CN104928798A - Comfort spandex fiber and preparation method thereof - Google Patents
Comfort spandex fiber and preparation method thereof Download PDFInfo
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- CN104928798A CN104928798A CN201510289390.3A CN201510289390A CN104928798A CN 104928798 A CN104928798 A CN 104928798A CN 201510289390 A CN201510289390 A CN 201510289390A CN 104928798 A CN104928798 A CN 104928798A
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Abstract
The invention relates to a comfort spandex fiber and a preparation method thereof. A formula of the comfort spandex fiber comprises the following raw materials in percentage by mass: 60.0% to 70.8% of polyurethane fiber-forming polymer including a polyether glycol structural unit, 28.0% to 38.0% of polyurethane fiber-forming polymer including a dihydroxyl silicone oil structural unit, and 1.2% to 2.0% of additive. The preparation method comprises the following steps of 1, preparing a prepolymer including the polyether glycol structural unit and a prepolymer including the dihydroxyl silicone oil structural unit respectively, carrying out chain extension, so as to prepare a fiber-forming high polymer, and mixing the fiber-forming high polymer with additive slurry; 2, afterwards, storing and curing an obtained mixture under ultrasound and agitation, so as to prepare a spinning stock solution; 3, finally, preparing the comfort spandex fiber through a dry spinning device and technique. The comfort spandex fiber provided by the invention has the characteristics of high resilience and low modulus, and meets the requirements of the field of the application of comfort spandexes; the constraint feeling to skin is lightened; a consumer is enabled to feel comfortable and free doubly; an oil agent is not needed to be used for a silk coil in a coiling process; a product is more clean; the subsequent use is more convenient.
Description
Technical field
The present invention relates to functional chemical fiber and manufacture method technology thereof, be specially a kind of comfortable spandex fibre and preparation method thereof.
Background technology
Spandex is a kind of polyurethane elastomeric fiber, is one of key factor promoting textile quality.But when containing ammonia textiles and human body intimate contact, fit require high time, the elastomer of high-modulus will be repressive and bring sense of discomfort to human body due to it, and the elastomer of low modulus is faced with the low problem of resilience, and elastic fabric easily loses bullet.Comfortable spandex fibre not only can promote comfortableness, the durability of fabric, the more important thing is and does not use finish, more clean, can meet harsher instructions for use, reduce later process simultaneously, more energy-saving and environmental protection.
Patented technology at present in comfortable spandex fibre production and document less, therefore, need to develop a kind of new technology of producing comfortable spandex fibre, overcome the technical barrier in manufacturing technique simultaneously, to meet the needs of spandex fibre manufacturing technology and Application Areas development.
Summary of the invention
Technical problem: the technical problem that quasi-solution of the present invention is determined is a kind of comfortable spandex fibre of design and preparation method thereof.The implementation process of this preparation method is stablized, and the spandex fibre of preparation possesses the characteristics such as comfortable, clean, and the textiles of preparation is comfortable, durable.This comfortable spandex fibre manufacturing process technology is advanced, and equipment is conventional, can industrializing implementation.
Technical scheme: a kind of comfortable spandex fibre of the present invention, its mass percent formula is:
The preparation method of comfortable spandex fibre of the present invention is undertaken by following technique:
1.1) preparation is containing the pre-polymer solution of polyether polyol construction unit: by the mol ratio of vulcabond and polytetrahydrofuran diol be 1.6 ~ 1.9 at 70 ~ 90 DEG C prepolymerization 90 ~ 120min, after prepolymerization completes, in prepolymer, add DMA solvent make the pre-polymer solution that mass percent concentration is 50 ~ 60%;
1.2) preparation is containing the pre-polymer solution of dihydroxy silicone oil construction unit: by the mol ratio of vulcabond and dihydroxy silicone oil be 1.6 ~ 1.9 at 75 ~ 95 DEG C prepolymerization 90 ~ 150min, after prepolymerization completes, in prepolymer, add DMA solvent make the pre-polymer solution that mass percent concentration is 50 ~ 60%;
1.3) prepare mixed prepolymer solution: by step 1.1) with step 1.2) pre-polymer solution blended 30 ~ 60min at 25 ~ 40 DEG C, obtained mixed prepolymer solution;
1.4) fibroblast polymer solution is prepared: chain extender is the DMA solution of ethylenediamine, propane diamine, diethylamine, and mass percent concentration is 4.0 ~ 5.0%; Chain extender adds step 1.3 to) chain extension in the mixed prepolymer solution prepared, reaction temperature is 70 ~ 100 DEG C, the DMA solution of i.e. obtained fibre-forming polymer after chain extension;
1.5) auxiliary agent slurry is prepared: by the N of anti ultraviolet agent, antioxidant, lubricant, delustering agent and fibre-forming polymer, N-dimethylacetamide solution mixes, reach homodisperse object by agitator stirring, grinder grinding, the mass percent concentration of the slurry of preparation is 35 ~ 45%;
1.6) spinning solution is prepared: by step 1.4) the fibre-forming polymer solution prepared and step 1.5) after the auxiliary agent slurry prepared is uniformly dispersed in mixing plant, enter maturation stage.In maturation stage, temperature is 40 ~ 50 DEG C, stores 40 ~ 60 hours.In the process, ribbon impeller is provided with supersonic generator, frequency is 20 ~ 60KHz, after slaking completely, obtains spinning solution;
1.7) spinning solution is extruded from spinneret assembly, by dry spinning, obtained comfortable spandex fibre after solvent evaporates.
