CN1316119C - Producing process and correlative method for microfiber chamois non-woven cloth - Google Patents
Producing process and correlative method for microfiber chamois non-woven cloth Download PDFInfo
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- CN1316119C CN1316119C CNB03136053XA CN03136053A CN1316119C CN 1316119 C CN1316119 C CN 1316119C CN B03136053X A CNB03136053X A CN B03136053XA CN 03136053 A CN03136053 A CN 03136053A CN 1316119 C CN1316119 C CN 1316119C
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 229920001410 Microfiber Polymers 0.000 title claims description 23
- 239000003658 microfiber Substances 0.000 title claims description 23
- 239000004744 fabric Substances 0.000 title description 30
- 241001481789 Rupicapra Species 0.000 title description 10
- 239000004814 polyurethane Substances 0.000 claims abstract description 91
- 229920002635 polyurethane Polymers 0.000 claims abstract description 89
- 239000000839 emulsion Substances 0.000 claims abstract description 43
- 239000000835 fiber Substances 0.000 claims abstract description 30
- 239000003960 organic solvent Substances 0.000 claims abstract description 23
- 238000002360 preparation method Methods 0.000 claims abstract description 17
- 238000009987 spinning Methods 0.000 claims abstract description 10
- 230000006641 stabilisation Effects 0.000 claims abstract description 3
- 238000011105 stabilization Methods 0.000 claims abstract description 3
- 239000004745 nonwoven fabric Substances 0.000 claims abstract 21
- -1 polyethylene terephthalate Polymers 0.000 claims description 27
- 239000000243 solution Substances 0.000 claims description 26
- 239000002585 base Substances 0.000 claims description 23
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 23
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 239000007864 aqueous solution Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 229920000642 polymer Polymers 0.000 claims description 17
- 239000002904 solvent Substances 0.000 claims description 16
- 229920000728 polyester Polymers 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 229920002215 polytrimethylene terephthalate Polymers 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 6
- 238000005470 impregnation Methods 0.000 claims description 6
- 239000012948 isocyanate Substances 0.000 claims description 6
- 239000011260 aqueous acid Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 4
- 150000002513 isocyanates Chemical class 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 229920000515 polycarbonate Polymers 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 125000005442 diisocyanate group Chemical group 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 2
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical class C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 claims description 2
- 229920000877 Melamine resin Polymers 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 150000001718 carbodiimides Chemical class 0.000 claims description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical class NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000002562 thickening agent Substances 0.000 claims description 2
- 150000003755 zirconium compounds Chemical class 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 claims 3
- 239000004593 Epoxy Chemical class 0.000 claims 1
- 230000001112 coagulating effect Effects 0.000 claims 1
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims 1
- 239000005014 poly(hydroxyalkanoate) Substances 0.000 claims 1
- 229920000903 polyhydroxyalkanoate Polymers 0.000 claims 1
- 229920005862 polyol Polymers 0.000 claims 1
- 150000003077 polyols Chemical class 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 239000012266 salt solution Substances 0.000 claims 1
- 239000011877 solvent mixture Substances 0.000 claims 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims 1
- 239000010985 leather Substances 0.000 abstract description 11
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 30
- 238000009941 weaving Methods 0.000 description 29
- 239000000047 product Substances 0.000 description 27
- 238000005516 engineering process Methods 0.000 description 26
- 238000007598 dipping method Methods 0.000 description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 20
- 238000005299 abrasion Methods 0.000 description 14
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 125000001931 aliphatic group Chemical group 0.000 description 9
- 150000001450 anions Chemical class 0.000 description 8
- 239000004721 Polyphenylene oxide Substances 0.000 description 7
- 239000004372 Polyvinyl alcohol Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 229920000570 polyether Polymers 0.000 description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 description 7
- 235000011121 sodium hydroxide Nutrition 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000004900 laundering Methods 0.000 description 6
- 229920000747 poly(lactic acid) Polymers 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 150000005846 sugar alcohols Polymers 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- RASZIXQTZOARSV-BDPUVYQTSA-N astacin Chemical compound CC=1C(=O)C(=O)CC(C)(C)C=1/C=C/C(/C)=C/C=C/C(/C)=C/C=C/C=C(C)C=CC=C(C)C=CC1=C(C)C(=O)C(=O)CC1(C)C RASZIXQTZOARSV-BDPUVYQTSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 238000001467 acupuncture Methods 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- FJQXCDYVZAHXNS-UHFFFAOYSA-N methadone hydrochloride Chemical compound Cl.C=1C=CC=CC=1C(CC(C)N(C)C)(C(=O)CC)C1=CC=CC=C1 FJQXCDYVZAHXNS-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 102000034498 Astacin Human genes 0.000 description 2
- 108090000658 Astacin Proteins 0.000 description 2
- FMKGDHLSXFDSOU-BDPUVYQTSA-N Dienon-Astacin Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1=C(C)C(=O)C(=CC1(C)C)O)C=CC=C(/C)C=CC2=C(C)C(=O)C(=CC2(C)C)O FMKGDHLSXFDSOU-BDPUVYQTSA-N 0.000 description 2
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 229920002396 Polyurea Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 235000003676 astacin Nutrition 0.000 description 2
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 230000004087 circulation Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000007380 fibre production Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007964 self emulsifier Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229960002415 trichloroethylene Drugs 0.000 description 2
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical group N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 238000006424 Flood reaction Methods 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical class CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000012296 anti-solvent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- WFKAJVHLWXSISD-UHFFFAOYSA-N isobutyramide Chemical compound CC(C)C(N)=O WFKAJVHLWXSISD-UHFFFAOYSA-N 0.000 description 1
- 125000002462 isocyano group Chemical group *[N+]#[C-] 0.000 description 1
- 238000009981 jet dyeing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229920001610 polycaprolactone Polymers 0.000 description 1
- 239000004632 polycaprolactone Substances 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000009938 salting Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000012485 toluene extract Substances 0.000 description 1
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
A process for the preparation of a micro-fibrous non-woven fabric of the suede leather type includes spinning a two-component fiber of the ''islands in the sea'' type having an island component and a sea component and then preparing a felt from the two-component fiber. The felt is treated with thermal stabilization and impregnated with polyurethane from an aqueous polyurethane emulsion. The polyurethane is fixed to the felt and the sea component is removed. The felt is then impregnated with polyurethane for a second time with an aqueous emulsion or a high durability solution in organic solvent. The polyurethane is then fixed to the felt for a second time to obtain a non-woven fabric and a finishing treatment is applied to the non-woven fabric.
