CN101481832A - Composite high elastic memory fibre - Google Patents
Composite high elastic memory fibre Download PDFInfo
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- CN101481832A CN101481832A CNA2009100289133A CN200910028913A CN101481832A CN 101481832 A CN101481832 A CN 101481832A CN A2009100289133 A CNA2009100289133 A CN A2009100289133A CN 200910028913 A CN200910028913 A CN 200910028913A CN 101481832 A CN101481832 A CN 101481832A
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- polyethylene terephthalate
- elastic memory
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Abstract
The invention discloses a complex high-elastic memory fiber. The fiber comprises the following components by weight: 30-70% of a polytrimethylene terephthalate component and 70-30% of a polyethylene terephthalate component which are compounded paratactically, the intrinsic viscosity of wet polytrimethylene terephthalate slices is 0.80-1.35dl/g, the intrinsic viscosity of wet polyethylene terephthalate slices is 0.45-0.85dl/g, the intrinsic viscosity of the wet polytrimethylene terephthalate slices is larger than that of the wet polyethylene terephthalate slices, and the intrinsic viscosity difference between the wet polytrimethylene terephthalate slices and the wet polyethylene terephthalate slices is between 0.15 and 1.0. The complex high-elastic memory fiber has the advantages of nice elasticity and memory function, good dyeability and high fiber modulus, and has high self-crimping performance after stretching, relaxation and heat setting, therefore, the fiber has high elasticity.
Description
Technical field
The present invention relates to a kind of pair of component composite high elastic memory fibre.
Background technology
PET is the abbreviation of polyethylene terephthalate, and the PET fiber has advantages such as modulus height, heat resistance is good, mechanical mechanics property plasticity is big, but shortcoming such as the PET fiber has the dyeing poor performance, and elasticity is little.
PTT is the abbreviation of polytrimethylene terephthalate, the intensity of this fiber is 30.91～35.32CN/tex, percentage elongation 30%～60%, fusing point is 223 ℃, fast 10 times of its crystallization speed than polyethylene terephthalate, fabulous elongation recovery percentage and soft chromatophilous characteristics are arranged, and memory function is a big characteristic of ptt fiber, and its fabric has excellent memory performance.So-called memory function is meant that fiber or fabric can independently return to the function of original form after external force effect distortion.
The two compound doughnuts of component of a kind of " 8 " font PET/PTT have appearred in the market, its preparation method mainly comprises the steps: to enter filament spinning component after (one) PTT and PET section are extruded, measured by screw rod respectively, carry out compound distribution, and merge into spun filament at two " C " shape spinnerets place.(2) the composite fibre spun filament of coming out from spinnerets through slow cooling, blow side, oil, operations such as spinning drawing-off, coiling obtain the compound doughnut of this " 8 " font.This fiber adopts two " C " shape spinneretss, and the fibre section is a hollow section, and this fiber warmth retention property is strong, flexible touch is arranged, but owing to leave cavity in the middle of its fiber, makes rigidity, the elasticity wretched insufficiency of fiber, and then make its memory function poor.
Publication number is to have disclosed a kind of parallel composite fiber that is composited side by side by cation dyeable copolyester component and polyethylene terephthalate component and preparation method thereof in the Chinese patent specification of CN1854355A, because this product does not contain the splendid PTT component of memory function, so the crimpiness of its product, elastic recovery well do not embody in actual fabric, and its fabric does not have memory function.
Summary of the invention
Technical problem to be solved by this invention is: will provide a kind of crimpiness, elastic recovery all good, and the fabulous composite high elastic memory fibre of memory function.
For solving the problems of the technologies described above, composite high elastic memory fibre of the present invention comprises: polytrimethylene terephthalate component that is combined with each other side by side and polyethylene terephthalate component, wherein, the polytrimethylene terephthalate component accounts for 30%～70% weight portion, and the polyethylene terephthalate component accounts for 70%～30% weight portion; The inherent viscosity of the wet section of polytrimethylene terephthalate is 0.80～1.35dl/g, the inherent viscosity of the wet section of polyethylene terephthalate is 0.45～0.85dl/g, and the inherent viscosity of the wet section of polytrimethylene terephthalate must be greater than the inherent viscosity of the wet section of polyethylene terephthalate and both inherent viscosity differences between 0.15～1.0.Described inherent viscosity difference is preferably between 0.5～0.9.
The preparation method of composite high elastic memory fibre of the present invention comprises the steps:
(1) enters filament spinning component after PTT and PET section is extruded, measured by screw rod respectively, carry out compound distribution, and merge into spun filament at the spinnerets place.
(2) the composite fibre spun filament of coming out from spinnerets through slow cooling, blow side, oil, the spinning drawing-off, reeling obtains this composite high elastic memory fibre.
