WO2022047843A1 - Technological method for regenerating flame retardant polyester fiber by recycling polyester fiber - Google Patents

Technological method for regenerating flame retardant polyester fiber by recycling polyester fiber Download PDF

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Publication number
WO2022047843A1
WO2022047843A1 PCT/CN2020/116691 CN2020116691W WO2022047843A1 WO 2022047843 A1 WO2022047843 A1 WO 2022047843A1 CN 2020116691 W CN2020116691 W CN 2020116691W WO 2022047843 A1 WO2022047843 A1 WO 2022047843A1
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Prior art keywords
polyester fiber
fabric
flame
fiber
filaments
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PCT/CN2020/116691
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French (fr)
Chinese (zh)
Inventor
程贤生
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苏州贤辉新纺织科技有限公司
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Publication of WO2022047843A1 publication Critical patent/WO2022047843A1/en

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/04—Melting filament-forming substances
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G11/00—Disintegrating fibre-containing articles to obtain fibres for re-use
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G11/00—Disintegrating fibre-containing articles to obtain fibres for re-use
    • D01G11/04—Opening rags to obtain fibres for re-use
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • 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
    • Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use

Definitions

  • the present application relates to a process method for regenerating flame-retardant polyester fibers, in particular to a process method for regenerating flame-retardant polyester fibers by using recycled polyester fibers.
  • Flame-retardant fiber also known as flame-retardant fiber, refers to the fiber that only smolders in the flame, does not generate flame itself, leaves the flame, and smolders and extinguishes itself. It is widely used in clothing, home furnishing, decoration, non-woven fabrics and fillers. Compared with ordinary fibers, the flammability of flame retardant fibers is significantly reduced, the burning rate is significantly slowed down during the combustion process, and it can quickly self-extinguish after leaving the fire source, and less toxic fumes are released.
  • polyester fiber fabrics are mixed with cotton and linen fibers, which is troublesome to recycle. Therefore, in view of the above problems, a process method for regenerating flame-retardant polyester fibers by using recycled polyester fibers is proposed.
  • a process method for regenerating flame-retardant polyester fibers by using recycled polyester fibers, the coating method of the large-gauge warp knitted fabric includes the following steps:
  • polyester fiber staple filaments after cleaning and drying are melted and spinned, and blow molding is performed after spinning;
  • the waste fabrics are cleaned, and the fabrics are cleaned with an alkaline cleaning solution mixed with clean water, soaked for 30-60 minutes before cleaning, and at the same time, the foreign objects, oil and dust on the surface of the waste fabrics are removed with a cleaning brush. After thorough treatment, the treated waste fabrics are thoroughly dried with a hot air blower.
  • the waste fabric in the step (1) can be polyester fiber fabric, polyester fiber and cotton fiber or hemp fiber blended cotton fabric, and the products of waste fabric include fabric scraps, curtains, table boards and bed sheets.
  • a fabric cutting machine is used to cut the fabric into strips, the length of the strip is between 20-40cm, the width of the strip is between 5-10cm, and then the The strip fabric is crushed by a fabric crusher, and the fabric is crushed into short filaments, and the length of the short filaments is between 5-10cm.
  • the broken short filaments are impregnated with a cupro ammonia solution, the time length of the impregnation is 1-2 h, and the impregnation temperature is 25-35 degrees Celsius.
  • the cotton fiber or hemp fiber reacts, dissolves the cotton fiber or hemp fiber, and then filters the dissolved filaments. After filtering, they are immersed in clean water for cleaning. After cleaning, they are rinsed again. Blow dry.
  • the dried short filaments are fed into a screw extruder for heating and melting, and the molten short filaments are filtered through a spinning box and distributed by a metering pump, and then spun through a spinneret to form filaments.
  • the temperature of the screw and spinning box of the screw extruder are both 270°C-280°C, the spinneret aperture is 0.5mm, The number of holes is 300.
  • the sprayed filaments are cooled and dried by cold air, the temperature of the cold air is 25°C-30°C, and the wind speed of the cold air is 4.5m/s-5.5m/s.
  • the polyester fiber filament after cooling and forming is sprayed on the surface of the filament with a sprayer, and the solution sprayed by the sprayer is a flame retardant solution, and the flame retardant solution is
  • the polyester fiber filament is rotated repeatedly, so that the surface of the polyester fiber filament is fully dissolved and contacted with the flame retardant, and the sprayed polyester fiber filament is dried with a hot air blower.
  • the flame retardant coating on the surface of the polyester fiber filament after being sprayed and dried is detected, and the thickness and covering area of the flame retardant coating are detected.
  • polyester fiber filaments that fail to pass the inspection in the step (5) should be processed again by repeating the step (5), and the polyester fiber filaments after the reprocessing treatment should be tested again.
  • polyester fiber filaments dried in the step (6) are combed, twisted to synthesize yarns after carding, cut and formed after twisting, and finally wound up.
  • the present application provides a process method for regenerating flame-retardant polyester fibers by using recycled polyester fibers.
  • FIG. 1 is a flow chart of this application.
  • the terms “installed”, “set up”, “provided with”, “connected”, “connected”, “socketed” should be construed broadly. For example, it may be a fixed connection, a detachable connection, or a unitary structure; it may be a mechanical connection, or an electrical connection; it may be directly connected, or indirectly connected through an intermediary, or between two devices, elements, or components. internal communication.
  • installed may be a fixed connection, a detachable connection, or a unitary structure; it may be a mechanical connection, or an electrical connection; it may be directly connected, or indirectly connected through an intermediary, or between two devices, elements, or components. internal communication.
  • a process method for regenerating flame-retardant polyester fibers by using recycled polyester fibers, the coating method of the large-gauge warp knitted fabric includes the following steps:
  • polyester fiber staple filaments after cleaning and drying are melted and spinned, and blow molding is performed after spinning;
  • the waste fabrics are cleaned, and the fabrics are cleaned with an alkaline cleaning solution mixed with clean water, soaked for 30-60 minutes before cleaning, and at the same time, the foreign objects, oil and dust on the surface of the waste fabrics are removed with a cleaning brush. After thorough treatment, the treated waste fabrics are thoroughly dried with a hot air blower.
