CN102251314A - Nano silver oxide modified polyester pre-orientated yarn - Google Patents
Nano silver oxide modified polyester pre-orientated yarn Download PDFInfo
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- CN102251314A CN102251314A CN2011101630160A CN201110163016A CN102251314A CN 102251314 A CN102251314 A CN 102251314A CN 2011101630160 A CN2011101630160 A CN 2011101630160A CN 201110163016 A CN201110163016 A CN 201110163016A CN 102251314 A CN102251314 A CN 102251314A
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Abstract
The invention relates to a method for preparing a nano silver oxide modified polyester pre-orientated yarn. The method comprises the steps of modified polyester melt preparation and direct spinning POY (Polyester Pre-orientated Yarn) preparation. According to the method, PTA (Pure Terephthalic Acid) and an EG (Ethylene Glycol) monomer are adopted as raw materials and a modified polyester melt is prepared and obtained by adding nano modified agents into the raw materials; and the nano silver oxide modified polyester pre-orientated yarn is obtained by directly conveying the modified polyester melt through the melt, measuring, extruding through spinning components, air-blast cooling, oiling a channel and winding. The nano silver oxide modified polyester pre-orientated yarn prepared by using the method provided by the invention has certain bactericidal performance and the antibacterial efficiency of over 85 percents.
Description
Technical field
The present invention relates to a kind of synthetic fiber, particularly, the present invention relates to a kind of modified dacron pre-oriented 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 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 synthetic fiber kind of output maximum 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 industry application, 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.
Because " small-size effect ", " interfacial effect ", " quantum size effect " and " macro quanta tunnel effect " that nano material had make nano material show the specificity different with common material at aspects such as structure, photoelectricity, magnetic and chemical property.
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 pre-oriented yarn or partially oriented yarn (POY).POY technology has following characteristics:
(1) spinning is around volume speed height, and the sub-hardness height of winding reel, weight be 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 has finished the present invention in conjunction with pre-oriented yarn production technology of the prior art.
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 by nano modifier to traditional polyester fiber.
To achieve these goals, the invention provides following technical scheme:
A kind of preparation method of nano phase ag_2 o modified dacron pre-oriented yarn comprises the preparation of modified poly ester melt and the preparation of direct spinning terylene pre-oriented fiber (POY); Adopting terephthalic acid (TPA) (PTA), ethylene glycol (EG) monomer in the preparation technology of modified poly ester melt is raw material, and be added with nano modifier and prepare the modified copolyester melt, above-mentioned polyester fondant is directly by melt Conveying, through metering, filament spinning component extrude, dry cooling, oil, path, coiling make nano phase ag_2 o modified dacron pre-oriented yarn; The preparation technology who it is characterized in that described nano phase ag_2 o modified copolyester melt comprises the steps:
At first on continuous polycondensation equipment, adopt terephthalic acid (TPA) (PTA), ethylene glycol (EG) monomer, mol ratio 1 according to PTA and EG: 1.20-1: 1.30 ratio is measured continuously and stably separately and is joined in the slurry still and pulls an oar, add nano phase ag_2 o modifier in the making beating still, nano silicon, TITANIUM DIOXIDE DELUSTRANT, wherein the mol ratio of the addition of nano phase ag_2 o and terephthalic acid (TPA) is 0.90-2.25%, the addition of nano silicon and the mol ratio of terephthalic acid (TPA) are 0.32-0.75%, and the addition of TITANIUM DIOXIDE DELUSTRANT and the mol ratio of phthalic acid are 0.35-0.50%;
Then above-mentioned slurry continous-stable is delivered in esterification-I, the esterification-II reactor, adds stabilizing agent in esterification-II reactor simultaneously continuously, control esterification yield 96.0%-99.0%, the viscosity of melt is controlled to be 0.65-0.67; Carboxylate is pumped into polycondensation workshop section, makes the modified copolyester melt by polycondensating process under temperature 268-272 ℃ condition, wherein said stabilizing agent is a phosphorous acid, and the mol ratio of its addition and terephthalic acid (TPA) is 0.25-0.42%.
Wherein, the average grain diameter of described nano phase ag_2 o is 20 nm-100 nm, is preferably 20 nm-50 nm.
