CN101311389A - Process for producing fine denier or superfine denier nylon fibre composition and fine denier or superfine denier nylon fibre - Google Patents
Process for producing fine denier or superfine denier nylon fibre composition and fine denier or superfine denier nylon fibre Download PDFInfo
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- CN101311389A CN101311389A CNA2007100994553A CN200710099455A CN101311389A CN 101311389 A CN101311389 A CN 101311389A CN A2007100994553 A CNA2007100994553 A CN A2007100994553A CN 200710099455 A CN200710099455 A CN 200710099455A CN 101311389 A CN101311389 A CN 101311389A
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Abstract
The invention discloses a method for producing a compound of fine denier nylon fiber or super fine denier nylon fiber or producing fine denier nylon fiber or super fine denier nylon fiber. The compound comprises nylon and a lanthanide rare-earth metal compound; wherein the weight of the rare-earth metal in the rare-earth metal compound is between 50ppm to 10 percent based on the weight of nylon used. The method for producing the fine denier nylon fiber or super fine denier nylon fiber is a melt-spinning method, which includes the step of adding a rare-earth metal compound during the process of nylon melt-spinning. Fine denier nylon fiber or super fine denier nylon fiber, the denier of which is smaller than 1, can be obtained by the method.
Description
Technical field
The present invention relates to the spinning material field, relate in particular to a kind of composition and a kind of method of producing thin dawn or superfine denier nylon fibre of producing thin dawn or superfine denier nylon fibre.
Background technology
In general, can the weave macromolecular material of usefulness comprises nylon (polyamide), polypropylene fibre (polypropylene), terylene (polyethylene terephthalate) and acrylic fibers (polyacrylonitrile) etc.These materials can form filament by spinning, thereby are used for textile industry.Melt spinning is a kind of spinning process commonly used, by melt spinning can obtain being suitable for the weaving fiber filaments of usefulness.Usually, the fiber filaments of using melt spinning method to obtain can reach the very thin degree (fiber number) at several dawn.With the weaving of the fiber filaments of such fiber number, establishment and product, for example garment material etc. have lot of advantages, so the application space, market is wide.
Yet, also more and more higher along with the raising of people's living standard for the requirement of textiles, be starved of some existing defectives that can overcome textiles.For example, above-mentioned mention such as products such as garment materials therefore feel is coarse, flexibility is poor, gas permeability is poor, water imbibition is poor, be easy to pilling etc. because its filament is thick.In order to address these problems, it is an important subject that the thin dawn of textile fabric or super fine denier change into.
At present, carried out a lot of researchs, and a lot of relevant reports have been arranged about thin dawn of textile fabric or super fine denierization.For example, on the Chinese side, thin dawn of polyester fiber or super fine denier technology in century the eighties succeed in developing.The thin dawn of polypropylene fibre or super fine denierization in last century the nineties develop by the Chinese Academy of Sciences chemistry Xu Duan husband academician of institute, this technology has realized industrialization at present, and correlation technique information is described in Chinese patent CN1073595, CN1058062, CN1076032 and CN1068075 to some extent.
But, use the technology of conventional melt spinning method manufacturing (surpassing) fine denier nylon fiber still immature for nylon.
Characteristics such as the nylon fiber fabric has absorbing sweat, lightweight, toughness is good, resilience good, antiacid alkali are best suited for one of man-made fabric of human dress.Application on clothes also is one of main application of nylon fiber.The thickness of nylon fiber can be characterized with filament number, usually, filament number be chemical fibre about 1 dawn fine count fiber and filament number to be chemical fibre about 0.5 dawn be called superfine Denier fibre.Nylon fiber is thin more, and the snugness of fit of its fabric is high more.Thin dawn or superfine Denier fibre can be made into soft, comfortable and easy to wear high-grade textiles, and very high economic worth is arranged.Thereby the exploitation of fine count fiber and superfine Denier fibre manufacturing technology is the new and high technology all paid attention to of each state in recent years.If nylon fiber can be carried out thin dawn or super fine denierization, that will open up another wide Application Areas for textile industry.
