CN1220801C - High viscosity poly ester monofilament and its producing method and use - Google Patents
High viscosity poly ester monofilament and its producing method and use Download PDFInfo
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- CN1220801C CN1220801C CN 03140334 CN03140334A CN1220801C CN 1220801 C CN1220801 C CN 1220801C CN 03140334 CN03140334 CN 03140334 CN 03140334 A CN03140334 A CN 03140334A CN 1220801 C CN1220801 C CN 1220801C
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- monofilament
- temperature
- screens
- spinning
- viscosity
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- 229920000728 polyester Polymers 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims description 7
- 238000001035 drying Methods 0.000 claims abstract description 3
- 238000009987 spinning Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 2
- -1 polyethylene terephthalate Polymers 0.000 claims description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 abstract description 13
- 238000009941 weaving Methods 0.000 abstract description 7
- 238000002074 melt spinning Methods 0.000 abstract description 2
- 239000004753 textile Substances 0.000 abstract description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 abstract 2
- 239000002202 Polyethylene glycol Substances 0.000 abstract 1
- 230000002929 anti-fatigue Effects 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000000048 melt cooling Methods 0.000 abstract 1
- 229920001223 polyethylene glycol Polymers 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
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- Artificial Filaments (AREA)
Abstract
The present invention relates to a high viscosity polyester monofilament, a preparation method thereof and use thereof. The main component of the high viscosity polyester monofilament is polyethylene glycol terephthalate whose intrinsic viscosity is at least 0.9, and the present invention is prepared by steps of drying, melt spinning, cooling and forming, drafting, heat forming, etc. The monofilament has the advantages of smooth surface, uniform diameter, good roundness, stable performance, favorable weaving performance, antifatigue performance and high wear resistance; the monofilament can be extensively used for industrial textile and is especially used for papermaking machine screens, spacer screens used for conveyor belts, mine conveying screens, spacer screens used for papermaking felt and filter screens.
Description
Technical field
The present invention relates to a kind of high-viscosity polyester monofilament that is applied to industrial textile.
Background technology
At present, the polyester papermaking wire-cloth monofilament of domestic papermaking manufacturer production is to adopt the polyester slice of common viscosity to produce, its inherent viscosity [η] spy=0.8.Because the limitation of common viscosity polyester slice, filament abrasive resistance, the fatigue durability produced are relatively poor, and therefore the industrial net of weaving out with this monofilament is lacked service life, can not satisfy the demand for development of paper technology.But adopt full-bodied polyester slice to spin monofilament polyester; then because the polyester slice with high viscosity molecular weight is big; the melt viscosity height; spinning pressure is higher in the spinning process; melt post extrusion swelling effect is obvious, and regular meeting the melt deformity takes place or breaks, and causes the strand irregularity; have a strong impact on the quality of monofilament, even can not ordinary production.
Summary of the invention
The objective of the invention is to overcome the problem that existing procucts exist, a kind of manufacture method of high-viscosity polyester monofilament is provided, can produce stable performance, good, wear-resistant, the fatigue proof high-viscosity polyester monofilament of weaving performance.
A further object of the invention provides the application of high-viscosity polyester monofilament.
The object of the present invention is achieved like this: a kind of manufacture method of high-viscosity polyester monofilament comprises the processing step of following order:
(1) drying is that the polyester slice of the polyethylene terephthalate of inherent viscosity 〉=0.9 is dried to moisture＜50ppm with main component;
(2) be that 10～12 spinneretss melt extrude spinning through draw ratio L/D, spinning temperature is 280 ± 5 ℃, and 295 ± 5 ℃, 293 ± 5 ℃, 292 ± 5 ℃, 292 ± 5 ℃, 292 ± 5 ℃, 290 ± 5 ℃, spinning pressure is 80-90bar;
(3) cooling forming, forming temperature are 55～60 ℃;
(4) two sections drawing-offs, 2.8～3.2 times of one section hot water draw ratios, drawing temperature is 85～90 ℃, 1.5～1.75 times of two sections hot-air draw ratios, drawing temperature is 180～185 ℃;
(5) hot-air typing, temperature is 225～230 ℃.Be wound into silk by oiling, promptly successfully produce high-quality high-viscosity polyester monofilament.
