CN1333118C - Polyester fiber possessing weaving white powderless and good shaping yarn and its manufacturing method - Google Patents
Polyester fiber possessing weaving white powderless and good shaping yarn and its manufacturing method Download PDFInfo
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- CN1333118C CN1333118C CNB031556868A CN03155686A CN1333118C CN 1333118 C CN1333118 C CN 1333118C CN B031556868 A CNB031556868 A CN B031556868A CN 03155686 A CN03155686 A CN 03155686A CN 1333118 C CN1333118 C CN 1333118C
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Abstract
The present invention relates to a preparation method for weaving polyester fibers with the advantages of no white powder and good yarn forming. After polyester polymers with the inherent viscosity of (IV)0.5 to 0.7 and the melting point of 245 to 265DEGC are melted and filtered by heating, polyester fibers are quantitatively extruded by a single yarn coiling forming or multi-yarn merged forming melt spinning method. Obtained single fiber polyester fibers of denier as high as 5d to 55d have the advantage of high modulus, and are suitable as resilient support materials of shoe materials, printing meshes, wedding gowns, etc. The problem of splotchy cloth caused by easy generation of white powder in the post period of weaving and finishing is solved.
Description
Technical field
The present invention relates to a kind of polyester fiber and manufacture method thereof.
Background technology
Polyester fiber is to have excellent mechanical properties and dyeability, and cost is low, be the most normal being used in three big synthetic fiber, reduce cost in recent years and seek to have more the material of rigidity, processers such as footwear material are urgent to this demand, material replaces original anti-grand fiber commonly used with polyester fiber gradually, for reaching the function sexual demand that material has better rigidity, the single fiber DENIER of polyester fiber needs big, that is diameter needs thick.Usually polyester fiber is to get via polyester grain melt spinning, and the high Denier polyester fiber of single fiber is difficult than general requirements for Cooling Control, even the neither general requirements that is same as of the setting of the requirement of equipment and condition, how to provide the high Denier polyester fiber of single fiber stable manufacture method, promptly become the problem that needs to be resolved hurrily.
Directly extend spinning (SpinDrawingYarn, to call SDY in the following text) method, often be used to the manufacturing of synthetic fiber, this is well-known method, and the manufacture of the high Denier polyester silvalin of single fiber can be divided into the single tow of direct production or machine promptly so-called non-twist minute fibril again through a minute fibre with many tow merging productions in direct extension spin processes.
In a minute fine method with synthetic fiber, as disclosing the manufacture method of above-mentioned non-twist minute fibril in the Japanese kokai publication sho 59-116405 communique, be to spin many silks, oil respectively with monofilament, and the tow group batches after extending via the 2nd heating roller at the 1st heating roller draft again, but during the branch fibril more than producing the red Buddhist nun 10d of single fiber (Denier), the tow generation tow that the 1st heating is walked on the roller bigger situation that rolls, productivity is not good.
Japanese kokai publication hei 3-16154 communique in addition, disclosing and before the 1st roller, setting up 1 group of cold roller, increase pretension reducing the 1st roller tow bigger situation that rolls, but the tension force that oils before this cold roller is being still low, and be unfavorable for the improvement of production status, and increase equipment cost.
Similar invention has TOHKEMY 2000-64118 communique, disclosing and before the 1st roller, setting up 1 group and drive cold roller, select for use spinning oil to make the manufacture method of tow and the synthetic fiber of the intermetallic coefficient of kinetic friction between 0.1 to 0.35, but and unspecified surface of roller rugosity inhibition situation that tow is rolled.
No matter the high Denier polyester silvalin of single fiber is directly produced single tow or is merged non-twist minute fibril of production with many tow, inhibition that the tow of inquiring into except that aforementioned documents rocks and then the lifting productivity, in addition to how to improve the moulding of the high Denier polyester silvalin of single fiber is bad to add white powder in man-hour problem such as too much with back segment, and aforementioned documents proposes concrete improvement explanation at this problem.
