of the polyester yarn before and after the alkali treatment. If the weight loss rate is less than 0.6%, it is not preferable because water absorption due to alkali treatment does not occur, and if the weight loss rate is more than 9%, the alkali weight loss is excessively advanced, and the durability of water absorption is inferior.
- Polyester fibers containing an ester-forming sulfonate compound in an amount of 0.5 to 5 mol% have a faster alkali weight loss rate than ordinary polyester fibers, and therefore it is preferable to adjust the alkali to a low concentration before treatment.
- the polyester fiber containing 0.005 to 1 wt% of S element is subjected to alkali treatment by a method using a cheese dyeing machine so that the weight loss rate is 0.6 to 9% in the state of yarn, A method of forming a fabric using part of the polyester fiber is preferably used.
- the winding amount of the polyester fiber containing 0.005 to 1 wt% of S element is preferably 0.5 to 4 kg, more preferably 1 to 3.5 kg, and further preferably 2 to 3 kg.
- the productivity is inferior, which is not preferable.
- the amount of winding exceeds 4 kg, the liquid passing through the alkali treatment with a cheese dyeing machine becomes worse, and the weight loss rate tends to vary, and the winding diameter becomes larger, resulting in poor handling.
- the winding density of the polyester fiber containing 0.005 to 1 wt% of the S element is preferably more than 0.1 and less than 1.2 g / cm 3 , more preferably more than 0.2 and less than 1.0 g / cm 3 , still more preferably. More than 0.3 and less than 0.8 g / cm 3 , particularly preferably more than 0.4 and less than 0.6 g / cm 3 .
- the winding density is 0.1 g / cm 3 or less, the winding form collapses during alkali treatment in a cheese dyeing machine, and unraveling failure occurs during knitting.
- the winding density is 1.2 g / cm 3 or more, liquid permeability during alkali treatment is poor and uniform treatment cannot be performed, and water absorption is uneven.
- the polyester fiber containing 0.005 to 1 wt% of S element is subjected to alkali treatment with a jet dyeing machine, etc., it is rewound with a winder to form a wound body. Not only is the process costly and expensive, but the wrinkle contains an alkali treatment liquid, and the crimp of the false twisted yarn is extended by its own weight.
- Alkali weight loss conditions In the case of alkali treatment in a cheese dyeing machine, inner and outer layer spots are likely to occur. Therefore, treatment at a low concentration for a long time is preferable. To achieve a weight loss rate of 0.6 to 9%, for example, sodium hydroxide is used. The treatment is preferably carried out at a concentration of 0.1 g / L to 10 g / L at 90 ° C. to 100 ° C. for 40 minutes to 100 minutes, more preferably sodium hydroxide at a concentration of 5 g / L to 10 g / L at 90 to 95 ° C. For 50 to 80 minutes.
- a cyclic oligomer that causes white powder is generated. It is preferable to add a chelating agent because the cyclic oligomer is easily affected by metal ions in the aqueous solution at the time of alkali treatment, and becomes easier to adhere to the fiber surface by chelation.
- a chelating agent for example, polycarboxylic acid, nitrilotriacetic acid (NTA), ethylenediaminetetraacetic acid (EDTA), nitrilotrimethylenephosphonic acid, hydroxyethylidene diphosphonic acid (NTMP), Examples thereof include phosphonic acid, glutamic acid diacetic acid, and salts thereof.
- the chelating agent is preferably added in an amount of 0.5 to 2.0 g / L in the aqueous solution during the alkali treatment.
- the cyclic oligomer in the alkaline aqueous solution is dissolved when the liquid temperature is high, but is precipitated when the liquid temperature is lower than 90 ° C. For this reason, precipitation and adhesion of the cyclic oligomer can be suppressed by draining at a high temperature of 90 to 95 ° C. after the alkali treatment.
- Amine nonionic compound, alkylene oxide adduct of fatty acid, polycyclic nonionic compound, alkyl sulfonate, polyhydric alcohol fatty acid ester, alkylene oxide of polyhydric alcohol fatty acid Components such as an adduct, an aromatic polyester resin, a carboxylate, and a polyaminocarboxylate can be used alone or in combination.
- Amphoteric surfactants are preferably used in order to prevent adhesion of oligomers in both alkaline and acidic and to remove the adhered oligomers.
- the oligomer dispersant is preferably added at 0.5 to 3.0 g / L during soaping.
- the effect of preventing oligomer adhesion and the effect of removing oligomer are inferior, and the amount of white powder deposited cannot be reduced.
