CN1229530C - Polyester based thermally adhesive composite short fiber - Google Patents
Polyester based thermally adhesive composite short fiber Download PDFInfo
- Publication number
- CN1229530C CN1229530C CNB028010647A CN02801064A CN1229530C CN 1229530 C CN1229530 C CN 1229530C CN B028010647 A CNB028010647 A CN B028010647A CN 02801064 A CN02801064 A CN 02801064A CN 1229530 C CN1229530 C CN 1229530C
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- CN
- China
- Prior art keywords
- short fiber
- polyester
- fiber
- composite short
- area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000000835 fiber Substances 0.000 title claims abstract description 178
- 239000002131 composite material Substances 0.000 title claims abstract description 70
- 229920000728 polyester Polymers 0.000 title claims abstract description 67
- 239000000853 adhesive Substances 0.000 title abstract 5
- 230000001070 adhesive effect Effects 0.000 title abstract 5
- 230000009477 glass transition Effects 0.000 claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 229920001283 Polyalkylene terephthalate Polymers 0.000 claims abstract description 17
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 34
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 29
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 27
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 21
- 229920001400 block copolymer Polymers 0.000 claims description 17
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 229920000570 polyether Polymers 0.000 claims description 14
- -1 polyethylene terephthalate Polymers 0.000 claims description 13
- 229920001634 Copolyester Polymers 0.000 claims description 12
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 12
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- 239000000470 constituent Substances 0.000 claims description 7
- 150000002009 diols Chemical class 0.000 claims description 6
- 229920001515 polyalkylene glycol Polymers 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 3
- YZTJKOLMWJNVFH-UHFFFAOYSA-N 2-sulfobenzene-1,3-dicarboxylic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1S(O)(=O)=O YZTJKOLMWJNVFH-UHFFFAOYSA-N 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims 1
- 230000008018 melting Effects 0.000 abstract 2
- 238000002844 melting Methods 0.000 abstract 2
- 239000004745 nonwoven fabric Substances 0.000 abstract 2
- 239000013078 crystal Substances 0.000 abstract 1
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 239000000306 component Substances 0.000 description 47
- 230000000052 comparative effect Effects 0.000 description 14
- 238000009987 spinning Methods 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 9
- 239000002202 Polyethylene glycol Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229920001707 polybutylene terephthalate Polymers 0.000 description 6
- 229920001223 polyethylene glycol Polymers 0.000 description 6
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 6
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 229920002560 Polyethylene Glycol 3000 Polymers 0.000 description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 4
- 238000007334 copolymerization reaction Methods 0.000 description 4
- TVIDDXQYHWJXFK-UHFFFAOYSA-N dodecanedioic acid Chemical compound OC(=O)CCCCCCCCCCC(O)=O TVIDDXQYHWJXFK-UHFFFAOYSA-N 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229920000305 Nylon 6,10 Polymers 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- UXFQFBNBSPQBJW-UHFFFAOYSA-N 2-amino-2-methylpropane-1,3-diol Chemical compound OCC(N)(C)CO UXFQFBNBSPQBJW-UHFFFAOYSA-N 0.000 description 2
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 description 2
- CGORERCPVAYUAZ-UHFFFAOYSA-N P(=O)(O)(O)O.C(CCCCCCCCCCC)[K] Chemical compound P(=O)(O)(O)O.C(CCCCCCCCCCC)[K] CGORERCPVAYUAZ-UHFFFAOYSA-N 0.000 description 2
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 description 2
- 229920001030 Polyethylene Glycol 4000 Polymers 0.000 description 2
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000001361 adipic acid Substances 0.000 description 2
- 235000011037 adipic acid Nutrition 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- PMMYEEVYMWASQN-IMJSIDKUSA-N cis-4-Hydroxy-L-proline Chemical compound O[C@@H]1CN[C@H](C(O)=O)C1 PMMYEEVYMWASQN-IMJSIDKUSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 2
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- PXGZQGDTEZPERC-UHFFFAOYSA-N 1,4-cyclohexanedicarboxylic acid Chemical compound OC(=O)C1CCC(C(O)=O)CC1 PXGZQGDTEZPERC-UHFFFAOYSA-N 0.000 description 1
- YCPXWRQRBFJBPZ-UHFFFAOYSA-N 5-sulfosalicylic acid Chemical compound OC(=O)C1=CC(S(O)(=O)=O)=CC=C1O YCPXWRQRBFJBPZ-UHFFFAOYSA-N 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- XEUCQOBUZPQUMQ-UHFFFAOYSA-N Glycolone Chemical compound COC1=C(CC=C(C)C)C(=O)NC2=C1C=CC=C2OC XEUCQOBUZPQUMQ-UHFFFAOYSA-N 0.000 description 1
- UWIULCYKVGIOPW-UHFFFAOYSA-N Glycolone Natural products CCOC1=C(CC=CC)C(=O)N(C)c2c(O)cccc12 UWIULCYKVGIOPW-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- FQORROGUIFBEFC-UHFFFAOYSA-N OC(=O)C1=CC([Na])=CC(C(O)=O)=C1S(O)(=O)=O Chemical compound OC(=O)C1=CC([Na])=CC(C(O)=O)=C1S(O)(=O)=O FQORROGUIFBEFC-UHFFFAOYSA-N 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 239000003429 antifungal agent Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 238000006664 bond formation reaction Methods 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- GWTCIAGIKURVBJ-UHFFFAOYSA-L dipotassium;dodecyl phosphate Chemical compound [K+].[K+].CCCCCCCCCCCCOP([O-])([O-])=O GWTCIAGIKURVBJ-UHFFFAOYSA-L 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 229940051250 hexylene glycol Drugs 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 1
- 239000008041 oiling agent Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229940033623 potassium lauryl phosphate Drugs 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
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
- 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
-
- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
-
- 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
- D06M15/507—Polyesters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2904—Staple length fiber
- Y10T428/2907—Staple length fiber with coating or impregnation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2904—Staple length fiber
- Y10T428/2909—Nonlinear [e.g., crimped, coiled, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Multicomponent Fibers (AREA)
- Nonwoven Fabrics (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
A polyester based thermally adhesive composite short fiber which comprises an amorphous polyester having a glass transition temperature of 50 to 100 DEG C. and no crystal melting point as a thermally adhesive component and a polyalkylene terephthalate having a melting point of 220 DEG C. or higher as a fiber forming component, and has a number of crimp of 3 to 40/25 mm, a percentage of crimp of 3 to 40 % and a percentage of shrinkage of web area of 20 % or less, the percentage of shrinkage of web area (%) being represented by (A0 - A1)/A0 X 100 when, after a card web non-woven fabric being composed of the polyester based thermally adhesive composite short fiber alone and having an area of A0 and a METSUKE of 30 g/m<2> is allowed to stand in a hot air dryer kept at 150 DEG C. for 2 minutes, the card web non-woven fabric has an area of A1. The polyester based thermally adhesive composite short fiber can be used for manufacturing a high quality fiber structure exhibiting good dimensional stability and being less susceptible to deformation even when used in a high temperature atmosphere.