Summary of the invention
Because when direct fabrics extend, when running into high Denier yarns and producing the cooling deficiency, tow is big in rolling on the roller, the spinning cake moulding is bad, finished product produces shortcomings such as white powder when weaving, when the present invention does not increase cooling length reducing the cooling wind-warm syndrome, can effectively promote the tow cooling effect, improve making the too soft phenomenon of tow because of cooling off deficiency; Reduce the surface of roller roughness, increase between tow and surface of roller frictional force and then reduce in the walking tow bigger phenomenon that rolls, for improving the durability of surface of roller roughness, surface of roller is imposed chromium plating to be handled, make at processing procedure and give suitable finish and heating condition, can weave the good and good high Denier polyester fiber product of single fiber of moulding of quality.
Purpose of the present invention, provide a kind of manufacture method of polyester fiber, be to intrinsic viscosity (IV) 0.5～0.7, the polyester polymers that fusing point is 245～265 ℃, quantitatively extrude after via this polyester polymers of heating its fusing being filtered polyester fiber can single yarn batch the melt spinning method that moulding or many yarns merge moulding, the method is characterized in that:
(a) the polyester melt of this quantitatively being extruded is via the spinnerets hole tow that evenly spues that spues, and the tow after this spues solidifies via the cooling air apparatus cools in the spinnerets below, and this cooling device installs cooling coil additional and makes the cooling wind-warm syndrome remain on 10～15 ℃;
(b) this cooling back tow is after oiling, process with direct extension spinning (SDY) equipment roller, and the surface of this equipment roller imposes the chromium plating processing, the 1st heating surface of roller roughness Ra0.025～0.1 μ m, the 2nd heating surface of roller roughness Ra0.1～0.5 μ m;
(c) this tow via between the 1st heating roller and the 2nd heating roller with 3.5～5 times of extensions of extension ratio, 85～105 ℃ of the 1st heating roller temperature, and the 2nd heat 130～160 ℃ of roller temperature;
(d) can get single fiber DENIER 5d～55d via aforementioned condition and directly extend spinning (SDY), and EO/PO (ethylene oxide/propylene oxide) component content in the used finish that oils is between 50%～90%.
When making artificial fibre, the single fiber DENIER is high more, often need more normal cooling length for generally closing the known technology of fine manufacturer, therefore in effective space utilization, merely for making cooling enough increase cooling device length, also infeasible actually, and the modification of equipment is expensive excessive, and improper.
The method relevant with the present invention, be to add the chilled water coil pipe in cooling air source to reduce wind-warm syndrome to 10～15 ℃, the polyester fibers of single fiber DENIER 5d～55d is enough cooled off, and when oil tanker oiled, strand was unlikely to too soft and can't ordinary production.The cooling wind-warm syndrome requires 10～15 ℃, can overcome the too high polyester fibers of single fiber DENIER and cool off not foot phenomenon, is applicable to the manufacturing of single fiber DENIER 5d～55d polyester fibers; Cooling wind-warm syndrome temperature is lower than 10 ℃, its difficulty is arranged in the design of equipment, and cost of investment increases.Cooling wind-warm syndrome temperature is higher than 15 ℃, strand is crossed low can't stablizing because of its tension force and is oiled because of cooling off deficiency when spin finishing, fracture of wire increases with metachromia unusual when causing spinning, increase cool time and increase device length if make the cooling abundance, in the utilization in space, can increase cost of investment.
The method relevant with invention, the cooling media in the chilled water coil pipe that aforementioned cooling air source adds can be chilled water, EG (ethylene glycol) etc.
With the relevant method of invention, wherein aforementioned spinnerets pore cross section more than one that colony that circle, hollow, Y shape, in-line, quadrangle, triangle, hexagon, cross and C type form selects of serving as reasons that spue.
The method relevant with invention, wherein gained polyester yarn rerum natura intensity is higher than 4.8g/d, degree of stretching 20～30%, boiling water shrinkage less than 8%.