Described high-viscosity polyester monofilament is applied to the Weaving paper-making net, and its use amount accounts for whole more than 1/3rd of used monofilament that throw the net; Be used for the used for conveyer belt spacer screen, its use amount accounts for whole more than 1/2nd of used monofilament that throw the net; Be used for the mine carry use net, its use amount to account for to put in order two of the used monofilament of throwing the net/more than; Be used for the spacer screen that felt is used, its use amount accounts for more than 1/5th of felt spacer screen; The reinforcement that is used for screen pack, its use amount account for whole more than 1/5th of used monofilament that throw the net.
The high-viscosity polyester monofilament that adopts polyester slice with high viscosity to spin out, its monofilament strand smooth surface, diameter is even, roundness good, stable performance, weaving performance is good, endurance, high abrasion resistance, its physical property has reached:
Warp: ultimate strength 〉=53CN/tex, elongation at break 〉=16%,
Dry-hot shrinkage (180 ℃ * 10min)=12 ± 1.5%
Parallel: ultimate strength 〉=40CN/tex, elongation at break 〉=48%,
Dry-hot shrinkage (180 ℃ * 10min)=2 ± 0.7%
Be compared as follows with the fatigue durability of conventional polyester monofilament:
| Project | The high-viscosity polyester monofilament | The conventional polyester monofilament | ||
| Φ 0.25 parallel | Φ 0.20 warp | Φ 0.25 parallel | Φ 0.20 warp | |
| Fatigue durability (number of times) | 38763 | 24844 | 16553 | 11841 |
As seen from the above table, the anti-tired friction number of times of high-viscosity polyester monofilament of the present invention is that 38763 times (Φ 0.25) and 24844 times (Φ 0.20) are respectively 2.34 times and 2.10 times of conventional polyester monofilament, and its fatigue performance is significantly increased.
High-viscosity polyester monofilament net of the present invention grinds off same thickness with common poly-monofilament net at the same terms and compares, and its revolution difference has improved 19.35%, deduction error coefficient 15%, and the anti-wear performance of reckoning has improved 16%.
The specific embodiment
The present invention adopts full-bodied polyester slice ([η]
Special〉=0.9) carry out melt spinning, solved the strand deformity that the high viscosity polyester slice spinning causes, broken and the not smooth suitable difficult problem of melt flows, the present invention improves the spinnability of high viscosity polyester slice spinning by improving Design of spinneret.The draw ratio of the general design of common spinnerets is L/D=2-5 times, does not satisfy the specification requirement of high sticking slice spinning, is the bottleneck of the high sticking spinning of restriction.By improving, the aperture of the circular spinnerets that the present invention uses is Φ 0.80mm-Φ 2.0mm, and draw ratio is L/D=10-12; Profile spinneret, as square, rectangle, ellipse and trilobal, draw ratio is L/D=10-12.High sticking melt by spinneret hole the time, the degree of orientation of melt, regularity improves, expanded stress weakened after melt went out spinnerets, reduced the deformity of melt and broken, melt mobile smooth and easy, the strand standard is greatly improved product quality.
Further the present invention will be described below in conjunction with specific embodiment.
Embodiment 1:
(1) with full-bodied wet polyester slice ([η] special=0.90) under 165 ℃ of conditions dry 6 hours, make its moisture content be lower than 50ppm;
(2) section is done in fusion, and by the spinnerets of aperture Φ 1.0mm, draw ratio L/D=10, the screw rod extrusion temperature is 280 ℃, and 293 ℃, 290 ℃, 290 ℃, 290 ℃, 287 ℃, 287 ℃, spinning pressure is 85bar, and speed is 19.8m/min;
(3) after the supercooling moulding, forming temperature is 57 ℃ to melt through extruding;
(4) adopt two sections drawing-offs, 85 ℃ of hot water drawing temperatures, draft speed are 55.5m/min, 2.8 times of draw ratios, and 185 ℃ of hot-air drawing temperatures, draft speed are 95m/min, 1.75 times of draw ratios;
(5) hot-air typing, 225 ℃ of temperature, draft speed is 90m/min.Be wound into silk by oiling, promptly produce Φ 0.25mm parallel monofilament, its physical index is respectively Φ 0.25 ± 0.03mm, fracture strength 46.3CN/tex, and elongation at break 50.2%, dry-hot shrinkage (180 ℃ * 10min) be 1.5%.
