WO2019210650A1 - Technique de préparation de fibre de polyamide à bas point de fusion - Google Patents

Technique de préparation de fibre de polyamide à bas point de fusion Download PDF

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Publication number
WO2019210650A1
WO2019210650A1 PCT/CN2018/110733 CN2018110733W WO2019210650A1 WO 2019210650 A1 WO2019210650 A1 WO 2019210650A1 CN 2018110733 W CN2018110733 W CN 2018110733W WO 2019210650 A1 WO2019210650 A1 WO 2019210650A1
Authority
WO
WIPO (PCT)
Prior art keywords
melting
low
stretching
fiber
point nylon
Prior art date
Application number
PCT/CN2018/110733
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English (en)
Chinese (zh)
Inventor
顾洪达
Original Assignee
常熟涤纶有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 常熟涤纶有限公司 filed Critical 常熟涤纶有限公司
Publication of WO2019210650A1 publication Critical patent/WO2019210650A1/fr

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Classifications

    • 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
    • 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
    • D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
    • 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
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins

Definitions

  • the invention relates to the field of preparation of nylon, in particular to a preparation process of a low melting point nylon fiber.
  • the melt spinning method is the main way to produce low melting point fibers.
  • the main feature is that the melting point is low, and various process parameters in the spinning process need to be adjusted accordingly.
  • the raw material slice before the feeding, the raw material slice needs to be dried and dried. Because the melting point is low, the softening point is also reduced, the slicing is easy to occur, and the water in the slice is easily vaporized at a high temperature to form a bubble filament, which directly causes Spinning breaks and filaments are not conducive to subsequent spinning.
  • the high moisture content of the slice is likely to cause the ring junction material during the screw feeding stage, and the spinning is directly interrupted. Therefore, it is necessary to optimize the existing preparation process to solve the above problems.
  • the technical problem mainly solved by the invention is that, according to the deficiencies of the prior art, a preparation process of a low melting point nylon fiber is provided, which can solve the problem that the low melting point nylon fiber is easy to break in the spinning process, the finished silk is easy to bond, and is not good.
  • the problem of unwinding improves production stability while reducing production costs and increasing production efficiency.
  • a technical solution adopted by the present invention is to provide a preparation process of a low melting point nylon fiber, comprising the following steps:
  • Cooling and oiling the fiber tow is cooled by a hot air device, and then an antistatic agent and a saturating agent are added by a nylon oil to perform oiling treatment;
  • Pre-network the fiber tow after oiling is pre-networked through a pre-networker
  • Stretching and setting stretching and shaping the fiber tow after pre-networking, and adopting three pairs of rollers in stretching and setting;
  • (600) main network the stretched and shaped fiber tow passes through the main network to carry out the main network;
  • the screw during melting has a total of five zones.
  • the temperatures of the five sections of the screw during melting are: 117°-123°, 147°-153°, 152°-158°, 157°-163°, 167°. -173°.
  • the temperatures of the five zones of the screw during melting are: 120°, 150°, 155°, 160°, 170°.
  • the amount of the antistatic agent added is from 1.5% to 2.5%, and the amount of the saturated agent is from 2.5% to 3.5%.
  • the spinneret holes of the pre-networker used in the pre-network are inclined.
  • the pre-networking nozzle hole of the pre-network is inclined at an angle of 60°.
  • the three pairs of rolls have a roughness of 0.8-1.2 ⁇ m during the stretching and setting.
  • the temperatures of the three pairs of rolls during the stretching and setting are 65°-75°, 70°-80°, and 67°-77°, respectively.
  • the temperatures of the three pairs of rolls during the stretching and setting are 70°, 75°, and 72°, respectively.