Wherein, the average grain diameter of described nano silicon is 20 nm-100 nm, is preferably 20 nm-50 nm.
Wherein, described TITANIUM DIOXIDE DELUSTRANT is the rutile phase, and its average grain diameter is 200 nm-350 nm.
Wherein, the preparation technology of modified dacron pre-oriented yarn (POY) comprises the steps: above-mentioned modified copolyester melt, by 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, winding process, the temperature of wherein controlling the melt Conveying pipeline is 268-275 ℃, and spinning body temperature is 283-287 ℃, lateral blowing wind speed 0.35-0.70 meter per second.
Wherein, the oil content of modified dacron pre-oriented yarn is 0.32-0.48 %.
Wherein, the modified dacron pre-oriented yarn is a full-dull.
Wherein, modified poly ester melt spy of the present invention share the POY silk that the specification of weaving is 68D/24F.
The invention has the beneficial effects as follows, a kind of technology of continuous modification dacron polyester melt pre-oriented yarn is provided.And in the modified dacron POY silk of the present invention, be added with the silver oxide and the titanium dioxide of Nano grade, what prepare has certain bactericidal property, and antibacterial efficient is more than 85%; And the POY silk degree of crystallinity for preparing is between 0.5-1.8%; Elongation at break is 90-140 %.Structure integraty parameter is between 0.35-0.80, and boiling water shrinkage is between 45%-65%.
The specific embodiment
Further explanation and description of the technical solution of the present invention are carried out below in conjunction with specific embodiments.
Embodiment 1
The preparation technology of nano phase ag_2 o modified poly ester:
At first, on continuous polycondensation equipment, adopt terephthalic acid (TPA) (PTA), ethylene glycol (EG) monomer, measure continuously and stably separately and join in the slurry still according to 1: 1.25 the ratio of mol ratio of PTA and EG and pull an oar, add nano phase ag_2 o modifier, nano silicon, TITANIUM DIOXIDE DELUSTRANT in the making beating still, wherein the mol ratio of the addition of nano phase ag_2 o and terephthalic acid (TPA) is 1.55%, the addition of nano silicon and the mol ratio of terephthalic acid (TPA) are 0.55%, and the addition of TITANIUM DIOXIDE DELUSTRANT and the mol ratio of phthalic acid are 0.45%;
Then, above-mentioned slurry continous-stable is delivered in esterification-I, the esterification-II reactor, adds stabilizing agent in esterification-II reactor, control esterification yield 98%, viscosity is controlled at 0.65; Carboxylate is pumped into polycondensation workshop section, and process precondensation and final minification are poly-to make the modified poly ester melt, and wherein said stabilizing agent is a phosphorous acid, and the mol ratio of its addition and terephthalic acid (TPA) is 0.32%.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 is poly- |
| Reaction temperature/℃ | 262 | 264 | 268 | 271 |
| Reaction pressure | 0.42 MPa | 0.32 MPa | 8 KPa | 75 Pa |
| The time of staying/min | 120 | 105 | 90 | 180 |
The preparation technology of modified dacron pre-oriented yarn (POY):
With above-mentioned modified poly ester melt, by 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, winding process, the temperature of wherein controlling the melt Conveying pipeline is 272 ℃, spinning body temperature is 285 ℃, lateral blowing wind speed 0.35 m/s, and the preparation specification is the POY silk of 68D/24F.What prepare has certain bactericidal property, and antibacterial efficient is more than 85%.