Description
Technical field
The present invention relates to the production technology of the synthetic fento non-weaving cloth of " chamois leather (suede) " type, it need not with an organic solvent, perhaps it significantly reduces the use of these solvents, uses this technology, might obtain to have the product of optimum physical mechanical performance and " feel " characteristic; The invention further relates to some processing methods of the product that produces in this technical process and/or use.
Background technology
Known and existing market is being sold a kind of fento chamois leather nonwoven manufacturing technique, based on the description in italian patent 823055,839921,858373,873699,905222,921871 and the United States Patent (USP) 3531368.
According to these patents, by two kinds of polymer feed being arrived the bicomponent fiber of spinnerets preparation " island " type, its mode is that " sea " component makes their form a plurality of " islands " fully around another component that constitutes several long filaments.In the middle of this bicomponent fiber, " sea " component generally is made of polystyrene (PST) or another kind of polymer with following spinning characteristic, i.e. the microfiber of encirclement " island " component and and then easily molten in the standard organic solvent.Should " island " component preferably constitute by polyethylene terephthalate (PET) or nylon.Obtain the felt of fiber production thus with needle point method, with polyvinyl alcohol (PVA) aqueous solution, " sea " component is dissolved in the trichloro-ethylene (" trielene ") with its dipping, and this felt is flooded with dimethyl formamide (DMF) solution at polyurethane (PU), at last, remove PVA.
The product that so obtains is cut into two along the cross section, polishes, in suitable jet dyeing machine, dye, and arrangement.
Obviously, this technological requirement is used two kinds of organic solvents (trichloro-ethylene and dimethyl formamide), in process of production, must to reclaim and/or handle it in order to utilize again, this needs sizable amount of labour, and has increased industrial cost, comprises the cost of environmental practice.
In order to eliminate or to reduce dependence to aforementioned solvents, propose other and produced the method for fento chamois leather non-weaving cloth, wherein " sea " component is made of other polymer, for example polyethylene (available toluene extracts), nylon 6 (dissolving in formic acid or sulfuric acid) or some modified poly ester (alkaline soluble or acid solution in) etc.
Can replace in the dimethyl formamide solution or the polyurethane that disperses in aqueous emulsion of the polyurethane in other organic solvent has also had description (for example, european patent application the 1041191st).Although yet in description as if these methods solved problem with an organic solvent because the chemistry and the physical mechanical characteristic of this product, these methods still have problems.
The technology of felt direct impregnation aqueous emulsion of polyurethane is provided, this felt is by the bicomponent fiber manufacturing, and use subsequently " removing " dissolution with solvents should " sea " component (this will eliminate dimethyl formamide---dissolve the use of the organic solvent of " sea " component, dipping and each removal mutually of PVA), this technology causes final products not reach best " feel " and physics-mechanical property, especially ABRASION RESISTANCE, reason is that the bounding point of polyurethane/fento weakens because of the extraction of " sea " component.This technology is called " dissolving of sea, back " technology in the document.
At first flood PVA solution, use organic solvent dissolution " sea " component and then flood polyurethane organic solvent (normally DMF or dimethylacetylamide subsequently at felt, DMAc) in the various technologies of solution, between polyurethane and the fento bonding better, and thus, especially ABRASION RESISTANCE can be better for every physical mechanical characteristic.
The objective of the invention is to overcome all above-mentioned defectives.More specifically, the present invention relates to the production technology of imitative chamois leather type fento non-weaving cloth, this technology reduces to minimum with the use of organic solvent, perhaps get rid of the use of organic solvent fully, it does not bring handle and reclaim expensive, it can produce the product that chemistry and physical mechanical characteristic equate with prior art products, if the words that do not substantially exceed.
