CN104073913A - Hydroscopic and fast dry spandex fiber and preparation method thereof - Google Patents
Hydroscopic and fast dry spandex fiber and preparation method thereof Download PDFInfo
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- CN104073913A CN104073913A CN201410322430.5A CN201410322430A CN104073913A CN 104073913 A CN104073913 A CN 104073913A CN 201410322430 A CN201410322430 A CN 201410322430A CN 104073913 A CN104073913 A CN 104073913A
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Abstract
The invention relates to a hydroscopic and fast dry spandex fiber and a preparation method thereof. The preparation method comprises the following steps: (1) mixing polytetramethylene ether glycol and 4,4'-diphenylmethane diisocyanate for reacting to obtain a prepolymer 1, mixing polyethylene oxide and/or epoxypropane and 4,4'-diphenylmethane diisocyanate in N,N-dimethylacetamide for reacting to obtain a prepolymer 2, uniformly blending the prepolymer 1 and the prepolymer 2, and rapidly adding N,N-dimethylacetamide into the prepolymer mixture to form a solution; (2) performing a reaction on the prepolymer solution and a mixed diamine chain extender to obtain a polymer solution; (3) adding special auxiliary slurry into the polymer solution, stirring and curing, thereby obtaining a spinning solution; and (4) carrying out spinning by spinning equipment, thereby obtaining the hydroscopic and fast dry spandex fiber. The hydroscopic and fast dry spandex fiber has a hydroscopic and fast dry function and the comfort of a spandex fiber fabric is greatly improved.
Description
Technical field
The present invention relates to functional chemical fibre and manufacture method technology thereof, be specially a kind of preparation method's technology of hydroscopic fast-drying spandex fibre.
Background technology
Along with the continuous lifting of national life level, consumer requires more and more higher to the level of comfort of fabric, and possessing hydroscopic fast-drying function also will become one of condition of high quality fabric.Spandex plays an important role to promoting fabric quality, in the Application Areas of fabric, constantly expands, and the content in fabric is also in continuous lifting.Develop so a kind of hydroscopic fast-drying spandex fibre just increasingly important, not only promote the elasticity of fabric, and promote the comfortableness of fabric.
At present less about patented technology and the document of hydroscopic fast-drying spandex fibre production aspect, therefore, need to develop a kind of new technology of producing hydroscopic fast-drying spandex fibre, to meet the needs of garment industry development.
Summary of the invention
Technical problem: the technical problem that quasi-solution of the present invention is determined is the manufacture method of a kind of hydroscopic fast-drying spandex fibre of design.The implementation process of this manufacture method is stable, and the spandex fibre moisture absorption efficiency of preparation is high, possesses hydroscopic fast-drying function, improved spandex fibre drapability, unwinding, homogeneity oils.This hydroscopic fast-drying spandex fibre manufacturing technique is ripe, does not need special installation, is convenient to industrializing implementation.
Technical scheme: the mass percent of a kind of hydroscopic fast-drying spandex fibre of the present invention consists of:
Described polytetramethylene ether diol base fibre-forming polymer is to obtain prepolymer by polytetramethylene ether diol and 4,4'-methyl diphenylene diisocyanate hybrid reaction.
Described poly(ethylene oxide) and/or expoxy propane base fibre-forming polymer are to obtain prepolymer by poly(ethylene oxide) and/or expoxy propane and 4,4'-methyl diphenylene diisocyanate hybrid reaction in DMA; Wherein, the molecular weight of poly(ethylene oxide) and/or expoxy propane is 1200～4000.
The molecular weight of described polypropylene carboxylate is 3000～5000, and related salt ion is one or more in lithium, sodium, potassium, magnesium calcium.
Described anti ultraviolet agent is 2-(2'-hydroxyl-3', 5'-di-tert-butyl-phenyl)-benzotriazole; Antioxidant is two (N, the amino 4-phenyl of N-dimethyl hydrazides) methane; Lubricant is dolomol; Delustering agent is titanium dioxide.