The method relevant with the present invention, be directly to extend spinning (SDY) the 1st heating surface of roller chromium plating to handle, surface roughness requires Ra0.025～0.1 μ m, the 2nd heating surface of roller chromium plating is handled, surface roughness requires Ra0.1～0.5 μ m, can make single fiber DENIER 5d～55d polyester fibers tow rock well (＜1.5mm), and rock well because of tow, be used in and produce its twist reduction of the fine yarn of non-twist branch, divide fine fracture of wire good.The method relevant with the present invention, be the 1st heating surface of roller roughness Ra0.025～0.1 μ m that directly extends spinning (SDY), and be to reach the minute surface requirement that surface roughness requires Ra0.025～0.1 μ m, the 1st heating surface of roller is adopted chromium plating and is handled, and chromium plating is handled, it is good to plate porcelain treatment surface roughness maintenance, increases life cycle, reduces production costs.And surface roughness realizes in adding actual being difficult in man-hour less than Ra0.025 μ m; When the 1st heating surface of roller roughness is higher than Ra0.1 μ m, strand because of with surface of roller frictional force deficiency, add hot mastication, the tow sharply increase of rolling makes the spinning productivity not good.General the 2nd heating surface of roller is handled with the plating porcelain, surface roughness is about Ra0.6～0.9 μ m, and the method relevant with the present invention, be to impose chromium plating to handle, can exempt from because of the plating porcelain through the time change fast shortcoming, it is good to plate porcelain treatment surface roughness maintenance, increase life cycle, reduce production costs, its surface roughness do not need to require as the 1st heating surface of roller roughness so thin, because of strand attenuates after extending, increase with surface of roller frictional force, so tow rocks minimizing on the roller in extending, and the full curled hair cake of filament winding machine productions of changing sides for the benefit of, so surface roughness requirement Ra0.1～0.5 μ m.Surface roughness is lower than Ra0.1 μ m, rock favourable for tow, but be unfavorable for the production of changing sides of the full curled hair cake of filament winding machine, because of single fiber DENIER 5d～55d polyester fibers curled hair tension force must be low, and when extension surface of roller roughness is lower than Ra0.1 μ m, strand is higher because of frictional force, and when changing sides curled hair, easy reduction because of tension force makes strand glue back surface of roller and causes fracture of wire.The 2nd heating surface of roller roughness is higher than Ra0.5 μ m, and strand is because of the frictional force deficiency, adds the hot mastication tow and rolls and sharply increase, and makes the spinning productivity not good.The high polyester fibers of single fiber DENIER itself is because of little with the surface of roller contact-making surface, so the mutual frictional force of strand and roller is little, being easy to produce on the roller tow rolls, and after the chrome-faced mirror process and the 2nd heating surface of roller rugosity Ra0.1～0.5 μ m chrome-faced processing improvement of the present invention the 1st heating surface of roller rugosity Ra0.025～0.1 μ m, can effectively increase strand and surface of roller contact area, and then increase frictional force, reach and reduce the purpose that tow rolls, be beneficial to the manufacturing production of single fiber DENIER 5d～55d polyester fibers.The present invention except that in single yarn productivity of direct production well, in producing many when merging non-twist minute fibril,, reduce yarn and twist with the fingers phenomenon and take place also because of tow reductions of rolling, divide fine processing significantly to reduce because of twisting with the fingers generation fracture of wire number of times.
The polyester fibers of producing the high DENIER 5d of single fiber～55d the most important thing is how to overcome the rigidity and the residual stress of yarn except that foregoing problems, be beneficial to spinning cake and batch the storehouse moulding and reduce the throwing yarn.
