CN101096778A - Process for producing polyether type comfortable spandex fibre - Google Patents
Process for producing polyether type comfortable spandex fibre Download PDFInfo
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- CN101096778A CN101096778A CNA2007100152470A CN200710015247A CN101096778A CN 101096778 A CN101096778 A CN 101096778A CN A2007100152470 A CNA2007100152470 A CN A2007100152470A CN 200710015247 A CN200710015247 A CN 200710015247A CN 101096778 A CN101096778 A CN 101096778A
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Abstract
The invention discloses a preparing method of a new type spandex fibre in spandex preparing technique domain, which comprises the following steps: (1)providing Polytetrahydrofuran; (2)providing 4, 4'-diphenylmethane diisocyanate; (3)reacting; getting terminated Polytetrahydrofuran; setting the mole ratio of the Polytetrahydrofuran and the 4, 4'-diphenylmethane diisocyanate at (1.55-2.15): 1; (4)providing dissolvent; mixing; dissolving the terminated Polytetrahydrofuran; forming solution; (5)mixing the solution and enlargering chain agent mixture; forming polyurethane urea solution; (6)spinning the polyurethane urea solution; forming spandex. This product possesses good hand touch and comfortable wear.
Description
One, technical field
The present invention relates to a kind of manufacture method of novel spandex fibre, particularly a kind of preparation method with polyether type comfortable spandex fibre of excellent handle belongs to spandex fibre manufacturing technology field.
Two, technical background
Spandex is a kind of elastomeric textile fabric, and its extension at break is generally 500%-700%, and elastic recovery rate is generally greater than 90%, the fracture strength height, therefore, spandex fibre be applied to knitting widely and woven fabric in.Many patented technologies about spandex production aspect have been arranged at present, as U.S. US5981686, US5000899, US5708118 etc., however the spandex silk of producing by these methods is harder, cause fabric harder after being applied to fabric, feel is relatively poor, and wearability is relatively poor, therefore, need develop a kind of novel spandex comfortable and easy to wear, to satisfy the growing requirement of taking.
Three, summary of the invention
The objective of the invention is to solve the weak point that above-mentioned prior art exists, provide a kind of feel better, the preparation method of polyether type comfortable spandex fibre comfortable and easy to wear.
The preparation method of polyether type comfortable spandex fibre may further comprise the steps:
(1) provides poly-(tetramethylene ether) glycol;
(2) provide 4, the 4-methyl diphenylene diisocyanate;
(3) will gather (tetramethylene ether) two pure and mild 4,4-methyl diphenylene diisocyanate hybrid reaction obtains poly-(tetramethylene ether) glycol of end-blocking, wherein the mol ratio of vulcabond and poly-(tetramethylene ether) glycol is (1.55-2.15): 1;
(4) provide poly-(tetramethylene ether) glycol of solvent dissolving end-blocking to form solution;
(5) poly-(tetramethylene ether) glycol solution and the mixture of chain extenders of mixing end-blocking form polyurethane urea solutions; The viscosity of the polyurethane urea solutions that forms is 1000 to 5000 pools.
(6), form spandex with the polyurethane urea solutions spinning.
The polymerization solvent for use is N, dinethylformamide or N,N-dimethylacetamide;
In the mixture of chain extenders, comprise at least a chain terminating agent, chain terminating agent is the primary amine or the secondary amine of single functionality, promptly comprises a kind of primary amine or secondary amine terminator of single functionality at least;
In the expanding chain pharmaceutical solution, comprise that molar percentage is the ethylenediamine of 50-85, molar percentage is the 2 methyl pentamethylenediamine of 15-50, and when 2 methyl pentamethylenediamine content 50%, the feel of spandex is better.
Poly-(tetramethylene ether) glycol has the number-average molecular weight of 1500-4000, does not contain molecular weight in poly-(tetramethylene ether) glycol and is lower than 300 low-molecular-weight diol.
In order to control the polyurethane-urea molecular weight, to use a kind of single functionality chain terminating agent at least, as dimethylamine, diethylamine, two-n-butylamine, n-butylamine, n-hexylamine, cyclohexylamine, monoethanolamine and their mixture, preferred chain terminating agent such as n-butylamine, cyclohexylamine, diethylamine, monoethanolamine.
Various proper additive can be added in the polyurethane urea solutions after chain extension finishes, as TITANIUM DIOXIDE DELUSTRANT, and antioxidant Tinuvin 622, UV stabilizer T inuvin 234, dyeing intensifier etc.
The preparation method of polyether type comfortable spandex fibre of the present invention, it is harder to have solved spandex silk spandex silk in the clothes process, the problem that fabric feeling is relatively poor, the spandex silk feel of producing is better, comfortable and easy to wear, its reason is to use mixture of chain extenders, and the macromolecular flexibility of spandex is better, therefore on the basis that guarantees the elastomeric polyurethane fiber relaxation shrinkage, improved the wearability of fabric greatly.
Four, the specific embodiment
The present invention is described in further detail below in conjunction with embodiment, but these embodiment must not be interpreted as the limitation of the present invention that goes up in all senses.