  • the waste fabric in the step (1) can be polyester fiber fabric, polyester fiber and cotton fiber or hemp fiber blended cotton fabric, and the products of waste fabric include fabric scraps, curtains, table boards and bed sheets.
  • a fabric cutting machine is used to cut the fabric into strips, the length of the strip is between 20-40cm, the width of the strip is between 5-10cm, and then the The strip fabric is crushed by a fabric crusher, and the fabric is crushed into short filaments, and the length of the short filaments is between 5-10cm.
  • the broken short filaments are impregnated with a cupro ammonia solution, the time length of the impregnation is 1-2 h, and the impregnation temperature is 25-35 degrees Celsius.
  • the cotton fiber or hemp fiber reacts, dissolves the cotton fiber or hemp fiber, and then filters the dissolved filaments. After filtering, they are immersed in clean water for cleaning. After cleaning, they are rinsed again. Blow dry.
  • the dried short filaments are fed into a screw extruder for heating and melting, and the molten short filaments are filtered through a spinning box and distributed by a metering pump, and then spun through a spinneret to form filaments.
  • the temperature of the screw and spinning box of the screw extruder are both 270°C-280°C, the spinneret aperture is 0.5mm, The number of holes is 300.
  • the sprayed filaments are cooled and dried by cold air, the temperature of the cold air is 25°C-30°C, and the wind speed of the cold air is 4.5m/s-5.5m/s.
  • the polyester fiber filament after cooling and forming is sprayed on the surface of the filament with a sprayer, and the solution sprayed by the sprayer is a flame retardant solution, and the flame retardant solution is
  • the polyester fiber filament is rotated repeatedly, so that the surface of the polyester fiber filament is fully dissolved and contacted with the flame retardant, and the sprayed polyester fiber filament is dried with a hot air blower.
  • the flame retardant coating on the surface of the polyester fiber filament after being sprayed and dried is detected, and the thickness and covering area of the flame retardant coating are detected.
  • polyester fiber filaments that fail to pass the inspection in the step (5) should be processed again by repeating the step (5), and the polyester fiber filaments after the reprocessing treatment should be tested again.
  • polyester fiber filaments dried in the step (6) are combed, twisted to synthesize yarns after carding, cut and formed after twisting, and finally wound up.
  • the above method is suitable for a process method for reclaiming flame-retardant polyester fibers from polyester fiber fabrics with a relatively high content of cotton and hemp fibers.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • a process method for regenerating flame-retardant polyester fibers by using recycled polyester fibers, the coating method of the large-gauge warp knitted fabric includes the following steps:
  • polyester fiber staple filaments after cleaning and drying are melted and spinned, and blow molding is performed after spinning;
  • the waste fabrics are cleaned, and the fabrics are cleaned with an alkaline cleaning solution in proportion to clean water, soaked for 20-40 minutes before cleaning, and at the same time, the foreign objects, oil and dust on the surface of the waste fabrics are removed with a cleaning brush. After thorough treatment, the treated waste fabrics are thoroughly dried with a hot air blower.
  • the waste fabric in the step (1) can be polyester fiber fabric, polyester fiber and cotton fiber or hemp fiber blended cotton fabric, and the products of waste fabric include fabric scraps, curtains, table boards and bed sheets.
  • a fabric cutting machine is used to cut the fabric into strips, the length of the strip is between 20-40cm, the width of the strip is between 5-10cm, and then the The strip fabric is crushed by a fabric crusher, and the fabric is crushed into short filaments, and the length of the short filaments is between 5-10cm.
  • the broken short filaments are impregnated with a cupro ammonia solution, the impregnation time is 0.5-1 h, and the impregnation temperature is 25-35 degrees Celsius.
  • the cotton fiber or hemp fiber reacts, dissolves the cotton fiber or hemp fiber, and then filters the dissolved filaments. After filtering, they are immersed in clean water for cleaning. After cleaning, they are rinsed again. Blow dry.
  • the dried short filaments are fed into a screw extruder for heating and melting, and the molten short filaments are filtered through a spinning box and distributed by a metering pump, and then spun through a spinneret to form filaments.
  • the temperature of the screw and spinning box of the screw extruder are both 270°C-280°C, the spinneret aperture is 0.5mm, The number of holes is 300.
  • the sprayed filaments are cooled and dried by cold air, the temperature of the cold air is 25°C-30°C, and the wind speed of the cold air is 4.5m/s-5.5m/s.
  • the polyester fiber filament after cooling and forming is sprayed on the surface of the filament with a sprayer, and the solution sprayed by the sprayer is a flame retardant solution, and the flame retardant solution is
  • the polyester fiber filament is rotated repeatedly, so that the surface of the polyester fiber filament is fully dissolved and contacted with the flame retardant, and the sprayed polyester fiber filament is dried with a hot air blower.
  • the flame retardant coating on the surface of the polyester fiber filament after being sprayed and dried is detected, and the thickness and covering area of the flame retardant coating are detected.
  • polyester fiber filaments that fail to pass the inspection in the step (5) should be processed again by repeating the step (5), and the polyester fiber filaments after the reprocessing treatment should be tested again.
  • polyester fiber filaments dried in the step (6) are combed, twisted to synthesize yarns after carding, cut and formed after twisting, and finally wound up.
  • the above method is suitable for a process method for reclaiming flame-retardant polyester fibers from polyester fiber fabrics with a relatively high content of cotton and hemp fibers.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Artificial Filaments (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

Disclosed in the present application is a technological method for regenerating a flame retardant polyester fiber by recycling a polyester fiber, comprising: performing thorough cleaning on a waste fabric, then drying same so as to complete a cleaning work of a waste polyester fiber fabric; cutting the cleaned fabric, then crushing the polyester fiber fabric into short fiber threads; immersing, by using an organic solvent, the short fiber threads obtained by crushing, dissolving short cotton and hemp fiber threads mixed inside the short fiber threads, and flushing and drying separated short polyester fiber threads again; performing melt spinning on the cleaned and dried short polyester fiber threads, and performing air-blowing forming on same after spinning; and spaying a flame retardant agent on formed polyester fiber filaments, and drying same after spraying the flame retardant agent, such that the flame retardant agent adheres to the surface of the polyester fiber filaments. The present application provides the technological method for regenerating a flame retardant polyester fiber by recycling a polyester fiber.

