CN102345181A - Preparation method of adipic acid modified polyester fiber - Google Patents
Preparation method of adipic acid modified polyester fiber Download PDFInfo
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- CN102345181A CN102345181A CN 201110166060 CN201110166060A CN102345181A CN 102345181 A CN102345181 A CN 102345181A CN 201110166060 CN201110166060 CN 201110166060 CN 201110166060 A CN201110166060 A CN 201110166060A CN 102345181 A CN102345181 A CN 102345181A
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- adipic acid
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- modified polyester
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Abstract
The invention relates to an adipic acid modified polyester fiber which is prepared by steps of preparation of adipic acid modified polyester chips and blended FDY process spinning. Melt obtained by the process preparation of the invention has stable quality, and excellent chip spinning performance; the prepared high-shrinkage polyester short fiber has the characteristics of good shrinkage stability, uniform dyeing, and low production cost.
Description
Technical field
The present invention relates to a kind of preparation method of synthetic fiber, particularly, the present invention relates to a kind of preparation method of adipic acid modified polyester fibre.
Background technology
Terylene is as one of the big main force of three in synthetic fiber fiber, because of its good physics and chemical characteristic are widely used in garment material and other non-garment industry.Dacron product since coming out, also once with its drapability is good, intensity is high, well-pressed and be used as main textile raw material by downstream user and weave all kinds of textiless.Along with economic globalization, the market internationalization, people are also more and more higher to the requirement of clothes; Not only to have comfortableness; Also will have functionally, lining just develops to light, gentle, functional direction, and composite fibre materials just need improve constantly performance and satisfy requirements of weaving process.
Over past ten years, the development of China polyester industrial rapidly, polyester fiber output is 516.5 ten thousand tons of 2,700 ten thousand tons of developing into for the year ends 2010 at the beginning of 2000, average annual growth rate surpasses 25%, has accounted for 66% of global polyester output.Terylene has become the maximum synthetic fiber kind of output in the chemical fibre, is widely used in clothing, decoration, household textiles, fabrics for industrial use and national economy various aspects such as national defence, Industrial Engineering.5 years from now on, also will keep increasing fast.But as textile material, polyester fiber also has significant disadvantages.Therefore, the processing method of selection science, efficient, high-quality, energy-saving and environmental protection is to adapting to and promoting that the high speed sustainable development of polyester industrial, polyster fibre is most important.
Though in synthetic fiber, polyester fiber has the multiple performance of suitable textile applications and application in industry, thereby it has obtained amazing development since large-scale production.But along with the development of World Science development of technology and world industry, polyester fiber can not satisfy people's requirement fully on performance and function.The result of development and innovation makes people develop large quantities of differential, functionalization and high performance synthetic fiber.
The developing direction of PET industry has been represented in the development and application of present differential polyester fiber new varieties.The technology of differential polyester product exploitation roughly can reduce the following aspects:
(1) spining technology of compound spinning superfine fibre and spin pack design;
(2) the compound spining technology that spins bi-component functional fiber or fibre in differentiation;
(3) fused mass directly spinning prepares the complete set technology of thin dawn, micro denier polyester fiber;
(4) spining technology of various cross section Design of spinneret and profiled filament;
The spining technology of (5) three different fibers and mix fine Design of spinneret with plate;
(6) different contraction mixed fiber yarn Combined Machining Technology;
(7) polymer modification prepares the preparation of functional polyester and fiber thereof;
(8) polymer modification prepares the Application and Development of intelligent fiber and intelligent lining;
(9) the nano-powder in-situ polymerization prepares functional polyester and fiber thereof;
(10) preparation of multiple organic or inorganic nano particle and dispersion technology;
(11) preparation and the spining technology of organic or inorganic nano particle/polymer-matrix composite polyester material;
(12) natural fabric and synthetic fiber, chemical-fibres filaments and short fiber multidimensional combination technology.
Conventional polyester fiber, degree of crystallinity is higher, and percent thermal shrinkage is lower, generally is lower than 10%.Along with continually developing of the continuous expansion of polyester fiber Application Areas, fabric new product, increasing than the demand of the high-shrinkage fiber of high shrinkage to having, all kinds of high-shrinkage fibers are succeeded in developing in succession.