- the addition amount of the oligomer dispersant exceeds 3.0 g / L, the white powder adhesion amount can be reduced.
- the linear oligomer contributing to the water absorption is also removed from the fiber surface, the water absorption is deteriorated. End up.
- oxalic acid or acetic acid is preferably used as the acid used for neutralization. Also in this case, precipitation and adhesion of the oligomer can be suppressed when it becomes acidic by using the oligomer dispersant together.
- an oligomer dispersing agent used in the case of neutralization In order to prevent adhesion of an oligomer in both alkaline and acidic, an amphoteric surfactant is used preferably.
- the wound yarn body of the present embodiment may be subjected to a softening agent treatment for softening the texture, an unwinding property of the yarn, and an oiling treatment to improve the knit knitting property in a bath. It is not preferable to use an agent or silicone oil that inhibits water absorption.
- the wound body of the present embodiment may be a wound body that is subjected to an alkali treatment with a cheese dyeing machine and then wound back with a winder.
- the present invention will be described specifically by way of examples. Of course, the present invention is not limited to these.
- the wound body obtained in the Example was evaluated by the following method. (1) Amount of white powder attached The method described above was used.
- Example 1 Polyester false twisted yarn (S element content 0.14 wt%) containing 2 mol% of dimethyl-5-sulfonic acid sodium isophthalate and having a round cross section of 0.5 g / cm 3 And wound with a winding amount of 3.0 kg.
- the aqueous solution was heated at 2 ° C./min and subjected to alkali treatment at a liquid temperature of 95 ° C. for 60 minutes.
- Example 2 1 g / L of Marpon A-47 is used as a chelating agent during alkali treatment, 1 g / L of Marpon PS-K7 is used as an oligomer dispersant during soaping, and 0.5 g of Marpon PS-K7 as an oligomer dispersant during neutralization Except for the use of / L, the treatment was performed in the same manner as in Example 1 to obtain a wound body.
- the weight loss rate of the water-absorbent polyester fiber of the obtained wound body is 6.0%.
- JIS L0217 1995
- JIS L1096 2010
- the water absorption after 30 washes in the F-2 medium temperature washer method was 2 seconds.
- the amount of white powder adhered was 0.23 wt%.
- Example 3 A wound body was obtained in the same manner as in Example 1 except that 2 g / L of Marpon PS-K7 was used as an oligomer dispersant during neutralization.
- the weight loss rate of the water-absorbent polyester fiber of the obtained wound body is 6.0%.
- JIS L0217: 1995 Water absorption after washing 30 times by 103 C method in Appendix Table 1 is 4 seconds
- JIS L1096: 2010 F The water absorption after washing 30 times in the medium temperature washer method was 15 seconds.
- the amount of white powder adhered was 0.05 wt%.
- the alkali treatment was performed by using a cheese dyeing machine, raising the temperature of an alkaline aqueous solution using 10 g / L of sodium hydroxide under the condition of 2 ° C./min, and performing the alkali treatment at a liquid temperature of 95 ° C. for 60 minutes. After the alkali treatment, drainage was immediately performed at 95 ° C., water was poured, soaping was performed at a liquid temperature of 80 ° C.
- Example 5 A wound body was obtained in the same manner as in Example 1 except that the drainage temperature after alkali reduction was 70 ° C.
- the weight loss rate of the water-absorbing polyester fiber of the obtained winding value is 6.0%.
- JIS L0217: 1995 Water absorption after 30 washings by 103 C method in Appendix Table 1 is 6 seconds
- JIS L1096: 2010 F -The water absorption after 30 washes in the medium temperature washer method was 13 seconds.
- the amount of white powder adhered was 0.82 wt%.
- Example 6 A wound body was obtained in the same manner as in Example 1 except that 6 g / L of Marpon PS-K7 was used as an oligomer dispersant during neutralization.
- the weight loss rate of the water-absorbing polyester fiber of the obtained wound body is 6.0%.
- JIS L0217: 1995 Water absorption after washing 30 times by 103 C method of Attached Table 1 is 7 seconds
- JIS L1096: 2010 F The water absorption after washing 30 times in the medium temperature washer method was 15 seconds.
- the amount of white powder adhered was 0.03 wt%.
- Example 7 A wound body was obtained in the same manner as in Example 1 except that 6 g / L of Marpon PS-K7 was used as an oligomer dispersant during soaping.
- the weight loss rate of the water-absorbent polyester fiber of the obtained wound body is 6.0%.