Description

一种采用回收聚酯纤维再生阻燃聚酯纤维的工艺方法A process method for regenerating flame-retardant polyester fibers by using recycled polyester fibers 技术领域technical field
本申请涉及一种再生阻燃聚酯纤维的工艺方法，具体是一种采用回收聚酯纤维再生阻燃聚酯纤维的工艺方法。 The present application relates to a process method for regenerating flame-retardant polyester fibers, in particular to a process method for regenerating flame-retardant polyester fibers by using recycled polyester fibers.
背景技术Background technique
难燃纤维也称阻燃纤维，是指在火焰中仅阴燃，本身不发生火焰，离开火焰，阴燃自行熄灭的纤维，广泛应用于服装、家居、装饰、无纺织物及填充物等。阻燃纤维与普通纤维相比可燃性显著降低，在燃烧过程中燃烧速率眀显减缓，离开火源后能迅速自熄，且较少释放有毒烟雾。Flame-retardant fiber, also known as flame-retardant fiber, refers to the fiber that only smolders in the flame, does not generate flame itself, leaves the flame, and smolders and extinguishes itself. It is widely used in clothing, home furnishing, decoration, non-woven fabrics and fillers. Compared with ordinary fibers, the flammability of flame retardant fibers is significantly reduced, the burning rate is significantly slowed down during the combustion process, and it can quickly self-extinguish after leaving the fire source, and less toxic fumes are released.
目前对废旧的聚酯纤维面料没有合适的回收方法，通常聚酯纤维面料内部混合有棉麻纤维，回收麻烦。因此，针对上述问题提出一种采用回收聚酯纤维再生阻燃聚酯纤维的工艺方法。At present, there is no suitable recycling method for waste polyester fiber fabrics. Usually, polyester fiber fabrics are mixed with cotton and linen fibers, which is troublesome to recycle. Therefore, in view of the above problems, a process method for regenerating flame-retardant polyester fibers by using recycled polyester fibers is proposed.
技术解决方案technical solutions
一种采用回收聚酯纤维再生阻燃聚酯纤维的工艺方法，所述大隔距经编织物的涂层方法包括如下步骤：A process method for regenerating flame-retardant polyester fibers by using recycled polyester fibers, the coating method of the large-gauge warp knitted fabric includes the following steps:
（1）对废旧的面料进行彻底清洁，清洁后进行烘干，完成对废旧聚酯纤维面料的清洁工作；(1) Thoroughly clean the waste fabrics, dry them after cleaning, and complete the cleaning of waste polyester fabrics;
（2）对清洁后的面料进行切割，切割后进行破碎，将聚酯纤维面料破碎成为短纤维丝；(2) Cut the cleaned fabric, crush it after cutting, and crush the polyester fiber fabric into short fiber filaments;
（3）对破碎后的短纤维丝使用有机溶剂进行浸渍，将纤维短丝内部混合的棉麻纤维短丝进行溶解，将分离出聚酯纤维短丝进行再次冲洗烘干；(3) Impregnating the broken staple fibers with an organic solvent, dissolving the cotton and hemp fiber staples mixed inside the staple fibers, and washing and drying the separated polyester staple fibers again;
（4）将清洗烘干后的聚酯纤维短丝进行熔融喷丝，喷丝后进行吹风成型；(4) The polyester fiber staple filaments after cleaning and drying are melted and spinned, and blow molding is performed after spinning;
（5）将成型后的聚酯纤维长丝进行喷涂阻燃剂，喷涂阻燃剂后进行烘干，使得阻燃剂附着在聚酯纤维长丝的表面；(5) Spray the formed polyester fiber filament with a flame retardant, and then dry it after spraying the flame retardant, so that the flame retardant adheres to the surface of the polyester fiber filament;
（6）将阻燃处理后的聚酯纤维长丝进行梳理整理，捻合成线，捻合后进行裁剪整理，最后收卷收纳。(6) Carding and finishing the polyester fiber filament after flame retardant treatment, twisting to synthesize yarn, cutting and finishing after twisting, and finally winding for storage.
进一步地，所述步骤（1）中对废旧面料进行清理，使用碱性清洁液配比清水对面料进行清洁，清洁前先浸泡30-60分钟，同时配合清洁刷将废旧面料表面的异物油污灰尘等进行彻底处理，将处理后的废旧面料使用热风机进行彻底烘干。Further, in the step (1), the waste fabrics are cleaned, and the fabrics are cleaned with an alkaline cleaning solution mixed with clean water, soaked for 30-60 minutes before cleaning, and at the same time, the foreign objects, oil and dust on the surface of the waste fabrics are removed with a cleaning brush. After thorough treatment, the treated waste fabrics are thoroughly dried with a hot air blower.
进一步地，所述步骤（1）中的废旧面料可以是聚酯纤维面料、聚酯纤维与棉纤维或是麻纤维混纺棉面料，废旧面料的制品包括面料边角料、窗帘、桌板以及床单。Further, the waste fabric in the step (1) can be polyester fiber fabric, polyester fiber and cotton fiber or hemp fiber blended cotton fabric, and the products of waste fabric include fabric scraps, curtains, table boards and bed sheets.
进一步地，所述步骤（2）中使用面料裁切机将面料裁切成条状物，条状物的长度为20-40cm之间，条状物的宽度为5-10cm之间，然后将条状面料使用面料粉碎机进行破碎，将面料破碎成为短丝，短丝的长度为5-10cm之间。Further, in the step (2), a fabric cutting machine is used to cut the fabric into strips, the length of the strip is between 20-40cm, the width of the strip is between 5-10cm, and then the The strip fabric is crushed by a fabric crusher, and the fabric is crushed into short filaments, and the length of the short filaments is between 5-10cm.