In the disclosures in Italian patent application MI2001A000516 that submits to same applicant's name, in the technology that does not need organic solvent, by using felt and flooding it with high saponification value polyvinyl alcohol (H.S.PVA), suitably mix and heat setting with netted formation agent, dissolving " sea " component is also immediately with the polyaminoester emulsion dipping of aqueous dispersion in sodium hydrate aqueous solution then, and the production of imitative chamois leather type non-weaving cloth obtains optimization.Overcome the problem of bonding deficiency between the fento that occurs in " dissolving of sea, back " type technology and the polyurethane according to the method for this patent application of this application people, obtained physical mechanical characteristic and " feel ", and the product of ABRASION RESISTANCE the best.
The application's invention allows to produce the imitative chamois leather type fento non-weaving cloth with optimum physical mechanical performance, ABRASION RESISTANCE and outward appearance, and make production technology obtain sizable simplification, and in order to realize goal of the invention, obtain to simplify the obvious advantage of process aspect, especially reduced raw materials used value volume and range of product.
Summary of the invention
Therefore, the objective of the invention is, a kind of preparation technology of imitative chamois leather type fento non-weaving cloth, it comprised with the next stage:
A) spinning " island " type bicomponent fiber;
B) prepare felt by this bicomponent fiber;
C) thermostabilization of this felt is handled;
D) dipping aqueous emulsion of polyurethane;
E) polyurethane is fixed on this felt;
F) remove " sea " component;
G) flood polyurethane once more, this polyurethane is aqueous emulsion or highly durable organic solvent solution;
H) fix this polyurethane;
I) non-weaving cloth that obtains is handled in arrangement;
According to the present invention, " island " component is selected from polymer conventional in the textile applications; Preferably it can be made of polyethylene terephthalate or modified poly ester (for example, polytrimethylene-terephthalate etc.), be selected from the polyamide of cationic polyester, nylon or other type, is selected from the polyolefin of polyethylene, polypropylene or other type.
This " sea " component is selected from must be by these processing means dissolvings of water, alkali or aqueous acid and the polymer of removing.Preferred they by nylon or other polyamide, modified poly ester and more generally, but other spinning polymer with water soluble or fundamental characteristics such as aqueous acid or aqueous alkali constitute, this polymer for example is a polyhydroxyalkanoatefrom class (PHA).
The ratio that is used for " island " component of this bicomponent fiber spinning and " sea " component must be between 20/80 and 80/20.
Can finish the thermostabilization processing of stage c) with warm water or warm air.
Step d) and g)-the steep water based polyurethane is performed such: the step d) aqueous emulsion of polyurethane, step g) is with the high-durability organic solvent solution dipping of aqueous emulsion of polyurethane or polyurethane.These polyurethane impregnated can be different with regard to the amount of polymers in first and second dippings.The emulsion of using amount of polymers difference or polymer property to change is finished the dipping aqueous emulsion of polyurethane, and perhaps it is finished with the identical polyaminoester emulsion that obtains the advantage on the important program of another kind.
Can carry out twice fixing operation successively according to the phase region method for distinguishing.Under the situation of aqueous emulsion, handle or solidify with saturated vapor and finish this curing with microwave/radio-frequency seasoning or with the aqueous solution of acid or salt.Polyurethane is dissolved under the situation of organic solvent, and this is fixed by using non-solvent (being generally water) to finish dealing with.In any case all fixing means do not rely on types of polyurethane ground and finish according to the technology of knowing, those skilled in the art of the present technique are required to select most probable technology.
Finish " sea " component of stage f) with the solvent mode and remove, this solvent is selected from aforementioned those solvents that same composition adopts that are used to dissolve.For example, may use NaOH (sodium idroxide) aqueous solution or aqueous alkali or aqueous acid or hot water.
According to method of the present invention, combining between felt and the aqueous emulsion of polyurethane that at first applies must be able to tolerate the processing of " sea " component in the extraction bicomponent fiber.For this reason, must fix this polyurethane, so that it can tolerate such processing.The mode of energy usefulness interpolation netted formation agent known in this field is polyurethane fixedly, and this forms agent and activates in room temperature or at higher temperature (110 ℃, 200 ℃) according to its type.
Below more detailed description is finished the required operations of the inventive method, simultaneously the embodiment of embodiment makes the advantage of same technology obtain understanding and estimating, but they do not produce improperly scope of the present invention and limit.
The spinnerets spinning bicomponent fiber of knowing through brainstrust, and this spinnerets makes a kind of polymer in the obtainable composite fibre of institute center on the primitive fibre placement of another polymer.So the fiber that obtains is handled according to known method for sorting in the spining technology; Particularly, bicomponent fiber before drafted, must have the weight between the 5-15 DENIER, more preferably the 8-14 DENIER.
At 2-8, preferably the draw ratio that changes in 3-5 times of scope is carried out drawing-off according to generally, makes final bicomponent fiber between the 2-8 DENIER, and the DENIER of " island " component is between the 0.001-0.5 DENIER.In case drafted mistake then cuts into it long, more preferably long staple fibre of 45-55mm of 40-60mm with this bicomponent fiber " curlingization " in suitable equipment subsequently till every centimetre crispation number is 4-15.