The invention has the beneficial effects as follows: resulting composite high elastic memory fibre has better elastic, memory function, and dyeability is good, fiber modulus height, and stretched and relaxation heat setting, also have height from crimp property, thereby this fiber has high elasticity.The similar phone coil of wire that composite high elastic memory fibre had, the helical form of spring structure are curled and have been brought the unprecedented extension property of original 3-D crimped fiber to bicomponent fiber, in woven and knitted fabric, have the tendency that replaces spandex manufacturing elastic fabric, and have than spandex or brocade bag better elasticity persistence of ammonia yarn and DIMENSIONAL STABILITY.
The specific embodiment
Below in conjunction with specific embodiment content of the present invention is further described.But the present invention should not only limit to these embodiment.
Embodiment one
1. be that 60% weight portion PET section is first raw material A with consumption, enter the first material continuous drying tower, the PET that makes moisture content＜50ppm does section, but the melt extruded that enters first screw extruder becomes the spinning polyester fondant, the melt extruded process of first screw extruder does not have 3～5 sections thermals treatment zone, the heating-up temperature in each district is 265 ℃, 275 ℃, 285 ℃, 290 ℃, 290 ℃ (five district's screw rods), and this polyester fondant is transported in the spinning manifold (first screw extruder to polyester fondant between the spinning manifold through prefilter, large granular impurity in the polyester fondant is removed), and further be evenly distributed in the parallel type composite component and go, be first component.This PET melt carries out heating and melting by the biphenyl heating system that is added with common biphenyl (boiling point is 260 ± 2 ℃).
2. be that 40% weight portion PTT section is the second raw material B with consumption, enter the second material continuous drying tower, the PTT that makes moisture content＜50ppm does section, enter second screw extruder then, but become the PTT melt of spinning through the melt extruded of second screw extruder, the melt extruded process of second screw extruder does not have 3～5 sections thermals treatment zone, the heating-up temperature in each district is 245 ℃, 250 ℃, 255 ℃, 260%, 260 ℃ (five district's screw rods), and also be transported to this PTT melt in the spinning manifold, and further be evenly distributed in the parallel type composite component, be second component.This PTT melt carries out heating and melting by the biphenyl heating system that is added with low temperature biphenyl (boiling point is 240 ± 2 ℃).
3. FDY (full-drawn yarn) spinning process: the spun filament of moulding in the parallel type composite spining module is evenly extruded, through annealing device, lateral blowing (cooling forming), last oil system oils, pass through spinning shaft, through pre-Network device interlacing first draw-off godet, the second spinning reel drawing-off, winding head is reeled becomes drafted fibre, first, two draw-off godets need heat, winding speed is 3000～5500m/min, the PTT/PET composite high elastic memory fibre drafted fibre that processes, its fracture strength 〉=2.5CN/dtex, between elongation at break E=18～50%, yarn unevenness CV value＜1.2%.
4. POY (pre-oriented yarn) spinning process: the spun filament of moulding in the parallel type composite spining module is evenly extruded, through annealing device, lateral blowing (cooling forming), last oil system oils, pass through spinning shaft, through pre-Network device interlacing first draw-off godet, the second spinning reel drawing-off, winding head is reeled becomes preorientation POY, first, two draw-off godets need not heating, winding speed is 2000～3500m/min, the PTT/PET composite high elastic memory fibre pre-oriented yarn that processes, its fracture strength 〉=1.2CN/dtex, elongation at break between 70～140%, yarn unevenness CV value＜1.2%.
Embodiment 2:
With consumption is that the PET section of 50% weight portion is first raw material, is that the PTT section of 50% weight portion is second raw material with consumption, and all the other are with embodiment 1.
Embodiment 3:
With consumption is that the PET section of 40% weight portion is first raw material, is that the PTT section of 60% weight portion is second raw material with consumption, and all the other are with embodiment 1.
Claims (2)
1, a kind of composite high elastic memory fibre, it is characterized in that: comprise the polytrimethylene terephthalate component and the polyethylene terephthalate component that are combined with each other side by side, wherein, the polytrimethylene terephthalate component accounts for 30%～70% weight portion, and the polyethylene terephthalate component accounts for 70%～30% weight portion; The inherent viscosity of the wet section of polytrimethylene terephthalate is 0.80～1.35dl/g, the inherent viscosity of the wet section of polyethylene terephthalate is 0.45～0.85dl/g, and the inherent viscosity of the wet section of polytrimethylene terephthalate must be greater than the inherent viscosity of the wet section of polyethylene terephthalate and both inherent viscosity differences between 0.15～1.0.
