CN102330174A - Isophthalic acid modified polyester fully drawn yarn - Google Patents

Isophthalic acid modified polyester fully drawn yarn Download PDF

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Publication number
CN102330174A
CN102330174A CN201110131273A CN201110131273A CN102330174A CN 102330174 A CN102330174 A CN 102330174A CN 201110131273 A CN201110131273 A CN 201110131273A CN 201110131273 A CN201110131273 A CN 201110131273A CN 102330174 A CN102330174 A CN 102330174A
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China
Prior art keywords
melt
temperature
modified
esterification
spinning
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CN201110131273A
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Chinese (zh)
Inventor
沈家康
钮真荣
王国柱
赵广兵
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Jiangsu Yingxiang Chemical Fiber Co Ltd
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Jiangsu Yingxiang Chemical Fiber Co Ltd
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Priority to CN201110131273A priority Critical patent/CN102330174A/en
Publication of CN102330174A publication Critical patent/CN102330174A/en
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Abstract

The invention relates to a method for preparing an isophthalic acid modified polyester fully drawn yarn, which comprises the preparation step of condensing and polymerizing modified polyester melt and the preparation process of directly spinning the polyester fully drawn yarn (FDY). In the preparation process of condensing and polymerizing modified polyester melt, the modified co-polyester melt is prepared from pure terephthalic acid (PTA), isophthalic acid and ethylene glycol (EG) monomers as raw materials. The polyester melt is directly transported through a melt, extruded through metering and spinning assemblies, cooled by blowing air, oiled and wound by a channel, a first yarn guide roller and a second yarn guide roller to prepare the modified polyester fully drawn yarn. The modified polyester FDY fiber prepared by using the method has the advantages of stable contraction rate, uniformity in dyeing and excellent spinning performance.