Generally can improve the shrinkage factor of polyester fiber through chemical modification method; Promptly in the production process of normal polyester, pass through to add the 3rd monomer; Destroy macromolecular regularity; Reduce crystallizing power; And the physical modification of combination spinning drafting process, make the high-shrinkage fibre that makes, boiling water shrinkage height and stable contraction rate; The strength and elongation index is good, satisfies the requirement of back processing better.Like Japan Patent (spy open flat 10-204721), Japan Patent (spy opens flat 10-25620) is disclosed is a kind of " highly shrinkable polyester staple fiber and manufacturing approach "; It is to adopt the copolyester section that adds adipic acid and other copolymerization component, produces the highly shrinkable polyester staple fiber in conjunction with the change of processing conditions after the spinning.Publication number CN1424445 is disclosed to be a kind of " manufacturing approach of high-contraction copolyester flock "; At first in the polyester slice polymerization; Add the 3rd monomer adipic acid; Manufacturing have highly shrinkable can polyester slice, then through the process adjustments production shrinkage factor of chip drying, spinning, drawing-off process greater than 35% high-shrinkage polyester staple fibers.
The present inventor has accomplished the present invention through further improving the technology of polyester and condensation reaction.
Summary of the invention
The objective of the invention is to continually develop functional polyester fiber in order to satisfy many-sided needs of people to weaving face fabric, we carry out modification through adding the 3rd monomer adipic acid to traditional polyester fiber.The melt quality that adopts prepared of the present invention to obtain is stable, the slice spinning function admirable; The high-shrinkage polyester staple fibers stable contraction rate property that makes is good, even dyeing, the characteristics that production cost is low.
To achieve these goals, the invention provides following technical scheme:
A kind of adipic acid modified polyester fibre, it is by the step preparation of preparation that comprises the section of adipic acid modified dacron and the spinning of blend FDY technology; The preparation technology who it is characterized in that described adipic acid modified dacron section comprises the steps:
At first; On continuous polycondensation equipment; Mol ratio according to terephthalic acid (TPA) (PTA), adipic acid, ethylene glycol (EG) monomer is 1: the ratio of 0.05-0.10:1.35-1.50 is measured continuously and stably separately and is joined in the slurry still and pulls an oar; Add zinc acetate, sulfamic acid in the making beating still; Wherein the mol ratio of the addition of zinc acetate and terephthalic acid (TPA) is 0.02-0.05%, and the addition of sulfamic acid and the mol ratio of phthalic acid are 0.03-0.05%;
Then, above-mentioned slurry continous-stable is delivered in esterification-I, the esterification-II agitated reactor, adds stabilizing agent in esterification-II agitated reactor, control esterification yield 96.0%-98.5%, the viscosity of melt is controlled to be 0.65-0.67; Carboxylate is pumped into polycondensation workshop section, under temperature 283-287 ℃ condition, makes the modified poly ester melt by polycondensating process, wherein said stabilizing agent is a barium stearate, and the mol ratio of its addition and terephthalic acid (TPA) is 0.15-0.32%; The modified poly ester melt is obtained the section of adipic acid modified dacron through Cast Strip, pelletizing and drying.
Wherein, Blend FDY spinning comprises the steps: above-mentioned adipic acid modified dacron section and terylene chips are cooled off → oil → path → first godet → second godet → winding process through screw extruder → static mixing → metering → filament spinning component → blowing in the ratio blend of mass ratio 25-30:70-75; The temperature of wherein controlling the melt Conveying pipeline is 260-268 ℃; Spinning body temperature is 278-285 ℃; Cross air blasting wind speed 0.35-0.70 meter per second; The first godet speed 900-1500m/min; Temperature 70-85 ℃; The second hot-rolling speed 3200-4500m/min, temperature 88-110 ℃.
Wherein, the temperature of esterification-I agitated reactor is controlled at 268-271 ℃, and control still internal pressure is 0.32-0.48 MPa.
Wherein, the temperature of esterification-II agitated reactor is controlled at 271-273 ℃, and control still internal pressure is 0.15-0.27 MPa.
Wherein, the temperature of prepolymerization reaction still is controlled at 283-285 ℃, and control still internal pressure is 2.2-7.8KPa.
Wherein, the temperature that final minification gathers agitated reactor is controlled at 285-287 ℃, and control still internal pressure is 50-85 Pa.
Wherein, described terylene chips is that routine has much light terylene chips, half delustring terylene chips or full-dull terylene chips.
Wherein, the fibre section for preparing of spinnerets through the adjustment filament spinning component is circle, trilobal, triangle, cross, king's font, hollow shape or five leaf.
The invention has the beneficial effects as follows that the present invention through reducing the fluctuation of various parameters in the spinning process, has suppressed the destabilizing factor in the adipic acid modified polyester fibre production process adopting stable technology to make.The inventive method can be accomplished on conventional spinning equipment, and tow strip is done evenly, and color and luster is evenly distributed, and fabric is smooth, and spinning properties is excellent.