This monofilament is applied to Weaving paper-making net parallel, and its use amount accounts for whole more than 1/3rd of used monofilament that throw the net; Being used for the mine conveying uses net, its use amount to account for whole more than 1/2nd of used monofilament that throw the net; The parallel that is used for the conveyer belt spacer screen, its use amount accounts for more than 1/2nd of felt spacer screen; The spacer screen that is used for felt, its use amount accounts for more than 1/5th of felt spacer screen; The reinforcement that is used for screen pack, its use amount account for whole more than 1/5th of used monofilament that throw the net.
Embodiment 2:
(1) with full-bodied wet polyester slice ([η] special=0.94) under 165 ℃ of conditions dry 6 hours, make its moisture content be lower than 50ppm;
(2) section is done in fusion, and by the spinnerets of aperture Φ 1.0mm, draw ratio L/D=10, the screw rod extrusion temperature is 280 ℃, and 291 ℃, 290 ℃, 288 ℃, 288 ℃, 287 ℃, 287 ℃, spinning pressure is 80bar, and speed is 19.8m/min;
(3) after the supercooling moulding, forming temperature is 55 ℃ to melt through extruding;
(4) adopt two sections drawing-offs, 88 ℃ of hot water drawing temperatures, draft speed are 62m/min, 3.0 times of draw ratios, and 180 ℃ of hot-air drawing temperatures, draft speed are 105.3m/min, 1.5 times of draw ratios;
(5) hot-air typing, 210 ℃ of temperature, speed are 100m/min.Be wound into silk by oiling, promptly produce Φ 0.20mm warp monofilament, its physical index is respectively Φ 0.20 ± 0.03mm, fracture strength 65.6CN/tex, and elongation at break 18.5%, dry-hot shrinkage (180 ℃ * 10min) be 10.7%.
This monofilament is applied to Weaving paper-making net warp, and its use amount accounts for whole more than 1/3rd of used monofilament that throw the net; Be used for the mine net, its use amount accounts for whole more than 1/2nd of used monofilament that throw the net; The warp that is used for the conveyer belt spacer screen, its use amount accounts for more than 1/2nd of felt spacer screen; The spacer screen that is used for felt, its use amount accounts for more than 1/5th of felt spacer screen; The reinforcement that is used for screen pack, its use amount account for whole more than 1/5th of used monofilament that throw the net.
Claims (3)
1. the manufacture method of a high-viscosity polyester monofilament comprises the processing step of following order:
(1) drying is that the polyester slice of the polyethylene terephthalate of inherent viscosity 〉=0.9 is dried to moisture＜50ppm with main component;
(2) be that 10～12 spinnerets melt extrudes spinning through draw ratio L/D, spinning temperature is 280 ± 5 ℃, and 295 ± 5 ℃, 293 ± 5 ℃, 292 ± 5 ℃, 292 ± 5 ℃, 292 ± 5 ℃, 290 ± 5 ℃, spinning pressure is 80-90bar;
(3) cooling forming, forming temperature are 55～60 ℃;
(4) two sections drawing-offs, 2.8～3.2 times of one section hot water draw ratios, drawing temperature is 85～90 ℃, 1.5～1.75 times of two sections hot-air draw ratios, drawing temperature is 180～185 ℃;
(5) hot-air typing, temperature is 225～230 ℃.
2. the manufacture method of high-viscosity polyester monofilament according to claim 1 is characterized in that: described spinnerets spinneret orifice diameter is 0.8～2.0mm, and draw ratio L/D is 10～12.