Description

The isophthalate modified terylene fully drawn yarn
Technical field
The present invention relates to a kind of synthetic fiber, particularly, the present invention relates to a kind of modified dacron full-drawn yarn.
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 increasingly high 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 2,700 ten thousand tons of developing into for the year ends 2010 of 516.5 ten thousand tons 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 M-phthalic 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 M-phthalic 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.
It is generally acknowledged; As long as can directly carry out the precursor of stretcher strain processing; And do not have big influence to the character of precursor standing time before the processing; And in process the repiece difficulty can not appear, can not cause the finished silk lousiness, intensity is on the low side, the uneven undrawn yarn that dyes, and all can be referred to as pre-oriented yarn or partially oriented yarn (POY).POY technology has following characteristics:
(1) spinning is high around volume speed, and the sub-hardness of winding reel is high, weight is big, be convenient to transportation;
(2) spinning process is stable, suitable DTY processing, and the pre-oriented yarn shelf stability is good.
The present inventor is devoted to the characteristics of nano material aspect the function specificity were incorporated in synthesizing of polyster fibre, and combines pre-oriented yarn production technology of the prior art to accomplish the present invention.
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 nano modifier to traditional polyester fiber.
To achieve these goals, the invention provides following technical scheme:
A kind of preparation method of isophthalate modified terylene fully drawn yarn comprises the preparation process of polycondensation modified poly ester melt and the preparation technology of direct spinning terylene drafted fibre (FDY); In the preparation technology of polycondensation modified poly ester melt, adopting terephthalic acid (TPA) (PTA), M-phthalic acid, ethylene glycol (EG) monomer is that feedstock production obtains the modified copolyester melt; Above-mentioned polyester fondant is directly through melt Conveying, through metering, filament spinning component extrude, dry cooling, oil, path, first godet roller, second godet roller, coiling make the modified dacron drafted fibre; The preparation technology who it is characterized in that described modified poly ester melt comprises the steps:
At first; On continuous polycondensation equipment; Mol ratio according to terephthalic acid (TPA) (PTA), M-phthalic acid (IPA), ethylene glycol (EG) monomer is 1: the ratio of 0.05-0.075: 1.15-1.20 is measured continuously and stably separately and is joined in the slurry still and pulls an oar; Add antimony acetate, antimony glycol in the making beating still, wherein the mol ratio of the addition of antimony acetate and terephthalic acid (TPA) is 0.05-0.08%, and the addition of antimony glycol 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 95.0%-98.5%, the viscosity of melt is controlled to be 0.64-0.67; Carboxylate is pumped into polycondensation workshop section, under temperature 278-281 ℃ condition, makes the modified poly ester melt by polycondensating process, wherein said stabilizing agent is a triethyl phosphate, and the mol ratio of its addition and terephthalic acid (TPA) is 0.28-0.45%.
Wherein, the temperature of esterification-I agitated reactor is controlled at 262-263 ℃, and control still internal pressure is 0.38-0.45MPa.
Wherein, the temperature of esterification-II agitated reactor is controlled at 268-271 ℃, and control still internal pressure is 0.15-0.27MPa.
Wherein, the temperature of prepolymerization reaction still is controlled at 278-279 ℃, and control still internal pressure is 3.2-5.8KPa.
Wherein, the temperature that final minification gathers agitated reactor is controlled at 280-281 ℃, and control still internal pressure is 50-75Pa.
Wherein, the preparation technology of modified dacron full-drawn yarn (FDY) comprises the steps: above-mentioned modified copolyester melt, through melt Conveying pipeline equipment; Be transported on the melt directly spinning filament production equipment, through measuring pump, filament spinning component, blowing cool off, oil, path, first godet roller, second godet roller, winding process, the temperature of wherein controlling the melt Conveying pipeline is 272-276 ℃; Spinning body temperature is 285-289 ℃; Lateral blowing wind speed 0.35-0.75 meter per second, the first godet roller speed 900-1300m/min, temperature 70-87 ℃; The second hot-rolling speed 3200-4200m/min, temperature 89-105 ℃.
Wherein, the oil content of modified dacron drafted fibre is 0.68-1.05%.
Wherein, draw ratio is 3.0-3.5 in the FDY technology.
The modified poly ester melt of the present invention specification that is particularly suitable for being used for weaving is the FDY silk of 68D/48F.
The invention has the beneficial effects as follows, a kind of technology of continuous modification dacron polyester melt full-drawn yarn is provided.And adopt the modified dacron FDY filament contraction rate of the present invention's preparation stable, even dyeing, spinning properties is excellent.
The specific embodiment
Embodiment 1
The preparation technology of modified poly ester:
At first; On continuous polycondensation equipment; According to the mol ratio of terephthalic acid (TPA) (PTA), M-phthalic acid (IPA), ethylene glycol (EG) monomer is that 1: 0.06: 1.18 ratio is measured continuously and stably separately and joined in the slurry still and pulls an oar; Add antimony acetate, antimony glycol in the making beating still, wherein the mol ratio of the addition of antimony acetate and terephthalic acid (TPA) is 0.06%, and the addition of antimony glycol and the mol ratio of phthalic acid are 0.04%;
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 278-281 ℃ condition, makes the modified poly ester melt by polycondensating process, wherein said stabilizing agent is a triethyl phosphate, and the mol ratio of its addition and terephthalic acid (TPA) is 0.36%.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/℃ 262 267 278 280
Reaction pressure 0.45MPa 0.23MPa 6KPa 85Pa
The time of staying/min 120 120 90 180
The preparation technology of modified dacron full-drawn yarn (FDY):
With above-mentioned modified poly ester melt,, be transported on the melt directly spinning filament production equipment through melt Conveying pipeline equipment; Through measuring pump, filament spinning component, blowing cool off, oil, path, first godet roller, second godet roller, winding process, the temperature of wherein controlling the melt Conveying pipeline is 275 ℃, spinning body temperature is 287 ℃; Lateral blowing wind speed 0.45m/s, the first godet roller speed 1000m/min, 79 ℃ of temperature; The second hot-rolling speed 3500m/min, 95 ℃ of temperature.Being fit to the preparation specification through the adjustment filament spinning component is the FDY silk of 68D/48F.

Claims (7)