- JIS L0217: 1995 Water absorption after washing 30 times by 103 C method in Appendix Table 1 is 8 seconds
- JIS L1096: 2010 F The water absorption after washing 30 times in the medium temperature washer method was 15 seconds.
- the amount of white powder adhered was 0.03 wt%.
- Example 8 A wound body was obtained in the same manner as in Example 1 except that 84 dtex / 36f round cross-section polyester false twist yarn of regular polyester not containing sulfonic acid was used.
- the water-absorbent polyester fiber of the obtained wound body has a water absorption of 180 seconds or more after 30 washings by 103 C method in Appendix Table 1 and washing by JIS L1096: 2010 F-2 medium temperature washer method 30
- the water absorption after the rotation was 180 seconds or more.
- the amount of white powder adhered was 0.02 wt%.
- Table 2 summarizes the production conditions and physical property values of the polyester wound bodies obtained in Examples 1 to 3 and Comparative Examples 1 to 8.
- the wound body of the water-absorbing polyester fiber of the present invention does not generate white powder in the winding-up process or knitting process, absorbs water semipermanently even when not subjected to water-absorbing processing, and quickly absorbs sweat when worn. Since it is comfortable, soft and soft to the touch, it can be suitably used for innerwear, sportswear and the like.
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Abstract
Description
例えば、以下の特許文献1には、ポリエステル繊維にアルカリ加工を施した後、親水剤を含む処理液で処理することにより、吸水性を有するポリエステル繊維織編物を製造することが記載されている。しかしながら、通常のポリエステルにアルカリ加工及び親水加工したものでは、洗濯繰返しにより性能が低下するため、洗濯耐久性のある吸水性を付与することはできていない。
また、この白粉が付着した糸を使用して製編織する際にも、編機や織機の糸道やガイドに白粉として付着してしまうため、摩擦抵抗値が高くなり編立時の張力変動を起こす要因となり得るという問題もある。また、白粉が編機内に持ち込まれていくと、編針のベラに付着し蓄積していくとベラの動きが悪くなり編目形成を阻害するものとなり、また、白粉が編機の釜の針溝に付着し蓄積していくと編針の動きが悪くなり、針折れやバット折れ等のトラブルが発生する要因となるという問題もある。
[1]JIS L0217:1995 103 C法による洗濯30回後のJIS L1907:2010 滴下法による吸水性が5秒以下である吸水性ポリエステル繊維の巻糸体であって、該吸収性ポリエステル繊維を構成するポリエステルの分解産物である環状オリゴマーを含有する白粉の付着量が0.3wt%未満であることを特徴とする前記巻糸体。