Preferred polyethylene terephthalate (PET) or polytrimethylene-terephthalate (PTT) or polybutylene terephthalate (PBT) or cationic polyester conduct " island " bicomponent fiber that component constituted of using among the present invention.Available modified poly ester is as " sea " component, and this modified poly ester for example is PET-5-sodium sulfo group-ethylene isophthalate (hereinafter representing with TLAS), the alkaline soluble aqueous solution.Yet the present invention does not get rid of other modified poly ester that is extracted into easily in neutrality, acid or the aqueous alkali.In addition, available polyhydroxyalkanoatefrom (PHA) base polymer is as " sea " component.The polymeric material that another kind can easily be used as " sea " component is PLA (lactil acid) (hereinafter representing with PLA): this polymer derives from natural plant, and hydrolysis easily under the temperate condition of alkaline solution.
This bicomponent fiber is made felt through acupuncture; Apparent density, in case by heat treatment (warm water or warm air) " size stabilization ", preferably must be between 0.1-0.5g/cm
3, more preferably between 0.15-0.4g/cm
3, thickness is between 1.5-4mm simultaneously, and its target is to obtain the good final non-weaving cloth of pliability.
So the felt that obtains at first experiences the dipping of aqueous emulsion of polyurethane (PUD), and concentration is 1-30 weight %, and room temperature obtains the PUD concentration in the 5-30% scope.According to a kind of embodiment, the felt that needs twice polyurethane impregnated of experience is once before dissolving " sea " component, once after dissolving " sea " component, during the PUD of amount is placed in and floods for the first time between the required polyurethane total amount 1/8 and 7/8, and remainder is placed in the dipping second time.
For the first time not adding 8/8 polyurethane in the dipping, promptly before dissolving " sea " component, all add, otherwise, can return to " dissolving of sea, back " type technology, and reappear all problems due to the bonding deficiency of polyurethane/fento that it causes.
Yet, in flooding first, can not add and be less than 1/8 PUD, otherwise the consolidation of the intermediate products of generation can not reach the degree of the mechanical stress when resisting the processing of " sea " components dissolved.
Be applied to PUD on the felt in this stage and must tolerate all other production stages (high temperature acidproof processing and alkaline-resisting processing down in the terms and conditions of dissolving " sea " component, the tolerance in second impregnation stage, the dyeing processing) till obtaining the dyeing product of finishing, it needs process " fixing " so that make it realize these targets for this reason.In case be fixed, this PUD must further have the good durability of hydrolysis condition and ultraviolet degradation aspect.
In order to extract " sea " component in the bicomponent fiber, the available hydrogen aqueous solution of sodium oxide is handled, the Temperature Treatment of its concentration between 1-15 weight % and between 40-90 ℃; According to condition, the time of dissolving " sea " component changed between 4-40 minute.Usually, can be according to sea component that is adopted and dissolubility thereof, in, finish the dissolving of sea component in acid or the alkaline aqueous solution.
Put it briefly, dissolution conditions should be optimized, so as in the shortest as far as possible time dissolving " sea " component optionally, but and in such time the PUD that is applied and " island " component of dissolving minimum energy, to reduce this sheet material deterioration.Subsequently, under the aqueous solution situation of using caustic acid or alkali, at room temperature wash this base sheet, be partly dissolved to avoid " island " component with massive laundering.
Flood the non-weaving cloth that extracted " sea " component for the second time with aqueous emulsion of polyurethane (needn't flood employed identical) with the first time, condition is: at room temperature, with suitable nip rolls selected concentration between metering on this base sheet material applies 2% and 20%, up to reaching required PUD total concentration, this concentration is represented with the ratio between the PUD/ microfiber must be between 25%-70%, more preferably between 40-60%.
Replaceability ground, flood the non-weaving cloth that extracted " sea " component for the second time with the high-durability polyurethane (PU) in the organic solvent, condition is: at room temperature, with suitable nip rolls selected concentration between metering on this base sheet material applies 2% and 20%, up to reaching required total polyurethane concentration, this concentration represents with PUD/ microfiber ratio, must be between 25%-70%, more preferably between 40-60%.
Because target is the final products flexibility that obtains and with an organic solvent the technology products obtained therefrom is similar with tradition in appearance, so the final polyurethane in the non-weaving cloth cross section must mainly be present in the central area, rather than arrives the neighboring.Only use the two dippings of polyurethane (dissolving " sea " component is before with afterwards) just can reach this purpose of the present invention of best distribution of this polyurethane; On the other hand, adopt simple " dissolving of sea, back " technology, then the distribution of polyurethane on whole cross section is quite even, and concentration is high slightly on the edge of this base sheet.
The polyalcohol that constitutes polyurethane (PUD) in the aqueous emulsion can be polyether-type, polyester-type, polycarbonate type polymer, and polyester-polycarbonate type, polyester-polyether-type and Merlon-polyether-type copolymer; Can use one or more types in these polyalcohols to prepare this polyurethane, these polyalcohols must have the number-average molecular weight between 500 and 5000, more preferably between 600 and 2000.
Employed vulcabond can be a kind of in aliphatic series or the aromatics during PUD was synthetic; On the other hand, the normally low-molecular-weight molecule of used cahin extension agent, it has two or more reactive hydrogens with isocyano group (isocyane) reaction.