The diameter of fine count fiber and superfine Denier fibre is much thinner than conventional chemical fiber (filament number is generally 3-6 about the dawn), and the technical difficulty of making this class chemical fibre is quite big, need select appropriate spinning material and auxiliary agent for use.Also need the technical scheme and the strict control spinning of choose reasonable spinning, every production process such as drawing-off.
Yet up to the present, the research report that improves the nylon spinnability by modification mode is also few, thereby the main aspect of modification is by copolymerization or adds auxiliary agent and reduce the extension ability that the molecularly oriented of nylon when reeling improves monofilament.For example, (1) introduces asymmetric cell by copolymerization, reducing the ability of molecularly oriented, as, add the caprolactam and the assorted hexane of azo-cycle of asymmetric binary acid, diamine or band side group during common nylon polymerization; (2) when spinning, add acrylic acid derivative, as the methyl methacrylate polyester; (3) the employing long-chain nylon carries out spinning or add long-chain nylon and salt thereof or the like when the monomer polymerization of matrix nylon.
On the other hand, the improvement in spinning process mainly contain following aspect: (1) reduces the aperture of spinnerets, as using the diameter 0.2mm even the spinnerets of the spray silk of fine pore more, and the hole count of corresponding increase spinnerets; (2) filter to improve the degree of purity of spinning melt by high accuracy; (3) reduce spray silk level of stretch and degree of molecular orientation of tow in the winding process and extend abilities with more reservation tow; (4) take higher drafting multiple.
Characteristics such as the nylon fiber fabric has absorbing sweat, lightweight, toughness is good, resilience good, antiacid alkali are best suited for one of man-made fabric of human dress.Therefore, the nylon fiber monofilament is carried out the thin dawn or super fine denierization extremely important.And it is very important beyond doubt for producing thin dawn or superfine denier nylon fibre to propose suitable spinning material.
, with regard to mentioned prior art, all can't be reasonably with thin dawn of nylon fiber or super fine denierization, the fiber number of gained fiber is generally still at least greater than 1 dawn.
Summary of the invention
The object of the present invention is to provide a kind of composition that is used for producing thin dawn or superfine denier nylon fibre, can produce thin dawn or the superfine denier nylon fibre of fiber number less than 1 dawn by said composition.
Another object of the present invention is to provide a kind of method of producing thin dawn or superfine denier nylon fibre.
Major technique design of the present invention is, obtain to produce the composition of thin dawn or superfine denier nylon fibre by the compound that adds a kind of rare earth metal in the nylon of using to spinning, said composition has extraordinary performance, for example can be spun into thin dawn or superfine denier nylon fibre by method of the present invention.
Term in the literary composition " fiber number " is used for representing the thickness degree of nylon fiber, is that unit represents with " dawn " usually.
The invention provides a kind of composition of producing thin dawn or superfine denier nylon fibre, said composition comprises the compound of nylon and a kind of rare earth metal, especially a kind of compound of lanthanide rare metal, and said composition can also comprise other auxiliary agents.
Wherein, nylon is the basis of described composition, and therefore the common nylon that can use spinning to use among the present invention be not particularly limited nylon, for example can use nylon 6, nylon 66 etc.
The compound indefiniteness ground of rare earth metal comprises rare earth metal salt, complex compound or oxide.Described lanthanide rare metallic element is selected from lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium.The anion of described slaine or the part of complex compound (for example are selected from phosphate radical, carbonate, carboxylate radical, nitrate radical, sulfate radical, sulfonate radical, inferior sulfate radical, halide anion (as fluorine ion, chlorion and bromide ion etc.), pseudohalogen ion, thiocyanate radical) and other are nitrogenous and/or contain oxygen (as carboxylate radical) and/or sulfur-bearing organic ligand (as the beta-diketon class, acetylacetone,2,4-pentanedione for example) etc., also can be mixed ligand.But be not limited to this.
