WO2012027935A1 - 利用聚酯废料生产涤纶纤维的方法 - Google Patents
利用聚酯废料生产涤纶纤维的方法 Download PDFInfo
- Publication number
- WO2012027935A1 WO2012027935A1 PCT/CN2010/079677 CN2010079677W WO2012027935A1 WO 2012027935 A1 WO2012027935 A1 WO 2012027935A1 CN 2010079677 W CN2010079677 W CN 2010079677W WO 2012027935 A1 WO2012027935 A1 WO 2012027935A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polyester
- melt
- spinning
- producing
- fiber
- Prior art date
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Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Definitions
- the invention relates to the field of polyester waste recycled polyester spinning technology, in particular to a method for producing polyester fiber by using polyester waste. Background technique
- Polyester spinning technology is currently widely used. At present, the technology used by domestic reclaimed polyester spinning manufacturers is mainly similar to the process and production technology of conventional polyester slicing. Usually, the recycled polyester bottles are crushed and cleaned to obtain polyester flakes, which are continuously dried. Melt and filtration process to produce polyester staple fiber. Its products can be roughly divided into two categories, one is cotton type, mainly used to produce some low-grade fabrics such as blended towels; the other is filling materials, mainly used for filling materials for furniture and toys. Overall, its product quality is low and the quality is poor.
- the prior art generally has defects such as large degradation of the melt during the melting process, resulting in poor uniformity of the melt viscosity, resulting in many problems such as short cycle of the component, high consumption of raw materials, low yield of the raw materials, and the like. The quality of silk products is still low.
- a method for producing polyester fiber using polyester waste according to the present invention comprises the following steps:
- Step 1 The dried polyester waste is sent to a screw extruder and extruded into a polyester melt; Step 2.
- the polyester melt is subjected to bipolar filtration to remove impurities;
- Step 3 Perform a polymer polymerization chemical reaction on the polyester melt, homogenize the molecular weight of the polymer, and increase the viscosity of the polyester;
- Step 4 Finely filtering the thickened melt by using a melt fine filter
- Step 5 transporting the finely filtered melt to a spinning system
- Step 6 The melt is fed into the spinning box for metering and spinning, and the filament is cooled and solidified;
- Step 7 Winding into a wire.
- the step 7 is specifically: forming a polyester pre-oriented yarn P0Y product by high-speed winding; or using a one-step stretch winding to form a polyester full drawn yarn FDY product; Or use one-step multi-stage drawing heat setting to make polyester industrial yarn HTY products; or use stretching, shaping, crimping and cutting to make polyester high-strength low-stretch short fiber products.
- the polymerization reaction of the polyester melt is carried out under the conditions of a vacuum of 70 Pa to 100 Pa and a temperature of 280 ° C to 295 ° C.
- the technical solution provided by the invention has the following beneficial effects:
- the melt viscosity can be in the range of 0. 63-0. 90dL / g, according to the product needs, the method of the present invention can be used to improve the quality of the regenerated polyester spinning melt.
- the arbitrarily, the uniformity of the melt viscosity is greatly improved, and it can reach M 0.001.
- the method for producing a polyester fiber of the present invention can improve the spinnability of the spinning.
- the spinning method of the present invention has a plurality of filtration processes, so that the regenerated polyester has less impurities and uniform viscosity, so that there are fewer breaks in production, high fullness, high yield, and low loss.
- the method for producing polyester fiber by using the polyester waste of the invention has good quality products and high added value of products, such as polyester industrial yarn HTY and the like.
- the method for producing polyester fiber by using the polyester waste of the invention can increase the service life of the equipment and increase the service life of the prior art equipment components by 5-10 times. This will directly increase production efficiency and reduce production costs.
- the method for producing polyester fiber by using polyester waste by the invention has low cost and good quality, and has a price advantage in comparison with similar products in the market competition, which can bring considerable economic benefits to the enterprise.
- the present invention will be further described in detail below by using a new process of bottle-recycled polyester industrial yarn HTY as an example.
- the first step the washed and dried bottle piece (water content 30 PPM), enters a specially designed screw extruder, and the bottle piece is melt-extruded into a polyester melt at a temperature of 260-295 °C.
- the above polyester melt is subjected to bipolar filtration to remove impurities.
- the primary melt is passed through a two-stage filter with a booster pump to filter out impurities in the flakes: one with a filtration accuracy of 50 ⁇ and a second filtration with a precision of 35 ⁇ .