3. the manufacture method of high-viscosity polyester monofilament according to claim 1 is characterized in that: described spinnerets spinneret orifice cross section is circle, square, rectangle, ellipse or trilobal, and draw ratio L/D is 10～12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03140334 CN1220801C (en) | 2003-08-29 | 2003-08-29 | High viscosity poly ester monofilament and its producing method and use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03140334 CN1220801C (en) | 2003-08-29 | 2003-08-29 | High viscosity poly ester monofilament and its producing method and use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1492086A CN1492086A (en) | 2004-04-28 |
| CN1220801C true CN1220801C (en) | 2005-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03140334 Expired - Fee Related CN1220801C (en) | 2003-08-29 | 2003-08-29 | High viscosity poly ester monofilament and its producing method and use |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2896445B1 (en) * | 2006-01-25 | 2010-08-20 | Arkema | FLEXIBLE FILM BASED ON FLUORINATED POLYMER |
| CN101914818A (en) * | 2010-08-09 | 2010-12-15 | 陈晓美 | Method for manufacturing wear-resistant high-strength polyester fibers |
| CN102251315B (en) * | 2011-08-12 | 2013-08-21 | 江门市新会区新华胶丝厂 | Method for preparing novel wear-resisting polyester monofilaments for papermaking net |
| CN103290716A (en) * | 2013-05-20 | 2013-09-11 | 安徽太平洋特种网业有限公司 | Process for manufacturing improved pulp net |
| CN103603069B (en) * | 2013-10-22 | 2017-10-13 | 无锡金通化纤有限公司 | A kind of low-loss high tenacity polyester fiber screen cloth monofilament and its production method |
| CN104328517B (en) * | 2014-11-17 | 2017-04-26 | 厦门厦迪亚斯环保过滤技术有限公司 | Manufacturing process for PA6 modified monofilaments |
| CN105220257B (en) * | 2015-09-14 | 2017-11-07 | 厦门厦迪亚斯环保过滤技术有限公司 | The modification monofilament and the preparation method of industrial filter screen of resistive connection crystalline substance and high-wearing feature |
| CN113774498A (en) * | 2021-10-09 | 2021-12-10 | 晋江市永信达织造制衣有限公司 | Production method of high-strength wear-resistant polyester filament yarn |
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- 2003-08-29 CN CN 03140334 patent/CN1220801C/en not_active Expired - Fee Related
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| CN1492086A (en) | 2004-04-28 |
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Owner name: JIANGMEN XINHUI XINHUA MONOFILAMENT FACTORY Free format text: FORMER OWNER: XINHUI DISTRICT INDUSTRIAL COLLOIDAL YARN FACTORY CO., LTD., JIANGMEN CITY Effective date: 20110630 |
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Free format text: CORRECT: ADDRESS; FROM: 529100 NO. 70, PENGJIAWAN, HUICHENG, XINHUI DISTRICT, JIANGMEN CITY, GUANGDONG PROVINCE TO: 529100 NO. 51, ZHENXING 2ND ROAD, HUICHENG, XINHUI DISTRICT, JIANGMEN CITY, GUANGDONG PROVINCE |
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Effective date of registration: 20110630 Address after: 529100, No. two, No. 51, Zhenxing Road, Xinhui District, Jiangmen, Guangdong Patentee after: Jiangmen Xinhui District Xinhua Plastic Wire Plant Address before: Xinhui District, Guangdong city of Jiangmen province 529100 city Pengjiawan No. 70 Patentee before: Xinhui District Industrial Colloidal Yarn Factory Co., Ltd., Jiangmen City |
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Address after: 529100 No. 25 Bei'an North Road, Xinhui District, Jiangmen, Guangdong Patentee after: Jiangmen Xinhui Xinhua Xinhua silk factory Co., Ltd. Address before: 529100 51 revitalization two road, Huicheng District, Jiangmen, Guangdong Patentee before: Jiangmen Xinhui District Xinhua Plastic Wire Plant |
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Granted publication date: 20050928 Termination date: 20200829 |
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| CF01 | Termination of patent right due to non-payment of annual fee |