[2]前記吸水性ポリエステル繊維が、S元素を0.005~1wt%含有し、該ポリエステルの繰り返し単位の95モル%以上がエチレンテレフタレートである、前記[1]に記載の巻糸体。
[3]前記吸水性ポリエステル繊維の表面に、下記式(1):
[4]前記吸水性ポリエステル繊維の巻量が、巻糸体1本あたり0.5~4kgである、前記[1]~[3]のいずれかに記載の巻糸体。
[5]前記吸水性ポリエステル繊維が、仮撚糸である、前記[1]~[4]のいずれかに記載の巻糸体。
[6]前記吸水性ポリエステル繊維が、ニットループ形状の捲縮を有さない、前記[1]~[5]のいずれかに記載の巻糸体。
[7]前記S元素を0.005~1wt%含有するポリエステル繊維に、該ポリエステル繊維に対する減量率0.6~9%でアルカリ減量を施す工程を含む、前記[2]~[6]のいずれかに記載の巻糸体の製造方法。
[8]前記アルカリ減量を施す工程でキレート剤を併用し、ソーピング時及び中和時にオリゴマー分散剤を併用することを特徴とする、前記[7]に記載の方法。
本実施形態の巻糸体を構成する吸水性ポリエステル繊維は、該繊維を用いて編物を作りその吸水性を測定するとき、JIS L0217:1995 103 C法による洗濯30回後の吸水性(JIS L1907:2010 滴下法)が5秒以下である。洗濯30回後の吸水性は3秒以下が好ましく、2秒以下がより好ましく、1秒以下がさらに好ましい。同法による洗濯1回後の吸水性も5秒以下であることが好ましく、3秒以下がより好ましく、2秒以下が更に好ましく、1秒以下が特に好ましい。本実施形態の巻糸体を構成するポリエステル繊維は、該洗濯回数50回、100回後も吸水性を保持することができ、50回、100回後も吸水性が5秒以下となるのがさらに好ましい。洗濯時の洗剤は中性洗剤、弱アルカリ性洗剤等通常の洗剤が好適に用いられる。
図1を参照して説明すると、巻糸体1から引き出された糸2は、スネールガイド3(湯浅糸道工業株式会社製、型番A408067-R)、リングテンサー4(株式会社東洋製作所製、型番HRB6-12)、トラバースガイド5(湯浅糸道工業株式会社製、型番A408132-R)の順に通した後、糸巻き枠6(巻取枠周1.0m)で巻き取る。
巻糸体1を置く床面からスネールガイド3までの高さを800mmとし、巻糸体1はスネールガイド3の導糸孔の中心からの垂線が巻糸体1の中心軸と重なるように置いた。スネールガイド3からリングテンサー4の入糸孔までの高さを400mmとし、スネールガイド3からリングテンサー4の入糸孔に入る糸2の角度は90度とした。リングテンサー4での荷重は1.2gのリングを6本全て使用した。トラバースガイド5の位置はリングテンサー4の出糸孔からの水平距離で250mmとし、リングテンサー4の出糸孔の高さより50mm低い位置とした。糸巻き枠6の位置はトラバースガイド5の導糸孔の高さと糸巻き枠6の回転軸の中心を同じ高さとし、トラバースガイド5から糸巻き枠6の回転軸の中心までの距離を533mmとした。トラバースガイド5の振り幅は50mm、トラバース速度は120mm/分、巻き取り速度120m/分で、約1000mを糸巻き枠6に巻取る。
糸を巻き取った際にスネールガイド3、リングテンサー4、トラバースガイド5に白粉が付着するが、これらを全て回収することが困難であることと、付着した白粉が糸との摩擦により周囲に飛び散ってしまうため、糸の白粉付着量を巻き取った糸の重量変化を下記式:
白粉付着量(wt%)=(A-B-C)/C×100
{式中、A:巻糸体の巻き返し前の重量(g)、B:巻糸体の巻き返し後の重量(g)、そしてC:巻き返した糸の重量(g)である。}により算出した。
白粉の付着量は、0.3wt%未満であり、好ましくは0.2wt%未満、より好ましくは0.1wt%未満である。白粉の付着量が0.3wt%を超えると解舒性が悪化したり、編機、織機、ワインダー等のガイドや糸道への白粉の付着が酷くなり、白粉が蓄積されることにより張力異常や工程トラブルを引き起こす。
該オリゴマー成分は、以下に記す分析手法によって定性、定量することによってその存在を確認することができる。
かかる末端カルボン酸直鎖オリゴマー成分のうち、比較的低分子のオリゴマー成分はTHFに溶解し、LC/MS(液体クロマトグラフィー質量分析法)で分析することができる。その代表的成分をn=4とすると、繊維表面に存在するn=4のオリゴマー成分は、以下の方法で測定することができる。