Particularly, the example of rare earth compound comprises: lanthanum chloride, cerium chloride, praseodymium chloride, neodymium chloride, samarium trichloride, Europium chloride, gadolinium chloride, terbium chloride, dysprosium chloride, holmium chloride, erbium chloride, thulium chloride, ytterbium chloride, lutecium chloride, the sulfonic acid lanthanum, cerous iodate, the sulfonic acid praseodymium, the sulfonic acid neodymium, the sulfonic acid samarium, the sulfonic acid europium, the sulfonic acid gadolinium, the sulfonic acid terbium, the sulfonic acid dysprosium, the sulfonic acid holmium, the sulfonic acid erbium, the sulfonic acid thulium, the sulfonic acid ytterbium, the sulfonic acid lutetium, the acetylacetone,2,4-pentanedione lanthanum, the acetylacetone,2,4-pentanedione cerium, the acetylacetone,2,4-pentanedione praseodymium, the acetylacetone,2,4-pentanedione neodymium, the acetylacetone,2,4-pentanedione samarium, the acetylacetone,2,4-pentanedione europium, the acetylacetone,2,4-pentanedione gadolinium, the acetylacetone,2,4-pentanedione terbium, the acetylacetone,2,4-pentanedione dysprosium, the acetylacetone,2,4-pentanedione holmium, the acetylacetone,2,4-pentanedione erbium, the acetylacetone,2,4-pentanedione thulium, the acetylacetone,2,4-pentanedione ytterbium, the acetylacetone,2,4-pentanedione lutetium, lanthana, cerium oxide, praseodymium oxide, neodymia, samarium oxide, europium oxide, gadolinium oxide, terbium oxide, dysprosia, holimium oxide, erbium oxide, thulium oxide, ytterbium oxide and luteium oxide etc.
The compound of lanthanide rare metal can make nylon fiber show good performance in the melt spinning process, for example high strength, high viscosity, high spinnability etc., thus make composition of the present invention can be spun into thin dawn or the superfine Denier fibre silk of fiber number less than 1 dawn.Can be spun into the effect of thin dawn or superfine denier nylon fibre in order to ensure composition, the use amount of the compound of lanthanide rare metal is as follows: based on the weight meter of used nylon, the weight of lanthanide rare metal is 50ppm～10wt%, be preferably 0.01%～5wt%, more preferably 0.1%～5wt% is preferably 0.5%～3wt% especially.If the use amount of the compound of lanthanide rare metal is lower than 50ppm, then its modified effect to nylon is good inadequately, causes composition to be difficult to be spun into thin dawn or superfine Denier fibre.If the use amount of the compound of rare earth metal is greater than 10wt%, then the amount of the compound of the lanthanide rare metal of Tian Jiaing is too much, and the weak effect that makes the composition spinning causes filametntary of poor qualityly, and fiber number can be higher than for 1 dawn.
Among the present invention, described auxiliary agent for example is antioxidant, ultra-violet absorber, light stabilizer and antistatic additive etc.Can use one or more auxiliary agents wherein.
Wherein, described antioxidant is Hinered phenols and phosphite, for example: antioxidant 1010, antioxidant CA, antioxidant 163, antioxidant 168, antioxidant 3114, anti-oxidant DLTP and antioxidant TNP etc.Can use wherein one or more.The addition of antioxidant is preferably 0.001wt%-1wt%, in the weight of used nylon.
Described ultra-violet absorber is organic aromatic substances such as benzotriazole, benzophenone class, as 2-(the 2-hydroxyl-3-tert-butyl group-5-aminomethyl phenyl)-5-chlorinated benzotriazole, 2-(2-hydroxyl-3, the 5-di-tert-butyl-phenyl)-5-chlorinated benzotriazole, Octabenzone, 2-(2-hydroxyl-5-octyl phenyl)-benzotriazole, 2-(2-hydroxyl-3,5-di-tert-butyl-phenyl)-benzotriazole, 2-(2-hydroxy-5-methyl base phenyl)-benzotriazole; Inorganic substances such as carbon black, zinc oxide, titanium dioxide.Can use wherein one or more.The addition of ultra-violet absorber is preferably 0.001wt%-1wt%, in the weight of used nylon.
Described light stabilizer is copper halide, hindered amines, phenols, benzophenone series, triazole system.Can use wherein one or more.The addition of described light stabilizer is preferably 0.001wt% one 1wt%, in the weight of used nylon.