The inventor is through discovering for a long time, (its 1st heating roller temperature when direct extension (SDY) is produced of single fiber DENIER＜5d) only needs the temperature than Tg (vitrification point) to get final product with interior for high 10 ℃ to common specification yarn, polyester fiber Tg temperature is about about 74 ℃, and the 1st heating roller temperature is set the low more reduction that helps the warping filoplume more, and it doesn't matter, and rigidity problem just exists, and the polyester fibers of single fiber DENIER 5d～55d is when same units tension force (g/d) filament winding machine batches production down, its spinning cake moulding side is protruding big, the throwing yarn is serious, and productivity is poor.If only be merely to reduce filament winding machine to traverse angle and filament winding machine coiling tension to overcome the protruding big and serious throwing yarn of single fiber DENIER 5d～55d polyester fibers spinning cake moulding side, also Chang Yinyi fracture of wire and normally spinning.Be by the rigidity of the thicker high Denier yarns of single fiber of diameter and stress-retained caused by analysis as can be known.
The inventor is that research is set about in heating at roller, find only to improve merely the 2nd heating roller temperature and can only passively reduce stress-retained amount and rigidity, needing actively by it source to take place on the contrary sets about improving, therefore to be higher than that a lot of temperature of Tg produced be effective method to the 1st heating roller to be set in, this is bestowed 3.5～5 times high power extension usually because of single fiber DENIER 5d～55d polyester fibers, if the 1st heating roller underheat, add under the high-speed production of direct extension spinning (SDY), extend as cold extension for the single fiber interior molecules, cause stress-retained and the big phenomenon of rigidity, certain unfavorable spinning cake batches moulding.Can make the filament winding machine coiling tension reduce to 0.1g/d via the inventive method, production status is good, and the spinning cake moulding is good, and yarn is because of the abundance of being heated, and metachromia is good.It must be emphasized that at this and to improve the 1st heating roller heating-up temperature, relative increase tow rolls, and must cooperate aforementioned institute to carry cooling wind-warm syndrome and surface of roller rugosity beginning and can effectively overcome tow and roll and promote spinning product condition.
The inventive method is to utilize directly to extend spinning (SDY), wherein the 1st heating roller heating-up temperature is made as 85～105 ℃, the 2nd heating roller heating-up temperature is made as 130～160 ℃, can effectively reduce single fiber DENIER 5d～55d polyester fibers and extend the residual stress produced in 3.5～5 times, and then reduce coiling tension with steady production and must the good spinning cake of moulding.When the 1st heating roller heating-up temperature is lower than 85 ℃, strand adds man-hour through extension, find to have can't reduce coiling tension and make spinning cake moulding side protruding big with to throw yarn too much, this be because of single fiber DENIER 5d～55d polyester fiber yarn denier excessive, can't be sufficient softening, cause due to residual stress increases.When the 1st heating roller heating-up temperature was higher than 105 ℃, strand was too softening, and tow rolls and increases and the phenomenon of gluing back roller, unfavorable normal spinning arranged.When the 2nd heating roller heating-up temperature is lower than 130 degree ℃, can't effectively reduce yarn institute residual stress, can't and then reduce coiling tension, will cause the protruding school of spinning cake moulding side big with to throw yarn too much.If reduce coiling tension reluctantly, produce and produce the condition variation.When the 2nd heating roller heating-up temperature was higher than 160 ℃, product condition variation was produced in tow increases of rolling.
Single fiber DENIER 5d～55d polyester fibers is except that aforementioned production problem, topmost problem is that yarn is easily given birth to white powder on weaving, often cause the cloth cover white dirt, or add in a minute fine warping and to rupture easily man-hour, through inquiring into the reason that white powder generates, may be to produce silk that high directed high crystallization yarn when weaving is subjected to silk road, many places and lead friction and sweep institute and cause, go into to cause bad phenomenon such as cloth cover white dirt and streak by cotton yarn tape through weaving again because of fiber molecule is subjected to high the extension.Reduction is directed to have improvement slightly with crystallization though can reach via the reduction ratio of elongation, but in practical application, reduce ratio of elongation or reduce the fiber molecule orientation and crystallization equals to improve the instability of degree of stretching Yu the fiber of fiber, be easy to back segment and weave counter productives such as adding the unusual extension of generation in man-hour, and lose the thicker high property the endured characteristic of single fiber diameter.