Claims (5)
1. the preparation method of a nano phase ag_2 o modified dacron pre-oriented yarn comprises the preparation of modified poly ester melt and the preparation of direct spinning terylene pre-oriented fiber (POY); Adopting terephthalic acid (TPA) (PTA), ethylene glycol (EG) monomer in the preparation technology of modified poly ester melt is raw material, and be added with nano modifier and prepare the modified copolyester melt, above-mentioned polyester fondant is directly by melt Conveying, through metering, filament spinning component extrude, dry cooling, oil, path, coiling make nano phase ag_2 o modified dacron pre-oriented yarn; The preparation technology who it is characterized in that described nano phase ag_2 o modified copolyester melt comprises the steps:
At first, on continuous polycondensation equipment, adopt terephthalic acid (TPA) (PTA), ethylene glycol (EG) monomer, mol ratio 1 according to PTA and EG: 1.20-1: 1.30 ratio is measured continuously and stably separately and is joined in the slurry still and pulls an oar, add nano phase ag_2 o modifier in the making beating still, nano silicon, TITANIUM DIOXIDE DELUSTRANT, wherein the mol ratio of the addition of nano phase ag_2 o and terephthalic acid (TPA) is 0.90-2.25%, the addition of nano silicon and the mol ratio of terephthalic acid (TPA) are 0.32-0.75%, and the addition of TITANIUM DIOXIDE DELUSTRANT and the mol ratio of phthalic acid are 0.35-0.50%;
Then, above-mentioned slurry continous-stable is delivered in esterification-I, the esterification-II reactor, adds stabilizing agent in esterification-II reactor simultaneously continuously, control esterification yield 96.0%-99.0%, the viscosity of melt is controlled to be 0.65-0.67; Carboxylate is pumped into polycondensation workshop section, makes the modified copolyester melt by polycondensating process under temperature 268-272 ℃ condition, wherein said stabilizing agent is a phosphorous acid, and the mol ratio of its addition and terephthalic acid (TPA) is 0.25-0.42%.
2. the described preparation method of claim 1, the preparation technology who it is characterized in that modified dacron pre-oriented yarn (POY) comprises the steps: above-mentioned modified copolyester melt, by 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, winding process, the temperature of wherein controlling the melt Conveying pipeline is 268-275 ℃, and spinning body temperature is 283-287 ℃, lateral blowing wind speed 0.35-0.70 meter per second.
3. the described preparation method of claim 1, the average grain diameter that it is characterized in that described nano phase ag_2 o is 20 nm-100 nm, is preferably 20 nm-50 nm.
4. the described preparation method of claim 1, the average grain diameter that it is characterized in that described nano silicon is 20 nm-100 nm, is preferably 20 nm-50 nm.
5. the described preparation method of claim 1, the specification that it is characterized in that described modified dacron pre-oriented yarn is 68D/24F.
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| CN2011101630160A CN102251314A (en) | 2011-06-17 | 2011-06-17 | Nano silver oxide modified polyester pre-orientated yarn |
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| CN2011101630160A CN102251314A (en) | 2011-06-17 | 2011-06-17 | Nano silver oxide modified polyester pre-orientated yarn |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103570923A (en) * | 2013-10-14 | 2014-02-12 | 嘉兴学院 | Preparation method of antibacterial polyester material |
| CN113265717A (en) * | 2021-05-27 | 2021-08-17 | 浙江理工大学桐乡研究院有限公司 | Method for manufacturing antibacterial polyester fiber |
| CN113622188A (en) * | 2021-08-12 | 2021-11-09 | 杭州纵纬针纺有限公司 | Deodorizing knitted fabric and manufacturing method thereof |
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| CN101671857A (en) * | 2009-09-17 | 2010-03-17 | 吴江鹰翔万信化纤有限公司 | Anti-bacterial poly terephthalic acid 1, 2-propylene glycol ester fiber |
| 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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- 2011-06-17 CN CN2011101630160A patent/CN102251314A/en active Pending
Patent Citations (3)
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| CN101671862A (en) * | 2009-09-17 | 2010-03-17 | 吴江鹰翔万信化纤有限公司 | Anti-ultraviolet radiation degradable fiber |
| CN101671857A (en) * | 2009-09-17 | 2010-03-17 | 吴江鹰翔万信化纤有限公司 | Anti-bacterial poly terephthalic acid 1, 2-propylene glycol ester fiber |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103570923A (en) * | 2013-10-14 | 2014-02-12 | 嘉兴学院 | Preparation method of antibacterial polyester material |
| CN103570923B (en) * | 2013-10-14 | 2015-10-28 | 嘉兴学院 | The preparation method of antibacterial polyester material |
| CN113265717A (en) * | 2021-05-27 | 2021-08-17 | 浙江理工大学桐乡研究院有限公司 | Method for manufacturing antibacterial polyester fiber |
| CN113622188A (en) * | 2021-08-12 | 2021-11-09 | 杭州纵纬针纺有限公司 | Deodorizing knitted fabric and manufacturing method thereof |
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Application publication date: 20111123 |