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CN116641149A - High Jiang Qingliang yarn and production process thereof - Google Patents

High Jiang Qingliang yarn and production process thereof Download PDF

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Publication number
CN116641149A
CN116641149A CN202310796085.8A CN202310796085A CN116641149A CN 116641149 A CN116641149 A CN 116641149A CN 202310796085 A CN202310796085 A CN 202310796085A CN 116641149 A CN116641149 A CN 116641149A
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CN
China
Prior art keywords
polyester
yarn
strength lightweight
filaments
antioxidant
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202310796085.8A
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Chinese (zh)
Inventor
蔡淑玲
洪宣瑜
黄丽烟
林银花
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wester Knitting Garment Co ltd Jinjiang
Original Assignee
Wester Knitting Garment Co ltd Jinjiang
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 Wester Knitting Garment Co ltd Jinjiang filed Critical Wester Knitting Garment Co ltd Jinjiang
Priority to CN202310796085.8A priority Critical patent/CN116641149A/en
Publication of CN116641149A publication Critical patent/CN116641149A/en
Pending legal-status Critical Current

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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/10Other agents for modifying properties
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/10Other agents for modifying properties
    • D01F1/103Agents inhibiting growth of microorganisms

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Artificial Filaments (AREA)

Abstract

The invention relates to a high Jiang Qingliang silk and a production process thereof, which are characterized in that the polyester fluid is foamed by adopting the cooperation of dodecyl-cage polysilsesquioxane and polylactic acid, so as to obtain the polyester fiber with a porous structure, and the polyester fiber has small hole particle size, high density and uniform distribution, and effectively reduces the density of the polyester fiber, so that the polyester fiber has the excellent performances of softness and good ventilation; meanwhile, compared with unfoamed polyester fibers, the polyester fibers with the porous structure still have higher strength and toughness, are not easy to break in the processing process, and are convenient to process.