Described antistatic additive is fatty alcohol phosphate, fatty alcohol oxyalkylene ether phosphide salt, fatty alcohol phosphate potassium, lauryl sodium sulfate salt, stearic acid monoglyceride, laruyl alcohol oxygen vinethene phosphate kalium salt, polyethylene glycol etc.Can use wherein one or more.The addition of described antistatic additive is preferably 0.001%-1wt%, in the weight of used nylon.
The present invention also provides the method for thin dawn of the above-mentioned composition production of a kind of usefulness or superfine denier nylon fibre, and this production method is a melt spinning method, is included in the compound that adds a kind of rare earth metal in the melt spinning process of nylon; Choose wantonly and add aforementioned auxiliary agent in the melt spinning process that also is included in nylon.
Term in the literary composition " melt spinning method " is meant the raw material heating and melting that spinning is used, molten mass is delivered to spinning machine after extruding by screw extruder, quantitatively be pressed into molten mass in the spinning components through measuring pump, by the spinneret orifice on the spinnerets molten mass is flowed out with the filament attitude, coiling oils, perhaps, promptly get thin dawn or superfine denier nylon fibre also through overheated drawing-off.
Term in the literary composition " melt spinning process " comprises from former expects all processes that become silk, for example the melting process that will carry out preprocessing process that raw material that spinning uses carries out, raw material and molten mass is become the silk process.
Produce in the method for thin dawn or superfine denier nylon fibre in the present invention, the compound of lanthanide rare metal can add in the random time in the melt spinning process, and this is not particularly limited.Yet, consider the convenience of interpolation, preferably adding this compound before the nylon heating and melting or during the heating and melting.Adding mode to this compound also is not particularly limited, can directly add, but adding again after the preferred additive that also itself and part nylon can be made the compound that comprises the lanthanide rare metal.
In the production method of thin dawn of the present invention or superfine denier nylon fibre, one preferred embodiment is: with the compound and the melt blending extrusion molding in advance of part nylon of described lanthanide rare metal, obtain the additive master batch, and then the additive master batch is carried out melt spinning with the nylon of remainder.This additive master batch can be regarded as the dispersion of compound in nylon of the lanthanide rare metal of high concentration, and wherein the compound concentrations of lanthanide rare metal is preferably 5～50wt%.The melt blending extrusion molding for example can be undertaken by equipment such as single screw extrusion machine, double screw extruders.
The present invention produces in the method for thin dawn or superfine denier nylon fibre, the same with the compound of lanthanide rare metal, described auxiliary agent for example antioxidant, ultra-violet absorber, light stabilizer and/or antistatic additive etc. can add in the random time in the melt spinning process, and this is not particularly limited.These functional aids can add simultaneously with the compound of lanthanide rare metal, also can add before or after it adds; If use multiple auxiliary agent simultaneously, then they can add simultaneously, also can successively add.In order to improve the simplicity of operation, preferably the compound of these auxiliary agents and rare earth metal adds use simultaneously.
For example, in a preferred embodiment, by melt blending, obtain a kind of additive that contains the compound of lanthanide rare metal by compound, auxiliary agent and the part nylon of lanthanide rare metal, again this additive is carried out melt spinning with the nylon of remainder.
In another preferred embodiment, compound, the auxiliary agent that will contain the lanthanide rare metal carries out melt spinning with nylon.
In the production method of thin dawn of the present invention or superfine denier nylon fibre, a preferred implementation of melt spinning method is: in spinning process, the temperature of described nylon molten mass is preferably in 130～320 ℃ of scopes, more preferably in 160～280 ℃ of scopes, most preferably in 250～270 ℃ of scopes, the hole count of spinnerets is 30-200, aperture 0.1-0.6mm, the speed of coiling be preferably 100-8000 rice/minute.
A kind of preferred embodiment in, before fusion,, comprise that compound (also can be its additive), nylon chips and the optional adjuvants of lanthanide rare metal carried out drying, to remove moisture and small-molecule substance to used material.Baking temperature is 90-100 ℃, and be 24-48 hour drying time.