Description
Technical field
The present invention relates to be applicable to the polyester-based heat bonding composite short fiber and the production method thereof of binder fiber structure example such as supatex fabric or oakum, relate in more detail and can produce and in the lower temperature heat bonding and to have the heat bonding composite short fiber and the production method thereof of the fibre structure of good DIMENSIONAL STABILITY.
Background technology
So far, as polyester-based heat bonding composite short fiber, comprise polyalkylene terephthalates for example polyethylene terephthalate as core component and comprise isophthalic acid component, to stupid dioctyl phthalate component or the like as acid constituents and the amorphous polyester that does not have a crystalline melt point be widely used as the composite fibre of skin component, because its can be under 120 to 150 ℃ lower temperature bonding formation fibre structure, and do not need heat treatment at high temperature.
Yet although described polyester-based heat-bondable conjugated fiber can form described fibre structure at a lower temperature, the problem that exists is that the fibre structure that obtains has inadequate DIMENSIONAL STABILITY, therefore is out of shape in large quantities when using under hot environment.
The inventor tested at high temperature stretch processing and heat treatment to solve described problem and to improve the DIMENSIONAL STABILITY of heat-bondable fiber itself, but find the adhesion each other under of described fiber, make the spinning difficulty than the higher temperature of the glass transition point of amorphous polyester.
Therefore, in fact comprising amorphous polyester, especially glass transition point is that 50 to 100 ℃ amorphous polyester also is not suggested as heat bonding component and heat-bondable conjugated fiber with excellent size stability.
Summary of the invention
The purpose of this invention is to provide polyester-based heat bonding composite short fiber, it can provide the high-quality fibre structure, for example supatex fabric or oakum, it can carry out heat bonding at a lower temperature, and do not need at high temperature heat treatment, it has good DIMENSIONAL STABILITY and distortion hardly, even when under hot environment, using, and its production method is provided.
The inventor has been found that, for finishing above-mentioned purpose, using glass transition point to be that 50 to 100 ℃ amorphous polyester forms component and select the hot-stretch condition for described fiber as fiber as heat bonding component and polyalkylene terephthalates is effectively, thereby has finished the present invention.
Promptly, the polyester-based heat bonding composite short fiber of the present invention that can finish above-mentioned purpose is that to comprise glass transition point be 50 to 100 ℃ and the amorphous polyester that do not have a crystalline melt point and is not less than 220 ℃ polyalkylene terephthalates forms component as fiber heat bonding composite short fiber as heat bonding component and fusing point, it is characterized in that crispation number is 3 to 40/25mm, crimp percent be 3 to 40% and as the fibre web percentage reduction of area given a definition for not being higher than 20%.
＜fibre web percentage reduction of area 〉
Comprising 100% described heat bonding composite short fiber and area is A
0With basis weight be 30g/m
2The carded web supatex fabric, in maintaining 150 ℃ heated air drier, place after two minutes, measure the area A of described supatex fabric
1The fibre web percentage reduction of area is obtained by following formula.
Fibre web percentage reduction of area (%)=(A
0-A
1)/A
0* 100
In addition, another object of the present invention is the method for production polyester-based heat bonding composite short fiber, it is characterized in that: fusion and compound to extrude glass transition point be 50 to 100 ℃ and do not have the amorphous polyester of crystalline melt point and the polyalkylene terephthalates that fusing point is not less than 220 ℃, cooling and solidify the described compound fiber of extruding, not to be higher than 1, the speed of 500m/min is batched described fiber and is formed the composite fibre that do not stretch, on the described composite fibre that do not stretch, adhere to the polyether polyester block copolymer with the amount that is not less than 0.03 percetage by weight based on described fibre weight, at T
1To (T
2+ 30 ℃) under the temperature when cold 0.72 to 1.25 times draw ratio of maximal draw ratio described composite fibre and the described drawing of fiber that further curls of not stretching that stretch make that crispation number is that 3 to 40/25mm and crimp percent are 3 to 40%.At this, T
1Be the glass transition point of described amorphous polyester and the central higher temperature of glass transition point of described polyalkylene terephthalates, and T
2It is the glass transition point of described amorphous polyester.