このように末端カルボン酸直鎖オリゴマーは、吸水性に寄与するが、例えば、以下の式(2):
吸水性ポリエステル繊維には、二酸化チタン等の艶消剤、リン酸等の安定剤、ヒドロキシベンゾフェノン誘導体等の紫外線吸収剤、タルク等の結晶化核剤、フェームドシリカ等の易滑剤、ヒンダードフェノール誘導体等の抗酸化剤、難燃剤、制電剤、顔料、蛍光増白剤、赤外線吸収剤、消泡剤等が含有されていてもよい。
捲縮糸の上端を固定し、下端に1.77×10-3cN/dtexの荷重をかけ、30秒後の長さ(A)を測定する。次いで、1.77×10-3cN/dtexの荷重を取り外し、0.088cN/dtexの荷重をかけ、30秒後の長さ(B)を測定し、下記式(3):
捲縮伸長率(%)={(B-A)/A}×100 ...(3)
により捲縮伸長率を求める:
チーズ染色機でのアルカリ処理の場合、捲縮のない糸をチーズ染色用のチューブに巻きつけた場合、巻崩れが発生しやすく、また、熱収縮によって巻締りが発生することで液通り性が悪くなり減量率に斑が発生してしまうおそれがあり好ましくない。
ポリエステル繊維表面のポリマーをアルカリ処理(加水分解)すると、直鎖オリゴマーを生成させることができる。特定の理論に拘束されるものではないが、白粉成分である環状オリゴマーは、アルカリ処理(加水分解)によりいきなり生成されるのではなく、まず、直鎖オリゴマーが、ポリエステル繊維表面のポリマーが繊維表面で加水分解されることで(繊維表面に付いたまま)生成されると推測され、直鎖オリゴマーが繊維表面から遊離した後に、脱水縮合反応することで環状オリゴマーになるのではないかと推測される。繊維表面で観察される環状オリゴマーは基本的に再付着したもの。環状オリゴマーが高温のアルカリ水溶液に溶けている際、金属イオンの影響でキレート化すると考えられており、それを防止するためにアルカリ減量中にキレート剤を併用する。それでも繊維に付着して残っているアルカリ水溶液に存在する環状オリゴマーはピングや水洗、中和の際に常温の水を注水し低温になったため析出し、繊維表面に付着してくる。そのため、ソーピング時及び中和時にオリゴマー分散剤を併用することで付着したオリゴマーを落としている。
吸水性を発現させるために、アルカリ処理の条件としてはポリエステル繊維の減量率を好ましくは0.6~9%、より好ましくは1~8%、さらに好ましくは1.5~7%にすることが好ましい。減量率はアルカリ処理前後のポリエステル糸の重量から算出できる。減量率が0.6%未満の場合にはアルカリ処理による吸水性が発現しないため好ましくなく、減量率が9%より大きいとアルカリ減量が進みすぎるため、吸水性の耐久性に劣るため好ましくない。
エステル形成性スルホン酸塩化合物を0.5~5モル%含有するポリエステル繊維は、通常のポリエステル繊維に比べアルカリ減量の速度が速いため、アルカリを低濃度に調整し、処理することが好ましい。
アルカリ処理の方法としてはS元素を0.005~1wt%含有するポリエステル繊維を糸の状態で0.6~9%の減量率になるようにチーズ染色機を用いる方法などでアルカリ処理を施し、該ポリエステル繊維を一部に用いて布帛を形成する方法が好適に用いられる。
チーズ染色機を用いてアルカリ処理を行う場合、チーズ染色用の穴開きチューブにポリエステル繊維を巻きつける必要がある。
この時、S元素を0.005~1wt%含有するポリエステル繊維の巻量は、0.5~4kgが好ましく、より好ましくは1~3.5kg、更に好ましくは2~3kgである。巻量が0.5kg未満であると生産性に劣り好ましくない。巻量が4kgを超えるとチーズ染色機でアルカリ処理を行う際の液通りが悪くなり減量率にバラツキが出やすくなるとともに、巻径も大きくなり取扱い性が悪くなる。
S元素を0.005~1wt%含有するポリエステル繊維の巻密度は、0.1超1.2g/cm3未満が好ましく、より好ましくは0.2超1.0g/cm3未満、更に好ましくは0.3超0.8g/cm3未満、特に好ましくは0.4超0.6g/cm3未満である。巻密度が0.1g/cm3以下であるとチーズ染色機でのアルカリ処理時に巻形態が崩れ、編立時に解舒不良が生じる。また、巻密度が1.2g/cm3以上であるとアルカリ処理時の液通り性が悪く均一な処理ができずに吸水性に斑ができる。
また、ニットデニットの手法を用いてS元素を0.005~1wt%含有するポリエステル繊維を一旦編地にし、アルカリ処理を施した後、改編し巻糸体とする手法も挙げられるが、該ポリエステル繊維にニットループ形状の捲縮が付与されてしまう。ここで言うニットループとは、編地にした際に形成される編目が熱処理によって固定され、編地を改編した際に糸に付与されているループ状のクリンプのことであり、この糸を用いて編地や織物とした際に独特の風合いとなるためあまり好ましくない。