Description

High Jiang Qingliang yarn and production process thereof
Technical Field
The invention relates to the technical field of fibers, in particular to a high Jiang Qingliang yarn and a production process thereof.
Background
The high-strength light-weight fiber is a fiber with high strength and light weight, and can be prepared from polyester fiber, polyamide fiber, polyacrylonitrile fiber and the like. The high-strength light-weight yarn is prepared from polyester fibers and can be obtained by modifying the polyester fibers by a physical or chemical method.
The polyester fiber, also called as "terylene", is a synthetic fiber obtained by spinning polyester formed by polycondensation of organic dibasic acid and dihydric alcohol, belongs to a high molecular compound, and is the first large variety of the current synthetic fiber. The polyester fiber has the greatest advantages of good crease resistance and shape retention, high strength and elastic recovery capability, fastness, durability, crease resistance, no ironing and no sticking; however, it has the disadvantages of high density and air impermeability, and it is necessary to modify the polyester fiber by physical or chemical means to reduce the density of the polyester fiber and to increase air permeability, so as to obtain a polyester fiber having low density, light weight, air circulation inside, and excellent characteristics such as light weight, softness, antibacterial property, and air permeability.
The modification treatment method of the polyester fiber in the prior art mainly comprises a plasma modification method, an ultraviolet irradiation modification method, a chemical foaming method and the like; wherein the chemical foaming method is to treat the polyester fiber with foaming agent to obtain the light and breathable porous polyester fiber. However, the porous polyester fiber prepared by the traditional foaming process, such as adopting inorganic nano particles, talcum powder and the like as pore-forming agents, still has the conditions of large pore diameter and small density of cells, so that the strength, toughness and other performances of the porous polyester fiber are seriously reduced, the porous polyester fiber is easy to break in the processing process, and the processing difficulty and the processing cost are greatly increased. Therefore, there is a need to provide a new solution to overcome the above-mentioned drawbacks.
Disclosure of Invention
The invention aims to provide a high-strength light-weight yarn capable of effectively solving the technical problems and a production process thereof, and the high-strength light-weight yarn prepared by foaming polyester fluid through adopting dodecyl-cage polysilsesquioxane and polylactic acid has uniform cell distribution, small pore diameter and high density, and has light and handy air permeability characteristics and higher strength and toughness.
In order to achieve the purpose of the invention, the following technical scheme is adopted:
a production process of high-strength light-weight silk comprises the following steps:
s1, taking and placing the poly (terephthalic acid), the ethylene glycol and other auxiliary agents into a middle reaction kettle, and mixing and reacting under the condition of stirring to obtain a polyester polymer;
s2, crystallizing, drying and granulating the polyester polymer to obtain polyester granules;
s3, feeding polyester granules, dodecyl-cage polysilsesquioxane and polylactic acid into a spinning machine, melting and stirring for 10-15 min, extruding by a screw of the spinning machine, and then foaming for 5-10 min to obtain a polyester fluid with a porous structure;
s4, spraying the polyester fluid through a spinneret plate to obtain yarn, and then carrying out air-blowing cooling, oiling, multistage stretching, shaping and winding to obtain the high-strength light-weight yarn.
Preferably, in the step S1, the weight ratio of the polyethylene terephthalate, the ethylene glycol and the other auxiliary agents is (300-500): (150-300): (2-10).
Preferably, the other auxiliary agents comprise bacteriostatic agents and antioxidants.
Preferably, the antibacterial agent is selected from one or a combination of more of a bacteriostatic agent 980, a bacteriostatic agent AW10N and bacteriostatic agents SG-861 SA.
Preferably, the antioxidant is selected from one or more of antioxidant 168, antioxidant 1024 and antioxidant T501.
Preferably, in the step S3, the weight part ratio of the polyester granules, the dodecyl-cage polysilsesquioxane and the polylactic acid is (100-300): (3-8): (0.5-1.5).
Preferably, the molecular weight of the polylactic acid is 8-15 ten thousand.
Preferably, in step S4, the discharge hole of the spinneret plate is in an "i" shape.
Meanwhile, the invention also provides a high Jiang Qingliang yarn which is manufactured by adopting the production process.
Compared with the prior art, the invention has the following beneficial effects: the polyester fluid is subjected to foaming treatment by adopting the cooperation of the dodecyl-cage polysilsesquioxane and the polylactic acid, so that the polyester fiber with a porous structure is obtained, and the polyester fiber has small hole particle size, high density and uniform distribution, effectively reduces the density of the polyester fiber, and has the excellent properties of softness and good ventilation; meanwhile, compared with unfoamed polyester fibers, the polyester fibers with the porous structure still have higher strength and toughness, are not easy to break in the processing process, and are convenient to process.
1. The invention further improves the strength and toughness of the porous polyester fiber by making the porous polyester fiber into the H-shaped special-shaped structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments.
The chemicals and equipment used in the following are all normally commercially available products, and specific sources of purchase are not specifically described.
The invention provides a production process of high-strength light-weight yarns, which specifically comprises the following steps:
s1: putting the poly terephthalic acid, the ethylene glycol and other auxiliary agents into a middle reaction kettle, and mixing and reacting under the condition of stirring to obtain a polyester polymer; wherein, the weight ratio of the poly terephthalic acid to the ethylene glycol to the other auxiliary agents is (300-500): (150-300): (2-10); the other auxiliary agents comprise a bacteriostatic agent and an antioxidant, the bacteriostatic agent is selected from one or a combination of a plurality of bacteriostatic agents 980, bacteriostatic agents AW10N and bacteriostatic agents SG-861 SA, and the antioxidant is selected from one or a combination of a plurality of antioxidants 168, 1024 and T501.
S2: and crystallizing, drying and granulating the polyester polymer to obtain polyester granules.
S3: feeding polyester granules, dodecyl-cage polysilsesquioxane and polylactic acid into a spinning machine for melting and stirring for 10-15 min, extruding by a screw of the spinning machine, and then foaming for 5-10 min to obtain a polyester fluid with a porous structure; wherein the weight ratio of the polyester granules to the dodecyl-cage polysilsesquioxane to the polylactic acid is (100-300): 3-8): 0.5-1.5; and the molecular weight of the polylactic acid is 8-15 ten thousand; the screw extrusion temperature of the spinning machine is 220-240 ℃; the foaming temperature is 300-320 ℃.