- the screw control is controlled by a pressure filter system with a primary filter, and the control pressure is 10. 0-12. OMPa, - control of the booster pump between the two filters, controlled by a homogenous viscosity-increasing reactor level control system .
- the polyester melt is subjected to a polymer polymerization chemical reaction, the molecular weight distribution of the polyester is homogenized, and the viscosity of the polyester is increased.
- the bipolar filtered polyester melt is introduced into a homopolymerization thickening reactor, and the polyester melt is polymerized in a homopolymerization thickening reactor at a vacuum of 70 Pa to 100 Pa and a temperature of 280 to 295 ° C.
- the chemical reaction homogenizes the molecular weight distribution of the polyester while thickening the melt to a certain viscosity.
- the specific viscosity-increasing degree can be controlled between 0. 63dL/g and 0.9dL/g according to the process requirements.
- the homopolymerized viscosity-increasing reflector used in this step is a specially designed device consisting of a cylinder and a cage-type membrane.
- the material adheres to the mesh disk as the cage rotates, providing a sufficient interface for the EG to be produced by the polycondensation reaction, thereby increasing the reaction speed.
- the material advances by the liquid level difference and the taper of the cage frame, and is always in a flat push state. Under the action of the cage-type stirring film, the molecular chain grows evenly, and finally reaches the viscosity requirement of the polyester industrial yarn.
- the thickened melt is finely filtered using a melt fine filter.
- the output pump is output to the melt fine filter for re-filtration, and the filtration precision is up to
- the qualified melt is pressurized by a gear pump to 12. 0 MPa to 18.0 MPa, and directly conveyed to the spinning through a melt pipe (the temperature of the pipe with heat medium is 270 ° C to 285 ° C). system. Melting in the spinning box A set of static mixers is provided at the inlet of the body to further homogenize the melt mass.
- the melt is extruded in a spinning box through a metering pump, a component and a spinneret, and is cooled and solidified under a blowing condition of 20 ° C to 25 ° C.
- the temperature of the cabinet is controlled at 285 ° C to 295 ° C, and the pressure of the module is controlled at 15. 0 MPa to 20. OMPa.
- a slow cooling heater is installed in the lower part of the box assembly to prevent the generation of primary fibers.
- the sheath core structure affects the smooth progress of the subsequent stretch.
- the seventh step is winding into a wire.
- the primary fiber After the primary fiber is oiled, it enters a set of industrial wire drafting winder with four pairs of hot drawing rolls for multi-stage drawing and heat setting.
- the temperature of each stage is controlled at 10CTC to 220°C.
- the speed is controlled from 600 m/min to 3200 m/min.
- After the network it is synchronously wound at high speed into a polyester industrial yarn.
- the 1110dtex/192f polyester medium-strength yarn produced by the above process has a strength of 0cn/dtex and an elongation of 16-18%.
- Different polyester fibers can be wound up according to the different process requirements of different products. If high-speed winding is used, P0Y products can be made; FDY products can be made by one-step stretching and winding; HTY products can be made by one-step multi-stage drawing heat setting; and stretching, shaping, curling and cutting can be used. High strength and low elongation short fiber products.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Sustainable Development (AREA)