进一步地，所述步骤（3）中将破碎后的短丝使用铜氨溶液进行浸渍，浸渍的时间长度为1-2h，浸渍的温度为25-35摄氏度，通过铜氨溶液与短丝内部的棉纤维或是麻纤维进行反应，将棉纤维或是麻纤维溶解，然后将溶解后的短丝过滤，过滤后浸入清洁水中进行清洗，清洗后再次进行冲洗，冲洗后，使用热风机将短丝进行吹风烘干。Further, in the step (3), the broken short filaments are impregnated with a cupro ammonia solution, the time length of the impregnation is 1-2 h, and the impregnation temperature is 25-35 degrees Celsius. The cotton fiber or hemp fiber reacts, dissolves the cotton fiber or hemp fiber, and then filters the dissolved filaments. After filtering, they are immersed in clean water for cleaning. After cleaning, they are rinsed again. Blow dry.
进一步地，所述步骤（4）中，将干燥后的短丝送入螺杆挤压机加热熔融，熔融状态的短丝经过纺丝箱过滤和计量泵分配， 再通过喷丝板喷丝成丝束，螺杆挤压机的螺杆和纺丝箱箱体温度均为270°C-280°C， 喷丝板孔径为0.5mm，  孔数为300。将喷出的长丝经过冷风进行冷却干燥，冷风的温度为25°C-30°C，冷风的风速为4.5m/s-5.5m/s。Further, in the step (4), the dried short filaments are fed into a screw extruder for heating and melting, and the molten short filaments are filtered through a spinning box and distributed by a metering pump, and then spun through a spinneret to form filaments. The temperature of the screw and spinning box of the screw extruder are both 270°C-280°C, the spinneret aperture is 0.5mm, The number of holes is 300. The sprayed filaments are cooled and dried by cold air, the temperature of the cold air is 25°C-30°C, and the wind speed of the cold air is 4.5m/s-5.5m/s.
进一步地，所述步骤（5）中对冷却成型后的聚酯纤维长丝使用喷雾机对长丝表面进行喷涂，所述喷雾机喷洒的溶液为阻燃剂溶液，所述阻燃剂溶液为磷酸三丁酯溶液，喷涂时使得聚酯纤维长丝进行反复转动，使得聚酯纤维长丝的表面充分与阻燃剂溶解进行接触，喷涂后的聚酯纤维长丝使用热风机进行烘干。Further, in the step (5), the polyester fiber filament after cooling and forming is sprayed on the surface of the filament with a sprayer, and the solution sprayed by the sprayer is a flame retardant solution, and the flame retardant solution is When spraying the tributyl phosphate solution, the polyester fiber filament is rotated repeatedly, so that the surface of the polyester fiber filament is fully dissolved and contacted with the flame retardant, and the sprayed polyester fiber filament is dried with a hot air blower.
进一步地，所述步骤（5）中对喷涂烘干后的聚酯纤维长丝表面的阻燃剂涂层进行检测，对阻燃剂涂层的厚度，以及包覆面积进行检测。Further, in the step (5), the flame retardant coating on the surface of the polyester fiber filament after being sprayed and dried is detected, and the thickness and covering area of the flame retardant coating are detected.
进一步地，所述步骤（5）中检验不合格的聚酯纤维长丝应重新重复（5）步骤再次加工处理，将再次加工处理后的聚酯纤维长丝进行再次检测。Further, the polyester fiber filaments that fail to pass the inspection in the step (5) should be processed again by repeating the step (5), and the polyester fiber filaments after the reprocessing treatment should be tested again.
进一步地，所述步骤（6）中烘干后的聚酯纤维长丝进行梳理，梳理后进行捻合成线，捻合后进行裁剪成型，最后收卷。Further, the polyester fiber filaments dried in the step (6) are combed, twisted to synthesize yarns after carding, cut and formed after twisting, and finally wound up.
有益效果beneficial effect
本申请的有益效果是：本申请提供了一种采用回收聚酯纤维再生阻燃聚酯纤维的工艺方法。The beneficial effects of the present application are as follows: the present application provides a process method for regenerating flame-retardant polyester fibers by using recycled polyester fibers.
附图说明Description of drawings
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其它的附图。In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.
图1为本申请流程图。FIG. 1 is a flow chart of this application.
本发明的实施方式Embodiments of the present invention
为了使本技术领域的人员更好地理解本申请方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分的实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本申请保护的范围。In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only The embodiments are part of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present application.
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。It should be noted that the terms "first", "second", etc. in the description and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances for the embodiments of the application described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.
在本申请中，术语“上”、“下”、“左”、“右”、“前”、“后”、“顶”、“底”、“内”、“外”、“中”、“竖直”、“水平”、“横向”、“纵向”等指示的方位或位置关系为基于附图所示的方位或位置关系。这些术语主要是为了更好地描述本申请及其实施例，并非用于限定所指示的装置、元件或组成部分必须具有特定方位，或以特定方位进行构造和操作。In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", The orientation or positional relationship indicated by "vertical", "horizontal", "horizontal", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are primarily used to better describe the present application and its embodiments, and are not intended to limit the fact that the indicated device, element, or component must have a particular orientation, or be constructed and operated in a particular orientation.
并且，上述部分术语除了可以用于表示方位或位置关系以外，还可能用于表示其他含义，例如术语“上”在某些情况下也可能用于表示某种依附关系或连接关系。对于本领域普通技术人员而言，可以根据具体情况理解这些术语在本申请中的具体含义。In addition, some of the above-mentioned terms may be used to express other meanings besides orientation or positional relationship. For example, the term "on" may also be used to express a certain attachment or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to specific situations.