The preparation method of hydroscopic fast-drying spandex fibre of the present invention comprises the following steps:
1) by raw material polytetramethylene ether diol and 4,4'-methyl diphenylene diisocyanate mixes, and at 75～90 ℃ of reaction 100～120min, prepares prepolymer 1, wherein 4, the mol ratio of 4'-methyl diphenylene diisocyanate and polytetramethylene ether diol is (1.80～2.00): 1;
2) by raw material poly(ethylene oxide) and/or expoxy propane and 4,4'-methyl diphenylene diisocyanate is at N, in N-dimethylacetylamide, mix, mass percent concentration is 50.0～70.0%, at 80～95 ℃ of reaction 120～150min, prepare prepolymer 2, wherein 4, the mol ratio of 4'-methyl diphenylene diisocyanate and poly(ethylene oxide) and/or expoxy propane is (1.80～2.00): 1;
3) described prepolymer 1 and prepolymer 2 are mixed, be dissolved into solvent DMA, obtain pre-polymer solution, at the temperature of 45～60 ℃, store;
4) prepare hybrid diamine chain extender: one or both in ethylenediamine, butanediamine are dissolved into solvent DMA, the hybrid diamine chain extender that to form mass percent concentration be 1.00～8.00%;
5) described hybrid diamine chain extender joined in described pre-polymer solution and stir, wherein the molal quantity of amido and the mole ratio of isocyanate group are (0.90～1.30): 1, react the polymer solution that formation mass percent concentration is 35～45%;
6) prepare auxiliary agent slurry: anti ultraviolet agent, antioxidant, lubricant, delustering agent are joined to N, in N-dimethylacetylamide and grind 20～40 hours, then add polypropylene carboxylate, stir, the auxiliary agent slurry that formation mass percent concentration is 30～40%;
7) described auxiliary agent slurry is added in described polymer solution, through 30～40 hours, stir slaking, adopt spinnerets, by dry spinning, form easy dyeing spandex fiber.
The spinneret orifice diameter of described spinnerets is 0.10～0.20mm, and distance between borehole is 1.0～5.0mm.
Beneficial effect: the present invention, by utilizing special fibre-forming polymer, additive and special fiber surface form, not only promotes the wettability power of spandex fibre, and can derive fast moisture, reaches the effect of fabric quick-drying.Through special spinnerets, utilize the principle of infinitesimal accumulation, prepared special-shaped spandex dimensionally stable, the homogeneity of raising product.Utilize the tangent formed groove of fiber, by siphonic effect, can derive fast the moisture of body surface, improve body surface microenvironment, be conducive to health.Prepared spandex fibre dimensionally stable, homogeneity is good, and drapability is good, improves the class of fabric.Manufacturing technique of the present invention is ripe, and equipment is not had to specific (special) requirements, and industrializing implementation is easy, and functional material is with low cost, is convenient to promote.
The specific embodiment
Easy dyeing spandex fiber quality percentage of the present invention consists of:
Described fibre-forming polymer is by polytetramethylene ether diol and 4,4'-methyl diphenylene diisocyanate hybrid reaction obtains prepolymer 1, and poly(ethylene oxide) and/or expoxy propane and 4,4'-methyl diphenylene diisocyanate is at N, in N-dimethylacetylamide, hybrid reaction obtains prepolymer 2, by after prepolymer 1 and 2 blend evenly, in prepolymer, add fast DMA to form solution; Pre-polymer solution reacts obtained with hybrid diamine chain extender.
Described poly(ethylene oxide) and/or the molecular weight of expoxy propane are 1200～4000; The molecular weight of described polypropylene carboxylate is 3000～5000, and related salt ion is one or more in lithium, sodium, potassium, magnesium calcium.
Described anti ultraviolet agent is 2-(2'-hydroxyl-3', 5'-di-tert-butyl-phenyl)-benzotriazole, and antioxidant is two (N, the amino 4-phenyl of N-dimethyl hydrazides) methane, and lubricant is dolomol, and delustering agent is titanium dioxide.
The spinneret orifice diameter of described spinnerets is 0.10～0.20mm, and distance between borehole is 1.0～5.0mm.
Embodiment 1:
The first step: the preparation of pre-polymer solution
1) by raw material polytetramethylene ether diol and 4,4'-methyl diphenylene diisocyanate mixes, and at 75～90 ℃ of reaction 120min, prepares prepolymer 1, wherein 4, the mol ratio of 4'-methyl diphenylene diisocyanate and polytetramethylene ether diol is 1.80:1;
2) by raw material poly(ethylene oxide) and 4,4'-methyl diphenylene diisocyanate is at N, in N-dimethylacetylamide, mix, mass percent concentration is 50.0%, at 80 ℃ of reaction 150min, prepare prepolymer 2, wherein 4, the mol ratio of 4'-methyl diphenylene diisocyanate and poly(ethylene oxide) is 1.90:1;
3) prepolymer 1 and prepolymer 2 are mixed, be dissolved into solvent DMA, obtain pre-polymer solution, at the temperature of 45 ℃, store.
