CN102345182A - Preparation method of succinic acid modified terylene low elastic network fiber - Google Patents
Preparation method of succinic acid modified terylene low elastic network fiber Download PDFInfo
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- CN102345182A CN102345182A CN2011101675176A CN201110167517A CN102345182A CN 102345182 A CN102345182 A CN 102345182A CN 2011101675176 A CN2011101675176 A CN 2011101675176A CN 201110167517 A CN201110167517 A CN 201110167517A CN 102345182 A CN102345182 A CN 102345182A
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Abstract
The invention relates to a preparation method of a succinic acid modified terylene low elastic network fiber. The method comprises steps of preparation of polycondensation modified polyester melt and POY-DTY (Polyester Pre-Oriented Yarn-Draw Textured Yarn) circular blowing cooling technology. The polycondensation modified polyester melt preparation technology employs raw materials of terephthalic acid (PTA), succinic acid and ethylene glycol (EG) monomer to prepare the modified polyester melt, which is directly treated with melt conveying and the POY-DTY circular blowing cooling technology to obtain the succinic acid modified terylene low elastic network fiber. Textured filament yarn prepared by the method of the invention has good uniformity, degree of dyeing, fabric appearance and handle.
Description
Technical field
The present invention relates to a kind of synthetic fiber, particularly, the present invention relates to a kind of preparation method of modified dacron low stretch network 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.
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 the repiece difficulty can not appear in process; 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 low stretch network fibre 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 low stretch network fibre shelf stability is good.
The DTY silk is the abbreviation of English Draw Textured Yarn, textured filament by name.The method of deformation processing has much at present, develops also very fast.Wherein main processing method has: false twisting method, air-texturing method and false twisting+air-texturing method.Wherein false twisting method is the main deformation method of terylene long fiber processing, and the terylene distortion has 90% to obtain through false twisting method processing and preparing.The DTY silk has following characteristics: bulkiness is high, and identical weight has bigger volume; Heat resistance is good; Hygroscopicity is higher and faster; Good air permeability; Better gloss and outward appearance are arranged
The present inventor is devoted to the characteristics of nano material aspect the function specificity were incorporated in synthesizing of polyster fibre, and combines POY-DTY 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 succinic acid modified dacron low stretch network fibre, its step by preparation process that comprises polycondensation modified poly ester melt and POY-DTY ring blowing process for cooling prepares; In the preparation technology of polycondensation modified poly ester melt, adopt terephthalic acid (TPA) (PTA) ,] one-acid, ethylene glycol (EG) monomer is raw material; Prepare the modified copolyester melt; Above-mentioned polyester fondant makes succinic acid modified dacron low stretch network fibre directly through melt Conveying through POY-DTY ring blowing process for cooling; The preparation technology who it is characterized in that described succinic acid modified copolyester melt comprises the steps: at first; On continuous polycondensation equipment; According to the mol ratio of terephthalic acid (TPA) (PTA), succinic acid, ethylene glycol (EG) monomer is that the ratio of 1:0.05-0.10:1.35-1.50 is measured continuously and stably separately and 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 antimony 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 one 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 triethyl phosphate, and the mol ratio of its addition and terephthalic acid (TPA) is 0.25-0.45%.
Wherein, the temperature of esterification one I agitated reactor is controlled at 268-271.C, control still internal pressure is 0.32-0.48 MPa.
The temperature of wherein, esterification-II agitated reactor is controlled at 271-273.C, control still internal pressure is 0.15-0.25 MPa.
Wherein, the temperature of prepolymerization reaction still is controlled at 283-285 ℃, and control still internal pressure is 2.5-7.5KPa.
Wherein, the final minification temperature of gathering agitated reactor is controlled at 285-287.C, control still internal pressure is 62-95 Pa.