此外，术语“安装”、“设置”、“设有”、“连接”、“相连”、“套接”应做广义理解。例如，可以是固定连接，可拆卸连接，或整体式构造；可以是机械连接，或电连接；可以是直接相连，或者是通过中间媒介间接相连，又或者是两个装置、元件或组成部分之间内部的连通。对于本领域普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。Furthermore, the terms "installed", "set up", "provided with", "connected", "connected", "socketed" should be construed broadly. For example, it may be a fixed connection, a detachable connection, or a unitary structure; it may be a mechanical connection, or an electrical connection; it may be directly connected, or indirectly connected through an intermediary, or between two devices, elements, or components. internal communication. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
实施例一：Example 1:
一种采用回收聚酯纤维再生阻燃聚酯纤维的工艺方法，所述大隔距经编织物的涂层方法包括如下步骤：A process method for regenerating flame-retardant polyester fibers by using recycled polyester fibers, the coating method of the large-gauge warp knitted fabric includes the following steps:
（1）对废旧的面料进行彻底清洁，清洁后进行烘干，完成对废旧聚酯纤维面料的清洁工作；(1) Thoroughly clean the waste fabrics, dry them after cleaning, and complete the cleaning of waste polyester fabrics;
（2）对清洁后的面料进行切割，切割后进行破碎，将聚酯纤维面料破碎成为短纤维丝；(2) Cut the cleaned fabric, crush it after cutting, and crush the polyester fiber fabric into short fiber filaments;
（3）对破碎后的短纤维丝使用有机溶剂进行浸渍，将纤维短丝内部混合的棉麻纤维短丝进行溶解，将分离出聚酯纤维短丝进行再次冲洗烘干；(3) Impregnating the broken staple fibers with an organic solvent, dissolving the cotton and hemp fiber staples mixed inside the staple fibers, and washing and drying the separated polyester staple fibers again;
（4）将清洗烘干后的聚酯纤维短丝进行熔融喷丝，喷丝后进行吹风成型；(4) The polyester fiber staple filaments after cleaning and drying are melted and spinned, and blow molding is performed after spinning;
（5）将成型后的聚酯纤维长丝进行喷涂阻燃剂，喷涂阻燃剂后进行烘干，使得阻燃剂附着在聚酯纤维长丝的表面；(5) Spray the formed polyester fiber filament with a flame retardant, and then dry it after spraying the flame retardant, so that the flame retardant adheres to the surface of the polyester fiber filament;
（6）将阻燃处理后的聚酯纤维长丝进行梳理整理，捻合成线，捻合后进行裁剪整理，最后收卷收纳。(6) Carding and finishing the polyester fiber filament after flame retardant treatment, twisting to synthesize yarn, cutting and finishing after twisting, and finally winding for storage.
进一步地，所述步骤（1）中对废旧面料进行清理，使用碱性清洁液配比清水对面料进行清洁，清洁前先浸泡30-60分钟，同时配合清洁刷将废旧面料表面的异物油污灰尘等进行彻底处理，将处理后的废旧面料使用热风机进行彻底烘干。Further, in the step (1), the waste fabrics are cleaned, and the fabrics are cleaned with an alkaline cleaning solution mixed with clean water, soaked for 30-60 minutes before cleaning, and at the same time, the foreign objects, oil and dust on the surface of the waste fabrics are removed with a cleaning brush. After thorough treatment, the treated waste fabrics are thoroughly dried with a hot air blower.
进一步地，所述步骤（1）中的废旧面料可以是聚酯纤维面料、聚酯纤维与棉纤维或是麻纤维混纺棉面料，废旧面料的制品包括面料边角料、窗帘、桌板以及床单。Further, the waste fabric in the step (1) can be polyester fiber fabric, polyester fiber and cotton fiber or hemp fiber blended cotton fabric, and the products of waste fabric include fabric scraps, curtains, table boards and bed sheets.
进一步地，所述步骤（2）中使用面料裁切机将面料裁切成条状物，条状物的长度为20-40cm之间，条状物的宽度为5-10cm之间，然后将条状面料使用面料粉碎机进行破碎，将面料破碎成为短丝，短丝的长度为5-10cm之间。Further, in the step (2), a fabric cutting machine is used to cut the fabric into strips, the length of the strip is between 20-40cm, the width of the strip is between 5-10cm, and then the The strip fabric is crushed by a fabric crusher, and the fabric is crushed into short filaments, and the length of the short filaments is between 5-10cm.
进一步地，所述步骤（3）中将破碎后的短丝使用铜氨溶液进行浸渍，浸渍的时间长度为1-2h，浸渍的温度为25-35摄氏度，通过铜氨溶液与短丝内部的棉纤维或是麻纤维进行反应，将棉纤维或是麻纤维溶解，然后将溶解后的短丝过滤，过滤后浸入清洁水中进行清洗，清洗后再次进行冲洗，冲洗后，使用热风机将短丝进行吹风烘干。Further, in the step (3), the broken short filaments are impregnated with a cupro ammonia solution, the time length of the impregnation is 1-2 h, and the impregnation temperature is 25-35 degrees Celsius. The cotton fiber or hemp fiber reacts, dissolves the cotton fiber or hemp fiber, and then filters the dissolved filaments. After filtering, they are immersed in clean water for cleaning. After cleaning, they are rinsed again. Blow dry.
进一步地，所述步骤（4）中，将干燥后的短丝送入螺杆挤压机加热熔融，熔融状态的短丝经过纺丝箱过滤和计量泵分配， 再通过喷丝板喷丝成丝束，螺杆挤压机的螺杆和纺丝箱箱体温度均为270°C-280°C， 喷丝板孔径为0.5mm，  孔数为300。将喷出的长丝经过冷风进行冷却干燥，冷风的温度为25°C-30°C，冷风的风速为4.5m/s-5.5m/s。Further, in the step (4), the dried short filaments are fed into a screw extruder for heating and melting, and the molten short filaments are filtered through a spinning box and distributed by a metering pump, and then spun through a spinneret to form filaments. The temperature of the screw and spinning box of the screw extruder are both 270°C-280°C, the spinneret aperture is 0.5mm, The number of holes is 300. The sprayed filaments are cooled and dried by cold air, the temperature of the cold air is 25°C-30°C, and the wind speed of the cold air is 4.5m/s-5.5m/s.