S元素を0.005~1wt%含有するポリエステル繊維を綛にして噴射式染色機等でアルカリ処理を施した後、ワインダーで巻き返して巻糸体とする手法も挙げられるが、綛揚工程と巻き返し工程で人手が掛かり高コストとなるだけでなく、綛がアルカリ処理液を含むことで自重により仮撚糸の捲縮が伸びてしまうため、好ましくない。
チーズ染色機でのアルカリ処理の場合、内外層斑が発生しやすいため、低濃度での長時間の処理が好ましく、減量率を0.6~9%にするには、例えば、水酸化ナトリウムを0.1g/L~10g/Lの濃度で90℃~100℃で40分~100分処理することが好ましく、さらに好ましくは水酸化ナトリウムを5g/L~10g/Lの濃度で90~95℃で50分~80分処理することである。
排液後の巻糸体にはアルカリ溶液が残っているため、洗浄を行う必要がある。排液後、チーズ染色機に注水を行い、ハイドロサルファイトナトリウムを0.5~2.0g/L、オリゴマー分散剤を添加し80℃で10分間の洗浄を行った後、40~60℃の温水で10分間の湯洗を2回以上行った後に常温にて水洗することが好ましい。
使用するオリゴマー分散剤としては、特に限定されるものでないが、アミン系ノニオン化合物、脂肪酸のアルキレンオキサイド付加物、多環系ノニオン化合物、アルキルスルホネート、多価アルコール脂肪酸エステル、多価アルコール脂肪酸のアルキレンオキサイド付加物、芳香族系ポリエステル樹脂、カルボン酸塩、ポリアミノカルボン酸塩等の成分を単独で又は併用して使用することができる。アルカリ性及び酸性のいずれにおいてもオリゴマーの付着を防止し、付着したオリゴマーを除去するため、両性界面活性剤が好ましく用いられる。オリゴマー分散剤はソーピング時に0.5~3.0g/L添加することが好ましい。0.5g/L未満であるとオリゴマーの付着防止効果、オリゴマーの除去効果に劣り白粉付着量を減らすことができない。また、オリゴマー分散剤の添加量が3.0g/Lを超えると白粉付着量を減らすことはできるが、吸水性に寄与する直鎖オリゴマーも繊維表面から除去してしまうため吸水性が悪化してしまう。
中和で使用する酸にはシュウ酸や酢酸が好ましく用いられる。その際にもオリゴマー分散剤を併用することで酸性になった際にオリゴマーの析出及び付着を抑制することができる。
中和の際に使用するオリゴマー分散剤としては、特に限定されるものでないが、アルカリ性及び酸性のいずれにおいてもオリゴマーの付着を防止するため、両性界面活性剤が好ましく用いられる。
本実施形態の巻糸体には染色を施してもよい。先染糸として使用する場合は、チーズ染色機でアルカリ処理後を行った後、そのままチーズ染色を行ってもよい。
本実施形態の巻糸体には風合いを柔らかくするための柔軟剤処理や糸の解舒性、ニットの編成性を向上させるためにオイリング処理を浴中で行ってもよいが、カチオン性の柔軟剤やシリコンオイルなど吸水性を阻害するものを使用することは好ましくない。
また、本実施形態の巻糸体はチーズ染色機でのアルカリ処理を施した後、ワインダーで巻き返して巻糸体としたものでもよい。
尚、実施例で得た巻糸体を、以下の方法で評価した。
(1)白粉付着量
上述の方法を用いた。
上述の方法を用いた。
巻糸体から糸を引き出して筒編地を作製し、得られた筒編地を常法にて精練、乾燥した後、得られた筒編地の吸水性を、JIS L0217:1995 103 C法による洗濯30回後のJIS L1907:2010 滴下法を用いて測定した。本明細書中、得られた吸水性を、「吸収性ポリエステル繊維の」吸水性とした。
巻糸体から糸を引き出して筒編地を作製し、得られた筒編地を常法にて精練、乾燥した後、得られた筒編地をJIS L0217:1995 付表1の103 C法により、洗剤は弱アルカリ性洗剤(商品名花王(株) アタック)を使用して洗濯処理した。
巻糸体から糸を引き出して筒編地を作製し、得られた筒編地を常法にて精練、乾燥した後、得られた筒編地を工業洗濯試験を想定し、JIS L1096:2010 8.39.5 b) 2.2.2)F-2中温ワッシャー法の条件で洗浄剤として石鹸0.8%owf、過酸化水素0.8%owf、珪酸ソーダ0.8%owfを使用して洗濯処理した。
巻糸体から糸を引き出し、荷重を掛けない状態で糸の形態を観察した。その際に編地由来のループ状のクリンプが存在するか確認した。