Wherein, the preparation were established of POY is: polyester fondant one melt Conveying one spinning manifold one measuring pump one assembly one ring blows
Air cooling one a boundling path one coiling that oils; Main technological parameter is: spin manifold temperature 285-289 ℃, pipe temperature 281-283 ℃, ring blow pressure 550-750 Pa, temperature 25-32 ℃, the rate of oiling are 0.45-0.75%;
Wherein, the DTY production process route is: original silk rack one fracture of wire device one first roller one first hot case one coldplate one false twister
One second roller, one Network device, one auxiliary roller one second hot case 1 the 3rd roller one oiling device one fracture of wire monitor one is reeled; Main technological parameter is: first heater temperature is 175 ℃, and second heater temperature is 156.C, draw ratio is 1.417, the rate that oils 2.25-2.70%.
Wherein, the spinneret orifice of filament spinning component is conventional spinneret orifice, and the low stretch network fibre for preparing is a hollow section.
The invention has the beneficial effects as follows, a kind of preparation method of continuous modification dacron polyester melt low stretch network fibre is provided.Adopt
The textured filament uniformity, dye uptake, appearance of fabrics and the feel that prepare with method of the present invention are good.
The specific embodiment
To combine concrete embodiment that technical scheme of the present invention is done further to explain and explanation below.
Embodiment 1
The preparation technology of succinic acid modified poly ester:
A kind of preparation method of succinic acid modified dacron low stretch network fibre, the preparation process that comprises polycondensation modified poly ester melt with
POY-DTY ring blowing process for cooling; In the preparation technology of polycondensation modified poly ester melt, adopt terephthalic acid (TPA) (PTA), fourth two
Acid, ethylene glycol (EG) monomer are raw material, prepare the modified copolyester melt, and above-mentioned polyester fondant directly passes through melt Conveying,
Make succinic acid modified dacron low stretch network fibre through POY-DTY ring blowing process for cooling; It is characterized in that described succinic acid
The preparation technology of modified copolyester melt comprises the steps:
At first, on continuous polycondensation equipment, according to the mole of terephthalic acid (TPA) (PTA), succinic acid (IPA), ethylene glycol (EG) monomer
Pull an oar in the slurry still than measuring continuously and stably separately and join for the ratio of 1:0.12:1.38; Add antimony acetate, sulfamic acid in the making beating still; Wherein the mol ratio of the addition of antimony 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 one 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, presses polycondensating process at temperature 283-287.Make the modified poly ester melt under the condition of C, 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 shown in table l.
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 | 286 |
| Reaction pressure | 0. 43 MPa | 0. 25 MPa | 5.8 KPa | 85 Pa |
| The time of staying/min | 120 | 120 | 90 | 180 |
The preparation were established of POY is: the one ring blowing cooling of polyester fondant one melt Conveying one spinning manifold one measuring pump one assembly
An one boundling path one coiling that oils; Main technological parameter is: 287 ℃ of spin manifold temperatures, 282 ℃ of pipe temperatures, ring blow
Wind pressure 630 Pa, temperature 30.C, the rate of oiling are 0.56%;
The DTY production process route is: original silk rack one fracture of wire device one first roller one first hot case one coldplate one false twister one second roller one Network device one auxiliary roller one second hot case 1 the 3rd roller one oiling device one fracture of wire monitor one is reeled; Main technological parameter is: first heater temperature is 175 ℃, and second heater temperature is 156 ℃, and draw ratio is 1.417, and rate 2.50% oils.
Claims (5)
1. the preparation method of a succinic acid modified dacron low stretch network fibre, its step by preparation process that comprises polycondensation modified poly ester melt and POY-DTY ring blowing process for cooling prepares; In the preparation technology of polycondensation modified poly ester melt, adopting terephthalic acid (TPA) (PTA), succinic acid, ethylene glycol (EG) monomer is raw material; Prepare the modified copolyester melt; Above-mentioned polyester fondant makes succinic acid modified dacron low elastic interlaced yarn directly through melt Conveying through POY-DTY ring blowing process for cooling; The preparation technology who it is characterized in that described succinic acid modified copolyester melt comprises the steps:
At first; On continuous polycondensation equipment; According to the mol ratio of terephthalic acid (TPA) (PTA), succinic acid, ethylene glycol (EG) monomer is that the ratio of 1:0.05-0.10:1.35-1.50 is measured continuously and stably separately and 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 antimony 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 one 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 triethyl phosphate, and the mol ratio of its addition and terephthalic acid (TPA) is 0.25-0.45%.