进一步地，所述步骤（5）中对冷却成型后的聚酯纤维长丝使用喷雾机对长丝表面进行喷涂，所述喷雾机喷洒的溶液为阻燃剂溶液，所述阻燃剂溶液为磷酸三丁酯溶液，喷涂时使得聚酯纤维长丝进行反复转动，使得聚酯纤维长丝的表面充分与阻燃剂溶解进行接触，喷涂后的聚酯纤维长丝使用热风机进行烘干。Further, in the step (5), the polyester fiber filament after cooling and forming is sprayed on the surface of the filament with a sprayer, and the solution sprayed by the sprayer is a flame retardant solution, and the flame retardant solution is When spraying the tributyl phosphate solution, the polyester fiber filament is rotated repeatedly, so that the surface of the polyester fiber filament is fully dissolved and contacted with the flame retardant, and the sprayed polyester fiber filament is dried with a hot air blower.
进一步地，所述步骤（5）中对喷涂烘干后的聚酯纤维长丝表面的阻燃剂涂层进行检测，对阻燃剂涂层的厚度，以及包覆面积进行检测。Further, in the step (5), the flame retardant coating on the surface of the polyester fiber filament after being sprayed and dried is detected, and the thickness and covering area of the flame retardant coating are detected.
进一步地，所述步骤（5）中检验不合格的聚酯纤维长丝应重新重复（5）步骤再次加工处理，将再次加工处理后的聚酯纤维长丝进行再次检测。Further, the polyester fiber filaments that fail to pass the inspection in the step (5) should be processed again by repeating the step (5), and the polyester fiber filaments after the reprocessing treatment should be tested again.
进一步地，所述步骤（6）中烘干后的聚酯纤维长丝进行梳理，梳理后进行捻合成线，捻合后进行裁剪成型，最后收卷。Further, the polyester fiber filaments dried in the step (6) are combed, twisted to synthesize yarns after carding, cut and formed after twisting, and finally wound up.
上述方法适用于回收棉麻纤维含量较高的聚酯纤维面料再生阻燃聚酯纤维的工艺方法。The above method is suitable for a process method for reclaiming flame-retardant polyester fibers from polyester fiber fabrics with a relatively high content of cotton and hemp fibers.
实施例二：Embodiment 2:
一种采用回收聚酯纤维再生阻燃聚酯纤维的工艺方法，所述大隔距经编织物的涂层方法包括如下步骤：A process method for regenerating flame-retardant polyester fibers by using recycled polyester fibers, the coating method of the large-gauge warp knitted fabric includes the following steps:
（1）对废旧的面料进行彻底清洁，清洁后进行烘干，完成对废旧聚酯纤维面料的清洁工作；(1) Thoroughly clean the waste fabrics, dry them after cleaning, and complete the cleaning of waste polyester fabrics;
（2）对清洁后的面料进行切割，切割后进行破碎，将聚酯纤维面料破碎成为短纤维丝；(2) Cut the cleaned fabric, crush it after cutting, and crush the polyester fiber fabric into short fiber filaments;
（3）对破碎后的短纤维丝使用有机溶剂进行浸渍，将纤维短丝内部混合的棉麻纤维短丝进行溶解，将分离出聚酯纤维短丝进行再次冲洗烘干；(3) Impregnating the broken staple fibers with an organic solvent, dissolving the cotton and hemp fiber staples mixed inside the staple fibers, and washing and drying the separated polyester staple fibers again;
（4）将清洗烘干后的聚酯纤维短丝进行熔融喷丝，喷丝后进行吹风成型；(4) The polyester fiber staple filaments after cleaning and drying are melted and spinned, and blow molding is performed after spinning;
（5）将成型后的聚酯纤维长丝进行喷涂阻燃剂，喷涂阻燃剂后进行烘干，使得阻燃剂附着在聚酯纤维长丝的表面；(5) Spray the formed polyester fiber filament with a flame retardant, and then dry it after spraying the flame retardant, so that the flame retardant adheres to the surface of the polyester fiber filament;
（6）将阻燃处理后的聚酯纤维长丝进行梳理整理，捻合成线，捻合后进行裁剪整理，最后收卷收纳。(6) Carding and finishing the polyester fiber filament after flame retardant treatment, twisting to synthesize yarn, cutting and finishing after twisting, and finally winding for storage.
进一步地，所述步骤（1）中对废旧面料进行清理，使用碱性清洁液配比清水对面料进行清洁，清洁前先浸泡20-40分钟，同时配合清洁刷将废旧面料表面的异物油污灰尘等进行彻底处理，将处理后的废旧面料使用热风机进行彻底烘干。Further, in the step (1), the waste fabrics are cleaned, and the fabrics are cleaned with an alkaline cleaning solution in proportion to clean water, soaked for 20-40 minutes before cleaning, and at the same time, the foreign objects, oil and dust on the surface of the waste fabrics are removed with a cleaning brush. After thorough treatment, the treated waste fabrics are thoroughly dried with a hot air blower.
进一步地，所述步骤（1）中的废旧面料可以是聚酯纤维面料、聚酯纤维与棉纤维或是麻纤维混纺棉面料，废旧面料的制品包括面料边角料、窗帘、桌板以及床单。Further, the waste fabric in the step (1) can be polyester fiber fabric, polyester fiber and cotton fiber or hemp fiber blended cotton fabric, and the products of waste fabric include fabric scraps, curtains, table boards and bed sheets.
进一步地，所述步骤（2）中使用面料裁切机将面料裁切成条状物，条状物的长度为20-40cm之间，条状物的宽度为5-10cm之间，然后将条状面料使用面料粉碎机进行破碎，将面料破碎成为短丝，短丝的长度为5-10cm之间。Further, in the step (2), a fabric cutting machine is used to cut the fabric into strips, the length of the strip is between 20-40cm, the width of the strip is between 5-10cm, and then the The strip fabric is crushed by a fabric crusher, and the fabric is crushed into short filaments, and the length of the short filaments is between 5-10cm.