The inventive method takes place with preventing white powder for not reducing high very property effect, set about improving from increasing film strength, and the finish composition of polyester fiber is to be combined by multiple additives usually, wherein EO/PO (ethylene oxide/propylene oxide) content is optionally different and variant, when the inventive method was located at 50%～90% scope through experiment discovery EO/PO (ethylene oxide/propylene oxide) component content, white powder took place significantly to reduce.Because of the film strength deficiency, white powder can increase when weaving warping during EO/PO less than 50%.EO/PO is higher than at 90% o'clock, and the metering of other subadditive is difficulty, unfavorable operation convenience.
By the invention described above method the single fiber DENIER have high mode up to the polyester fiber of 5d～55d, be applicable to the purposes such as resiliency supported material, printing mesh, wedding dress of footwear material.Solution is weaved the easily living white powder of warping process at back segment and is caused fabric defect.
Analytical method
(1) surface roughness: analyze analysis length 15mm gained data with HOMMELWERKE system T1000C roughmeter.
(2) the white powder test of nuzzling up: stretch twister with ZINSERDT517,, recoil speed 890m/min, relatively with the residual white powder assessment of time walking back institute on limit collar at the EO/PO different proportion finish yarn that oils.
(3) strength and elongation so TEXTECHNOSTATIMATM analyzer be with former long 500mm, speed 600mm/min, and first loading 0.5cN/tex analyzes and gets.
(4) boiling water shrinkage is to get 20 loop yarns in following loading 100g, measures to such an extent that length is former long L, yarn is placed boiling water to boil that loading 100g measures to such an extent that shrink back length L 1 after 30 minutes again, and shrinkage factor is 100% (L-L1)/L.
Description of drawings
Icon simple declaration of the present invention and symbol description thereof:
Fig. 1 is direct extension spinning of the present invention (SDY) silk road schematic diagram;
Fig. 2 is that tow of the present invention contacts schematic diagram with oil tanker.
The specific embodiment
Hereinafter embodiment 1～5 and comparative example 1～4, primary condition is that the polyester grain sprays with aperture 0.6mm spinnerets after 285 ℃ of fusions, after all temps cooling air cooling as shown in table 1, bestowing different EO/PO content finishes with oil tanker oils, last oil mass is 0.8%, extended with speed 900m/min through the 1st heating roller, after 4 times of extensions of the 2nd heating roller, batch afterwards and get again by filament winding machine.Comparative example is used for comparative descriptions.
Comparative example 2 is specification 50d/1f, 22 ℃ of cooling air temperature, it is poor that yarn solidifies, poor (tow 5～the 8mm that rolls of last oiliness, and tow contacts the most nearly 150 ° of the angle of bend θ of back tow own with oil tanker, non-rectilinear is advanced and is oiled), 82 ℃ of the 1st heating roller temperature, surface roughness Ra 0.025 μ m, tow roll well (＜1.5mm), 160 ℃ of the 2nd heating roller temperature, surface roughness Ra 0.1 μ m, that tow rolls is good (1.5mm～2mm), filament winding machine tension force 0.15g/d, productivity poor (8～12 times/day lines), finish uses EO/PO content 90%, weaves no white powder, moulding throw yarn serious (＞2/kg).
Comparative example 4 is specification 50d/1f, 10 ℃ of cooling air temperature, yarn solidifies good, good (tow 3mm～the 5mm that rolls of last oiliness, and tow contacts the most nearly 165 ° of the angle of bend θ of back tow own with oil tanker, non-rectilinear is advanced and is oiled), 96 ℃ of the 1st heating roller temperature, surface roughness Ra 0.2 μ m, tow roll extreme difference (＞3mm), 160 ℃ of the 2nd heating roller temperature, surface roughness Ra 0.9 μ m, tow roll extreme difference (＞3mm), filament winding machine tension force 0.1g/d, productivity extreme difference (＞12 times/day lines), finish uses EO/PO content 15%, and it is poor to weave white powder, moulding throw yarn good (＜0.3/kg).