S4: and (3) spraying the polyester fluid through a spinneret plate to obtain yarn, and then carrying out air-blowing cooling, oiling, multistage stretching, shaping and winding to obtain the high-strength lightweight yarn.
Wherein, the bacteriostat 980, the bacteriostat AW10N and the bacteriostat SG-861 SA are purchased from Shanghai river material science and technology Co., ltd; antioxidant 168, antioxidant 1024 and antioxidant T501 are purchased from Suzhou market, xin-Shi-Mao-Dao Limited.
Wherein, the discharge gate of spinneret can be "worker" style of calligraphy, through making the polyester fiber who has porous structure "worker" style of calligraphy special-shaped structure to the intensity and toughness have further been improved under the condition of the same cross-sectional area.
Example 1:
a high Jiang Qingliang yarn is produced by the following steps:
putting 300 parts of terephthalic acid, 150 parts of ethylene glycol, 980 parts of a bacteriostat and 168.5 parts of an antioxidant into a reaction kettle, and mixing and reacting under the condition of stirring to obtain a polyester polymer; and then crystallizing, drying and granulating the polyester polymer to obtain polyester granules.
Taking 100 parts of polyester granules, 3 parts of dodecyl-cage polysilsesquioxane and 0.5 part of polylactic acid, sending into a spinning machine, melting and stirring for 10-15 min at 220-240 ℃, extruding by a screw of the spinning machine, and then foaming at 300-320 ℃ for 5-10 min to obtain the polyester fluid with a porous structure.
And (3) spraying the polyester fluid through a spinneret plate with an I-shaped discharge hole to obtain a yarn, and then carrying out air-blowing cooling, oiling, multistage stretching, shaping and winding to obtain the high-strength lightweight yarn.
Example 2:
a high Jiang Qingliang yarn is produced by the following steps:
400 parts of poly terephthalic acid, 200 parts of ethylene glycol, 980 parts of bacteriostat and 168 parts of antioxidant are put into a reaction kettle, and mixed and reacted under the condition of stirring to obtain a polyester polymer; and then crystallizing, drying and granulating the polyester polymer to obtain polyester granules.
200 parts of polyester granules, 5 parts of dodecyl-cage polysilsesquioxane and 1 part of polylactic acid are taken and sent into a spinning machine for melt stirring for 10-15 min at 220-240 ℃, then extruded by a screw of the spinning machine, and then foamed at 300-320 ℃ for 5-10 min, thus obtaining the polyester fluid with a porous structure.
And (3) spraying the polyester fluid through a spinneret plate with an I-shaped discharge hole to obtain a yarn, and then carrying out air-blowing cooling, oiling, multistage stretching, shaping and winding to obtain the high-strength lightweight yarn.
Example 3:
a high Jiang Qingliang yarn is produced by the following steps:
500 parts of terephthalic acid, 300 parts of ethylene glycol, 980 parts of a bacteriostat and 168 parts of an antioxidant are put into a reaction kettle, and mixed and reacted under the condition of stirring to obtain a polyester polymer; and then crystallizing, drying and granulating the polyester polymer to obtain polyester granules.
Taking 300 parts of polyester granules, 8 parts of dodecyl-cage polysilsesquioxane and 1.5 parts of polylactic acid, sending into a spinning machine, melting and stirring for 10-15 min at 220-240 ℃, extruding by a screw of the spinning machine, and then foaming at 300-320 ℃ for 5-10 min to obtain the polyester fluid with a porous structure.
And (3) spraying the polyester fluid through a spinneret plate with an I-shaped discharge hole to obtain a yarn, and then carrying out air-blowing cooling, oiling, multistage stretching, shaping and winding to obtain the high-strength lightweight yarn.
Comparative example 1:
a porous polyester fiber is produced by the following steps:
400 parts of poly terephthalic acid, 200 parts of ethylene glycol, 980 parts of bacteriostat and 168 parts of antioxidant are put into a reaction kettle, and mixed and reacted under the condition of stirring to obtain a polyester polymer; and then crystallizing, drying and granulating the polyester polymer to obtain polyester granules.
200 parts of polyester granules and 5 parts of talcum powder are taken and sent into a spinning machine for melting and stirring for 10-15 min at 220-240 ℃, then are extruded by a screw of the spinning machine, and then are subjected to foaming treatment at 300-320 ℃ for 5-10 min, thus obtaining the polyester fluid with a porous structure.
And (3) spraying the polyester fluid through a spinneret plate with an I-shaped discharge hole to obtain yarn, and then carrying out air-blowing cooling, oiling, multistage stretching, shaping and winding to obtain the porous polyester fiber.
Comparative example 2:
a porous polyester fiber is produced by the following steps:
400 parts of poly terephthalic acid, 200 parts of ethylene glycol, 980 parts of bacteriostat and 168 parts of antioxidant are put into a reaction kettle, and mixed and reacted under the condition of stirring to obtain a polyester polymer; and then crystallizing, drying and granulating the polyester polymer to obtain polyester granules.
200 parts of polyester granules and 6 parts of dodecyl-cage polysilsesquioxane are taken and sent into a spinning machine for melt stirring for 10-15 min at 220-240 ℃, then extruded by a screw of the spinning machine, and then foamed at 300-320 ℃ for 5-10 min, thus obtaining the polyester fluid with a porous structure.
And (3) spraying the polyester fluid through a spinneret plate with an I-shaped discharge hole to obtain yarn, and then carrying out air-blowing cooling, oiling, multistage stretching, shaping and winding to obtain the porous polyester fiber.
Performance test:
the products of examples 1-3 and comparative examples 1-2 described above, as well as common polyester fibers (outsourced from Shandong Taicheng fiber Co., ltd.) were subjected to performance tests, the test items including density, breaking strength, elongation at break, and the number of breaks, and the results are shown in Table 1 below.
The test method comprises the following steps:
density: according to the density gradient method of the seventh part of FZ/T01057.5-2007 "textile fiber identification experiment method".
Breaking strength and elongation at break: according to GB/T14337-2008 'method for testing tensile properties of short fibers of chemical fibers', the breaking strength and the breaking elongation of the polyester stretch textured yarn are measured and calculated; the fiber strength is tested by adopting a single fiber electronic strength meter, the pre-tension is 0.15cN/dtex, the stretching speed is 20mm/min, and the clamping distance is 20mm.
Number of broken filaments: and (3) continuously running samples for 24 hours in the same equipment by the same process, and recording the number of broken wires during the running of the equipment.
Table 1: test results
From the results in table 1, it is clear that the high-strength lightweight yarn produced by the method of the present invention has not only a small difference in strength from the unfoamed ordinary polyester fiber, but also improved toughness, excellent performance and easy processing while ensuring a light weight.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.