2, a kind of composite high elastic memory fibre according to claim 1 is characterized in that: described inherent viscosity difference is between 0.5～0.9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100289133A CN101481832A (en) | 2009-01-21 | 2009-01-21 | Composite high elastic memory fibre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100289133A CN101481832A (en) | 2009-01-21 | 2009-01-21 | Composite high elastic memory fibre |
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| Publication Number | Publication Date |
|---|---|
| CN101481832A true CN101481832A (en) | 2009-07-15 |
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| CNA2009100289133A Pending CN101481832A (en) | 2009-01-21 | 2009-01-21 | Composite high elastic memory fibre |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974802A (en) * | 2010-09-21 | 2011-02-16 | 常熟市海欣复合材料有限公司 | Environment-friendly colored composite elastic fiber and processing method thereof |
| CN105155034A (en) * | 2015-07-06 | 2015-12-16 | 中国纺织科学研究院 | Heat bonded elastic fiber and preparation method thereof |
| CN105274637A (en) * | 2015-11-13 | 2016-01-27 | 福建经纬新纤科技实业有限公司 | Injected melt direct-spinning production process for PET-PTT composite elastic fibers |
| WO2016124027A1 (en) * | 2015-02-06 | 2016-08-11 | 欧阳文咸 | Production method for ptt-pet parallel composite flexible short fiber without mechanical crimping |
| CN106555252A (en) * | 2015-09-24 | 2017-04-05 | 东丽纤维研究所（中国）有限公司 | A kind of Bicomponent side-by-side composite fibre and preparation method thereof |
| CN106592105A (en) * | 2015-10-20 | 2017-04-26 | 常熟市永得利水刺无纺布有限公司 | Nonwoven fabric preparation method, nonwoven fabric and purpose thereof |
| CN106978648A (en) * | 2017-02-22 | 2017-07-25 | 吴江佳力高纤有限公司 | A kind of MSD novel elastics fiber and process |
| CN107858767A (en) * | 2017-10-12 | 2018-03-30 | 中纺院（天津）科技发展有限公司 | A kind of high resiliency composite fibre and preparation method thereof |
| CN110983465A (en) * | 2019-12-24 | 2020-04-10 | 江苏恒力化纤股份有限公司 | Method for preparing self-curling elastic combined filament yarn for knitting |
| CN111005128A (en) * | 2019-12-31 | 2020-04-14 | 江苏恒力化纤股份有限公司 | Preparation method of plaster cloth |
| CN111058115A (en) * | 2019-12-31 | 2020-04-24 | 江苏恒力化纤股份有限公司 | Crescent self-crimping elastic fiber and preparation method thereof |
| CN113862827A (en) * | 2021-09-06 | 2021-12-31 | 新疆蓝山屯河高端新材料工程技术研究中心有限公司 | Parallel composite elastic fiber, preparation method and application thereof, and composite spinning pack |
-
2009
- 2009-01-21 CN CNA2009100289133A patent/CN101481832A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974802A (en) * | 2010-09-21 | 2011-02-16 | 常熟市海欣复合材料有限公司 | Environment-friendly colored composite elastic fiber and processing method thereof |
| WO2016124027A1 (en) * | 2015-02-06 | 2016-08-11 | 欧阳文咸 | Production method for ptt-pet parallel composite flexible short fiber without mechanical crimping |
| CN105155034A (en) * | 2015-07-06 | 2015-12-16 | 中国纺织科学研究院 | Heat bonded elastic fiber and preparation method thereof |
| CN106555252A (en) * | 2015-09-24 | 2017-04-05 | 东丽纤维研究所（中国）有限公司 | A kind of Bicomponent side-by-side composite fibre and preparation method thereof |
| CN106592105A (en) * | 2015-10-20 | 2017-04-26 | 常熟市永得利水刺无纺布有限公司 | Nonwoven fabric preparation method, nonwoven fabric and purpose thereof |
| CN105274637A (en) * | 2015-11-13 | 2016-01-27 | 福建经纬新纤科技实业有限公司 | Injected melt direct-spinning production process for PET-PTT composite elastic fibers |
| CN106978648A (en) * | 2017-02-22 | 2017-07-25 | 吴江佳力高纤有限公司 | A kind of MSD novel elastics fiber and process |
| CN107858767A (en) * | 2017-10-12 | 2018-03-30 | 中纺院（天津）科技发展有限公司 | A kind of high resiliency composite fibre and preparation method thereof |
| CN110983465A (en) * | 2019-12-24 | 2020-04-10 | 江苏恒力化纤股份有限公司 | Method for preparing self-curling elastic combined filament yarn for knitting |
| CN110983465B (en) * | 2019-12-24 | 2021-12-21 | 江苏恒力化纤股份有限公司 | Method for preparing self-curling elastic combined filament yarn for knitting |
| CN111005128A (en) * | 2019-12-31 | 2020-04-14 | 江苏恒力化纤股份有限公司 | Preparation method of plaster cloth |
| CN111058115A (en) * | 2019-12-31 | 2020-04-24 | 江苏恒力化纤股份有限公司 | Crescent self-crimping elastic fiber and preparation method thereof |
| CN113862827A (en) * | 2021-09-06 | 2021-12-31 | 新疆蓝山屯河高端新材料工程技术研究中心有限公司 | Parallel composite elastic fiber, preparation method and application thereof, and composite spinning pack |
| CN113862827B (en) * | 2021-09-06 | 2024-03-15 | 新疆蓝山屯河高端新材料工程技术研究中心有限公司 | Parallel composite elastic fiber, preparation method and application thereof, and composite spinning assembly |
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Open date: 20090715 |