Synthetic following the carrying out usually of PUD, at first the prepolymer of isocyanide end group is with in preparation, by high degree of agitation it is merged in this aqueous emulsion also to make it increase chain with suitable cahin extension agent, until reaching required molecular weight.
For prepolymer is made emulsion, can adopt the external emulsification agent, perhaps making has the prepolymer that contains hydrophilic radical and/or charged groups part in the molecule, for example give polyurethane prepolymer with self-emulsifier.Preferably become the self-emulsifier of the electronegative PUD of acquisition by group, for example the sulfonic acid of dihydromethyl propionic acid (DMPA) or functionalization has formed electronegative polyaminoester emulsion like this in the aqueous solution; The interpolation concentration of this class group polyalcohol concentration relatively changes between 0.5-10%, and, in case it is synthetic to finish this prepolymer, generally before being about to form aqueous dispersions, neutralize with triethylamine.
Under emulational leather and synthetic chamois leather situation, be used for measuring following the carrying out of degradation of " durability ":
1. aging (being called short-term xenotest 1200) under the ultraviolet ray,, Xenotest1200CPS finishes under the following conditions with equipment: relative humidity 20 ± 10%, blackboard temperature are 100 ± 3 ℃, and radiant power is 60W/m
2, open-assembly time is 138 hours.
2. finish hydrolytic resistance test (being called for short " Jungle Test ") in climatic chamber, condition is as follows: 75 ± 1 ℃ of temperature, and relative humidity 90 ± 3%, open-assembly time is 5-7-10 week.
After the degradation, represent durability with the following methods:
Outward appearance and weightless mensuration, experienced the wear test of Martindale friabilator 12Kpa pressure at material after, the former with the naked eye compares with 5 standard samples.
The variation of physical mechanical characteristic, and the especially variation of breaking strain.
When the polyurethane in the solvent of dipping employing for the second time, this polyurethane characteristic is the polyurethane of high-durability, this characteristic makes it can effectively tolerate all degradations, and when adopting, can also under the temperature that patient temperature is higher than usual solvents polyurethane, process for similar purpose.
During flood the second time of the present invention, this solvent polyurethane that is applied on this base sheet is characterised in that, it has " firmly " segment that is made of urethano (urethanic group) (reaction between vulcabond and the polyalcohol) and urea groups (ureic group) (reaction of free diisocyanate based and water), and having " soft " segment that constitutes by polyalcohol-Merlon/polyalcohol-polyester mixture, ratio is 80/20-20/80.
Particularly, polyurethane " soft " segment is made of the mixture of polyalcohol/polycarbonate/polyester, derive by aromatic diisocyanate and be somebody's turn to do " firmly " segment, and preferably by 4, the urea groups that 4 '-diphenyl-methane-vulcabond and water reaction are derived constitutes, so, in reactor, directly generate cahin extension agent.
Finish the present invention for actual, can from polyhexamethylene carbonate diol ester (preferably), poly-5-methylene carbonate diol ester and poly-heptamethylene carbonate diol ester, select PCDL, and the optional autohemagglutination neopentyl of polyester polyol adipate diol ester (preferably), polyhexamethylene adipate diol ester, or the polycaprolactone of glycol.
The organic diisocyanate that is adopted is aromatic, for example the 2-4/2-6 toluene di-isocyanate(TDI), be independent of the 2-4/2-6 isomer ratio separately and (more excellently be, 80/20 ratio), perhaps 4,4 '-diphenyl-methane-vulcabond itself, perhaps mix with 2-4 isomers, weight ratio is 2-4 ' isomers of 0.01-50%, perhaps for example between toluene di-isocyanate(TDI) and the '-diphenylmethane diisocyanate they self and between their isomers with the mixture of arbitrary proportion.
Adoptable solvent is N, dinethylformamide, N,N-dimethylacetamide, dimethyl sulfoxide (DMSO), acetone, methulketon, oxolane, N-methyl-pyrrolidones.
The preparation method of these polyurethane well known to a person skilled in the art, finishes these methods and will preferably use those raw materials of determining according to the object of the invention.
The PUD aqueous emulsion of using one of following technology to use in the dipping first time is fixed on the felt, the PUD emulsion selection that this technology Ying You expert uses according to preparation:
1. in acid solution or salting liquid (for example aqueous solution of calcium nitrate or calcium chloride), solidify PUD.Although can use acid arbitrarily,, generally use acetic acid or phosphoric acid for practicable reason.
2. directly carry out drying with microwave or radio frequency, its power is between 5-20KW.
3. handle with the saturated vapor of a certain temperature between 100 and 110 ℃, by adding the PUD aqueous solution, a kind of thickener of concentration 0.5-10%w/w.
These technology make final products PUD distribution on the cross section, porosity, resistance and final physical mechanical properties obtain optimization.Yet, can not use typical hot-air convection drying, because this can cause PUD to base sheet neighboring migration, and on the PUD that has fixed, can not obtain any porosity, make this processing very slow, thereby damaged the performance of final products.