Implement best mode of the present invention
It is that fusing point is not less than 220 ℃ polyalkylene terephthalates that the fiber of polyester-based heat bonding composite short fiber of the present invention forms component.When the fusing point that forms the polyester of component as described fiber is lower than 220 ℃, not only be difficult to stably produce described composite fibre, and when heat bonding is handled the stability decreases of described composite fibre.The preferred object lesson of polyalkylene terephthalates is polyethylene terephthalate and polybutylene terephthalate (PBT), with in the scope that does not undermine described feature, can comprise a spot of one or more copolymerization component and additives, for example delustering agent, colouring agent and lubricant.Especially, cheap and widely used polyethylene terephthalate is preferred.
On the other hand, be that glass transition point is 50 to 100 ℃ and does not have the polyester of crystalline melt point as the amorphous polyester of described heat bonding component.When the glass transition point of described polyester is lower than 50 ℃, described polyester is not preferred, because when fiber stretches by production method described below, be easy to adhere each other, and can not obtain having excellent size stability and percentage reduction of area is not higher than 20% composite fibre.When glass transition point surpassed 100 ℃, described polyester neither be preferred, because the heat bonding performance descends under 120 to 150 ℃ low temperature.
Described amorphous polyester comprises random or block copolymer, it comprises acid constituents for example terephthalic acid (TPA), M-phthalic acid, 2,6-naphthalenedicarboxylic acid, 5-sodiosulfoisophthalic acid, adipic acid, decanedioic acid, azelaic acid, dodecanedioic acid and 1,4-cyclohexane dicarboxylic acid, and glycol ethylene glycol, 1 for example, ammediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexylene glycol, diethylene glycol, 1,4-cyclohexanediol and 1,4 cyclohexane dimethanol.Especially, with regard to cost and operability, the amorphous copolyester that comprises terephthalic acid component, isophthalic acid component, ethylene glycol component and diethylene glycol component is preferred.
When the above-mentioned copolyesters that comprises terephthalic acid component, isophthalic acid component, ethylene glycol component and diethylene glycol component is used as the heat bonding component, must determine copolymerization ratio so that the glass transition point of described copolyesters is included within the above-mentioned scope.Yet terephthalic acid component: the molar ratio of isophthalic acid component compatibly is 50: 50 to 80: 20, and ethylene glycol component: the molar ratio of diethylene glycol component can be selected arbitrarily in the scope at 0: 100 to 100: 0.
When having the whole or a part of of described fiber surface (preferably to be not less than 40% in heat bonding ingredients constitute described in the polyester-based heat bonding composite short fiber of the present invention, especially be not less than 60% described fiber surface) time, described polyester-based heat bonding composite short fiber can any complex form production, and described form is selected from core-skin type, eccentric sheath core pattern, parallel type, fabric of island-in-sea type, splits fine type or the like.Especially, core-skin type, eccentric sheath core pattern and parallel type are preferred.
Secondly, it is necessary to 40% that the crispation number of polyester-based heat bonding composite short fiber of the present invention and crimp percent are respectively 3 to 40/25mm and 3.When described staple fibre had the crispation number that is lower than 3/25mm or is lower than 3% crimp percent, this fiber was not preferred, because the entanglement degree deficiency between the staple fibre undermines the carded web trafficability characteristic of staple fibre, so can not obtain the high-quality fibre structure.On the other hand, when described staple fibre had the crispation number that is higher than 40/25mm or is higher than 40% crimp percent, this fiber neither be preferred, because the entanglement degree between the staple fibre is too big, therefore carded staple can not obtain the high-quality fibre structure fully.Crispation number and crimp percent more preferably are respectively 5 to 30/25mm and 5 to 30%.Curling form comprises machine crimp and three-dimensional crimp, and can compatibly select and determine according to the use of described staple fibre or purpose.
Length and single fiber fiber number to described polyester-based heat bonding composite short fiber needn't limit especially, and can compatibly determine according to the use and the purpose of described staple fibre.
In heat bonding composite short fiber of the present invention, importantly be not higher than 20% as the fibre web percentage reduction of area of giving a definition.Thus, the form that described composite short fiber can 100% or to handle, to obtain even under hot environment, also to have the fibre structure of excellent size stability with the form of other fibre blend.When shrinkage factor surpasses 20%, the fibre structure that can not obtain in hot environment, having excellent size stability.Described fibre web percentage reduction of area is more preferably no higher than 10%.
＜fibre web percentage reduction of area 〉
Comprising 100% described heat bonding composite short fiber and area is A
0With basis weight be 30g/m
2The carded web supatex fabric, in maintaining 150 ℃ heated air drier, place after two minutes, measure the area A of described supatex fabric
1The fibre web percentage reduction of area is obtained by following formula.
Fibre web percentage reduction of area (%)=(A
0-A
1)/A
0* 100
Above-mentioned polyester-based heat bonding composite short fiber of the present invention can pass through for example following method production effectively.That is, above-mentioned amorphous polyester and polyalkylene terephthalates are preferably with core-skin type, eccentric sheath core pattern or parallel type form, by compound, fusion with extrude.Extrude fiber to be lower than 1, the speed of 500m/min is batched with the composite fibre that do not stretched.Then, to the additional polyether polyester block copolymer of the not stretching composite fibre that obtains, its amount based on the weight of described fiber for being not less than 0.03 percetage by weight, at T
1To (T
2+ 30 ℃) under the temperature when cold 0.72 to 1.25 times draw ratio of maximal draw ratio stretch, further being curled into crispation number then is that 3 to 40/25mm and crimp percent are 3 to 40% crimped fibre, be cut into the length that needs then, so can produce described polyester-based heat bonding composite short fiber.At this, T
1Be the glass transition point of described amorphous polyester and the central higher temperature of glass transition point of described polyalkylene terephthalates, and T
2It is the glass transition point of described amorphous polyester.
