CN102330185A - 2,6-naphthalic acid modified terylene low-elasticity network fiber - Google Patents
2,6-naphthalic acid modified terylene low-elasticity network fiber Download PDFInfo
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Abstract
The invention relates to a 2,6-naphthalic acid modified terylene low-elasticity network fiber, which is obtained through 2,6-naphthalic acid modified terylene slice preparation and blended fully drawn yarn (FDY) process spinning step preparation. The method disclosed by the invention can be completed on the conventional spinning equipment, the tow evenness is uniform, the color and luster distribution is uniform, the textile is flat and neat, the characteristics of gloss and softness are realized, and the 2,6-naphthalic acid modified terylene low-elasticity network fiber can be widely applied to the field of garments and the field of decoration.
Description
Technical field
The present invention relates to a kind of synthetic fiber, particularly, the present invention relates to a kind of 2,6-naphthalene two acid modified terylene low stretch network fibres.
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.
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 low elastic interlaced 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 low elastic interlaced yarn 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 adding the 3rd monomer 2,6-naphthalene diacid 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 2,6-naphthalene two acid modified terylene low stretch network fibres, its by comprise 2, the preparation of 6-naphthalene two acid modified terylenes section and the step of blend FDY technology spinning prepare; It is characterized in that preparation technology described 2, the section of 6-naphthalene two acid modified terylenes comprises the steps:
At first; On continuous polycondensation equipment; With terephthalic acid (TPA) (PTA), 2,6-naphthalene diacid, ethylene glycol (EG) monomer; Mol ratio according to terephthalic acid (TPA) (PTA), 2,6-naphthalene diacid, ethylene glycol (EG) monomer is 1: the ratio of 0.05-0.15:1.35-1.50 is measured continuously and stably separately and is joined in the slurry still and pulls an oar; Add silico-tungstic acid, p-methyl benzenesulfonic acid in the making beating still, wherein the mol ratio of the addition of silico-tungstic acid and terephthalic acid (TPA) is 0.010-0.03%, and the addition of p-methyl benzenesulfonic acid and the mol ratio of phthalic acid are 0.03-0.08%;
Then above-mentioned slurry continous-stable is delivered in esterification-I, the esterification-II agitated reactor, adds stabilizing agent in esterification-II agitated reactor simultaneously continuously, control esterification yield 96.5%-99.0%, 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 through precondensation and final minification polymerizing technology again, wherein said stabilizing agent is a trimethyl phosphate, and the mol ratio of its addition and terephthalic acid (TPA) is 0.25-0.48%; With the modified poly ester melt through Cast Strip, pelletizing and drying obtain 2, the section of 6-naphthalene two acid modified terylenes.
Wherein, the preparation were established of POY is: polyester fondant → melt Conveying → spinning manifold → measuring pump → assembly → ring blowing cooling → boundling oils → path → coiling; 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: the original silk rack → fracture of wire device → hot case → coldplate of first roller → first → false twister → second roller → Network device → auxiliary roller → second hot case → the 3rd roller → oiling device → fracture of wire monitor → coiling; Main technological parameter is: first heater temperature is 175 ℃, and second heater temperature is 158 ℃, and draw ratio is 1.407, the rate that oils 2.25-2.75%.
Wherein, 2, the section of 6-naphthalene two acid modified terylenes is pressed mass ratio 25-30:70-75 with terylene chips.
Wherein, the temperature of esterification-I agitated reactor is controlled at 261-263 ℃, and control still internal pressure is 0.32-0.45 MPa.
Wherein, the temperature of esterification-II agitated reactor is controlled at 265-268 ℃, and control still internal pressure is 0.12-0.21MPa.
Wherein, the temperature of prepolymerization reaction still is controlled at 282-285 ℃, and control still internal pressure is 2.5-9.8 KPa.
Wherein, the temperature that final minification gathers agitated reactor is controlled at 286-288 ℃, and control still internal pressure is 62-95 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 is adopting stable technology to make, through reducing the fluctuation of various parameters in the spinning process, suppressed 2, the destabilizing factor in the 6-naphthalene two acid modified terylene low stretch network fibre production processes.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; With terephthalic acid (TPA) (PTA), 2,6-naphthalene diacid, ethylene glycol (EG) monomer; Mol ratio according to terephthalic acid (TPA) (PTA), 2,6-naphthalene diacid, ethylene glycol (EG) monomer is 1: the ratio of 0.08:1.42 is measured continuously and stably separately and is joined in the slurry still and pulls an oar; Add silico-tungstic acid, p-methyl benzenesulfonic acid in the making beating still, wherein the mol ratio of the addition of silico-tungstic acid and terephthalic acid (TPA) is 0.02%, and the addition of p-methyl benzenesulfonic acid and the mol ratio of phthalic acid are 0.06%;
Then above-mentioned slurry continous-stable is delivered in esterification-I, the esterification-II agitated reactor, adds stabilizing agent in esterification-II agitated reactor simultaneously continuously, control esterification yield 98.5%, the viscosity of melt is controlled to be 0.65; Carboxylate is pumped into polycondensation workshop section, under temperature 282-288 ℃ condition, makes the modified poly ester melt through precondensation and final minification polymerizing technology again, wherein said stabilizing agent is a trimethyl phosphate, and the mol ratio of its addition and terephthalic acid (TPA) is 0.37%; With the modified poly ester melt through Cast Strip, pelletizing and drying obtain 2, the section of 6-naphthalene two acid modified terylenes.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 | 266 | 282 | 288 |
| Reaction pressure | 0.43 MPa | 0.18 MPa | 7.9 KPa | 78 Pa |
The preparation were established of POY is: polyester fondant → melt Conveying → spinning manifold → measuring pump → assembly → ring blowing cooling → boundling oils → path → coiling; Main technological parameter is: 287 ℃ of spin manifold temperatures, 282 ℃ of pipe temperatures, ring blow pressure 630 Pa, 30 ℃ of temperature, the rate of oiling are 0.56 %;
The DTY production process route is: the original silk rack → fracture of wire device → hot case → coldplate of first roller → first → false twister → second roller → Network device → auxiliary roller → second hot case → the 3rd roller → oiling device → fracture of wire monitor → coiling; Main technological parameter is: first heater temperature is 175 ℃, and second heater temperature is 158 ℃, and draw ratio is 1.407, the rate that oils 2.25-2.75%.