Embodiment 1
Polytetramethylene ether diol (Cao Jing industry park, PolyTHF 1800 BASF Shanghai) 340 grams and 4,4-methyl diphenylene diisocyanate (Yantai ten thousand magnificent Wanante MDI-100) 78 grams are at 85 ℃ of reaction 120min, obtain the prepolymer that two ends have isocyanate group, add 693 gram dimethylacetylamide dissolvings and form solution.Add fast while stirring 5 the gram ethylenediamines, 3 the gram 2 methyl pentamethylenediamines, 1 the gram monoethanolamine be dissolved in 180 the gram dimethylacetylamides in formed solution, carry out chain extending reaction, obtain the polyurethane urea solutions of solid content 33%.Add TiO2 2 grams then, Tinuvin 622 2 grams, Tinuvin 328 1 grams after mixing, are squeezed in dry spinning in the square path by spinnerets.The spandex fibre that forms has good hand feeling and comfortableness.
Embodiment 2
Polytetramethylene ether diol (Cao Jing industry park, PolyTHF 1800 BASF Shanghai) 340 grams and 4,4-methyl diphenylene diisocyanate (Yantai ten thousand magnificent Wanante MDI-100) 84 grams are at 85 ℃ of reaction 120min, obtain the prepolymer that two ends have isocyanate group, add 672 gram dimethylacetylamide dissolvings and form solution.Add fast while stirring 5.5 the gram ethylenediamines, 4 the gram 2 methyl pentamethylenediamines, 1 the gram n-butylamine be dissolved in 182 the gram dimethylacetylamides in formed solution, carry out chain extending reaction, obtain the polyurethane urea solutions of solid content 33%.Add TiO2 2 grams then, Tinuvin 622 2 grams, Tinuvin 328 1 grams after mixing, are squeezed in dry spinning in the square path by spinnerets.The spandex fibre that forms has good hand feeling and comfortableness.
The preparation method of above embodiment polyether type comfortable spandex fibre, all used the mixture of chain extenders 2 methyl pentamethylenediamine to make chain extender, the macromolecular flexibility of spandex is better, the spandex silk feel of producing is better, comfortable and easy to wear, therefore on the basis that guarantees the elastomeric polyurethane fiber relaxation shrinkage, improved the wearability of fabric greatly.
Claims (8)
1, the preparation method of polyether type comfortable spandex fibre is characterized in that may further comprise the steps:
(1) provides poly-(tetramethylene ether) glycol;
(2) provide 4, the 4-methyl diphenylene diisocyanate;
(3) will gather (tetramethylene ether) two pure and mild 4,4-methyl diphenylene diisocyanate hybrid reaction obtains poly-(tetramethylene ether) glycol of end-blocking, wherein the molar ratio range of vulcabond and poly-(tetramethylene ether) glycol is (1.55-2.15): 1;
(4) provide poly-(tetramethylene ether) glycol of solvent dissolving end-blocking to form solution;
(5) poly-(tetramethylene ether) glycol solution and the mixture of chain extenders of mixing end-blocking form polyurethane urea solutions;
(6), form spandex with the polyurethane urea solutions spinning.
According to the preparation method of the described polyether type comfortable spandex fibre of claim 1, it is characterized in that 2, the viscosity of the polyurethane urea solutions of formation is 1000 to 5000 pools.
According to the preparation method of the described polyether type comfortable spandex fibre of claim 1, it is characterized in that 3, the polymerization solvent for use is N, dinethylformamide or N,N-dimethylacetamide.
4, according to the preparation method of the described polyether type comfortable spandex fibre of claim 1, it is characterized in that, in the mixture of chain extender, comprise at least a chain terminating agent, chain terminating agent is the primary amine or the secondary amine of single functionality, promptly comprises a kind of primary amine or secondary amine terminator of single functionality at least.
5, according to the preparation method of the described polyether type comfortable spandex fibre of claim 4, it is characterized in that, in the mixture of chain extender, comprise the ethylenediamine of 50 to 85 molar percentages, the 2 methyl pentamethylenediamine of 15 to 50 molar percentages.
6, according to the preparation method of the described polyether type comfortable spandex fibre of claim 1, it is characterized in that,
Poly-(tetramethylene ether) glycol has the number-average molecular weight of 1500-4000, does not contain molecular weight in poly-(tetramethylene ether) glycol and is lower than 300 low-molecular-weight diol.
According to the preparation method of the described polyether type comfortable spandex fibre of claim 4, it is characterized in that 7, the single functionality chain terminating agent is dimethylamine, or diethylamine, or two-n-butylamine, or n-butylamine, or n-hexylamine, or cyclohexylamine, or monoethanolamine, or their mixture.