The specific embodiment
To combine concrete embodiment that technical scheme of the present invention is done further to explain and explanation below.
Embodiment 1
At first; On continuous polycondensation equipment; Mol ratio according to terephthalic acid (TPA) (PTA), adipic acid (IPA), ethylene glycol (EG) monomer is 1: the ratio of 0.12:1.38 is measured continuously and stably separately and is joined in the slurry still and pulls an oar; Add antimony acetate, sulfamic acid in the making beating still; Wherein the mol ratio of the addition of zinc acetate and terephthalic acid (TPA) is 0.03%, and the addition of sulfamic acid and the mol ratio of terephthalic acid (TPA) are 0.03%;
Then, above-mentioned slurry continous-stable is delivered in esterification-I, the esterification-II agitated reactor, adds stabilizing agent in esterification-II agitated reactor, control esterification yield 98%, the viscosity of melt is controlled to be 0.66; Carboxylate is pumped into polycondensation workshop section, under temperature 283-287 ℃ condition, makes the modified poly ester melt by polycondensating process, wherein said stabilizing agent is a barium stearate, and the mol ratio of its addition and terephthalic acid (TPA) is 0.25%; The modified poly ester melt is obtained the section of adipic acid modified dacron through Cast Strip, pelletizing and drying.Wherein, concrete esterification and polycondensation reaction condition are as shown in table 1.
Esterification of table 1 modified poly ester and polycondensation reaction condition
| Condition | Esterification I | Esterification II | Precondensation | Final minification gathers |
| Reaction temperature/℃ | 268 | 272 | 283 | 285 |
| Reaction pressure | 0.37 MPa | 0.21 MPa | 5.6 KPa | 80 Pa |
Blend FDY spinning comprises the steps: above-mentioned adipic acid modified dacron section and terylene chips are cooled off → oil → path → first godet roller → second godet roller → winding process through screw extruder → static mixing → metering → filament spinning component → blowing in the ratio blend of mass ratio 25:75; The temperature of wherein controlling the melt Conveying pipeline is 265 ℃; Spinning body temperature is 280 ℃; Lateral blowing wind speed 0.45 meter per second; The first godet roller speed, 1000 m/min; 78 ℃ of temperature; The second hot-rolling speed, 3500 m/min, 98 ℃ of temperature.
Claims (8)
1. adipic acid modified polyester fibre, its step by preparation that comprises the section of adipic acid modified dacron and the spinning of blend FDY technology prepares; The preparation technology who it is characterized in that described adipic acid modified dacron section comprises the steps:
At first; On continuous polycondensation equipment; Mol ratio according to terephthalic acid (TPA) (PTA), adipic acid, ethylene glycol (EG) monomer is 1: the ratio of 0.05-0.10:1.35-1.50 is measured continuously and stably separately and is joined in the slurry still and pulls an oar; Add zinc acetate, sulfamic acid in the making beating still; Wherein the mol ratio of the addition of zinc acetate and terephthalic acid (TPA) is 0.02-0.05%, and the addition of sulfamic acid and the mol ratio of phthalic acid are 0.03-0.05%;
Then, above-mentioned slurry continous-stable is delivered in esterification-I, the esterification-II agitated reactor, adds stabilizing agent in esterification-II agitated reactor, control esterification yield 96.0%-98.5%, the viscosity of melt is controlled to be 0.65-0.67; Carboxylate is pumped into polycondensation workshop section, under temperature 283-287 ℃ condition, makes the modified poly ester melt by polycondensating process, wherein said stabilizing agent is a barium stearate, and the mol ratio of its addition and terephthalic acid (TPA) is 0.15-0.32%; The modified poly ester melt is obtained the section of adipic acid modified dacron through Cast Strip, pelletizing and drying.
2. the described adipic acid modified polyester fibre of claim 1; It is characterized in that blend FDY spinning comprises the steps: above-mentioned adipic acid modified dacron section and terylene chips are cooled off → oil → path → first godet → second godet → winding process through screw extruder → static mixing → metering → filament spinning component → blowing in the ratio blend of mass ratio 25-30:70-75; The temperature of wherein controlling the melt Conveying pipeline is 260-268 ℃; Spinning body temperature is 278-285 ℃; Cross air blasting wind speed 0.35-0.70 meter per second; The first godet speed 900-1500m/min; Temperature 70-85 ℃; The second hot-rolling speed 3200-4500m/min, temperature 88-110 ℃.