Wherein the relative molecular weight of dihydroxy silicone oil is 2000 ~ 3000.
Wherein anti ultraviolet agent is 2-(2'-hydroxyl-3', 5'-di-tert-butyl-phenyl)-benzotriazole, and antioxidant is two (the amino 4-phenyl of N, N-dimethyl-hydrazine) methane, and lubricant is dolomol, and delustering agent is titanium dioxide.
Beneficial effect: the present invention is by utilizing unique technique, and the comfortable spandex fibre of preparation possesses the characteristic of high resilience, low modulus, its product prepared, and as medical bandage, diaper, ribbon etc., greatly can alleviate the constraint sense to human body, improves level of comfort; Soft or hard section is separated more abundant, simultaneously soft section more soft, effectively promote resilience.During the package of silk volume, need not finish be used, just can ensure the unwinding of fiber.Owing to containing a large amount of silicon oxygen bonds in the strand of high polymer, the alkaline resistance properties of fiber can be improved further.When rear road uses, due to not containing finish, more clean on the one hand, the field application requirement harsher to hygienic requirements can be met, also save the oil removing process of downstream manufacturer on the other hand, reduce costs.Manufacturing technique of the present invention is advanced, does not have particular/special requirement to equipment, and industrializing implementation is easy, is convenient to promote.
Detailed description of the invention
A kind of comfortable spandex fibre of the present invention, its mass percent formula is:
The relative molecular weight of described dihydroxy silicone oil is 2000 ~ 3000.
Described anti ultraviolet agent is 2-(2'-hydroxyl-3', 5'-di-tert-butyl-phenyl)-benzotriazole; Antioxidant is two (the amino 4-phenyl of N, N-dimethyl-hydrazine) methane, and lubricant is dolomol, and delustering agent is titanium dioxide.
Embodiment 1:
The first step: prepare mixed prepolymer solution
1) preparation is containing the pre-polymer solution of polyether polyol construction unit: by the mol ratio of vulcabond and polytetrahydrofuran diol be 1.7 at 90 DEG C prepolymerization 90min, after prepolymerization completes, in prepolymer, add DMA solvent make the pre-polymer solution that mass percent concentration is 50%;
2) preparation is containing the pre-polymer solution of dihydroxy silicone oil construction unit: by the mol ratio of vulcabond and dihydroxy silicone oil be 1.7 at 95 DEG C prepolymerization 100min, after prepolymerization completes, in prepolymer, add DMA solvent make the pre-polymer solution that mass percent concentration is 50%; Wherein the relative molecular weight of dihydroxy silicone oil is 2500.