进一步地，所述步骤（3）中将破碎后的短丝使用铜氨溶液进行浸渍，浸渍的时间长度为0.5-1h，浸渍的温度为25-35摄氏度，通过铜氨溶液与短丝内部的棉纤维或是麻纤维进行反应，将棉纤维或是麻纤维溶解，然后将溶解后的短丝过滤，过滤后浸入清洁水中进行清洗，清洗后再次进行冲洗，冲洗后，使用热风机将短丝进行吹风烘干。Further, in the step (3), the broken short filaments are impregnated with a cupro ammonia solution, the impregnation time is 0.5-1 h, and the impregnation temperature is 25-35 degrees Celsius. The cotton fiber or hemp fiber reacts, dissolves the cotton fiber or hemp fiber, and then filters the dissolved filaments. After filtering, they are immersed in clean water for cleaning. After cleaning, they are rinsed again. Blow dry.
进一步地，所述步骤（4）中，将干燥后的短丝送入螺杆挤压机加热熔融，熔融状态的短丝经过纺丝箱过滤和计量泵分配， 再通过喷丝板喷丝成丝束，螺杆挤压机的螺杆和纺丝箱箱体温度均为270°C-280°C， 喷丝板孔径为0.5mm，  孔数为300。将喷出的长丝经过冷风进行冷却干燥，冷风的温度为25°C-30°C，冷风的风速为4.5m/s-5.5m/s。Further, in the step (4), the dried short filaments are fed into a screw extruder for heating and melting, and the molten short filaments are filtered through a spinning box and distributed by a metering pump, and then spun through a spinneret to form filaments. The temperature of the screw and spinning box of the screw extruder are both 270°C-280°C, the spinneret aperture is 0.5mm, The number of holes is 300. The sprayed filaments are cooled and dried by cold air, the temperature of the cold air is 25°C-30°C, and the wind speed of the cold air is 4.5m/s-5.5m/s.
进一步地，所述步骤（5）中对冷却成型后的聚酯纤维长丝使用喷雾机对长丝表面进行喷涂，所述喷雾机喷洒的溶液为阻燃剂溶液，所述阻燃剂溶液为磷酸三丁酯溶液，喷涂时使得聚酯纤维长丝进行反复转动，使得聚酯纤维长丝的表面充分与阻燃剂溶解进行接触，喷涂后的聚酯纤维长丝使用热风机进行烘干。Further, in the step (5), the polyester fiber filament after cooling and forming is sprayed on the surface of the filament with a sprayer, and the solution sprayed by the sprayer is a flame retardant solution, and the flame retardant solution is When spraying the tributyl phosphate solution, the polyester fiber filament is rotated repeatedly, so that the surface of the polyester fiber filament is fully dissolved and contacted with the flame retardant, and the sprayed polyester fiber filament is dried with a hot air blower.
进一步地，所述步骤（5）中对喷涂烘干后的聚酯纤维长丝表面的阻燃剂涂层进行检测，对阻燃剂涂层的厚度，以及包覆面积进行检测。Further, in the step (5), the flame retardant coating on the surface of the polyester fiber filament after being sprayed and dried is detected, and the thickness and covering area of the flame retardant coating are detected.
进一步地，所述步骤（5）中检验不合格的聚酯纤维长丝应重新重复（5）步骤再次加工处理，将再次加工处理后的聚酯纤维长丝进行再次检测。Further, the polyester fiber filaments that fail to pass the inspection in the step (5) should be processed again by repeating the step (5), and the polyester fiber filaments after the reprocessing treatment should be tested again.
进一步地，所述步骤（6）中烘干后的聚酯纤维长丝进行梳理，梳理后进行捻合成线，捻合后进行裁剪成型，最后收卷。Further, the polyester fiber filaments dried in the step (6) are combed, twisted to synthesize yarns after carding, cut and formed after twisting, and finally wound up.
上述方法适用于回收棉麻纤维含量较高的聚酯纤维面料再生阻燃聚酯纤维的工艺方法。The above method is suitable for a process method for reclaiming flame-retardant polyester fibers from polyester fiber fabrics with a relatively high content of cotton and hemp fibers.
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims (9)

  1. 根据权利要求1所述的一种采用回收聚酯纤维再生阻燃聚酯纤维的工艺方法，其特征在于：所述步骤（1）中对废旧面料进行清理，使用碱性清洁液配比清水对面料进行清洁，清洁前先浸泡30-60分钟，同时配合清洁刷将废旧面料表面的异物油污灰尘等进行彻底处理，将处理后的废旧面料使用热风机进行彻底烘干。The process method of using recycled polyester fibers to regenerate flame-retardant polyester fibers according to claim 1, characterized in that: in the step (1), the waste fabrics are cleaned, and an alkaline cleaning solution is used to mix clean water to clean the waste fabrics. To clean the fabric, soak it for 30-60 minutes before cleaning. At the same time, cooperate with the cleaning brush to thoroughly treat the foreign matter, oil, dust, etc. on the surface of the waste fabric, and use the hot air blower to dry the waste fabric thoroughly.
  2. 根据权利要求1所述的一种采用回收聚酯纤维再生阻燃聚酯纤维的工艺方法，其特征在于：所述步骤（1）中的废旧面料可以是聚酯纤维面料、聚酯纤维与棉纤维或是麻纤维混纺棉面料，废旧面料的制品包括面料边角料、窗帘、桌板以及床单。The process method of using recycled polyester fiber to regenerate flame-retardant polyester fiber according to claim 1, characterized in that: the waste fabric in the step (1) can be polyester fiber fabric, polyester fiber and cotton Fiber or hemp fiber blended cotton fabrics, waste fabric products include fabric scraps, curtains, table boards and bed sheets.