Second step: the preparation of fibre-forming polymer
1) by one or both in ethylenediamine, butanediamine, be dissolved into solvent DMA, the hybrid diamine chain extender that to form mass percent concentration be 7.0%;
2) above-mentioned hybrid diamine chain extender joined in the pre-polymer solution described in the first step and stir, wherein the molal quantity of amido and the mole ratio of isocyanate group are 1.08:1, react the polymer solution that formation mass percent concentration is 40.0%.
The 3rd step: auxiliary agent slurry preparation
1) just anti ultraviolet agent, antioxidant, lubricant, delustering agent join N, in N-dimethylacetylamide and grind 30 hours, then add polypropylene carboxylate, by agitator stir, grinder grinds and to reach homodisperse object, the mass percent concentration of the slurry of preparation is 40%, wherein anti ultraviolet agent is that 2-(2'-hydroxyl-3', 5'-di-tert-butyl-phenyl)-benzotriazole, antioxidant are that two (N, the amino 4-phenyl of N-dimethyl hydrazides) methane, lubricant are that dolomol, delustering agent are titanium dioxide.
The 4th step: the preparation of spinning solution
The auxiliary agent slurry of the fibre-forming polymer solution of preparation and preparation is uniformly dispersed in mixing plant, through 30 hours, stirs slaking, prepare spinning solution.
The 5th step: through special spinnerets spinning hydroscopic fast-drying spandex fibre
A. air quantity: enterprising/last time/next time=0.65/0.35/0.28; B. temperature (℃): upper river in Zhejiang Province/middle river in Zhejiang Province/lower river in Zhejiang Province=260/225/199; C. spinning speed: 900m/min, makes hydroscopic fast-drying spandex fibre.
Wear hydroscopic fast-drying spandex fibre fabric, the micro-sweat environment of body surface, after testing, humidity 95% inside fabric, air humidity 65%; After 10min, humidity 70% inside fabric.
Comparative example 1:
The first step: the preparation of pre-polymer solution
1) by raw material polytetramethylene ether diol and 4,4'-methyl diphenylene diisocyanate mixes, and at 75～90 ℃ of reaction 120min, prepares prepolymer 1, wherein 4, the mol ratio of 4'-methyl diphenylene diisocyanate and polytetramethylene ether diol is 1.80:1;
2) prepolymer 1 is dissolved into solvent DMA, obtains pre-polymer solution, at the temperature of 45 ℃, store.
Second step: the preparation of fibre-forming polymer
1) by one or both in ethylenediamine, butanediamine, be dissolved into solvent DMA, the hybrid diamine chain extender that to form mass percent concentration be 7.0%;
2) above-mentioned hybrid diamine chain extender joined in the pre-polymer solution described in the first step and stir, wherein the molal quantity of amido and the mole ratio of isocyanate group are 1.08:1, react the polymer solution that formation mass percent concentration is 40.0%.
The 3rd step: auxiliary agent slurry preparation
1) just anti ultraviolet agent, antioxidant, lubricant, delustering agent join N, in N-dimethylacetylamide and grind 30 hours, by agitator stir, grinder grinds and to reach homodisperse object, the mass percent concentration of the slurry of preparation is 40%, wherein anti ultraviolet agent is that 2-(2'-hydroxyl-3', 5'-di-tert-butyl-phenyl)-benzotriazole, antioxidant are that two (N, the amino 4-phenyl of N-dimethyl hydrazides) methane, lubricant are that dolomol, delustering agent are titanium dioxide.
The 4th step: the preparation of spinning solution
The auxiliary agent slurry of the fibre-forming polymer solution of preparation and preparation is uniformly dispersed in mixing plant, through 30 hours, stirs slaking, prepare spinning solution.
The 5th step: through common spinnerets spinning spandex fibre
A. air quantity: enterprising/last time/next time=0.65/0.35/0.28; B. temperature (℃): upper river in Zhejiang Province/middle river in Zhejiang Province/lower river in Zhejiang Province=260/225/199; C. spinning speed: 900m/min, makes common spandex fibre.
Wear common spandex fibre fabric, the micro-sweat environment of body surface, after testing, humidity 95% inside fabric, air humidity 65%; After 10min, humidity 90% inside fabric.