Coiling speed surpasses 1, and 500m/min is not preferred, is not higher than 20% because the fibre web percentage reduction of area can not be lowered to, even when the not stretching composite fibre that obtains stretches with above-mentioned condition.
In the aforementioned production method first adds the polyether polyester block copolymer on the surface of described composite fibre in the stage before the described composite fibre that do not stretch that batches that stretches.Therefore, even when the described composite fibre that do not stretch be not less than the glass transition point T of described amorphous polyester
2When stretching under the temperature of (that is, being equivalent to the softening point of described amorphous copolyester), when draft temperature is not higher than T
2In the time of+30 ℃, can obtain the fibre web percentage reduction of area and not be higher than 20% described polyester-based heat bonding composite short fiber, and can in drawing process, between fiber, not produce bonding.In addition, can obtain having the fibre structure of excellent mechanical property, a lot of because the hot adhesion performance of described composite fibre does not descend, even when described polyether polyester block copolymer is used to described composite fibre surface.
Prevent effect that bonds and the effect that keeps the hot adhesion performance, can not obtain simultaneously with following material: anion surfactant or its polyoxyalkylene adduct, cationic surfactant, non-ionic surface active agent, mineral oil or the like, it is often used as oiling agent and is used to produce staple fibre, or even polysiloxane group finishing agent.
The preferred polyether polyester block copolymer that uses particularly including to comprise molar ratio be 40: 60 to 100: 0 terephthalic acid component and isophthalic acid component and/or alkali metal sulfoisophthalic acid component as dicarboxylic acid component and ethylene glycol as diol component and with the number-average molecular weight of 20 to 95 percetages by weight be 600 to 10, the copolymer of 000 poly alkylene glycol copolymerization is from the stability of aqueous emulsion with prevent that drawing process the effect angle that produces bonding from seeing that described copolymer is particularly preferred.Acid constituents is adipic acid, decanedioic acid, azelaic acid, dodecanedioic acid or 1 for example, 4-cyclohexane dicarboxylic acid and/or diol component for example 1, ammediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexylene glycol, diethylene glycol, 1,4-cyclohexanediol or 1,4 cyclohexane dimethanol can be by combined polymerizations slightly.In addition, in order to regulate molecular weight, an end of described poly alkylene glycol can be with ehter bond for example monomethyl ether, monoethyl ether or a phenyl ether end-blocking.Described poly alkylene glycol comprises polyethylene glycol, PEP-101, polypropylene glycol and polytetramethylene glycol.Polyethylene glycol is particularly preferred.
The number-average molecular weight of described polyether polyester block copolymer prevents the effect that bonds preferably to provide preferably in 3,000 to 20,000 scopes.
The amount that adheres to the polyether polyester block copolymer of described not drawing of fiber must be not less than 0.03 percetage by weight based on described not drawing of fiber.The amount that is lower than 0.03 percetage by weight is not preferred, because can not obtain enough effects of boning of preventing in drawing process described below.On the other hand, even improve adhesion amount, the described effect that bonds that prevents also can reach the highest limit and no longer raising.Therefore, not being higher than 0.5 percetage by weight, the especially amount of 0.05 to 0.3 percetage by weight scope is fit to.
Be used for being not particularly limited, and described polyether polyester block copolymer can adhere to aqueous emulsion solution form by conventional known method arbitrarily in the described method that does not stretch composite fibre surface attachment polyether polyester block copolymer.In order to stablize described emulsion solution, not only can add emulsifying agent, and can add additive for example antistatic additive, lubricant, rust inhibitor, antifungal agent and anti-bacterial agent.
Secondly, second of aforementioned production method is draft temperature.Draft temperature must be set to and be not less than T
2The temperature of (glass transition point of described amorphous copolyester), the while need be set to draft temperature the temperature of the glass transition point that is not less than described polyalkylene terephthalates for the HEAT SETTING of the polyalkylene terephthalates of fiber formation component.Even above-mentioned polyether polyester block copolymer is attached to the surface of the described composite fibre that do not stretch in advance, when draft temperature is lower than one of the glass transition point of amorphous copolyester and polyalkylene terephthalates, can not obtain the purpose heat bonding composite short fiber with excellent in dimension stability of the present invention.In addition, it is also important that and described draft temperature can not be set to above T
2The high temperature of (glass transition point of described amorphous copolyester)+30 ℃.When draft temperature surpasses T
2In the time of+30 ℃, can not prevent the bonding of amorphous copolyester fully, and cause the generation of clinkering fibre bundle and in that crimper stability reduces to described fiber is additional when curling by utilizing pusher crimper.Therefore, draft temperature surpasses T
2+ 30 ℃ is not preferred.
When draft temperature was in above-mentioned scope, above-mentioned stretching can be once step stretching or multi-step tension, but necessity is that total drawing ratio is 0.72 to 1.25 times of cold stretch rate.When draw ratio was lower than 0.72 times of cold stretch rate, this draw ratio was not preferred, because the DIMENSIONAL STABILITY of the fibre structure of producing descends.When draw ratio during greater than 1.25 times of cold stretch rate, this draw ratio neither be preferred, because cause that the heat bonding performance reduces and tensile property reduces.The cold stretch rate of drawing of fiber is not according to following acquisition: relative humidity be in 65% the air under 25 ℃, the composite fibre that do not stretch that to collect in five minutes of the time of spinning just stretches under the condition that initial chuck length is 10cm with the speed of 5 cels, and the distance between the chuck length in the time of then initial chuck length and chuck can not being elongated is divided by initial chuck length (10cm).