8, according to the preparation method of the described polyether type comfortable spandex fibre of claim 1, it is characterized in that, do not influence under the characteristic prerequisite of spandex silk, additive adds in the polyurethane urea solutions after chain extension finishes, additive is a TITANIUM DIOXIDE DELUSTRANT, antioxidant Tinuvin 622, UV stabilizer T inuvin 234, dyeing intensifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100152470A CN101096778A (en) | 2007-07-06 | 2007-07-06 | Process for producing polyether type comfortable spandex fibre |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100152470A CN101096778A (en) | 2007-07-06 | 2007-07-06 | Process for producing polyether type comfortable spandex fibre |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469463B (en) * | 2008-07-15 | 2011-03-30 | 烟台氨纶股份有限公司 | Preparation of polyether type high resilience spandex fibre and product produced thereby |
| CN101575406B (en) * | 2009-04-30 | 2012-04-04 | 杭州舒尔姿氨纶有限公司 | Preparation method of urethane elastic fiber spinning original solution by PPG dry method |
| CN102534856A (en) * | 2010-12-10 | 2012-07-04 | 烟台泰和新材料股份有限公司 | Preparation method of spandex spinning stock solution by PCL dry method |
| CN101760798B (en) * | 2009-12-24 | 2012-07-18 | 烟台泰和新材料股份有限公司 | Manufacturing method of spandex heavy denier yarn |
| CN101736432B (en) * | 2009-12-24 | 2012-09-12 | 烟台泰和新材料股份有限公司 | Production method of anti-yellowing polyurethane elastic fiber |
| CN104141176A (en) * | 2014-07-29 | 2014-11-12 | 连云港杜钟氨纶有限公司 | Spandex dyeing assistant and preparation method thereof |
| CN104278354A (en) * | 2014-10-28 | 2015-01-14 | 浙江华峰氨纶股份有限公司 | Preparation method of flesh-colored spandex |
| CN105239187A (en) * | 2015-11-13 | 2016-01-13 | 淄博正大聚氨酯有限公司 | Ultraviolet-proof polyurethane compound fabric and preparation method thereof |
| CN109487361A (en) * | 2018-11-23 | 2019-03-19 | 万华化学集团股份有限公司 | Spandex fibre and preparation method with good heat resistance and low temperature shape stability |
| CN110331467A (en) * | 2019-06-24 | 2019-10-15 | 郑州中远氨纶工程技术有限公司 | A kind of super fine denier spandex and preparation method thereof to interweave with terylene |
| CN115434051A (en) * | 2022-09-21 | 2022-12-06 | 杭州麒隆化纤有限公司 | High-elasticity modified spandex covered yarn and preparation method thereof |
-
2007
- 2007-07-06 CN CNA2007100152470A patent/CN101096778A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469463B (en) * | 2008-07-15 | 2011-03-30 | 烟台氨纶股份有限公司 | Preparation of polyether type high resilience spandex fibre and product produced thereby |
| CN101575406B (en) * | 2009-04-30 | 2012-04-04 | 杭州舒尔姿氨纶有限公司 | Preparation method of urethane elastic fiber spinning original solution by PPG dry method |
| CN101760798B (en) * | 2009-12-24 | 2012-07-18 | 烟台泰和新材料股份有限公司 | Manufacturing method of spandex heavy denier yarn |
| CN101736432B (en) * | 2009-12-24 | 2012-09-12 | 烟台泰和新材料股份有限公司 | Production method of anti-yellowing polyurethane elastic fiber |
| CN102534856A (en) * | 2010-12-10 | 2012-07-04 | 烟台泰和新材料股份有限公司 | Preparation method of spandex spinning stock solution by PCL dry method |
| CN102534856B (en) * | 2010-12-10 | 2014-08-13 | 烟台泰和新材料股份有限公司 | Preparation method of spandex spinning stock solution by PCL dry method |
| CN104141176A (en) * | 2014-07-29 | 2014-11-12 | 连云港杜钟氨纶有限公司 | Spandex dyeing assistant and preparation method thereof |
| CN104141176B (en) * | 2014-07-29 | 2016-01-13 | 连云港杜钟新奥神氨纶有限公司 | A kind of spandex dyeing auxiliaries and preparation method thereof |
| CN104278354A (en) * | 2014-10-28 | 2015-01-14 | 浙江华峰氨纶股份有限公司 | Preparation method of flesh-colored spandex |
| CN105239187A (en) * | 2015-11-13 | 2016-01-13 | 淄博正大聚氨酯有限公司 | Ultraviolet-proof polyurethane compound fabric and preparation method thereof |
| CN109487361A (en) * | 2018-11-23 | 2019-03-19 | 万华化学集团股份有限公司 | Spandex fibre and preparation method with good heat resistance and low temperature shape stability |
| CN109487361B (en) * | 2018-11-23 | 2021-07-23 | 万华化学集团股份有限公司 | Spandex fiber with good heat resistance and low-temperature setting property and preparation method thereof |
| CN110331467A (en) * | 2019-06-24 | 2019-10-15 | 郑州中远氨纶工程技术有限公司 | A kind of super fine denier spandex and preparation method thereof to interweave with terylene |
| CN110331467B (en) * | 2019-06-24 | 2021-10-26 | 郑州中远氨纶工程技术有限公司 | Superfine denier spandex interwoven with terylene and preparation method thereof |
| CN115434051A (en) * | 2022-09-21 | 2022-12-06 | 杭州麒隆化纤有限公司 | High-elasticity modified spandex covered yarn and preparation method thereof |
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