The netted formation agent that can add 0.5-10 weight % to the aqueous emulsion of polyurethane that is used for this dipping is so that physical mechanical, anti-solvent and endurance quality that acquisition needs; Bases or blocked isocyanate that these netted formation agent can be melamine, aziridine, carbodiimides, epoxide, zirconium compounds or isocyanates.
The high-durability polyurethane organic solvent solution that in flooding for the second time, applies, its curing is by finishing in the solution that the base sheet is immersed in solvent/non-solvent, the ratio of solvent/non-solvent is 0/100-40/60, and temperature is a certain temperature between 20-50 ℃.
Under these curing conditions, can obtain best polyurethane porosity and best final products feel.
Carrying out concentration subsequently is the siloxanes aqueous solution dipping of 0.1-1.1 weight %; This siloxanes purpose is for the ease of playing " suede " and therefore improve final appearance characteristics in the polishing stage.
Dry final base sheet in air oven then, and make this base sheet experience each production phase subsequently, these stages be respectively cuts open into it along the cross section two, polishing, dyeing and arrangement.Used those conditions during the operating condition reflection non-weaving cloth with an organic solvent of these production phases is produced.
Embodiment
Embodiment 1(non-weaving cloth is prepared into the dipping first time with the PUD aqueous emulsion)
Staple fibre is made in shaping by PET (polyethylene terephthalate) microfiber (0.13 and 0.15 DENIER) in the modified poly ester matrix (TLAS), and it has following characteristic:
1-DENIER 3.9
2-length 51mm
3-about 4/cm that curls
4-draw ratio 3.5/1
Particularly, form this fiber by 57 weight portion PET and 43 weight portion TLAS.Observation to the fiber section shows have 16 PET fentos to be enclosed in the TLAS matrix.By the undressed felt of this fiber production of short fiber form, its experience acupuncture is so that form the needled mat of density 0.217g/cc.Felt make this acupuncture in the warm water of 95 ℃ of temperature after is retracted to density 0.331g/cc.Such felt is called F1.
Embodiment 2(preparation of non-weaving cloth is by the end of the dipping first time with the PUD aqueous emulsion)
This embodiment repeats embodiment 1, and difference is to use polytrimethylene-terephthalate (PTT) rather than polyethylene terephthalate (PET) as " island " component, and the non-weaving cloth felt is called F2 in the middle of obtaining.
Comparative Examples 3,4(preparation of non-weaving cloth is by the end of the dipping first time with the PUD aqueous emulsion)
This embodiment repeats embodiment 1,2, and difference is, when " island " component is PET or PTT, uses poly-(lactic acid) (PLA) to replace TLAS as " sea (island) " component, obtains to be called the middle non-weaving cloth felt of F3, F4.
Embodiment 5(non-weaving cloth preparation one)
Sample with 4.0%Witcobond279-34 aqueous emulsion of polyurethane (anion PUD is produced by Baxenden Chemicals for polyether-based, aliphatic) dipping felt F1; This PUD is applied on this base sheet by suitable mangle roller metering, and the PUD/PET ratio of acquisition is 16%.
CH 35%
3Solidify this PUD in the COOH solution, PUD is fixed on this base sheet.Then,, dissolve this TLAS " sea " component, wash this intermediate blank sheet with massive laundering subsequently by in 6% NaOH, carrying out handling in 30 minutes in 60 ℃.The intermediate blank sheet that so the obtains 10%DMF solution with high durable polyurethane is flooded once more, and water at room temperature solidifies up to the final PUD/PET ratio always that obtains 50%.
The DMF solution for preparing the durable polyurethane of this height separately.In first step (prepolymerization), all have the PHC of 2000 molecular weight and PNA and MDI 65 ℃ of reactions under stirring, wherein the mol ratio of vulcabond/glycol is 2.9/1.After reaction beginning 3 hours, the prepolymer that is obtained is cooled to 45 ℃, and with the DMF dilution, making moisture is 0.03% up to obtaining 25% the pre-polymer solution that free NCO content equals 1.46%.
Then, in 5 minutes time, keeping temperature is under 45 ℃ the situation, slowly to add DBA and the water that is dissolved among the DMF, like this so that make polyurethane-polyurea obtain 43000 calculating molecular weight.When temperature reaches 65 ℃, reactor was kept stirring 8 hours again, so that finally obtain polyurethane-polyurea solution, it keeps stable, viscosity is 24000mPa in the time of 20 ℃
*Sec.
The 0.2% siloxanes aqueous solution is applied on this product, then it is cutd open into two equal parts along the cross section, and each part is carried out surface finish.Final non-weaving cloth is called P1.
Embodiment 6(preparation of non-weaving cloth)
Sample with 2.9%Witcobond279-34 aqueous emulsion of polyurethane (anion PUD is produced by Baxenden Chemicals for polyether-based, aliphatic) dipping felt F1; This PUD is applied on this base sheet by suitable mangle roller metering, and the PUD/PET ratio of acquisition is 10%.
CH 35%
3Solidify this PUD in the COOH solution, PUD is fixed on this base sheet.Then,, dissolve this TLAS " sea " component, wash this intermediate blank sheet with massive laundering subsequently by in 6% NaOH, carrying out handling in 30 minutes in 60 ℃.The intermediate blank sheet that so the obtains 12%DMF solution (synthetic according to last embodiment) with high durable polyurethane is flooded once more, and water at room temperature solidifies up to the final Putotal/PET ratio always that obtains 50%.The 0.2% siloxanes aqueous solution is applied on this product, then it is cutd open into two equal parts along the cross section, and each part is carried out surface finish.Final non-weaving cloth is called P2.