Production method of the present invention, operation is simple, be convenient to operation, can obtain thin dawn or the superfine denier nylon fibre of fiber number less than 1 dawn, and in process of production, the nylon fiber silk can not rupture basically, and the mechanical property of thin dawn of gained or superfine Denier fibre is fine, and fiber number is minimum can to reach about 0.25 dawn.
A kind of preferred embodiment in, described optimal process also comprises thin dawn of gained or superfine denier nylon fibre silk carried out hot drawing-off, carrying out after obtaining undrawn yarn reeling through oiling, the temperature of hot drawing-off can be in 50-160 ℃ of scope.
The word of the expression scope that occurs in the literary composition, as " less than ", " greater than " and " ... in the scope " etc., its represented scope comprises the endpoint value of respective range.
The compound that adds rare earth metal can obviously improve the spinnability and the weaving security of nylon, thereby can obtain thin dawn or the superfine denier nylon fibre of fiber number less than 1 dawn.Though it is made an explanation without any existing applicable theory, but the inventor thinks that possible mechanism is as follows: the compound of lanthanide rare metal can improve the intensity of nylon molten mass, improve the viscosity of molten mass, reduce melt index (MI) MFR, thereby make it can stand bigger tensile force, even when molten mass becomes the semi-molten body behind the spray silk, still have intensity preferably, therefore can tolerate bigger tensile force, the power that makes filament in the melt spinning process, can bear in the drawing-down step to be born and can not rupturing, thereby improve the spinnability of nylon fiber, obtain thin dawn or superfine Denier fibre.But effect of the present invention is not subjected to the constraint of this theory.
Use composition of the present invention and production method can obtain thin dawn or superfine denier nylon fibre silk that fiber number was about for 0.25～1 dawn, this filametntary intensity is big, the elongation at break height.
The specific embodiment
Below further describe the present invention by specific embodiment.Characteristics of the present invention and advantage can become more clear along with these descriptions.But these embodiment only are exemplary, are used for the explanation that makes an explanation to the present invention, and scope of the present invention are not constituted any restriction.It should be appreciated by those skilled in the art; under the spirit and scope of the present invention situation; can aspect details the present invention be modified and/or change and/or of equal value the replacement, these modification/modifications/replacement all should fall in the claimed scope of the present invention.
Raw materials used
Nylon 6 slice: the pure nylon 6 slice of high-speed spinning that the prosperous profit in Ningbo company produces
Embodiment 1
The ratio of according to the form below 1 is used prepared in twin-screw extruder LaCl
3The additive master batch, wherein the temperature in each district of extruder is respectively: 260 ℃, 305 ℃, 290 ℃ and 290 ℃.。
Table 1: contain LaCl
3The additive formula of master batch
| Composition | Mass fraction |
| Nylon 6 slice | 80 |
| Slaine LaCl 3 | 20 |
| Antioxidant (antioxidant 1010/antioxidant 168) | 1 |
| PEG600 | 12 |
| PEG20000 | 3 |
With gained LaCl
3Additive master batch and nylon 6 slice in vacuum drying oven, carry out drying, to remove moisture and small-molecule substance.Baking temperature is between 90-100 ℃, and be 24-48 hour drying time.
And then with LaCl
3The additive master batch with carry out melt spinning after nylon 6 slice mixes with weight ratio at 8: 1000, melt screw extruder Zhong Ge district temperature be respectively 250 ℃, 270 ℃, 270 ℃, 275 ℃, spinning temperature is 250 ℃.The The hole diameter of spinneret that adopts is 0.35mm, and length is 0.7mm, and winding speed is 1700m/min, and can obtain the undrawn yarn fiber number is the fine denier nylon fiber at 0.79 dawn, and Mechanics Performance Testing intensity can reach 3.7cN/dtex, and elongation at break is 41%.
