CN103290507B - A kind of preparation method being polymerized micro-modification lustrous polyester fiber - Google Patents
A kind of preparation method being polymerized micro-modification lustrous polyester fiber Download PDFInfo
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- CN103290507B CN103290507B CN201310166662.1A CN201310166662A CN103290507B CN 103290507 B CN103290507 B CN 103290507B CN 201310166662 A CN201310166662 A CN 201310166662A CN 103290507 B CN103290507 B CN 103290507B
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Abstract
The invention discloses a kind of production method of chemical fibre, especially a kind of preparation method of lustrous polyester fiber; The object of this invention is to provide a kind of preparation method being polymerized micro-modification lustrous polyester fiber that a kind of gloss is beautiful, function admirable, crocking resistance are good; Make the fabric weaved have good feel, poisture-penetrability, gas permeability are excellent, and outward appearance is beautiful, have excellent gloss, can be used for scarf, nightwear, knitting wool, woollen sweater, need the fabric etc. of flash effect.
Description
Technical field
The present invention relates to a kind of production method of chemical fibre, especially a kind of preparation method of lustrous polyester fiber.
Background technology
Lustrous polyester fiber has the features such as intensity is high, bright color, and its fabric made is attractive in appearance, good permeability, has special visual effect, deeply welcomed by the people.At present, lustrous polyester fiber on market obtains beautiful gloss mainly through changing fibre section shape, as triangle, trilobal etc., wherein the fiber of triangular-section has the refractive power effect of similar prism, by the resultant effect of light splitting, reflection and interference, makes fiber and fabric thereof have gloss beautiful, strongly reflective, the feature that flash of light property is good, can be applicable to the fields such as stage dress ornament, Household ornament fabric and fashion material.But profiled filament easily forms stress raiser, fibre strength comparatively circular-section fibers is low, and crocking resistance is poor.
Summary of the invention
The object of the invention is to the deficiency in order to solve above-mentioned technology, and a kind of preparation method being polymerized micro-modification lustrous polyester fiber that a kind of gloss is beautiful, function admirable, crocking resistance are good is provided.
A kind of preparation method being polymerized micro-modification lustrous polyester fiber designed by the present invention, step is as follows successively:
The first step, the preparation of nano barium sulfate trace modified poly ester melt: by phthalic acid and ethylene glycol, be obtained by reacting polyester fondant through esterification, precondensation, final polymerization, described esterification, precondensation, final polymerization reaction are undertaken by state of the art; Interpolation time of nano barium sulfate is before slurry mixing or after esterification before precondensation; During esterification, temperature is 265 DEG C ~ 273 DEG C, and steam pressure is 1.9 ~ 2.5kg/ square centimeter, and precondensation temperature is 280 DEG C ~ 292 DEG C, and whole condensation temperature is 285.7 DEG C ~ 295 DEG C, and the polyester melt viscosity obtained is 0.606 ~ 0.690dl/g; The particle size range of nano barium sulfate is between 0.3 ~ 1 μm, and addition manner is nano barium sulfate glycolic suspension, and polymerization addition is 400 ~ 20000ppm;
Second step, the preparation of triangular-section polyester fiber: above-mentioned obtained polyester fondant is passed through melt Conveying pipeline after booster pump supercharging and melt cooler cooling, shunted by distributing valve and enter into each spinning manifold, and measured by measuring pump, polyester fondant in each spinning manifold is fed to after spinning pack filters and extrudes, described spinning pack comprises spinnerets, and spinnerets is Y shape spinnerets, then makes as-spun fibre through lateral blowing or ring quenching; Spinning condition controls as follows, and it is 280 DEG C ~ 295 DEG C that spinning body temperature controls, and filament spinning component pressure is 12MPa ~ 20MPa, and spinning temperature is 279 DEG C ~ 292 DEG C;
3rd step, the drawing-off of polyester filament, coiling and molding: as-spun fibre is entered winder winding winding forming with certain tension force after oiling device, traveller, pre-network, the first hot-rolling, the second heat roller device; Spinning silk winding speed is 3800m/min ~ 5000m/min, and it is 80 DEG C ~ 100 DEG C that the first heat roller temperature controls, and speed is 1890r/min ~ 2500r/min, and it is 110 DEG C ~ 150 DEG C that the second heat roller temperature controls, and speed is 3800r/min ~ 5000r/min.
Polyester filament described above can be FDY silk.