ナトリウムイソフタル酸ジメチル-5-スルホン酸を2モル%含有する84dtex/36f丸断面のポリエステル仮撚糸(S元素含有率0.14wt%)をチーズ染色用穴開きチューブに巻密度0.5g/cm3、巻量3.0kgで巻き付けた。
チーズ染色機に糸を巻いたチューブをセットし、水酸化ナトリウムを10g/L、キレート剤としてマーポンA-47(松本油脂製薬(株)製、ポリカルボン酸配合品)を2g/L使用したアルカリ水溶液を2℃/minの条件で昇温し、液温95℃で60分間アルカリ処理を施した。
アルカリ処理後、液温95℃で直ちに排水を行った後、注水を行い、ハイドロサルファイトナトリウムを1g/L、オリゴマー分散剤としてマーポンPS-K7(松本油脂製薬(株)製、両性界面活性剤配合品)を2g/Lを使用し、液温80℃で15分間ソーピングを行った後、排水し、液温60℃で3分間の湯洗を2回行った。
湯洗後、排水し、再度給水した後、オリゴマー分散剤としてマーポンPS-K7を1g/L使用した後、酢酸を用いて中和を行い、水洗した。
排水後に、チーズ染色機から糸を巻いたチューブを取り出し、遠心脱水機にて脱水後、チーズ乾燥機にて乾燥を行い、巻糸体を得た。
得られた巻糸体の吸水性ポリエステル繊維の減量率は6.0%であり、JIS L0217:1995 付表1の103 C法での洗濯30回後の吸水性は、1秒未満、JIS L1096:2010 F-2中温ワッシャー法での洗濯30回後の吸水性は2秒であった。白粉の付着量は0.10wt%であった。
アルカリ処理時にキレート剤としてマーポンA-47を1g/L使用し、ソーピング時にオリゴマー分散剤としてマーポンPS-K7を1g/Lを使用し、中和時にオリゴマー分散剤としてマーポンPS-K7を0.5g/L使用した以外は実施例1と同様の方法で処理を行い、巻糸体を得た。得られた巻糸体の吸水性ポリエステル繊維の減量率は6.0%であり、JIS L0217:1995 付表1の103 C法での洗濯30回後の吸水性は1秒未満、JIS L1096:2010 F-2中温ワッシャー法での洗濯30回後の吸水性は2秒であった。白粉の付着量は0.23wt%であった。
中和時にオリゴマー分散剤としてマーポンPS-K7を2g/L使用した以外は実施例1と同様の方法で処理を行い、巻糸体を得た。
得られた巻糸体の吸水性ポリエステル繊維の減量率は6.0%であり、JIS L0217:1995 付表1の103 C法での洗濯30回後の吸水性は4秒、JIS L1096:2010 F-2中温ワッシャー法での洗濯30回後の吸水性は15秒であった。白粉の付着量は0.05wt%であった。
ナトリウムイソフタル酸ジメチル-5-スルホン酸を2モル%含有する84dtex/36f丸断面のポリエステル仮撚糸(S元素含有率0.14wt%)をチーズ染色用穴開きチューブに巻密度0.5g/cm3、巻量3.0kgで巻き付けた。
アルカリ処理はチーズ染色機を用い、水酸化ナトリウムを10g/L使用したアルカリ水溶液を2℃/minの条件で昇温し、液温95℃で60分間アルカリ処理を施した。
アルカリ処理後、95℃で直ちに排水を行った後、注水を行い、液温80℃で15分間ソーピングを行った後、排水し、液温60℃で3分間の湯洗を2回行った。
湯洗後、排水し、再度給水した後、酢酸を用いて中和を行い、水洗した。
排水後に、チーズ染色機から取り出し、遠心脱水機にて脱水後、チーズ乾燥機にて乾燥を行い、巻糸体を得た。
得られた巻糸体の吸水性ポリエステル繊維の減量率は6.0%であり、JIS L0217:1995 付表1の103 C法での洗濯30回後の吸水性は15秒、JIS L1096:2010 F-2中温ワッシャー法での洗濯30回後の吸水性は15秒であった。白粉の付着量は0.73wt%であった。
ソーピング時にオリゴマー分散剤としてマーポンA-47を2g/Lを使用した以外は比較例1と同様の処理を施し、巻糸体を得た。
得られた巻糸体の吸水性ポリエステル繊維の減量率は6.0%であり、JIS L0217:1995 付表1の103 C法での洗濯30回後の吸水性は1秒未満、JIS L1096:2010 F-2中温ワッシャー法での洗濯30回後の吸水性は2秒であった。白粉の付着量は0.64wt%であった。
ソーピング時にオリゴマー分散剤としてマーポンA-47を2g/L使用し、中和時のオリゴマー分散剤としてマーポンPS-K7を1g/L使用した以外は比較例1と同様の処理を施し、巻糸体を得た。
得られた巻糸体の吸水性ポリエステル繊維の減量率は6.0%であり、JIS L0217:1995 付表1の103 C法での洗濯30回後の吸水性は1秒未満、JIS L1096:2010 F-2中温ワッシャー法での洗濯30回後の吸水性は2秒であった。白粉の付着量は0.52wt%であった。