Embodiment 2
Method according to embodiment 1 prepares thin dawn or superfine denier nylon fibre, and difference is that the ratio of according to the form below 2 is used prepared in twin-screw extruder EuCl
3Additive master batch, the weight ratio of additive master batch and nylon 6 slice are that 1: 1000 spinning temperature is 255 ℃, and winding speed is 1400m/min, and resultant undrawn yarn carries out 1.20 times hot drawing-off on drawing machine.Obtaining fiber number is the fine denier nylon fiber at 0.70 dawn.Mechanics Performance Testing filament intensity reaches 4.0cN/dtex, elongation at break 19%.
Table 2:EuCl
3The additive formula of master batch
| Composition | Mass fraction |
| Nylon 6 slice | 80 |
| Slaine EuCl 3 | 40 |
| Antioxidant (antioxidant 1010/antioxidant 168) | 1 |
Embodiment 3
Method according to embodiment 1 prepares thin dawn or superfine denier nylon fibre, and difference is that the ratio of according to the form below 3 is used prepared in twin-screw extruder Tb (acetylacetone,2,4-pentanedione)
3Additive master batch, the weight ratio of additive master batch and nylon 6 slice are 5: 100, and spinning temperature is 255 ℃, and winding speed is 4000m/min.Obtaining fiber number is the fine denier nylon fiber at 0.40 dawn.Mechanics Performance Testing filament intensity reaches 3.9cN/dte, elongation at break 24%.
Table 3:Tb (acetylacetone,2,4-pentanedione)
3The additive formula of master batch
| Composition | Mass fraction |
| Nylon 6 slice | 80 |
| Slaine Tb (acetylacetone,2,4-pentanedione) 3 | 60 |
Embodiment 4
Use 6 parts of sulfonic acid lanthanums to carry out melt spinning with 100 parts of (being weight portion) nylon 6 slices, melt screw extruder Zhong Ge district temperature be respectively 250 ℃, 265 ℃, 265 ℃, 270 ℃, spinning temperature is 265 ℃.The The hole diameter of spinneret that adopts is 0.35mm, and length is 0.7mm, and winding speed is 6000m/min, and can obtain the undrawn yarn fiber number is the fine denier nylon fiber at 0.30 dawn, and Mechanics Performance Testing intensity can reach 3.5cN/dtex, and elongation at break is 42%.
Comparing embodiment 1
Not adding any other material only uses nylon 6 slice to carry out melt spinning, melt screw extruder Zhong Ge district temperature be respectively 260 ℃, 305 ℃, 290 ℃ 290 ℃, spinning temperature is 295 ℃, and winding speed is 900 meters/minute, and the spinnerets hole count is 48, the aperture is 0.3 millimeter, draw ratio 3: 1.Obtaining filament number is nylon 6 undrawn yarns at 2.7 dawn.Resulting nylon 6 undrawn yarns are carried out 3 times hot drawing-off, roller temperature 90 degree, hot plate temperature 160 degree, attempt to make nylon 6 fine count fibers that filament number was 0.9 dawn, experimental result shows, the coiling strand promptly ruptured every several minutes, can not obtain nylon 6 fine count fibers, can't realize steady production.
Comparing embodiment 2
To carry out melt spinning after 1000 parts of nylon 6 slices, 1 part of antioxidant (antioxidant 1010/antioxidant 168), 12 parts of PEG600 and 3 parts of PEG20000 mixing, melt spinning method as described in example 1 above, obtaining the undrawn yarn fiber number is the fine denier nylon fiber at 10 dawn, 100 ℃ of hot drawing-offs of carrying out 3.3 times of mechanics, obtain the nylon fiber silk at 3 dawn.Its intensity of performance test 3.6cN/dtex, elongation at break is 35%.
Comparing embodiment 3
Nylon 6 slice is carried out melt spinning according to the method for embodiment 4, and winding speed is 3000 meters/minute.The filametntary fiber number of gained was 3 dawn.Intensity is 4.3cN/dtex, and elongation at break is 28%.
Relatively can see by embodiment 1-4 and comparing embodiment 1-3, the nylon that has added the compound of rare earth metal can be spun into thin dawn or the superfine denier nylon fibre of fiber number less than 1 dawn, and the nylon that does not add the compound of rare earth metal can only spin fiber number is nylon fiber about 3 dawn, can't spin thin dawn or superfine denier nylon fibre at all.