2. the described preparation method of claim 1 is characterized in that the preparation were established of described POY is: polyester fondant one melt Conveying one spinning manifold one measuring pump one assembly one ring blowing cooling one a boundling path one coiling that oils; Main technological parameter is: spin manifold temperature 285-289 ℃, pipe temperature 281-283 ℃, ring blow pressure 550-750 Pa, temperature 25-32 ℃, the rate of oiling are 0.45-0.75%.
3. the described preparation method of claim 1 is characterized in that the DTY production process route is: original silk rack one fracture of wire device one first roller one first hot case one coldplate one false twister one second roller one Network device one auxiliary roller one second hot case 1 the 3rd roller one oiling device one fracture of wire monitor one coiling; Main technological parameter is: first heater temperature is 175 ℃, and second heater temperature is 156 ℃, and draw ratio is 1.417, the rate that oils 2.25-2.70%.
4. the described preparation method of claim 1 is characterized in that the modified dacron low elastic interlaced yarn for preparing is half delustring.
5. the described preparation method of claim 1 is characterized in that the low elastic interlaced yarn for preparing is a hollow section.
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| CN2011101675176A CN102345182A (en) | 2011-06-21 | 2011-06-21 | Preparation method of succinic acid modified terylene low elastic network fiber |
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| CN2011101675176A CN102345182A (en) | 2011-06-21 | 2011-06-21 | Preparation method of succinic acid modified terylene low elastic network fiber |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864508A (en) * | 2012-09-04 | 2013-01-09 | 江苏长乐纤维科技有限公司 | Manufacturing method of melt direct spinning high-performance heterotypic polyester fiber |
| CN103215684A (en) * | 2013-04-24 | 2013-07-24 | 绍兴九洲化纤有限公司 | Preparation method of completely-biodegradable aliphatic copolyester draw-textured yarn |
| CN103215688A (en) * | 2013-04-24 | 2013-07-24 | 浙江理工大学 | Preparation method of completely-biodegradable aliphatic copolyester pre-oriented yarn |
Citations (3)
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| CN101525423A (en) * | 2008-03-04 | 2009-09-09 | 东丽纤维研究所（中国）有限公司 | High-contraction polyester and method for preparing same |
| CN101724924A (en) * | 2009-11-16 | 2010-06-09 | 江苏盛虹化纤有限公司 | Polyester drawn textured yarn and production process thereof |
| 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 |
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2011
- 2011-06-21 CN CN2011101675176A patent/CN102345182A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525423A (en) * | 2008-03-04 | 2009-09-09 | 东丽纤维研究所（中国）有限公司 | High-contraction polyester and method for preparing same |
| CN101724924A (en) * | 2009-11-16 | 2010-06-09 | 江苏盛虹化纤有限公司 | Polyester drawn textured yarn and production process thereof |
| 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864508A (en) * | 2012-09-04 | 2013-01-09 | 江苏长乐纤维科技有限公司 | Manufacturing method of melt direct spinning high-performance heterotypic polyester fiber |
| CN103215684A (en) * | 2013-04-24 | 2013-07-24 | 绍兴九洲化纤有限公司 | Preparation method of completely-biodegradable aliphatic copolyester draw-textured yarn |
| CN103215688A (en) * | 2013-04-24 | 2013-07-24 | 浙江理工大学 | Preparation method of completely-biodegradable aliphatic copolyester pre-oriented yarn |
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Application publication date: 20120208 |