In the present invention, for improving DIMENSIONAL STABILITY and prevent bonding effectively, above-mentioned stretching with 0.7 to 1.0 times draw ratio of the composite fibre cold stretch rate that do not stretch at T
1Temperature (higher temperature in the glass transition point of amorphous copolyester and the glass transition point of polyalkylene terephthalates) is to (T
1+ 10 ℃) under carry out, then with 1.03 to 1.25 draw ratio at (T
1+ 10 ℃) to [T
2(glass transition point of amorphous copolyester)+30 ℃] temperature under carry out.
In addition, using hot water is effective especially as the stretching heat medium.
Under the crimp percent condition of the crispation number that provides 3 to 40/25mm and 3 to 40%, described stretching composite fibre is curled, be cut into the length that needs then by the known conventional method.That is, when described curling form is the machine crimp form, for example use filling type crimper and filling pressure and temperature condition suitably to control.On the other hand, when described curling form is the three-dimensional crimp form, the composite construction and the cooling condition of the composite fibre in the time of can suitably selecting spinning.
The polyester-based heat bonding composite short fiber of the present invention that obtains has good DIMENSIONAL STABILITY, and is suitable for fibre structure for example supatex fabric or oakum.Described heat bonding composite short fiber can be used for for example supatex fabric of fibre structure individually, and perhaps described heat bonding composite short fiber can be used for for example supatex fabric of described fibre structure with other mixed with fibers then as main fiber.
Embodiment
Be described more specifically the present invention by the following examples.Wherein, the assessment item among the embodiment carries out in accordance with the following methods.
(a) glass transition point (Tg), fusing point (Tm)
The differential scanning calorimetry (DSC) DSC-7 type that utilizes Perkin-Elmer Inc. manufacturing is in 20 ℃/minute determination of heating rate glass transition point (Tg) and fusing point (Tm).
(b) inherent viscosity ([η]).
Inherent viscosity is measured under 35 ℃ of temperature in the solvent orthomonochlorphenol.
(c) crispation number, crimp percent
Measure crispation number and crimp percent by the method for describing among the JIS L 10157.12.
(d) fiber number
Measure fiber number by the description in the JIS L 10157.5.1A method.
(e) fibre length
Measure fibre length by the description in the JIS L 10157.4.1C method.
(f) rate that oils
Measure with 30 ℃ of methyl alcohol with 1: 20 bath raio with the 10 minutes weight from the residue of fiber extraction, the weight with mensuration obtains numerical value divided by the regulation fibre weight then.
(g) distortion of fibre web percentage reduction of area and fibre structure
Formation comprises 100% heat bonding composite short fiber, basis weight is 30g/m
2With area be A
0(25cm * 25cm=625cm
2) carded web, with the carded web that forms at air drier (hot air circulation freeze-day with constant temperature machine: 41-S4, Satake Kagaku Kikai KogyoKabushiki Kaisha makes) in maintain 150 ℃ two minutes, measure the area A of heat treated carded web
1, then with area A
1Be used for following formula.It is qualified that percentage reduction of area is not higher than 20% carded web.
Percentage reduction of area (%)=(625-A
1)/625 * 100
(h) bonding
When in described tensile fiber, produce bonding make production can not the time, perhaps adhere when bonding when in carded web, confirming to exist, it is defective that described fiber is determined, it is good that described in other cases fiber is determined.
[embodiment 1]
Inherent viscosity is 0.64, Tg is that 67 ℃ and Tm are that 256 ℃ polyethylene terephthalate is used as fiber and forms component.Be 60: 40 terephthalic acid component and isophthalic acid component and be the amorphous copolyester that 95: 5 ethylene glycol and diethylene glycol combined polymerization obtain from molar ratio as the molar ratio of diol component as acid constituents, its inherent viscosity be 0.56 and Tg be 64 ℃, be used as the heat bonding component.With the pellet vacuumize of described polymer, flow to core-skin type compounding flux spinning equipment, from having the spinning head melt spinning of 450 spinneret orifices, recombination rate comprises 50/50 volume ratio, spinning temperature is 290 ℃, extrudes quota and is 650g/min.With 30 ℃ of chilled air cools spinning fibres, it is bonding to carry out finishing agent, described finishing agent comprises the emulsion of polyether polyester block copolymer, this block copolymer is 80/20 terephthalic acid component and isophthalic acid component from the molar ratio as acid constituents, ethylene glycol and number-average molecular weight as diol component are 3,000 polyethylene glycol combined polymerization preparation, and have 10,000 mean molecule quantity, giving based on described fibre weight by oiling rolls is the pure adhesion amount of 0.1 percetage by weight, batch with the speed of 900m/min then, obtain not stretch core-sheath compound fibre.Maximal draw ratio (being called CDR hereinafter) is 4.5 during described not drawing of fiber cold.