Claims (9)

1. A production process of high-strength light-weight silk is characterized in that: the method comprises the following steps:
s1, taking and placing the poly (terephthalic acid), the ethylene glycol and other auxiliary agents into a middle reaction kettle, and mixing and reacting under the condition of stirring to obtain a polyester polymer;
s2, crystallizing, drying and granulating the polyester polymer to obtain polyester granules;
s3, feeding polyester granules, dodecyl-cage polysilsesquioxane and polylactic acid into a spinning machine, melting and stirring for 10-15 min, extruding by a screw of the spinning machine, and then foaming for 5-10 min to obtain a polyester fluid with a porous structure;
s4, spraying the polyester fluid through a spinneret plate to obtain yarn, and then carrying out air-blowing cooling, oiling, multistage stretching, shaping and winding to obtain the high-strength lightweight polyester fiber, namely the high-strength lightweight yarn.
2. The process for producing high-strength lightweight filaments as set forth in claim 1, wherein: in the step S1, the weight ratio of the polyethylene terephthalate to the ethylene glycol to the other auxiliary agents is (300-500): (150-300): (2-10).
3. The process for producing high-strength lightweight filaments as set forth in claim 2, wherein: the other auxiliary agents comprise a bacteriostatic agent and an antioxidant.
4. A process for producing high-strength lightweight filaments as claimed in claim 3, wherein: the antibacterial agent is selected from one or a combination of more of a bacteriostatic agent 980, a bacteriostatic agent AW10N and a bacteriostatic agent SG-861 SA.
5. The process for producing high-strength lightweight filaments as claimed in claim 4, wherein: the antioxidant is selected from one or more of antioxidant 168, antioxidant 1024 and antioxidant T501.
6. The process for producing high-strength lightweight filaments as set forth in claim 1, wherein: in the step S3, the weight ratio of the polyester granules to the dodecyl-cage polysilsesquioxane to the polylactic acid is (100-300): 3-8): 0.5-1.5.
7. The process for producing high-strength lightweight filaments as set forth in claim 6, wherein: the molecular weight of the polylactic acid is 8-15 ten thousand.
8. The process for producing high-strength lightweight filaments as set forth in claim 1, wherein: in the step S4, the discharge hole of the spinneret plate is I-shaped.
9. A high Jiang Qingliang yarn, characterized by: the high-strength lightweight yarn is produced by the production process of the high-strength lightweight yarn according to any one of claims 1 to 8.
CN202310796085.8A 2023-07-01 2023-07-01 High Jiang Qingliang yarn and production process thereof Pending CN116641149A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310796085.8A CN116641149A (en) 2023-07-01 2023-07-01 High Jiang Qingliang yarn and production process thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310796085.8A CN116641149A (en) 2023-07-01 2023-07-01 High Jiang Qingliang yarn and production process thereof

Publications (1)

Publication Number Publication Date
CN116641149A true CN116641149A (en) 2023-08-25

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060057359A1 (en) * 2004-03-31 2006-03-16 Travelute Frederick L Iii Low density light weight filament and fiber
CN110167999A (en) * 2017-01-31 2019-08-23 金伯利-克拉克环球有限公司 Polymer material
CN110325676A (en) * 2017-02-28 2019-10-11 金伯利-克拉克环球有限公司 It is used to form the technology of porous fibre

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060057359A1 (en) * 2004-03-31 2006-03-16 Travelute Frederick L Iii Low density light weight filament and fiber
CN110167999A (en) * 2017-01-31 2019-08-23 金伯利-克拉克环球有限公司 Polymer material
CN110325676A (en) * 2017-02-28 2019-10-11 金伯利-克拉克环球有限公司 It is used to form the technology of porous fibre

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