  • the invention has the beneficial effects that the low melting point nylon piece is melt-spun, and the antistatic agent and the saturated agent are added to the special oil agent for the nylon by oiling, thereby improving the problem that the finished silk is easy to be bonded and not unwound.
  • Three pairs of rolls are used in the stretching and setting to improve the production stability and solve the problem of easy breakage.
  • the preparation process is simple and easy to operate, and at the same time, energy can be saved, pollution is reduced, production cost is reduced, and production efficiency is improved.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • a preparation process of a low melting point nylon fiber comprising the following steps:
  • Cooling and oiling the fiber tow is cooled by a hot air device, and then an antistatic agent and a saturating agent are added by a nylon oil to perform oiling treatment; when the oil is applied, the antistatic agent is added in an amount of 1.5%.
  • the addition amount of the saturant is 3.5%, which improves the problem that the finished silk is easy to bond and is not unwound;
  • (400) pre-network the fiber tow after oiling is pre-networked through a pre-networker; the spinning hole of the pre-networker is inclined at an angle of 60°;
  • Tensile setting stretching and shaping the pre-networked fiber tow, three pairs of rolls are used for stretching and setting; the three pairs of rolls have a roughness of 0.8-1.2 ⁇ m, and the temperature of the three pairs of rolls They are: 65°, 70°, 67°, which improves production stability and solves the problem of easy breakage;
  • (600) main network the stretched and shaped fiber tow passes through the main network to carry out the main network;
  • a preparation process of a low melting point nylon fiber comprising the following steps:
  • Cooling and oiling the fiber tow is cooled by a hot air device, and then an antistatic agent and a saturating agent are added by a nylon oil to perform oiling treatment; when the oil is applied, the amount of the antistatic agent is 2.5%.
  • the addition amount of the saturant is 2.5%, which improves the problem that the finished silk is easy to bond and does not unwind;
  • (400) pre-network the fiber tow after oiling is pre-networked through a pre-networker; the spinning hole of the pre-networker is inclined at an angle of 60°;
  • Tensile setting stretching and shaping the pre-networked fiber tow, three pairs of rolls are used for stretching and setting; the three pairs of rolls have a roughness of 0.8-1.2 ⁇ m, and the temperature of the three pairs of rolls They are: 75°, 80°, 77°, which improves production stability and solves the problem of easy breakage;
  • (600) main network the stretched and shaped fiber tow passes through the main network to carry out the main network;
  • a preparation process of a low melting point nylon fiber comprising the following steps:
  • Cooling and oiling the fiber tow is cooled by air blowing using a hot air device, and then an antistatic agent and a saturating agent are added by a nylon oil to perform oiling treatment; when the oil is applied, the amount of the antistatic agent is 2%.
  • the amount of the saturant added is 3%, which improves the problem that the finished silk is easy to bond and does not unwind;
  • (400) pre-network the fiber tow after oiling is pre-networked through a pre-networker; the spinning hole of the pre-networker is inclined at an angle of 60°;
  • Tensile setting stretching and shaping the pre-networked fiber tow, three pairs of rolls are used for stretching and setting; the three pairs of rolls have a roughness of 0.8-1.2 ⁇ m, and the temperature of the three pairs of rolls They are: 70°, 75°, 72°, which improves production stability and solves the problem of easy breakage;
  • (600) main network the stretched and shaped fiber tow passes through the main network to carry out the main network;
  • the invention discloses a preparation process of a low-melting-point nylon fiber, which is formed by melt-spinning a low-melting-point nylon piece, and adding an antistatic agent and a saturating agent to the nylon special oil agent by oiling, thereby improving the easy-bonding of the finished silk, It is not easy to unwind.
  • the preparation process is simple and easy to operate. At the same time, it can save energy, reduce pollution, reduce production cost and improve production efficiency. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