  3. 根据权利要求1所述的一种采用回收聚酯纤维再生阻燃聚酯纤维的工艺方法，其特征在于：所述步骤（2）中使用面料裁切机将面料裁切成条状物，条状物的长度为20-40cm之间，条状物的宽度为5-10cm之间，然后将条状面料使用面料粉碎机进行破碎，将面料破碎成为短丝，短丝的长度为5-10cm之间。The process method of using recycled polyester fibers to regenerate flame-retardant polyester fibers according to claim 1, characterized in that: in the step (2), a fabric cutting machine is used to cut the fabric into strips, and the strips are cut into strips. The length of the object is between 20-40cm, the width of the strip is between 5-10cm, and then the strip-shaped fabric is crushed with a fabric crusher, and the fabric is broken into short filaments, and the length of the short filaments is 5-10cm between.
  4. 根据权利要求1所述的一种采用回收聚酯纤维再生阻燃聚酯纤维的工艺方法，其特征在于：所述步骤（3）中将破碎后的短丝使用铜氨溶液进行浸渍，浸渍的时间长度为1-2h，浸渍的温度为25-35摄氏度，通过铜氨溶液与短丝内部的棉纤维或是麻纤维进行反应，将棉纤维或是麻纤维溶解，然后将溶解后的短丝过滤，过滤后浸入清洁水中进行清洗，清洗后再次进行冲洗，冲洗后，使用热风机将短丝进行吹风烘干。The process method of using recycled polyester fiber to regenerate flame-retardant polyester fiber according to claim 1, characterized in that: in the step (3), the broken short filaments are impregnated with a cupro ammonia solution, and the impregnated The time length is 1-2h, and the temperature of immersion is 25-35 degrees Celsius. The copper ammonia solution reacts with the cotton fiber or hemp fiber inside the short filament to dissolve the cotton fiber or hemp fiber, and then dissolve the dissolved short filament. Filter, immerse in clean water for cleaning after filtering, rinse again after cleaning, and dry the short filaments with a hot air blower after rinsing.
  5. 根据权利要求1所述的一种采用回收聚酯纤维再生阻燃聚酯纤维的工艺方法，其特征在于：所述步骤（4）中，将干燥后的短丝送入螺杆挤压机加热熔融，熔融状态的短丝经过纺丝箱过滤和计量泵分配， 再通过喷丝板喷丝成丝束，螺杆挤压机的螺杆和纺丝箱箱体温度均为270°C-280°C， 喷丝板孔径为0.5mm，  孔数为300。将喷出的长丝经过冷风进行冷却干燥，冷风的温度为25°C-30°C，冷风的风速为4.5m/s-5.5m/s。The process method of using recycled polyester fiber to regenerate flame-retardant polyester fiber according to claim 1, characterized in that: in the step (4), the dried short filament is fed into a screw extruder for heating and melting , the short filament in the molten state is filtered by the spinning box and distributed by the metering pump, The tow is then spun through a spinneret, the temperature of the screw of the screw extruder and the spinning box body are both 270°C-280°C, the spinneret aperture is 0.5mm, and the number of holes is 300. The sprayed filaments are cooled and dried by cold air, the temperature of the cold air is 25°C-30°C, and the wind speed of the cold air is 4.5m/s-5.5m/s.
  6. 根据权利要求1所述的一种采用回收聚酯纤维再生阻燃聚酯纤维的工艺方法，其特征在于：所述步骤（5）中对冷却成型后的聚酯纤维长丝使用喷雾机对长丝表面进行喷涂，所述喷雾机喷洒的溶液为阻燃剂溶液，所述阻燃剂溶液为磷酸三丁酯溶液，喷涂时使得聚酯纤维长丝进行反复转动，使得聚酯纤维长丝的表面充分与阻燃剂溶解进行接触，喷涂后的聚酯纤维长丝使用热风机进行烘干。The process method of using recycled polyester fibers to regenerate flame-retardant polyester fibers according to claim 1, characterized in that: in the step (5), a sprayer is used to lengthen the polyester fiber filaments after cooling and forming. The surface of the filament is sprayed, and the solution sprayed by the sprayer is a flame retardant solution, and the flame retardant solution is a tributyl phosphate solution, and the polyester fiber filament is rotated repeatedly during spraying, so that the polyester fiber filament is The surface is fully in contact with the flame retardant dissolved, and the polyester fiber filament after spraying is dried with a hot air blower.
  7. 根据权利要求1所述的一种采用回收聚酯纤维再生阻燃聚酯纤维的工艺方法，其特征在于：所述步骤（5）中对喷涂烘干后的聚酯纤维长丝表面的阻燃剂涂层进行检测，对阻燃剂涂层的厚度，以及包覆面积进行检测The process method of using recycled polyester fiber to regenerate flame-retardant polyester fiber according to claim 1, characterized in that: in the step (5), the surface of the polyester fiber filament after spray drying is flame-retardant The thickness of the flame retardant coating and the coverage area are tested
  8. 根据权利要求1所述的一种采用回收聚酯纤维再生阻燃聚酯纤维的工艺方法，其特征在于：所述步骤（5）中检验不合格的聚酯纤维长丝应重新重复（5）步骤再次加工处理，将再次加工处理后的聚酯纤维长丝进行再次检测。A process method for regenerating flame-retardant polyester fibers by using recycled polyester fibers according to claim 1, characterized in that: the polyester fiber filaments that fail to pass the inspection in the step (5) should be repeated (5) The step is reprocessing, and the polyester fiber filaments after reprocessing are re-detected.
  9. 根据权利要求1所述的一种采用回收聚酯纤维再生阻燃聚酯纤维的工艺方法，其特征在于：所述步骤（6）中烘干后的聚酯纤维长丝进行梳理，梳理后进行捻合成线，捻合后进行裁剪成型，最后收卷。The process method of using recycled polyester fiber to regenerate flame-retardant polyester fiber according to claim 1, characterized in that: in the step (6), the dried polyester fiber filaments are combed, and after combing, Twist synthetic yarn, cut and shape after twisting, and finally wind up.
PCT/CN2020/116691 2020-09-07 2020-09-22 Technological method for regenerating flame retardant polyester fiber by recycling polyester fiber WO2022047843A1 (en)

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