The composite fibre boundling that will not stretch forms the tow of 110,000 dtexs (100,000 DENIER).Described tow at first stretches in 72 ℃ of hot water with 3.5 draw ratio (0.78 times CDR), and further (total drawing ratio is 4.0 with 1.15 draw ratio; 0.89 CDR doubly) in 80 ℃ of hot water, stretch, oil with the spinning oil that comprises the lauryl potassium phosphate, naturally be cooled to 35 ℃, curl with filling type crimper, be cut into the fibre length of 51mm then, acquisition single fiber fiber number 4.4 dtexs, crispation number are that 10/25mm and crimp percent are 15% heat bonding composite short fiber.
[embodiment 2 to 10, and the comparative example 1 to 6]
With with embodiment 1 in identical condition to prepare the single fiber fiber number be that 4.4 dtexs, fibre length are that 51mm, crispation number are that 10/25mm and crimp percent are 15% heat bonding composite short fiber, except heat bonding component, fiber form component, finishing agent, draw ratio and draft temperature and are changed.
Embodiment and comparative example's fibrous structure, finishing agent kind, spinning and stretching condition and estimation of fibres result are shown in table 1,2,3 and 4 respectively.
Table 1
| Compound type | F1 | F2 | F3 | F4 | F5 | F6 | ||
| # I | The acid composition | TA | 60 | 60 | 55 | 70 | 75 | 60 |
| IA | 40 | 40 | 40 | 30 | 25 | 40 | ||
| SA | - | - | 5 | - | - | - | ||
| Diol component | EG | 95 | 100 | 100 | 62 | 44 | 95 | |
| DEG | 5 | - | - | 8 | 6 | 5 | ||
| HMG | - | - | - | 30 | 50 | - | ||
| Tg ℃ | 64 | 69 | 59 | 55 | 40 | 64 | ||
| Tm ℃ | - | - | - | - | - | - | ||
| [η] | 0.56 | 0.57 | 0.55 | 0.56 | 0.56 | 0.56 | ||
| # II | Polymer | PET | PET | PET | PET | PET | PBT | |
| Tg ℃ | 67 | 67 | 67 | 67 | 67 | 25 | ||
| Tm ℃ | 256 | 256 | 256 | 256 | 256 | 228 | ||
| [η] | 0.64 | 0.64 | 0.64 | 0.64 | 0.64 | 0.87 | ||
#I: heat bonding component
#II: fiber forms component
TA: terephthalic acid (TPA)
IA: M-phthalic acid
SA: decanedioic acid
EG: ethylene glycol
DEG: diethylene glycol
HMG: hexylene glycol
PET: polyethylene terephthalate
PBT: polybutylene terephthalate (PBT)
Table 2
| Finishing agent | O1 | O2 | O3 | O4 | O5 | |
| The polyether polyester block copolymer component | - | - | ||||
| Acid constituents | TA | 80 | 90 | 72 | ||
| IA | 20 | 10 | 18 | |||
| SIA | - | - | 10 | |||
| Diol component | EG | 100 | 100 | 100 | ||
| Poly alkylene glycol | Type | PEG3000 | M-PEG3000 | PEG4000 | ||
| CD | 70 | 80 | 70 | |||
| Number-average molecular weight | 10000 | 9000 | 11000 | |||
| Other compositions | - | - | - | Phosphate 1 | Phosphate 2 | |
TA: terephthalic acid (TPA)
IA: M-phthalic acid
SIA:5-sodium sulfosalicylic phthalate
PEG 3000: the polyethylene glycol of mean molecule quantity 3000
PEG 4000: the polyethylene glycol of mean molecule quantity 4000
M-PEG 3000: polyethylene glycol one phenyl ether of mean molecule quantity 3000
CD: copolymerization degree %
Phosphate I: lauryl potassium phosphate
Phosphate 2: average oxirane adduct number is the part potassium lauryl phosphate of five mol.
Table 3
| Spinning | Stretch | |||||||
| #1 | Finishing agent | CDR | The first step | Second step | Total drawing ratio | |||
| #2 | Ratio/CDR | #2 | Ratio/CDR | Ratio (CDR) | ||||
| Embodiment 1 | F1 | 01 | 4.5 | 72 | 0.78 | 72 | 1.15 | 4.00(0.89) |
| The comparative example 1 | F1 | O1 | 4.5 | 65 | 0.78 | 60 | 1.15 | 4.00(0.89) |
| The comparative example 2 | F1 | O4 | 4.5 | 65 | 0.78 | 60 | 1.15 | 4.00(0.89) |
| The comparative example 3 | F1 | O4 | 4.5 | 72 | 0.78 | 72 | 1.15 | 4.00(0.89) |
| The comparative example 4 | F1 | O5 | 4.5 | 72 | 0.78 | 72 | 1.15 | 4.00(0.89) |
| Embodiment 2 | F1 | O1 | 4.5 | 72 | 0.78 | 80 | 1.15 | 4.00(0.89) |
| Embodiment 3 | F1 | O1 | 4.5 | 72 | 0.78 | 85 | 1.15 | 4.00(0.89) |
| Embodiment 4 | F1 | O1 | 4.5 | 72 | 0.96 | 80 | 1.05 | 4.54(1.01) |
| The comparative example 5 | F1 | O1 | 4.5 | 72 | 0.60 | 72 | 1.15 | 3.10(0.69) |
| Embodiment 5 | F1 | O2 | 4.5 | 72 | 0.78 | 72 | 1.15 | 4.00(0.89) |
| Embodiment 6 | F1 | O3 | 4.5 | 72 | 0.78 | 72 | 1.15 | 4.00(0.89) |
| Embodiment 7 | F2 | O1 | 4.5 | 72 | 0.78 | 72 | 1.15 | 4.00(0.89) |
| Embodiment 8 | F3 | O1 | 4.5 | 72 | 0.78 | 72 | 1.15 | 4.00(0.89) |
| Embodiment 9 | F4 | O1 | 4.5 | 72 | 0.78 | 72 | 1.15 | 4.00(0.89) |
| The comparative example 6 | F5 | O1 | 4.5 | 72 | 0.78 | 72 | 1.15 | 4.00(0.89) |
| Embodiment 10 | F6 | O1 | 3.8 | 72 | 0.78 | 72 | 1.15 | 3.38(0.89) |
#1: compound type
The #2 temperature
Table 4
| Fiber | |||
| Outward appearance does not bond | Fibre web percentage reduction of area (%) | Shrink back fibre web quality | |
| Embodiment 1 | Good | 18.5 | Good |
| The comparative example 1 | Good | 73.9 | Defectiveness |
| The comparative example 2 | Good | 55.3 | Defectiveness |