Use PLA also to obtain similar result as " sea " component or use PTT as " island " component, the product of putting in order has surface of good outward appearance, " feel " and physical and mechanical properties.
Chemistry-physical characteristic and ABRASION RESISTANCE are listed in table 1.
Table 1
| Product | Intensity L (Kg/cm) | Intensity T (Kg/cm) | Percentage elongation L (%) | Percentage elongation T (%) | Outward appearance after the abrasion * | Abrasion weightless (%) * |
| P1 | 9.3 | 6.5 | 65 | 115 | 4/5 | 3％ |
| P2 | 9.9 | 7.0 | 69 | 108 | 4/5 | 2.5％ |
*On the Martindale instrument, carry out the abrasion of 20000 circulations with the pressure of 12Kpa.
After material experiences this abrasion test, compare 5 standard samples with ocular estimate, estimate outward appearance.
Embodiment 7(preparation non-weaving cloth)
Sample with 7.5%Witcobond279-34 aqueous emulsion of polyurethane (anion PUD is produced by Baxenden Chemicals for polyether-based, aliphatic) dipping felt F1; This PUD is applied on this base sheet by the metering of suitable dampener, and the PUD/PET ratio of acquisition is 30% (total PUD requirement 1/2).CH 10%
3Solidify this PUD in the COOH solution, PUD is fixed on this base sheet.Then,, dissolve this TLAS " sea " component, wash this intermediate blank sheet with massive laundering subsequently by in 10% NaOH, carrying out handling in 20 minutes in 60 ℃.The intermediate blank sheet that so obtains is flooded once more with the PUD that uses in flooding for the first time, and in 10% acetic acid, solidify, up to the final PUD/PET ratio that obtains 60%.The 0.45% siloxanes aqueous solution is applied on this product, then it is cutd open into two equal parts along the cross section, and each part is carried out surface finish.Final non-weaving cloth is called P3.
Comparative Examples 7,8,9,10(preparation of non-weaving cloth)
Carry out these Comparative Examples according to embodiment 7, difference is, uses a kind of different aqueous emulsion.By using following each solution impregnation respectively, obtain product P 4, P5, P6:Witcobond298-78 (polyether-based, aliphatic, anion PUD, produce by Baxenden Chemicals), Astacin Finish PF (polyether-based, aliphatic, anion PUD, produce by Basf) and Impranil DLV (polyether-polyester base, aliphatic, anion PUD is produced by Bayer).
Embodiment 11(preparation of non-weaving cloth)
Sample with 10.5%Witcobond279-34 aqueous emulsion of polyurethane (anion PUD is produced by Baxenden Chemicals for polyether-based, aliphatic) dipping felt F1; This PUD is applied on this base sheet by the metering of suitable dampener, and the PUD/PET ratio of acquisition is 45% (total PUD requirement 3/4).CH 10%
3Solidify this PUD in the COOH solution, PUD is fixed on this base sheet.Then,, dissolve this TLAS " sea " component, wash this intermediate blank sheet with massive laundering subsequently by in 10% NaOH, carrying out handling in 20 minutes in 60 ℃.The intermediate blank sheet that so obtains is flooded once more with the PUD that uses in flooding for the first time, and in 10% acetic acid, solidify, up to the final PUD/PET ratio that obtains 60%.The 0.45% siloxanes aqueous solution is applied on this product, then it is cutd open into two equal parts along the cross section, and each part is carried out surface finish.Final non-weaving cloth is called P7.
Embodiment 12(preparation of non-weaving cloth)
Sample with 7.5%Witcobond279-34 aqueous emulsion of polyurethane (anion PUD is produced by Baxenden Chemicals for polyether-based, aliphatic) dipping felt F1; This PUD is applied on this base sheet by the metering of suitable dampener, and the PUD/PET ratio of acquisition is 30% (total PUD requirement 1/2).By at micro-wave oven (power 10KV, 5 minutes drying times), PUD is fixed on this base sheet.Then,, dissolve this TLAS " sea " component, wash this intermediate blank sheet with massive laundering subsequently by in 10% NaOH, carrying out handling in 20 minutes in 60 ℃.The intermediate blank sheet that so obtains is flooded once more with the PUD that uses in flooding for the first time, and with the microwave mode drying, up to the final PUD/PET ratio that obtains 60%.The 0.45% siloxanes aqueous solution is applied on this product, then it is cutd open into two equal parts along the cross section, and each part is carried out surface finish.Final non-weaving cloth is called P8.
Use PLA also to obtain similar result as " sea " component or use PTT as " island " component, the product of putting in order has surface of good outward appearance, " feel " and physical and mechanical properties.
Chemistry-physical characteristic and ABRASION RESISTANCE are listed in table 2.