Present invention incorporates the method that two kinds are improved fiber gloss, one is add micro-nano barium sulfate in polyester reaction, and two is in spinning technique, adopt profile spinneret spinning; Nano barium sulfate has that inertia is large, hardness is low, brightness advantages of higher; In crystallizing polyester process, poly-vinegar strand is centered by these particles, to be adsorbed onto on particle and to make ordered arrangement and form nucleus, and the special light reflection of triangular-section fiber and refractiveness make fiber have good gloss and flash of light property, both effective combinations, not only can improve the beautiful degree of fiber gloss, improve the whiteness of fiber, effectively can also improve the degree of crystallinity of polyester fiber, improve the mechanical properties such as the impact strength of fiber, TENSILE STRENGTH, bending strength.It is beautiful that this fiber has gloss, and flash of light property is good, and the features such as be better than common triangular-section bright yarn, the degree of crystallinity of fiber is high, good mechanical performance are a kind of new type polyester fibers with high added value.
Beneficial effect of the present invention:
(1) the method production technology is simple, effectively can control the addition of nano barium sulfate.
(2) add micro-nano barium sulfate in the course of the polymerization process as nucleator, the degree of crystallinity of fiber improves, and mechanical property is improved obviously.
(3) triangular-section gives fiber good gloss effect, and nano barium sulfate makes the degree of crystallinity of fiber improve, and optimizes its mechanical property, and the whiteness of fiber also increases simultaneously.
Nano barium sulfate is a kind of novel polyester additives, it has the features such as good stability, acid and alkali-resistance, high density, high whiteness, refractive index is 1.64, with the refractive index 1.54 of polyester closely, add brightness and whiteness that nano barium sulfate can improve polyester fiber in the polyester, improve the optical property of triangle lustrous polyester fiber, nano barium sulfate as nucleator, can also improve the degree of crystallinity, TENSILE STRENGTH, crocking resistance etc. of fiber simultaneously.
The combination of these two kinds designs, make the fabric weaved have good feel, poisture-penetrability, gas permeability are excellent, and outward appearance is beautiful, have excellent gloss, can be used for scarf, nightwear, knitting wool, woollen sweater, need the fabric etc. of flash effect.
Accompanying drawing explanation
Fig. 1 is the process chart of the embodiment of the present invention 1 and embodiment 2.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1:
As shown in Figure 1, a kind of preparation method being polymerized micro-modification lustrous polyester fiber, step is as follows successively:
The first step, the preparation of nano barium sulfate trace modified poly ester melt: phthalic acid and ethylene glycol are entered slurry preparation 3 respectively by phthalic acid conveyance conduit 1 and an ethylene glycol conveyance conduit 2, under the effect of stirring motor 4, make slurry mix, nano barium sulfate and ethylene glycol enter nano barium sulfate suspension preparation tank 7 respectively by nano barium sulfate conveyance conduit 5, No. two ethylene glycol conveyance conduits 6 simultaneously; In slurry transferring process, mixed with slurry by nano barium sulfate suspension, then slurry feeding tank 8 is entered, slurry, after reaction kettle of the esterification 9, metered shot pump 10, catalyst feeding unit 11, prepolymerization reaction still 12, final polymerization reactor 13 equipment, obtains micro-modified nano-barium sulfate polyester fondant; Prepolymerization reaction still 12 is also connected with vacuum system device 14 with final polymerization nuclear reaction still, guarantees that prepolymerization reaction and final polymerization reaction are carried out under vacuum; Wherein esterification temperature is 270 DEG C, and precondensation temperature is 288 DEG C, and whole condensation temperature is 289 DEG C, and the polyester melt viscosity obtained is 0.627 ~ 0.628dl/g; The particle diameter of nano barium sulfate is at 0.7-1.0 μm;
Second step, the preparation of triangular-section polyester fiber: above-mentioned obtained polyester fondant is passed through melt Conveying pipeline after booster pump supercharging, melt cooler cooling, shunted by distributing valve and enter each spinning manifold, measured by measuring pump, polyester fondant is admitted to after spinning pack filters and extrudes, then obtains as-spun fibre through ring quenching; Spinning condition controls as follows: spinning body temperature controls at 290 DEG C, and filament spinning component pressure is 16MPa, and ring blowing temperature controls at 20 DEG C, and relative humidity is 85%, ring blowing pressure is 25-35Pa;
3rd step, the drawing-off of polyester FDY filament, coiling and molding: as-spun fibre is entered winder winding winding forming with certain tension force after the device such as oiling device, traveller, pre-network, the first hot-rolling, the second hot-rolling; Spinning speed is 4500m/min, and the first heat roller temperature controls at 93 DEG C, and speed is 2150r/min, and the second heat roller temperature controls at 130 DEG C, and speed is 4970r/min.