La présente invention concerne une technique de préparation de fibre de polyamide à bas point de fusion, comprenant les étapes suivantes consistant à : (100) prendre des tranches de polyamide à bas point de fusion comme matières premières et les faire fondre dans une vis pour former une solution de filage ; (200) ajuster le débit de la solution de filage au moyen d'une pompe de dosage puis l'extruder au moyen d'une filière pour former des filaments, de manière à obtenir des faisceaux de fibres ; (300) effectuer un refroidissement par soufflage d'air sur les faisceaux de fibres à l'aide d'un appareil de chauffage soufflant et mélanger avec un agent antistatique et un saturant à l'aide d'une huile de polyamide pour le graissage ; (400) effectuer un pré-entrelacement sur les faisceaux de fibres huilées ; (500) effectuer un étirement et un réglage sur les faisceaux de fibres pré-entrelacées ; (600) effectuer un entrelacement principal sur les faisceaux de fibres obtenus après l'étirement et le réglage ; (700) effectuer un enroulement entièrement automatique sur les faisceaux de fibres obtenus après l'entrelacement principal, pour obtenir un produit de fibre fini. Ce procédé permet de résoudre les problèmes de procédé de filage liés à une fibre de polyamide à bas point de fusion, par exemple le fait que des extrémités de fibre se rompent facilement, que les fibres finies sont sujettes à l'adhérence et que le décollement est difficile, ce qui améliore ainsi la stabilité et l'efficacité de production.
PCT/CN2018/110733 2018-05-03 2018-10-18 Technique de préparation de fibre de polyamide à bas point de fusion WO2019210650A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810414654.7A CN108560067A (zh) 2018-05-03 2018-05-03 一种低熔点锦纶纤维的制备工艺
CN201810414654.7 2018-05-03

Publications (1)

Publication Number Publication Date
WO2019210650A1 true WO2019210650A1 (fr) 2019-11-07

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CN (1) CN108560067A (fr)
WO (1) WO2019210650A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111020729B (zh) * 2019-11-26 2021-02-05 浙江及时宇特种纤维科技有限公司 一种低熔点锦纶热熔丝制备设备及工艺
CN114016153A (zh) * 2021-11-29 2022-02-08 福建漳平协龙高新化纤有限公司 一种抗黄变尼龙热熔丝及其制备方法

Citations (8)

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Publication number Priority date Publication date Assignee Title
JP2008223198A (ja) * 2007-03-15 2008-09-25 Nippon Ester Co Ltd ポリアミド繊維の製造方法
CN102560706A (zh) * 2012-02-29 2012-07-11 瑞安市瑞邦针纺科技有限公司 低熔点热熔性尼龙长丝的制备方法
CN102747438A (zh) * 2012-06-28 2012-10-24 浙江台华新材料股份有限公司 一种20d/24f全消光锦纶6全牵伸丝的生产方法
CN103147168A (zh) * 2013-03-06 2013-06-12 常州市灵达化学品有限公司 一种纺丝油剂及制备方法
CN104313721A (zh) * 2014-11-06 2015-01-28 湖北省宇涛特种纤维股份有限公司 一种低熔点热粘合聚酰胺纤维长丝及其制备方法
CN104631103A (zh) * 2015-01-26 2015-05-20 南通华纶化纤有限公司 锦纶纺丝用油剂组合物
CN104695033A (zh) * 2015-03-19 2015-06-10 泉州天宇化纤织造实业有限公司 一种锦纶6粗旦高强丝的生产工艺
CN107227612A (zh) * 2017-06-28 2017-10-03 常州通和建筑工程有限公司 一种耐挥发型纺丝油剂

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008223198A (ja) * 2007-03-15 2008-09-25 Nippon Ester Co Ltd ポリアミド繊維の製造方法
CN102560706A (zh) * 2012-02-29 2012-07-11 瑞安市瑞邦针纺科技有限公司 低熔点热熔性尼龙长丝的制备方法
CN102747438A (zh) * 2012-06-28 2012-10-24 浙江台华新材料股份有限公司 一种20d/24f全消光锦纶6全牵伸丝的生产方法
CN103147168A (zh) * 2013-03-06 2013-06-12 常州市灵达化学品有限公司 一种纺丝油剂及制备方法
CN104313721A (zh) * 2014-11-06 2015-01-28 湖北省宇涛特种纤维股份有限公司 一种低熔点热粘合聚酰胺纤维长丝及其制备方法
CN104631103A (zh) * 2015-01-26 2015-05-20 南通华纶化纤有限公司 锦纶纺丝用油剂组合物
CN104695033A (zh) * 2015-03-19 2015-06-10 泉州天宇化纤织造实业有限公司 一种锦纶6粗旦高强丝的生产工艺
CN107227612A (zh) * 2017-06-28 2017-10-03 常州通和建筑工程有限公司 一种耐挥发型纺丝油剂

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