Claims (7)
1. a hydroscopic fast-drying spandex fibre, is characterized in that the mass percent of this hydroscopic fast-drying spandex fibre consists of:
2. a kind of hydroscopic fast-drying spandex fibre according to claim 1, is characterized in that described polytetramethylene ether diol base fibre-forming polymer is that 4'-methyl diphenylene diisocyanate hybrid reaction obtains prepolymer by polytetramethylene ether diol and 4.
3. a kind of hydroscopic fast-drying spandex fibre according to claim 1, it is characterized in that described poly(ethylene oxide) and/or expoxy propane base fibre-forming polymer are by poly(ethylene oxide) and/or expoxy propane and 4,4'-methyl diphenylene diisocyanate hybrid reaction in DMA obtains prepolymer; Wherein, the molecular weight of poly(ethylene oxide) and/or expoxy propane is 1200～4000.
4. a kind of hydroscopic fast-drying spandex fibre according to claim 1, is characterized in that the molecular weight of described polypropylene carboxylate is 3000～5000, and related salt ion is one or more in lithium, sodium, potassium, magnesium calcium.
5. a kind of hydroscopic fast-drying spandex fibre according to claim 1, is characterized in that described anti ultraviolet agent is 2-(2'-hydroxyl-3', 5'-di-tert-butyl-phenyl)-benzotriazole; Antioxidant is two (N, the amino 4-phenyl of N-dimethyl hydrazides) methane; Lubricant is dolomol; Delustering agent is titanium dioxide.
6. a preparation method for hydroscopic fast-drying spandex fibre as claimed in claim 1, is characterized in that the method comprises the following steps:
1) by raw material polytetramethylene ether diol and 4,4'-methyl diphenylene diisocyanate mixes, and at 75～90 ℃ of reaction 100～120min, prepares prepolymer 1, wherein 4, the mol ratio of 4'-methyl diphenylene diisocyanate and polytetramethylene ether diol is (1.80～2.00): 1;
2) by raw material poly(ethylene oxide) and/or expoxy propane and 4,4'-methyl diphenylene diisocyanate is at N, in N-dimethylacetylamide, mix, mass percent concentration is 50.0～70.0%, at 80～95 ℃ of reaction 120～150min, prepare prepolymer 2, wherein 4, the mol ratio of 4'-methyl diphenylene diisocyanate and poly(ethylene oxide) and/or expoxy propane is (1.80～2.00): 1;
3) described prepolymer 1 and prepolymer 2 are mixed, be dissolved into solvent DMA, obtain pre-polymer solution, at the temperature of 45～60 ℃, store;
4) prepare hybrid diamine chain extender: one or both in ethylenediamine, butanediamine are dissolved into solvent DMA, the hybrid diamine chain extender that to form mass percent concentration be 1.00～8.00%;
5) described hybrid diamine chain extender joined in described pre-polymer solution and stir, wherein the molal quantity of amido and the mole ratio of isocyanate group are (0.90～1.30): 1, react the polymer solution that formation mass percent concentration is 35～45%;
6) prepare auxiliary agent slurry: anti ultraviolet agent, antioxidant, lubricant, delustering agent are joined to N, in N-dimethylacetylamide and grind 20～40 hours, then add polypropylene carboxylate, stir, the auxiliary agent slurry that formation mass percent concentration is 30～40%;
7) described auxiliary agent slurry is added in described polymer solution, through 30～40 hours, stir slaking, adopt spinnerets, by dry spinning, form easy dyeing spandex fiber.
7. the preparation method of hydroscopic fast-drying spandex fibre according to claim 6, the spinneret orifice diameter that it is characterized in that described spinnerets is 0.10～0.20mm, distance between borehole is 1.0～5.0mm.
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| CN107663671A (en) * | 2017-08-16 | 2018-02-06 | 东华大学 | A kind of thermal polyurethane elastomer and preparation method thereof |
| CN109797457A (en) * | 2019-01-17 | 2019-05-24 | 连云港杜钟新奥神氨纶有限公司 | A kind of moisture absorbing and sweat releasing polyurethane elastomeric fiber of bi-component |
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| CN109797457A (en) * | 2019-01-17 | 2019-05-24 | 连云港杜钟新奥神氨纶有限公司 | A kind of moisture absorbing and sweat releasing polyurethane elastomeric fiber of bi-component |
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| CN104073913B (en) | 2016-03-02 |
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