| The comparative example 3 | Defectiveness | Can not stretch | - |
| The comparative example 4 | Defectiveness | Can not stretch | - |
| Embodiment 2 | Good | 8.1 | Good |
| Embodiment 3 | Good | 5.1 | Good |
| Embodiment 4 | Good | 6.8 | Good |
| The comparative example 5 | Defectiveness | Can not stretch | - |
| Embodiment 5 | Good | 17.5 | Good |
| Embodiment 6 | Good | 18.1 | Good |
| Embodiment 7 | Good | 18.3 | Good |
| Embodiment 8 | Good | 16.3 | Good |
| Embodiment 9 | Good | 16.1 | Good |
| The comparative example 6 | Defectiveness | Can not stretch | - |
| Embodiment 10 | Good | 14.8 | Good |
Commercial Application
Polyester-based heat bonding composite short fiber of the present invention can provide senior fibre structure, and it has good dimensional stability and causes hardly distortion, even when using under hot environment, although described fibre structure can form in lower temperature. In addition, use production method of the present invention, can extremely stablize and easily produce above-mentioned heat bonding composite short fiber, and do not produce bonding.
Claims (7)
1. polyester-based heat bonding composite short fiber, its glass transition point that comprises as the heat bonding component is 50 to 100 ℃ and does not have the amorphous polyester of crystalline melt point and be not less than 220 ℃ polyalkylene terephthalates as the fusing point that fiber forms component, it is characterized in that crispation number be 3 to 40/25mm, crimp percent be 3 to 40% and as the fibre web percentage reduction of area given a definition be not higher than 20%
When the described heat bonding composite short fiber and the area that comprise 100% are A
0With basis weight be 30g/m
2The carded web supatex fabric, in maintaining 150 ℃ heated air drier, place after two minutes, measure the area A of described supatex fabric
1The time, the fibre web percentage reduction of area is obtained by following formula:
Fibre web percentage reduction of area (%)=(A
0-A
1)/A
0* 100.
2. the polyester-based heat bonding composite short fiber of claim 1, wherein said heat bonding component is to comprise isophthalic acid component, the amorphous copolyester of terephthalic acid component, ethylene glycol component and diethylene glycol component.
3. the polyester-based heat bonding composite short fiber of claim 1, it is polyethylene terephthalate that wherein said fiber forms component.
4. be used for the method for production polyester-based heat bonding composite short fiber, it is characterized in that; Fusion and compound to extrude glass transition point be 50 to 100 ℃ and do not have the amorphous polyester of crystalline melt point and the polyalkylene terephthalates that fusing point is not less than 220 ℃, cooling and solidify the described compound fiber of extruding, not to be higher than 1, the speed of 500m/min is batched described fiber and is formed the composite fibre that do not stretch, on the described composite fibre that do not stretch, adhere to the polyether polyester block copolymer with the amount that is not less than 0.03 percetage by weight based on described fibre weight, at T
1To (T
2+ 30 ℃) under the temperature when cold 0.72 to 1.25 times draw ratio of the maximal draw ratio described composite fibre that do not stretch that stretches, make that with the described drawing of fiber that further curls crispation number is that 3 to 40/25mm and crimp percent are 3 to 40%, and be cut into composite short fiber, wherein this composite short fiber has 20% or the fibre web percentage reduction of area of following following definitions, at this, T
1Be the glass transition point of described amorphous polyester and the central higher temperature of glass transition point of described polyalkylene terephthalates, and T
2Be the glass transition point of described amorphous polyester,
When the described heat bonding composite short fiber and the area that comprise 100% are A
0With basis weight be 30g/m
2The carded web supatex fabric, in maintaining 150 ℃ heated air drier, place after two minutes, measure the area A of described supatex fabric
1The time, the fibre web percentage reduction of area is obtained by following formula:
Fibre web percentage reduction of area (%)=(A
0-A
1)/A
0* 100.
5. the method that is used for production polyester-based heat bonding composite short fiber of claim 4, wherein said stretching is a two-step stretch, is included in T
1To (T
1+ 10 ℃) under the temperature when cold 0.70 to 1.00 times draw ratio of maximal draw ratio stretch and further at (T
1+ 10 ℃) to (T
1+ 30 ℃) draw ratio with 1.03 to 1.25 under the temperature stretches.
6. claim 4 or 5 the method that is used for production polyester-based heat bonding composite short fiber, the heat medium that wherein is used to stretch is a hot water.