Claims (5)
1. one kind 2,6-naphthalene two acid modified terylene low stretch network fibres, its by comprise 2, the preparation of 6-naphthalene two acid modified terylenes section and the step of blend FDY technology spinning prepare; It is characterized in that preparation technology described 2, the section of 6-naphthalene two acid modified terylenes comprises the steps:
At first; On continuous polycondensation equipment; With terephthalic acid (TPA) (PTA), 2,6-naphthalene diacid, ethylene glycol (EG) monomer; Mol ratio according to terephthalic acid (TPA) (PTA), 2,6-naphthalene diacid, ethylene glycol (EG) monomer is 1: the ratio of 0.05-0.15:1.35-1.50 is measured continuously and stably separately and is joined in the slurry still and pulls an oar; Add silico-tungstic acid, p-methyl benzenesulfonic acid in the making beating still, wherein the mol ratio of the addition of silico-tungstic acid and terephthalic acid (TPA) is 0.010-0.03%, and the addition of p-methyl benzenesulfonic acid and the mol ratio of phthalic acid are 0.03-0.08%;
Then, above-mentioned slurry continous-stable is delivered in esterification-I, the esterification-II agitated reactor, adds stabilizing agent in esterification-II agitated reactor simultaneously continuously, control esterification yield 96.5%-99.0%, 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 through precondensation and final minification polymerizing technology again, wherein said stabilizing agent is a trimethyl phosphate, and the mol ratio of its addition and terephthalic acid (TPA) is 0.25-0.48%; With the modified poly ester melt through Cast Strip, pelletizing and drying obtain 2, the section of 6-naphthalene two acid modified terylenes.
2. the described low stretch network fibre of claim 1 is characterized in that the preparation were established of POY is: polyester fondant → melt Conveying → spinning manifold → measuring pump → assembly → ring blowing cooling → boundling oils → path → coiling; 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 low stretch network fibre of claim 1 is characterized in that the DTY production process route is: the original silk rack → fracture of wire device → hot case → coldplate of first roller → first → false twister → second roller → Network device → auxiliary roller → second hot case → the 3rd roller → oiling device → fracture of wire monitor → coiling; Main technological parameter is: first heater temperature is 175 ℃, and second heater temperature is 158 ℃, and draw ratio is 1.407, the rate that oils 2.25-2.75%.
4. the described low stretch network 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.
5. the described low stretch network fibre of claim 1 is characterized in that the fibre section is circle, trilobal, triangle, cross, king's font, hollow shape or five leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110164705A CN102330185A (en) | 2011-06-20 | 2011-06-20 | 2,6-naphthalic acid modified terylene low-elasticity network fiber |
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| CN201110164705A CN102330185A (en) | 2011-06-20 | 2011-06-20 | 2,6-naphthalic acid modified terylene low-elasticity network fiber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133108A (en) * | 2015-08-04 | 2015-12-09 | 桐昆集团股份有限公司 | Coral velvet fiber production method |
| CN111218741A (en) * | 2019-12-23 | 2020-06-02 | 苏州君辉纺织有限公司 | Preparation process of DTY (draw textured yarn) plied yarn with special luster |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1113075C (en) * | 1995-01-20 | 2003-07-02 | 纳幕尔杜邦公司 | Production of poly ethylene terephthalate |
| CN101134820A (en) * | 2006-09-01 | 2008-03-05 | 远东纺织股份有限公司 | Thermal contracting polyester film and method for preparing same |
| 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
- 2011-06-20 CN CN201110164705A patent/CN102330185A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1113075C (en) * | 1995-01-20 | 2003-07-02 | 纳幕尔杜邦公司 | Production of poly ethylene terephthalate |
| CN101134820A (en) * | 2006-09-01 | 2008-03-05 | 远东纺织股份有限公司 | Thermal contracting polyester film and method for preparing same |
| 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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133108A (en) * | 2015-08-04 | 2015-12-09 | 桐昆集团股份有限公司 | Coral velvet fiber production method |
| CN111218741A (en) * | 2019-12-23 | 2020-06-02 | 苏州君辉纺织有限公司 | Preparation process of DTY (draw textured yarn) plied yarn with special luster |
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Application publication date: 20120125 |