Comparative example 3 is specification 30d/10f, 22 ℃ of cooling air temperature, it is poor that yarn solidifies, poor (tow 5mm～the 8mm that rolls of last oiliness, and tow contacts the most nearly 155 ° of the angle of bend θ of back tow own with oil tanker, non-rectilinear is advanced and is oiled), 80 ℃ of the 1st heating roller temperature, surface roughness Ra 0.025 μ m, tow roll well (＜1.5mm), 140 ℃ of the 2nd heating roller temperature, surface roughness Ra 0.5 μ m, that tow rolls is good (1.5mm～2mm), filament winding machine tension force 0.3g/d, productivity poor (8～12 times/day lines), finish uses EO/PO content 10%, and it is serious to weave white powder, moulding throw yarn poor (0.6～2/kg).
Comparative example 1 is specification 300d/10f, 12 ℃ of cooling air temperature, yarn solidifies good, last oiliness is stable, and (tow rolls＜3mm, and tow contacts the back linearity with oil tanker good), 96 ℃ of the 1st heating roller temperature, surface roughness Ra 0.2 μ m, poor (140 ℃ of the 2～3mm), the 2nd heating roller temperature that tow rolls, surface roughness Ra 0.7 μ m, that tow rolls is poor (2mm～3mm), filament winding machine tension force 0.1g/d, productivity extreme difference (＞12 times/day lines), finish uses EO/PO content 83%, weaves no white powder, the fiber separation extreme difference (fracture of wire＞1.5 time/kg), moulding throw yarn good (＜0.3/kg).
Above embodiment 1～5 concludes as table 1 with comparative example 1～4.
Table 1
| Explanation | Embodiment | With | |||||||
| Numbering | |||||||||
| 1 | 2 | 3 | 4 | 5 | 1 | 2 | 3 | 4 | |
| Specification | 100d/10f | 200d/l 0f | 50d/lf | 30d/1f | 300d/10f | 300d/10f | 50d/1f | 30d/1f | 50d/1f |
| The cooling wind-warm syndrome | 15℃ | 14 |
10℃ | 13℃ | 12℃ | 12℃ | 22℃ | 22 |
10℃ |
| Last oiliness (yarn curing) | ◎ | ◎ | ○ | ◎ | ◎ | ◎ | × | × | ○ |
| The first heating roller temperature | 85℃ | 93℃ | 105℃ | 96℃ | 96℃ | 96℃ | 82℃ | 80℃ | 96℃ |
| Rugosity Ra | 0.1μm | 0.1μm | 0.025μm | 0.025μm | 0.025μm | 0.2μm | 0.025μm | 0.025μm | 0.2μm |
| Silk shakes | ◎ | ◎ | ○ | ◎ | ◎ | × | ◎ | ◎ | ×× |
| The second heating roller temperature | 130℃ | 135℃ | 160℃ | 140℃ | 140℃ | 140℃ | 160℃ | 140℃ | 160℃ |
| Rugosity Ra | 0.5μm | 0.5μm | 0.1μm | 0.3μm | 0.3μm | 0.7μm | 0.1μm | 0.5μm | 0.9μm |
| Silk shakes | ◎ | ◎ | ○ | ◎ | ◎ | × | ○ | ○ | ×× |
| Roll tension force | 0.1g/d | 0.1g/d | 0.1g/d | 0.1g/d | 0.1g/d | 0.1g/d | 0.15g/d | 0.13g/d | 0.1g/d |
| Productivity | ◎ | ◎ | ○ | ◎ | ◎ | ×× | × | × | ×× |
| Contain EO/PO amount % in the finish | 50 | 73 | 90 | 80 | 83 | 83 | 90 | 10 | 15 |
| White powder | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ×× | × |
| Fiber separation | ◎ | ◎ | / | / | ◎ | ×× | / | / | / |
| Yarn is thrown in moulding | ◎ | ◎ | ○ | ◎ | ◎ | ◎ | ×× | × | ○ |
Diagram: ◎: good zero: good *: poor * *: extreme difference
Fig. 1 is direct extension spinning of the present invention (SDY) silk road schematic diagram, by spinnerets 1, oil tanker 2, flake silk lead 3, the clavate silk leads 4, the wheel shape silk is led the 5, the 1st heating roller the 6, the 2nd heating roller 7, the dog tailfiber leads 8, the dog tailfiber leads 9, spinning cake 10 is formed.The said structure and the course of work are conspicuous for a person skilled in the art, so be not described in detail.