7. claim 4 or 5 the method that is used for production polyester-based heat bonding composite short fiber, wherein said polyether polyester block copolymer be comprise molar ratio as acid constituents be 40: 60 to 100: 0 terephthalic acid component and isophthalic acid component and/or alkali metal salt sulfoisophthalic acid component and as the ethylene glycol of diol component and with the number-average molecular weight of 20 to 95 percetages by weight be the block copolymer of 600 to 10,000 poly alkylene glycol combined polymerization.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP105623/01 | 2001-04-04 | ||
| JP2001105623A JP3778808B2 (en) | 2001-04-04 | 2001-04-04 | Polyester-based heat-adhesive conjugate fiber and method for producing the same |
| JP105623/2001 | 2001-04-04 |
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| Publication Number | Publication Date |
|---|---|
| CN1460136A CN1460136A (en) | 2003-12-03 |
| CN1229530C true CN1229530C (en) | 2005-11-30 |
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|---|---|---|---|
| CNB028010647A Expired - Fee Related CN1229530C (en) | 2001-04-04 | 2002-03-20 | Polyester based thermally adhesive composite short fiber |
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|---|---|
| US (1) | US20030134115A1 (en) |
| EP (1) | EP1405937B1 (en) |
| JP (1) | JP3778808B2 (en) |
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| CN (1) | CN1229530C (en) |
| AT (1) | ATE334240T1 (en) |
| CA (1) | CA2421709C (en) |
| DE (1) | DE60213418T2 (en) |
| HK (1) | HK1058952A1 (en) |
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| KR20190136023A (en) * | 2017-04-27 | 2019-12-09 | 코베스트로 엘엘씨 | Structured Filament Used for 3D Printing |
| WO2020012843A1 (en) * | 2018-07-11 | 2020-01-16 | 株式会社カネカ | Polyester-based fiber and pile fabric cloth using same, and methods respectively for producing these products |
| CN113166381B (en) * | 2018-11-30 | 2023-05-02 | 汇维仕股份公司 | Polyester resin for adhesive with improved adhesive strength and polyester fiber using the same |
| JP7448194B2 (en) | 2020-03-23 | 2024-03-12 | 日本エステル株式会社 | Polyester core-sheath composite fiber |
| TWI803790B (en) * | 2020-11-24 | 2023-06-01 | 遠東新世紀股份有限公司 | Sheath-core type heat-bonding fiber and non-woven fabric |
| CN112760739B (en) * | 2020-12-31 | 2021-10-29 | 扬州富威尔复合材料有限公司 | Low-melting-point polyester fiber for automotive interior and preparation method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN168824B (en) * | 1986-10-21 | 1991-06-15 | Du Pont | |
| GB8806419D0 (en) * | 1988-03-18 | 1988-04-20 | Du Pont | Improvements relating to fibres |
| JPH073534A (en) * | 1993-06-11 | 1995-01-06 | Toyobo Co Ltd | Thermally bondable yarn having low shrinkage |
| JP3190485B2 (en) * | 1993-07-15 | 2001-07-23 | 帝人株式会社 | Binder fiber |
| JP3879289B2 (en) * | 1998-12-15 | 2007-02-07 | 東レ株式会社 | Method for producing polyester short fiber for cushion material and method for producing cushion material |
| JP4312867B2 (en) * | 1999-02-04 | 2009-08-12 | 日本エステル株式会社 | Thermal adhesive conjugate fiber, nonwoven fabric using the same, and method for producing the nonwoven fabric |
| JP2001003256A (en) * | 1999-06-22 | 2001-01-09 | Unitika Ltd | Filament non-woven fabric and its production |
| JP3856617B2 (en) * | 2000-04-04 | 2006-12-13 | 帝人ファイバー株式会社 | False twisting polyester fiber |
-
2001
- 2001-04-04 JP JP2001105623A patent/JP3778808B2/en not_active Expired - Fee Related
-
2002
- 2002-03-20 KR KR10-2002-7016303A patent/KR100510156B1/en not_active IP Right Cessation
- 2002-03-20 WO PCT/JP2002/002694 patent/WO2002081794A1/en active IP Right Grant
- 2002-03-20 EP EP02705398A patent/EP1405937B1/en not_active Expired - Lifetime
- 2002-03-20 US US10/312,260 patent/US20030134115A1/en not_active Abandoned
- 2002-03-20 DE DE60213418T patent/DE60213418T2/en not_active Expired - Lifetime
- 2002-03-20 AT AT02705398T patent/ATE334240T1/en not_active IP Right Cessation
- 2002-03-20 CA CA002421709A patent/CA2421709C/en not_active Expired - Fee Related
- 2002-03-20 CN CNB028010647A patent/CN1229530C/en not_active Expired - Fee Related
- 2002-04-03 TW TW091106723A patent/TW591140B/en not_active IP Right Cessation
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2004
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Also Published As
| Publication number | Publication date |
|---|---|
| EP1405937A1 (en) | 2004-04-07 |
| WO2002081794A1 (en) | 2002-10-17 |
| DE60213418D1 (en) | 2006-09-07 |
| KR100510156B1 (en) | 2005-08-25 |
| CA2421709A1 (en) | 2003-03-07 |
| HK1058952A1 (en) | 2004-06-11 |
| TW591140B (en) | 2004-06-11 |
| CA2421709C (en) | 2009-01-20 |
| KR20030005134A (en) | 2003-01-15 |
| ATE334240T1 (en) | 2006-08-15 |
| DE60213418T2 (en) | 2007-02-15 |
| EP1405937A4 (en) | 2005-11-09 |
| JP3778808B2 (en) | 2006-05-24 |
| EP1405937B1 (en) | 2006-07-26 |
| US20030134115A1 (en) | 2003-07-17 |
| CN1460136A (en) | 2003-12-03 |
| JP2002302833A (en) | 2002-10-18 |
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