Table 2
| Product | The type of " fixing " | Intensity L (Kg/cm) | Intensity T (Kg/cm) | Percentage elongation L (%) | Percentage elongation T (%) | Outward appearance after the abrasion * | Abrasion weightless (%) * |
| P3 | At CH 3Solidify among the COOH | 10.5 | 7.0 | 70 | 110 | 4/5 | 13％ |
| P4 | At CH 3Solidify among the COOH | 9.7 | 6.9 | 72 | 115 | 4/5 | 12％ |
| P5 | At CH 3Solidify among the COOH | 11.3 | 8.2 | 67 | 106 | 4/5 | 14％ |
| P6 | At CH 3Solidify among the COOH | 9.5 | 6.8 | 82 | 120 | 4/5 | 12％ |
| P7 | At CH 3Solidify among the COOH | 9.9 | 7.0 | 62 | 100 | 4/5 | 14％ |
| P8 | Microwave | 10.7 | 7.3 | 67 | 105 | 4/5 | 14％ |
| P9 " dissolving of sea, back " technology | At CH 3Solidify among the COOH | 8.5 | 6.0 | 70 | 105 | 2/3 | 20％ |
| P10 | At CH 3Solidify among the COOH | 12.0 | 9.0 | 65 | 105 | 4/5 | 11％ |
| P11 | At CH 3Solidify among the COOH | 11.5 | 8.6 | 71 | 110 | 4/5 | 12％ |
| P12 | At CH 3Solidify among the COOH | 11.0 | 8.3 | 73 | 115 | 4/5 | 13％ |
*On the Martindale instrument, carry out the abrasion of 20000 circulations with the pressure of 12Kpa.
After material experiences this abrasion test, compare 5 standard samples with ocular estimate, estimate outward appearance.
Embodiment 17
Except using 3 kinds of polyurethane to be used for carrying out as embodiment 7 dipping second time respectively, obtain following product from Comparative Examples 8,9 and 10:
P14 (PUD that uses is Astacin Finish PF)
P15 (PUD that uses is Witcobond298-18)
P16 (PUD that uses is Impranil DLV)
The characteristic of these products is listed in table 2.
Claims (18)
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| ITMI2002A000769 | 2002-04-10 | ||
| IT2002MI000768A ITMI20020768A1 (en) | 2002-04-10 | 2002-04-10 | PROCEDURE FOR THE EFFICIENT USE OF A BIDIRECTIONAL RADIO CHANNEL |
| ITMI2002A002686 | 2002-12-19 | ||
| ITMI20022686 ITMI20022686A1 (en) | 2002-12-19 | 2002-12-19 | PROCESS FOR THE PRODUCTION OF A NON MICROFIBROUS FABRIC |
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| CN1316119C true CN1316119C (en) | 2007-05-16 |
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| CN1938461B (en) * | 2004-03-30 | 2011-04-27 | 帝人纤维株式会社 | Sea-island type composite fiber and manufacturing method thereof |
| CN101608351B (en) * | 2009-07-03 | 2011-09-28 | 山东同大海岛新材料股份有限公司 | Fusing alloying island fibre and production method thereof |
| CN101671917B (en) * | 2009-08-25 | 2011-06-01 | 浙江航天无纺布有限公司 | Non-woven fabric used for synthetic leather and artificial leather and production method thereof |
| ITMI20120043A1 (en) * | 2012-01-17 | 2013-07-18 | Alcantara Spa | MICROFIBROSO PRODUCT AND ITS USE AS A COATING FOR THE PREPARATION OF COVERS AND HOUSINGS |
| ITMI20121780A1 (en) | 2012-10-22 | 2014-04-23 | Alcantara Spa | NEW PROCESS FOR THE PREPARATION OF A NON-WOVEN FABRIC SYNTHETIC MICRO-FIBROUS SUEDE |
| KR102332011B1 (en) * | 2013-09-30 | 2021-11-26 | 주식회사 쿠라레 | Napped artificial leather and manufacturing method therefor |
| CN105113273B (en) * | 2015-09-02 | 2018-06-22 | 安安(中国)有限公司 | A kind of production method of the superfine fiber chemical leather with density gradient structure |
| CN106223058A (en) * | 2016-08-29 | 2016-12-14 | 福建华阳超纤有限公司 | A kind of light aging resisting and the manufacture method of wear-resisting waterborne suede super fiber leather |
| CN106757491A (en) * | 2016-12-27 | 2017-05-31 | 宁波高新区敦和科技有限公司 | A kind of method of modifying of antibiotic multifunctional fibre material |
| WO2019148487A1 (en) * | 2018-02-05 | 2019-08-08 | 浙江梅盛新材料有限公司 | Ultrafine fiber fabric and manufacturing process therefor |
| CN115094635A (en) * | 2022-06-28 | 2022-09-23 | 东风汽车集团股份有限公司 | Noctilucent suede material and preparation method and application thereof |
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| US4390566A (en) * | 1981-03-09 | 1983-06-28 | Toray Industries, Inc. | Method of producing soft sheet |
| EP0943727A2 (en) * | 1998-03-17 | 1999-09-22 | Milliken Research Corporation | Method of making a polyurethane suede-like fabric/elastomer composite |
| JP2000303368A (en) * | 1999-04-26 | 2000-10-31 | Kuraray Co Ltd | Suede leather-like sheet |
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