3. the described adipic acid modified polyester fibre of claim 1 is characterized in that described terylene chips is that routine has much light terylene chips, half delustring terylene chips or full-dull terylene chips.
4. the described adipic acid modified polyester fibre of claim 1 is characterized in that the fibre section is circle, trilobal, triangle, cross, king's font, hollow shape or five leaf.
5. the described adipic acid modified polyester fibre of claim 1 is characterized in that the temperature of esterification-I agitated reactor is controlled at 268-271 ℃, and control still internal pressure is 0.32-0.48 MPa.
6. the described adipic acid modified polyester fibre of claim 1 is characterized in that the temperature of esterification-II agitated reactor is controlled at 271-273 ℃, and control still internal pressure is 0.15-0.27 MPa.
7. the described adipic acid modified polyester fibre of claim 1 is characterized in that the temperature of prepolymerization reaction still is controlled at 283-285 ℃, and control still internal pressure is 2.2-7.8KPa.
8. the described adipic acid modified polyester fibre of claim 1 is characterized in that the temperature that final minification gathers agitated reactor is controlled at 285-287 ℃, and control still internal pressure is 50-85 Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110166060 CN102345181A (en) | 2011-06-21 | 2011-06-21 | Preparation method of adipic acid modified polyester fiber |
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| CN 201110166060 CN102345181A (en) | 2011-06-21 | 2011-06-21 | Preparation method of adipic acid modified polyester fiber |
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| CN102345181A true CN102345181A (en) | 2012-02-08 |
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| CN 201110166060 Pending CN102345181A (en) | 2011-06-21 | 2011-06-21 | Preparation method of adipic acid modified polyester fiber |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499084A (en) * | 2014-12-31 | 2015-04-08 | 江苏恒力化纤股份有限公司 | Polyester fiber FDY (Fully Drawn Yarn) with high dyeing rate and preparation method thereof |
| CN105586659A (en) * | 2014-10-22 | 2016-05-18 | 中国石油化工股份有限公司 | A production method of hydrophilic moisture-transmitting polyester staple fibers used for direct spinning |
| CN106400179A (en) * | 2016-08-31 | 2017-02-15 | 浙江盛元化纤有限公司 | Preparation method of lodging-resistant multi-difference polyester low-elastic filament |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10204721A (en) * | 1997-01-14 | 1998-08-04 | Toray Ind Inc | Highly shrinkable polyester staple and its production |
| CN1424445A (en) * | 2001-12-11 | 2003-06-18 | 上海第十化学纤维厂 | Production of high-contraction copolyester flock |
| CN101787583A (en) * | 2010-03-13 | 2010-07-28 | 浙江理工大学 | Method for preparing continuous polymerization directly-spun high-shrinkage polyester filaments |
-
2011
- 2011-06-21 CN CN 201110166060 patent/CN102345181A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10204721A (en) * | 1997-01-14 | 1998-08-04 | Toray Ind Inc | Highly shrinkable polyester staple and its production |
| CN1424445A (en) * | 2001-12-11 | 2003-06-18 | 上海第十化学纤维厂 | Production of high-contraction copolyester flock |
| CN101787583A (en) * | 2010-03-13 | 2010-07-28 | 浙江理工大学 | Method for preparing continuous polymerization directly-spun high-shrinkage polyester filaments |
Non-Patent Citations (1)
| Title |
|---|
| 《济南纺织化纤科技》 20031231 孙砚军 聚酯共聚改性剂的性能及应用 第27-29页 1-8 , 第1期 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105586659A (en) * | 2014-10-22 | 2016-05-18 | 中国石油化工股份有限公司 | A production method of hydrophilic moisture-transmitting polyester staple fibers used for direct spinning |
| CN105586659B (en) * | 2014-10-22 | 2019-11-12 | 中国石油化工股份有限公司 | It is a kind of for the hydrophilic production method for leading wet polyester staple fiber of Direct Spinning |
| CN104499084A (en) * | 2014-12-31 | 2015-04-08 | 江苏恒力化纤股份有限公司 | Polyester fiber FDY (Fully Drawn Yarn) with high dyeing rate and preparation method thereof |
| CN106400179A (en) * | 2016-08-31 | 2017-02-15 | 浙江盛元化纤有限公司 | Preparation method of lodging-resistant multi-difference polyester low-elastic filament |
| CN106400179B (en) * | 2016-08-31 | 2019-03-08 | 荣翔化纤有限公司 | A kind of manufacturing method of polyisocyanate low elastic polyester filament resistant to lodging |
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Application publication date: 20120208 |