The Performance comparision of the micro-modification lustrous polyester fiber of the polymerization that the present invention produces and common triangle lustrous polyester fiber is as follows:
(1) comparison of Color: add the spinning cake of nano barium sulfate and not add spinning cake color substantially the same, do not have anything to change, the appearance of fabrics of interpolation nano barium sulfate is a little partially white.
(2) finished silk physical property compares:
| Finished silk | 165/72F (not adding BaSO4) | 165/72F (adding BaSO4) |
| Fiber number (dtex) | 164 | 163.7 |
| Size deviation (%) | -0.6 | -0.8 |
| Fracture strength (cN/dtex) | 3.99 | 4.03 |
| Fracture strength coefficient (CV%) | 3.16 | 2.57 |
| Extension at break (%) | 29.4 | 30 |
| Extension at break coefficient (CV%) | 8.12 | 7.4 |
| L value | 82.5 | 88.7 |
Embodiment 2:
As shown in Figure 1, a kind of preparation method being polymerized micro-modification lustrous polyester fiber, step is as follows successively:
The first step, the preparation of nano barium sulfate trace modified poly ester melt: nano barium sulfate and ethylene glycol are entered nano barium sulfate suspension preparation tank 7 respectively by nano barium sulfate conveyance conduit 5, No. two ethylene glycol conveyance conduits 6, obtained nano barium sulfate suspension; Phthalic acid and ethylene glycol enter slurry preparation 3 respectively by phthalic acid conveyance conduit 1 and an ethylene glycol conveyance conduit 2, under the effect of stirring motor 4, make slurry mix, then slurry feeding tank 8 is entered, the prepolymer that slurry obtains after reaction kettle of the esterification 9, metered shot pump 10 mixes with nano barium sulfate suspension, mixture, after the equipment such as catalyst feeding unit 11, prepolymerization reaction still 12, final polymerization reactor 13, obtains micro-modified nano-barium sulfate polyester fondant; Vacuum system device 14 guarantees that prepolymerization reaction and final polymerization reaction have suitable vacuum, and wherein esterification temperature is 270 DEG C, and precondensation temperature is 288 DEG C, and whole condensation temperature is 289 DEG C, and the polyester melt viscosity obtained is 0.627 ~ 0.628dl/g; The particle size range of nano barium sulfate is at 0.3-0.7 μm;
Second step, the preparation of triangular-section polyester fiber: the polyester fondant of above-mentioned gained is passed through melt Conveying pipeline after booster pump supercharging, melt cooler cooling, shunted by distributing valve and enter each spinning manifold, measured by measuring pump, polyester fondant is admitted to after spinning pack filters and extrudes, then obtains as-spun fibre through ring quenching; Spinning condition controls as follows: spinning body temperature controls at 290 DEG C, and filament spinning component pressure is 16MPa, and ring blowing temperature controls at 20 DEG C, and relative humidity is 85%, ring blowing pressure is 25-35Pa;
3rd step, the drawing-off of polyester FDY filament, coiling and molding: as-spun fibre is entered winder winding winding forming with certain tension force after the device such as oiling device, traveller, pre-network, the first hot-rolling, the second hot-rolling; Spinning speed is 4500m/min, and the first heat roller temperature controls at 93 DEG C, and speed is 2150r/min, and the second heat roller temperature controls at 130 DEG C, and speed is 4970r/min.
The Performance comparision of the micro-modification lustrous polyester fiber of the polymerization that the present invention produces and common triangle lustrous polyester fiber is as follows:
(1) comparison of Color: add the spinning cake of nano barium sulfate and not add spinning cake color substantially the same, do not have anything to change, the appearance of fabrics of interpolation nano barium sulfate is a little partially white.
(2) finished silk physical property compares:
Embodiment 3:
Be that the particle diameter of nano barium sulfate is at 0.55-0.66 μm with the difference of embodiment 2, the fracture strength of finished silk is 5.24cN/dtex after testing.