3) prepare mixed prepolymer solution: by step 1) with step 2) pre-polymer solution blended 35min at 40 DEG C, obtained mixed prepolymer solution;
Second step: preparation fibroblast polymer solution
Chain extender is the DMA solution of ethylenediamine, propane diamine, diethylamine, and mass percent concentration is 5.0%; Chain extender adds chain extension in the mixed prepolymer solution of preparation to, and reaction temperature is 80 DEG C, namely obtains the DMA solution of fibre-forming polymer after chain extension;
3rd step: preparation auxiliary agent slurry
By the N of anti ultraviolet agent, antioxidant, lubricant, delustering agent, fibre-forming polymer, N-dimethylacetamide solution mixes, homodisperse object is reached by agitator stirring, grinder grinding, the mass percent concentration of the slurry of preparation is 35%, wherein anti ultraviolet agent is 2-(2'-hydroxyl-3', 5'-di-tert-butyl-phenyl)-benzotriazole, antioxidant is two (the amino 4-phenyl of N, N-dimethyl-hydrazine) methane, lubricant is dolomol, and delustering agent is titanium dioxide;
4th step: prepare spinning solution
After the fibre-forming polymer solution of preparation and the auxiliary agent slurry of preparation being uniformly dispersed in mixing plant, enter maturation stage.In maturation stage, temperature is 40 DEG C, stores 60 hours.In the process, ribbon impeller is provided with supersonic generator, frequency is 60KHz, after slaking completely, obtains spinning solution;
4th step: spinning
Spinning solution is extruded from spinneret assembly, by dry spinning, obtained comfortable spandex fibre after solvent evaporates.Spinning condition:
A. air quantity: enterprising/last time/next time=0.55/0.30/0.23; B. temperature (DEG C): upper river in Zhejiang Province/middle river in Zhejiang Province/lower river in Zhejiang Province=260/245/200; C. spinning speed: 900m/min.
This fiber dimensious was 840 dawn, and the brute force of stretching 300% is 150 gram forces, and ultimate strength is 550 gram forces, and resilience is 94.5%.
Comparative example 1:
The first step: prepare pre-polymer solution
By the mol ratio of vulcabond and polytetrahydrofuran diol be 1.7 at 90 DEG C prepolymerization 90min, after prepolymerization completes, in prepolymer, add DMA solvent make the pre-polymer solution that mass percent concentration is 50%;
Second step: preparation fibroblast polymer solution
Chain extender is the DMA solution of ethylenediamine, propane diamine, diethylamine, and mass percent concentration is 5.0%; Chain extender adds chain extension in the mixed prepolymer solution of preparation to, and reaction temperature is 80 DEG C, namely obtains the DMA solution of fibre-forming polymer after chain extension;
3rd step: preparation auxiliary agent slurry
By the N of anti ultraviolet agent, antioxidant, lubricant, delustering agent, fibre-forming polymer, N-dimethylacetamide solution mixes, homodisperse object is reached by agitator stirring, grinder grinding, the mass percent concentration of the slurry of preparation is 35%, wherein anti ultraviolet agent is 2-(2'-hydroxyl-3', 5'-di-tert-butyl-phenyl)-benzotriazole, antioxidant is two (the amino 4-phenyl of N, N-dimethyl-hydrazine) methane, lubricant is dolomol, and delustering agent is titanium dioxide;
4th step: prepare spinning solution
After the fibre-forming polymer solution of preparation and the auxiliary agent slurry of preparation being uniformly dispersed in mixing plant, enter maturation stage.In maturation stage, temperature is 40 DEG C, stores 60 hours, after slaking completely, obtains spinning solution;
4th step: spinning
Spinning solution is extruded from spinneret assembly, by dry spinning, obtained common spandex fibre after solvent evaporates.Spinning condition:
A. air quantity: enterprising/last time/next time=0.55/0.30/0.23; B. temperature (DEG C): upper river in Zhejiang Province/middle river in Zhejiang Province/lower river in Zhejiang Province=260/245/200; C. spinning speed: 900m/min.
This fiber dimensious was 840 dawn, and the brute force of stretching 300% is 190 gram forces, and ultimate strength is 650 gram forces, and resilience is 92.5%.
Claims (4)
1. a comfortable spandex fibre, its mass percent formula is:
2. comfortable spandex fibre according to claim 1, is characterized in that, the relative molecular weight of described dihydroxy silicone oil is 2000 ~ 3000.
3. comfortable spandex fibre according to claim 1, it is characterized in that, described anti ultraviolet agent is 2-(2'-hydroxyl-3', 5'-di-tert-butyl-phenyl)-benzotriazole, antioxidant is two (the amino 4-phenyl of N, N-dimethyl-hydrazine) methane, lubricant is dolomol, and delustering agent is titanium dioxide.