Claims (4)
1, a kind of method for making of polyester fiber, be to intrinsic viscosity (IV) 0.5～0.7, the polyester polymers that fusing point is 245～265 ℃, quantitatively extrude after via this polyester polymers of heating its fusing being filtered polyester fiber can single yarn batch the melt spinning method that moulding or many yarns merge moulding, it is characterized in that:
A. the polyester melt of this quantitatively being extruded is via the spinnerets hole tow that evenly spues that spues, and the tow after this spues solidifies via the cooling air apparatus cools in the spinnerets below, and this cooling device installs cooling coil additional and makes the cooling wind-warm syndrome remain on 10～15 ℃;
B. this cooling back tow is after oiling, and with direct extension spinning equipment roller processing, and the surface of this equipment roller imposes the chromium plating processing, the 1st heating surface of roller roughness Ra0.025～0.1 μ m, the 2nd heating surface of roller roughness Ra0.1～0.5 μ m;
C. this tow via between the 1st heating roller and the 2nd heating roller with 3.5～5 times of extensions of extension ratio, 85～105 ℃ of the 1st heating roller temperature, and the 2nd heat 130～160 ℃ of roller temperature;
D. can get single fiber DENIER 5d～55d via aforementioned condition and directly extend spinning, and the ethylene oxide/propylene oxide component content in the used finish that oils is between 50%～90%.
2, the method for making of polyester fiber according to claim 1 is characterized in that: wherein aforementioned spinnerets pore cross section more than one that colony that circle, hollow, Y shape, in-line, quadrangle, triangle, hexagon, cross and C type form selects of serving as reasons that spue.
3, the method for making of polyester fiber according to claim 1 is characterized in that: wherein the cooling media of the cooling coil of aforementioned cooling device is chilled water, ethylene glycol.
4, a kind of polyester fiber is characterized in that: be the method for making of polyester fiber according to claim 1 and getting, intensity be higher than 4.8g/d, degree of drawing between 20～30%, boiling water shrinkage is less than 8%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031556868A CN1333118C (en) | 2003-09-03 | 2003-09-03 | Polyester fiber possessing weaving white powderless and good shaping yarn and its manufacturing method |
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| CNB031556868A CN1333118C (en) | 2003-09-03 | 2003-09-03 | Polyester fiber possessing weaving white powderless and good shaping yarn and its manufacturing method |
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| CN1590606A CN1590606A (en) | 2005-03-09 |
| CN1333118C true CN1333118C (en) | 2007-08-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831718A (en) * | 2010-05-24 | 2010-09-15 | 桐乡市中辰化纤有限公司 | Method for preparing super-thick denier polyester monofilament |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5928895B2 (en) * | 2012-09-28 | 2016-06-01 | Ｔｍｔマシナリー株式会社 | Stretched yarn manufacturing method and stretched yarn manufacturing apparatus |
| TWI648452B (en) * | 2017-08-15 | 2019-01-21 | 盧亨如 | Method for preservation of historical artifacts |
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| US4041689A (en) * | 1975-11-11 | 1977-08-16 | E. I. Du Pont De Nemours And Company | Multilobal polyester yarn |
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|---|---|---|---|---|
| CN101831718A (en) * | 2010-05-24 | 2010-09-15 | 桐乡市中辰化纤有限公司 | Method for preparing super-thick denier polyester monofilament |
| CN101831718B (en) * | 2010-05-24 | 2012-07-04 | 桐乡市中辰化纤有限公司 | Method for preparing super-thick denier polyester monofilament |
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| CN1590606A (en) | 2005-03-09 |
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