アルカリ処理時にオリゴマー分散剤としてマーポンA-47を2g/L使用した以外は比較例1と同様の処理を施し、巻糸体を得た。
得られた巻糸体の吸水性ポリエステル繊維の減量率は6.0%であり、JIS L0217:1995 付表1の103 C法での洗濯30回後の吸水性は1秒未満、JIS L1096:2010 F-2中温ワッシャー法での洗濯30回後の吸水性は2秒であった。白粉の付着量は0.47wt%であった。
アルカリ減量後の排液温度を70℃とした以外は実施例1と同様の処理を施し、巻糸体を得た。
得られた巻糸値の吸水性ポリエステル繊維の減量率は6.0%であり、JIS L0217:1995 付表1の103 C法での洗濯30回後の吸水性は6秒、JIS L1096:2010 F-2中温ワッシャー法での洗濯30回後の吸水性は13秒であった。白粉の付着量は0.82wt%であった。
中和時にオリゴマー分散剤としてマーポンPS-K7を6g/L使用した以外は実施例1と同様の処理を施し、巻糸体を得た。
得られた巻糸体の吸水性ポリエステル繊維の減量率は6.0%であり、JIS L0217:1995 付表1の103 C法での洗濯30回後の吸水性は7秒、JIS L1096:2010 F-2中温ワッシャー法での洗濯30回後の吸水性は15秒であった。白粉の付着量は0.03wt%であった。
ソーピング時にオリゴマー分散剤としてマーポンPS-K7を6g/L使用した以外は実施例1と同様の処理を施し、巻糸体を得た。
得られた巻糸体の吸水性ポリエステル繊維の減量率は6.0%であり、JIS L0217:1995 付表1の103 C法での洗濯30回後の吸水性は8秒、JIS L1096:2010 F-2中温ワッシャー法での洗濯30回後の吸水性は15秒であった。白粉の付着量は0.03wt%であった。
スルホン酸を含有しないレギュラーポリエステルの84dtex/36f丸型断面ポリエステル仮撚糸を使用した以外は実施例1と同様の処理を施し、巻糸体を得た。
得られた巻糸体の吸水性ポリエステル繊維のJIS L0217:1995 付表1の103 C法での洗濯30回後の吸水性は180秒以上、JIS L1096:2010 F-2中温ワッシャー法での洗濯30回後の吸水性は180秒以上であった。白粉の付着量は0.02wt%であった。
2 糸
3 スネールガイド
4 リングテンサー
5 トラバースガイド
6 糸巻き枠
Claims (8)
- JIS L0217:1995 103 C法による洗濯30回後のJIS L1907:2010 滴下法による吸水性が5秒以下である吸水性ポリエステル繊維の巻糸体であって、該吸収性ポリエステル繊維を構成するポリエステルの分解産物である環状オリゴマーを含有する白粉の付着量が0.3wt%未満であることを特徴とする前記巻糸体。
- 前記吸水性ポリエステル繊維が、S元素を0.005~1wt%含有し、該ポリエステルの繰り返し単位の95モル%以上がエチレンテレフタレートである、請求項1に記載の巻糸体。
- 前記吸水性ポリエステル繊維の巻量が、巻糸体1本あたり0.5~4kgである、請求項1~3のいずれか1項に記載の巻糸体。
- 前記吸水性ポリエステル繊維が、仮撚糸である、請求項1~4のいずれか1項に記載の巻糸体。
- 前記吸水性ポリエステル繊維が、ニットループ形状の捲縮を有さない、請求項1~5のいずれか1項に記載の巻糸体。
- 前記S元素を0.005~1wt%含有するポリエステル繊維に、該ポリエステル繊維に対する減量率0.6~9%でアルカリ減量を施す工程を含む、請求項2~6のいずれか1項に記載の巻糸体の製造方法。
- 前記アルカリ減量を施す工程でキレート剤を併用し、さらにソーピング時及び中和時にオリゴマー分散剤を併用する、請求項7に記載の方法。
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- 2016-12-28 WO PCT/JP2016/089171 patent/WO2018123043A1/ja unknown
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CN110088386A (zh) | 2019-08-02 |
KR20190080946A (ko) | 2019-07-08 |
US20190338448A1 (en) | 2019-11-07 |
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