Claims (10)
1, a kind of composition of producing thin dawn or superfine denier nylon fibre, said composition comprises the compound of nylon and a kind of rare earth metal, especially a kind of compound of lanthanide series metal, wherein, based on the weight meter of used nylon, the weight of the compound middle rare earth metallic element of rare earth metal is 50ppm～10%.
2, composition according to claim 1 is characterized in that, based on the weight meter of used nylon, the weight of described lanthanide rare metallic element is 0.005%～10%, more preferably 0.1%～5%, be preferably 0.5%～3% especially.
3, composition according to claim 1 and 2, it is characterized in that, salt, complex compound or oxide that described lanthanide rare metallic compound is a rare earth metal, described lanthanide rare metallic element is selected from lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium, and it is nitrogenous and/or contain oxygen and/or sulfur-bearing organic ligand or polynary part that the anion of described slaine or the part of complex compound are selected from phosphate radical, carbonate, carboxylate radical, nitrate radical, sulfate radical, sulfonate radical, inferior sulfate radical, halide anion, pseudohalogen ion and other.
4, composition according to claim 3 is characterized in that, said composition also comprises auxiliary agent, and described auxiliary agent for example is one or more in antioxidant, ultra-violet absorber, light stabilizer and the antistatic additive,
Wherein, described antioxidant is Hinered phenols and phosphite, as among antioxidant 1010, antioxidant CA, antioxidant 163, antioxidant 168, antioxidant 3114, anti-oxidant DLTP and the antioxidant TNP one or more, the addition of antioxidant is preferably 0.001wt%-1wt%, in the weight of used nylon;
Described ultra-violet absorber is organic aromatic substances such as benzotriazole, benzophenone class, as 2-(the 2-hydroxyl-3-tert-butyl group-5-aminomethyl phenyl)-5-chlorinated benzotriazole, 2-(2-hydroxyl-3, the 5-di-tert-butyl-phenyl)-5-chlorinated benzotriazole, Octabenzone, 2-(2-hydroxyl-5-octyl phenyl)-benzotriazole, 2-(2-hydroxyl-3,5-di-tert-butyl-phenyl)-benzotriazole, 2-(2-hydroxy-5-methyl base phenyl)-benzotriazole; Inorganic substances such as carbon black, zinc oxide, titanium dioxide can use wherein one or more, and the addition of ultra-violet absorber is preferably 0.001wt%-1wt%, in the weight of used nylon;
Described light stabilizer is copper halide, hindered amines, phenols, benzophenone series, triazole system, can use wherein one or more, and the addition of described light stabilizer is preferably 0.001wt%-1wt%, in the weight of used nylon;
Described antistatic additive is fatty alcohol phosphate, fatty alcohol oxyalkylene ether phosphide salt, fatty alcohol phosphate potassium, lauryl sodium sulfate salt, stearic acid monoglyceride, laruyl alcohol oxygen vinethene phosphate kalium salt, polyethylene glycol etc., can use wherein one or more, the addition of described antistatic additive is preferably 0.001wt%-1wt%, in the weight of used nylon.
5, a kind of additive of producing thin dawn or superfine denier nylon fibre, this additive comprises the compound of nylon and a kind of lanthanide rare metal, perhaps also comprise the auxiliary agent described in the claim 4, wherein the compound of lanthanide rare metal accounts for 5～50wt% of additive gross weight.
6, a kind of method of producing thin dawn or superfine denier nylon fibre, this production method is a melt spinning method, is included in the compound that adds the lanthanide rare metal in the melt spinning process of nylon; Choose wantonly in the melt spinning process that also is included in nylon and be added in the auxiliary agent described in the claim 4.
7, method according to claim 6 is characterized in that, at the compound that adds a kind of lanthanide rare metal before the nylon heating and melting or during the heating and melting,
And/or
Adding described auxiliary agent before the nylon heating and melting or during the heating and melting.
8, method according to claim 7 is characterized in that, compound and the melt blending extrusion molding in advance of part nylon with described lanthanide rare metal obtain the additive master batch, and then master batch is carried out melt spinning with the nylon of remainder.