- Medicinal Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2012147300/05A RU2531296C1 (ru) | 2010-09-02 | 2010-12-10 | Способ получения териленового волокна из полиэфирных отходов |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201010270599A CN101956240B (zh) | 2010-09-02 | 2010-09-02 | 利用聚酯废料生产涤纶纤维的方法 |
CN201010270599.2 | 2010-09-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012027935A1 true WO2012027935A1 (zh) | 2012-03-08 |
Family
ID=43483820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2010/079677 WO2012027935A1 (zh) | 2010-09-02 | 2010-12-10 | 利用聚酯废料生产涤纶纤维的方法 |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN101956240B (zh) |
RU (1) | RU2531296C1 (zh) |
WO (1) | WO2012027935A1 (zh) |
Cited By (10)
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CN102677196A (zh) * | 2012-06-10 | 2012-09-19 | 广东秋盛资源股份有限公司 | 一种再生聚酯纤维的纺丝装置 |
CN106149075A (zh) * | 2016-08-25 | 2016-11-23 | 宁波大发化纤有限公司 | 一种以回收聚酯原料制备的双组份并列复合纤维 |
CN110791824A (zh) * | 2018-08-01 | 2020-02-14 | 黄小宁 | 废pet聚酯循环再生产品生产线 |
CN112458566A (zh) * | 2020-12-09 | 2021-03-09 | 贵州南阳彩纤有限公司 | 一种抗菌型涤纶短纤维的制造方法 |
EP3835346A1 (en) * | 2019-12-13 | 2021-06-16 | Tai Su Energy Technology Co., Ltd. | A method to increase intrinsic viscosity of recycling polyester waste |
EP3835347A1 (en) * | 2019-12-13 | 2021-06-16 | Tai Su Energy Technology Co., Ltd. | A device to increase intrinsic viscosity of recycling polyester waste |
CN113668077A (zh) * | 2021-09-08 | 2021-11-19 | 浙江佳人新材料有限公司 | 一种再生fdy环保有光细旦纤维的生产方法 |
CN113818122A (zh) * | 2021-06-14 | 2021-12-21 | 吴江欧阳织造有限公司 | 涤纶长丝交织多功能面料的生产工艺 |
CN114016159A (zh) * | 2021-11-15 | 2022-02-08 | 扬州天富龙科技纤维有限公司 | 一种含氨纶的涤纶泡料纺深色细旦涤纶短纤及其制备方法 |
CN114561715A (zh) * | 2022-03-21 | 2022-05-31 | 扬州天富龙科技纤维有限公司 | 一种有色细旦涤纶纤维的制备方法 |
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CN102746498B (zh) * | 2012-07-17 | 2014-03-26 | 龙福环能科技股份有限公司 | 一种增加回收聚酯瓶片料熔体粘度的方法 |
CN102731760B (zh) * | 2012-07-17 | 2014-03-26 | 龙福环能科技股份有限公司 | 一种将回收聚酯瓶片料熔体醇解后再聚合的方法 |
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CN106283227A (zh) * | 2016-08-15 | 2017-01-04 | 宁波大发化纤有限公司 | 一种微醇解废聚酯纺织品原料进行聚酯纺丝的方法 |
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- 2010-12-10 RU RU2012147300/05A patent/RU2531296C1/ru active
- 2010-12-10 WO PCT/CN2010/079677 patent/WO2012027935A1/zh active Application Filing
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102677196A (zh) * | 2012-06-10 | 2012-09-19 | 广东秋盛资源股份有限公司 | 一种再生聚酯纤维的纺丝装置 |
CN106149075A (zh) * | 2016-08-25 | 2016-11-23 | 宁波大发化纤有限公司 | 一种以回收聚酯原料制备的双组份并列复合纤维 |
CN110791824A (zh) * | 2018-08-01 | 2020-02-14 | 黄小宁 | 废pet聚酯循环再生产品生产线 |
EP3835346A1 (en) * | 2019-12-13 | 2021-06-16 | Tai Su Energy Technology Co., Ltd. | A method to increase intrinsic viscosity of recycling polyester waste |
EP3835347A1 (en) * | 2019-12-13 | 2021-06-16 | Tai Su Energy Technology Co., Ltd. | A device to increase intrinsic viscosity of recycling polyester waste |
CN112458566A (zh) * | 2020-12-09 | 2021-03-09 | 贵州南阳彩纤有限公司 | 一种抗菌型涤纶短纤维的制造方法 |
CN113818122A (zh) * | 2021-06-14 | 2021-12-21 | 吴江欧阳织造有限公司 | 涤纶长丝交织多功能面料的生产工艺 |
CN113668077A (zh) * | 2021-09-08 | 2021-11-19 | 浙江佳人新材料有限公司 | 一种再生fdy环保有光细旦纤维的生产方法 |
CN114016159A (zh) * | 2021-11-15 | 2022-02-08 | 扬州天富龙科技纤维有限公司 | 一种含氨纶的涤纶泡料纺深色细旦涤纶短纤及其制备方法 |
CN114561715A (zh) * | 2022-03-21 | 2022-05-31 | 扬州天富龙科技纤维有限公司 | 一种有色细旦涤纶纤维的制备方法 |
Also Published As
Publication number | Publication date |
---|---|
RU2531296C1 (ru) | 2014-10-20 |
CN101956240A (zh) | 2011-01-26 |
CN101956240B (zh) | 2012-10-03 |
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