Claims (3)
1. one kind is polymerized the preparation method of micro-modification lustrous polyester fiber, it is characterized in that: the first step, the preparation of nano barium sulfate trace modified poly ester melt: by phthalic acid and ethylene glycol, be obtained by reacting polyester fondant through esterification, precondensation, final polymerization, described esterification, precondensation, final polymerization reaction are undertaken by state of the art; Interpolation time of nano barium sulfate is before slurry mixing or after esterification before precondensation; During esterification, temperature is 265 DEG C ~ 273 DEG C, and steam pressure is 1.9 ~ 2.5kg/ square centimeter, and precondensation temperature is 280 DEG C ~ 292 DEG C, and whole condensation temperature is 285.7 DEG C ~ 295 DEG C, and the polyester melt viscosity obtained is 0.606 ~ 0.690dL/g; The particle size range of nano barium sulfate is between 0.3 ~ 1 μm, and addition manner is nano barium sulfate glycolic suspension, and polymerization addition is 400 ~ 20000ppm;
Second step, the preparation of triangular-section polyester fiber: above-mentioned obtained polyester fondant is passed through melt Conveying pipeline after booster pump supercharging and melt cooler cooling, shunted by distributing valve and enter into each spinning manifold, and measured by measuring pump, polyester fondant in each spinning manifold is fed to after spinning pack filters and extrudes, described spinning pack comprises spinnerets, and spinnerets is Y shape spinnerets, then makes as-spun fibre through lateral blowing or ring quenching; Spinning condition controls as follows, and it is 280 DEG C ~ 295 DEG C that spinning body temperature controls, and filament spinning component pressure is 12MPa ~ 20MPa, and spinning temperature is 279 DEG C ~ 292 DEG C;
3rd step, the drawing-off of polyester filament, coiling and molding: as-spun fibre is entered winder winding winding forming with certain tension force after oiling device, traveller, pre-network, the first hot-rolling, the second heat roller device; Spinning silk winding speed is 3800m/min ~ 5000m/min, and it is 80 DEG C ~ 100 DEG C that the first heat roller temperature controls, and speed is 1890r/min ~ 2500r/min, and it is 110 DEG C ~ 150 DEG C that the second heat roller temperature controls, and speed is 3800r/min ~ 5000r/min.
2. a kind of preparation method being polymerized micro-modification lustrous polyester fiber according to claim 1, it is characterized in that: phthalic acid and ethylene glycol are entered slurry preparation (3) respectively by phthalic acid conveyance conduit (1) and an ethylene glycol conveyance conduit (2), under the effect of stirring motor (4), make slurry mix, nano barium sulfate and ethylene glycol enter nano barium sulfate suspension preparation tank (7) respectively by nano barium sulfate conveyance conduit (5), No. two ethylene glycol conveyance conduits (6) simultaneously; In slurry transferring process, mixed with slurry by nano barium sulfate suspension, then slurry feeding tank (8) is entered, slurry, after reaction kettle of the esterification (9), metered shot pump (10), catalyst feeding unit (11), prepolymerization reaction still (12), final polymerization reactor (13) equipment, obtains micro-modified nano-barium sulfate polyester fondant; Prepolymerization reaction still (12) and final polymerization reactor are also connected with vacuum system device (14), guarantee that prepolymerization reaction and final polymerization reaction are carried out under vacuum; Wherein esterification temperature is 270 DEG C, and precondensation temperature is 288 DEG C, and whole condensation temperature is 289 DEG C, and the polyester melt viscosity obtained is 0.627 ~ 0.628dL/g; The particle diameter of nano barium sulfate is at 0.7-1.0 μm.
3. a kind of preparation method being polymerized micro-modification lustrous polyester fiber according to claim 1, it is characterized in that: polyester fondant passes through melt Conveying pipeline after booster pump supercharging, melt cooler cooling, shunted by distributing valve and enter each spinning manifold, measured by measuring pump, polyester fondant is admitted to after spinning pack filters and extrudes, then obtains as-spun fibre through ring quenching; Spinning condition controls as follows: spinning body temperature controls at 290 DEG C, and filament spinning component pressure is 16MPa, and ring blowing temperature controls at 20 DEG C, and relative humidity is 85%, and ring blowing pressure is 25-35Pa.
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Effective date of registration: 20171205 Address after: Zhejiang city of Huzhou province Wuxing District 313021 District East Town Industrial Zone Patentee after: XINFENGMING GROUP HUZHOU ZHONGSHI TECHNOLOGY CO., LTD. Address before: 314500 Tongxiang, Zhejiang City Industrial Park, the town of Stephen Patentee before: Tongxiang Zhongchen Chemical Fibre Co., Ltd. |