4. a preparation method for comfortable spandex fibre as claimed in claim 1, is characterized in that, this preparation method is undertaken by following technique:
1.1) preparation is containing the pre-polymer solution of polyether polyol construction unit: by the mol ratio of vulcabond and polytetrahydrofuran diol be 1.6 ~ 1.9 at 70 ~ 90 DEG C prepolymerization 90 ~ 120min, after prepolymerization completes, in prepolymer, add DMA solvent make the pre-polymer solution that mass percent concentration is 50 ~ 60%;
1.2) preparation is containing the pre-polymer solution of dihydroxy silicone oil construction unit: by the mol ratio of vulcabond and dihydroxy silicone oil be 1.6 ~ 1.9 at 75 ~ 95 DEG C prepolymerization 90 ~ 150min, after prepolymerization completes, in prepolymer, add DMA solvent make the pre-polymer solution that mass percent concentration is 50 ~ 60%;
1.3) prepare mixed prepolymer solution: by step 1.1) with step 1.2) pre-polymer solution blended 30 ~ 60min at 25 ~ 40 DEG C, obtained mixed prepolymer solution;
1.4) fibroblast polymer solution is prepared: chain extender is the DMA solution of ethylenediamine, propane diamine, diethylamine, and mass percent concentration is 4.0 ~ 5.0%; Chain extender adds step 1.3 to) chain extension in the mixed prepolymer solution prepared, reaction temperature is 70 ~ 100 DEG C, the DMA solution of i.e. obtained fibre-forming polymer after chain extension;
1.5) auxiliary agent slurry is prepared: by the N of anti ultraviolet agent, antioxidant, lubricant, delustering agent and fibre-forming polymer, N-dimethylacetamide solution mixes, reach homodisperse object by agitator stirring, grinder grinding, the mass percent concentration of the slurry of preparation is 35 ~ 45%;
1.6) spinning solution is prepared: by step 1.4) the fibre-forming polymer solution prepared and step 1.5) after the auxiliary agent slurry prepared is uniformly dispersed in mixing plant, enter maturation stage.In maturation stage, temperature is 40 ~ 50 DEG C, stores 40 ~ 60 hours.In the process, ribbon impeller is provided with supersonic generator, frequency is 20 ~ 60KHz, after slaking completely, obtains spinning solution;
1.7) spinning solution is extruded from spinneret assembly, by dry spinning, obtained comfortable spandex fibre after solvent evaporates.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106381561A (en) * | 2016-10-31 | 2017-02-08 | 郑州中远氨纶工程技术有限公司 | Spandex fiber, preparation method of spandex fiber, and fabric |
| CN109322008A (en) * | 2018-10-09 | 2019-02-12 | 浙江华峰氨纶股份有限公司 | A method of improving spandex properties of product stability |
| 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 |
| CN110318114A (en) * | 2019-06-24 | 2019-10-11 | 郑州中远氨纶工程技术有限公司 | It is a kind of easily to unwind, prevent being adhered polyurethane fiber and preparation method thereof |
| WO2019213932A1 (en) * | 2018-05-11 | 2019-11-14 | Covestro Deutschland Ag | Thermoplastic polyurethane composition and use thereof |
| CN115948813A (en) * | 2023-01-31 | 2023-04-11 | 露乐健康科技股份有限公司 | Material with traceless anti-strangler function and preparation method and application thereof |
-
2015
- 2015-05-28 CN CN201510289390.3A patent/CN104928798A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106381561A (en) * | 2016-10-31 | 2017-02-08 | 郑州中远氨纶工程技术有限公司 | Spandex fiber, preparation method of spandex fiber, and fabric |
| WO2019213932A1 (en) * | 2018-05-11 | 2019-11-14 | Covestro Deutschland Ag | Thermoplastic polyurethane composition and use thereof |
| CN112771093A (en) * | 2018-05-11 | 2021-05-07 | 科思创知识产权两合公司 | Thermoplastic polyurethane composition and use thereof |
| CN109322008A (en) * | 2018-10-09 | 2019-02-12 | 浙江华峰氨纶股份有限公司 | A method of improving spandex properties of product stability |
| CN109322008B (en) * | 2018-10-09 | 2020-12-25 | 浙江华峰氨纶股份有限公司 | Method for improving performance stability of spandex product |
| 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 |
| CN110318114A (en) * | 2019-06-24 | 2019-10-11 | 郑州中远氨纶工程技术有限公司 | It is a kind of easily to unwind, prevent being adhered polyurethane fiber and preparation method thereof |
| CN115948813A (en) * | 2023-01-31 | 2023-04-11 | 露乐健康科技股份有限公司 | Material with traceless anti-strangler function and preparation method and application thereof |
| CN115948813B (en) * | 2023-01-31 | 2023-08-25 | 露乐健康科技股份有限公司 | Material with traceless tightening prevention function and preparation method and application thereof |
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Application publication date: 20150923 |