9, according to the described method of claim 6-8, it is characterized in that: in spinning process, the temperature of described nylon molten mass is preferably in 130～320 ℃ of scopes, more preferably in 160～280 ℃ of scopes, most preferably in 250～270 ℃ of scopes, the hole count of spinnerets is 30-200, and the aperture is 0.1-0.6mm, the speed of coiling be preferably 100-8000 rice/minute.
10, a kind of thin dawn or superfine denier nylon fibre, this fiber is that raw material is made with each described composition of claim 1-4, the fiber number of this fiber was 0.2～1 dawn.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199283A (en) * | 2011-04-14 | 2011-09-28 | 杭州师范大学 | Nylon 6 resin, nylon 6 filament and preparation methods thereof |
| CN102206338A (en) * | 2011-04-14 | 2011-10-05 | 杭州师范大学 | Nylon 66 resin, nylon 66 filament and preparation method thereof |
| CN102234861A (en) * | 2011-05-17 | 2011-11-09 | 杭州师范大学 | Method for weaving ultrafine-denier porous nylon fabric |
| CN103436009A (en) * | 2013-09-23 | 2013-12-11 | 上海纳岩新材料科技有限公司 | Long glass fiber reinforced nylon composite material and preparation method thereof |
| CN103845954A (en) * | 2012-12-03 | 2014-06-11 | 北京大学 | Novel weaving method of nylon filter cloth, filter cloth weaved through the weaving method, and application of the filter cloth |
| CN103845955A (en) * | 2012-12-03 | 2014-06-11 | 北京大学 | Fine denier nylon filter cloth, preparation method and applications thereof |
| CN104947243A (en) * | 2015-06-24 | 2015-09-30 | 北京服装学院 | Preparation method for polypropylene/polyurethane X-ray shielding composite fiber containing lanthanide |
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2007
- 2007-05-21 CN CN200710099455A patent/CN100580160C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199283A (en) * | 2011-04-14 | 2011-09-28 | 杭州师范大学 | Nylon 6 resin, nylon 6 filament and preparation methods thereof |
| CN102206338A (en) * | 2011-04-14 | 2011-10-05 | 杭州师范大学 | Nylon 66 resin, nylon 66 filament and preparation method thereof |
| CN102199283B (en) * | 2011-04-14 | 2012-09-12 | 杭州师范大学 | Nylon 6 resin, nylon 6 filament and preparation methods thereof |
| CN102206338B (en) * | 2011-04-14 | 2012-09-12 | 杭州师范大学 | Nylon 66 resin, nylon 66 filament and preparation method thereof |
| CN102234861A (en) * | 2011-05-17 | 2011-11-09 | 杭州师范大学 | Method for weaving ultrafine-denier porous nylon fabric |
| CN103845954A (en) * | 2012-12-03 | 2014-06-11 | 北京大学 | Novel weaving method of nylon filter cloth, filter cloth weaved through the weaving method, and application of the filter cloth |
| CN103845955A (en) * | 2012-12-03 | 2014-06-11 | 北京大学 | Fine denier nylon filter cloth, preparation method and applications thereof |
| CN103845954B (en) * | 2012-12-03 | 2016-04-27 | 北京大学 | The new weave of nylon filtering cloth, filter cloth of being made into thus and uses thereof |
| CN103845955B (en) * | 2012-12-03 | 2016-04-27 | 北京大学 | Fine denier nylon filter cloth, Preparation Method And The Use |
| CN103436009A (en) * | 2013-09-23 | 2013-12-11 | 上海纳岩新材料科技有限公司 | Long glass fiber reinforced nylon composite material and preparation method thereof |
| CN104947243A (en) * | 2015-06-24 | 2015-09-30 | 北京服装学院 | Preparation method for polypropylene/polyurethane X-ray shielding composite fiber containing lanthanide |
| CN104947243B (en) * | 2015-06-24 | 2017-05-17 | 北京服装学院 | Preparation method for polypropylene/polyurethane X-ray shielding composite fiber containing lanthanide |
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