1. the preparation method of an isophthalate modified terylene fully drawn yarn comprises the preparation process of polycondensation modified poly ester melt and the preparation technology of direct spinning terylene drafted fibre (FDY); In the preparation technology of polycondensation modified poly ester melt, adopting terephthalic acid (TPA) (PTA), M-phthalic acid, ethylene glycol (EG) monomer is that feedstock production obtains the modified copolyester melt; Above-mentioned polyester fondant is directly through melt Conveying, through metering, filament spinning component extrude, dry cooling, oil, path, first godet roller, second godet roller, coiling make the modified dacron drafted fibre; The preparation technology who it is characterized in that described modified poly ester melt comprises the steps:
At first; On continuous polycondensation equipment; Mol ratio according to terephthalic acid (TPA) (PTA), M-phthalic acid (IPA), ethylene glycol (EG) monomer is 1: the ratio of 0.05-0.075: 1.15-1.20 is measured continuously and stably separately and is joined in the slurry still and pulls an oar; Add antimony acetate, antimony glycol in the making beating still, wherein the mol ratio of the addition of antimony acetate and terephthalic acid (TPA) is 0.05-0.08%, and the addition of antimony glycol 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 95.0%-98.5%, the viscosity of melt is controlled to be 0.64-0.67; Carboxylate is pumped into polycondensation workshop section, under temperature 278-281 ℃ condition, makes the modified poly ester melt by polycondensating process, wherein said stabilizing agent is a triethyl phosphate, and the mol ratio of its addition and terephthalic acid (TPA) is 0.28-0.45%.
2. the described preparation method of claim 1 is characterized in that the temperature of esterification-I agitated reactor is controlled at 262-263 ℃, and control still internal pressure is 0.38-0.45MPa.
3. the described preparation method of claim 1 is characterized in that the temperature of esterification-II agitated reactor is controlled at 268-271 ℃, and control still internal pressure is 0.15-0.27MPa.
4. the described preparation method of claim 1 is characterized in that the temperature of prepolymerization reaction still is controlled at 278-279 ℃, and control still internal pressure is 3.2-5.8KPa.
5. the described preparation method of claim 1 is characterized in that the temperature that final minification gathers agitated reactor is controlled at 280-281 ℃, and control still internal pressure is 50-75Pa.
6. the described preparation method of claim 1 is characterized in that the preparation technology of modified dacron full-drawn yarn (FDY) comprises the steps: above-mentioned modified copolyester melt, through melt Conveying pipeline equipment; Be transported on the melt directly spinning filament production equipment, through measuring pump, filament spinning component, blowing cool off, oil, path, first godet roller, second godet roller, winding process, the temperature of wherein controlling the melt Conveying pipeline is 281-284 ℃; Spinning body temperature is 285-289 ℃; Lateral blowing wind speed 0.35-0.75 meter per second, the first godet roller speed 1600-1800m/min, temperature 70-87 ℃; The second hot-rolling speed 4000-4600m/min, temperature 89-105 ℃.
7. the described preparation method of claim 1, the specification that it is characterized in that described modified dacron full-drawn yarn is 68D/48F.
CN201110131273A 2011-05-20 2011-05-20 Isophthalic acid modified polyester fully drawn yarn Pending CN102330174A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102926032A (en) * 2012-11-09 2013-02-13 张守运 High-intensity and high-elongation and easy-dyeing and abrasion-resistant dacron polyester and preparation method thereof
CN104674372A (en) * 2015-03-18 2015-06-03 苏州大学 Nanometer zirconium carbide-polyester fully-drawn yarn and preparation method thereof
CN110184700A (en) * 2019-06-21 2019-08-30 徐州斯尔克纤维科技股份有限公司 A kind of imitative cotton composite filament and its manufacturing method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000248425A (en) * 1999-02-25 2000-09-12 Toray Ind Inc Highly shrinkable polyester fiber and its production
JP2002020930A (en) * 2000-07-06 2002-01-23 Toray Ind Inc Polyester highly shrinkable fiber
CN101070642A (en) * 2007-05-22 2007-11-14 浙江化纤联合集团有限公司 Method for preparing polyester filament capable being dyed by continuous condensed direct-spinning cation dye
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000248425A (en) * 1999-02-25 2000-09-12 Toray Ind Inc Highly shrinkable polyester fiber and its production
JP2002020930A (en) * 2000-07-06 2002-01-23 Toray Ind Inc Polyester highly shrinkable fiber
CN101070642A (en) * 2007-05-22 2007-11-14 浙江化纤联合集团有限公司 Method for preparing polyester filament capable being dyed by continuous condensed direct-spinning cation dye
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102926032A (en) * 2012-11-09 2013-02-13 张守运 High-intensity and high-elongation and easy-dyeing and abrasion-resistant dacron polyester and preparation method thereof
CN104674372A (en) * 2015-03-18 2015-06-03 苏州大学 Nanometer zirconium carbide-polyester fully-drawn yarn and preparation method thereof
CN110184700A (en) * 2019-06-21 2019-08-30 徐州斯尔克纤维科技股份有限公司 A kind of imitative cotton composite filament and its manufacturing method

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