CN110965165A - Preparation process of multifunctional polyester low-elasticity composite yarn - Google Patents
Preparation process of multifunctional polyester low-elasticity composite yarn Download PDFInfo
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- 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
- D02G3/04—Blended or other yarns or threads containing components made from different materials
- D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
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- 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
- D01D1/06—Feeding liquid to the spinning head
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- 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
- D01D13/00—Complete machines for producing artificial threads
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- 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
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- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
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- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
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- 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
- D01F6/88—Monocomponent 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
- D01F6/92—Monocomponent 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
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- 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
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
- D02G3/324—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic using a drawing frame
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- 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
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
- D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
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- 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
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
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- 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]
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- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Artificial Filaments (AREA)
Abstract
The invention discloses a preparation process of multifunctional polyester low-elasticity composite yarn, which comprises the following steps: (1) blending the pre-crystallized PET slices, the flame-retardant master batches, the hydrophilic master batches and the antibacterial master batches, and performing extrusion granulation to obtain polyester blended slices; (2) two parallel melt spinning processes are adopted, wherein one process is a POY melt spinning process, and the other process is an FDY melt spinning process; polyester POY spinning is obtained in the POY melt spinning process, and polyester FDY spinning is obtained in the FDY melt spinning process; (3) drawing the polyester FDY spinning yarn to obtain polyester FDY drawn yarn; compounding the polyester FDY drawn yarns and the polyester POY spun yarns to form composite yarns, and shaping the composite yarns to obtain mixed filament yarns; (4) and false twisting and deforming the combined filament yarn to obtain the terylene low-elasticity composite yarn. The terylene low-elasticity composite yarn not only has better moisture absorption and sweat releasing effects, flame retardant effects and antibacterial effects, but also has high dye uptake during dyeing, fluffy and soft hand feeling and certain elasticity, and the application range of the terylene low-elasticity composite yarn is expanded.
Description
Technical Field
The invention belongs to the technical field of composite fiber preparation, and particularly relates to a preparation process of multifunctional polyester low-elasticity composite yarn.
Background
Polyester fiber (dacron) is one of three main fibers in synthetic fiber, and is widely applied to garment materials and other non-garment fields due to excellent physical and chemical properties. However, polyester fibers have high modulus, no polar groups, and fabrics woven from the polyester fibers have hard handfeel, poor air permeability and hygroscopicity, and low dyeing degree in the dyeing process. These disadvantages limit their application in areas where breathability and hygroscopicity are required, where hand feel is high, etc. In addition, the varieties of the existing polyester low stretch yarn products are single, and the fabrics woven by the polyester low stretch yarn products as raw materials have single functions. Therefore, it is an important research direction to improve the dyeability, hand feeling, moisture absorption and air permeability of polyester, and to provide the polyester with better flame retardant function and antibacterial function.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a preparation process of a multifunctional polyester low-elasticity composite yarn, the polyester low-elasticity composite yarn prepared by the process has good moisture absorption and sweat releasing effects, flame retardant effects and antibacterial effects, the dye uptake rate is high during dyeing, and the polyester low-elasticity composite yarn also has fluffy and soft hand feeling and certain elasticity, so that the application range of the polyester low-elasticity composite yarn is expanded.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
a preparation process of multifunctional polyester low-elasticity composite yarn comprises the following steps:
(1) preparation of polyester blend chips
Enabling the polyester wet slices to pass through a wet slice bin, entering a pre-crystallization stage, obtaining pre-crystallized PET slices after pre-crystallization, respectively drying the pre-crystallized PET slices, the flame-retardant master batches, the hydrophilic master batches and the antibacterial master batches, adding the dried pre-crystallized PET slices, the flame-retardant master batches, the hydrophilic master batches and the antibacterial master batches into an internal mixer for blending, and then carrying out extrusion granulation to obtain polyester blended slices;
(2) melt spinning
Two parallel melt spinning processes are adopted, wherein one melt spinning process is a POY melt spinning process, and the other melt spinning process is an FDY melt spinning process; the melt spinning process comprises the following steps: feeding the polyester blended dry slices into a screw extruder, melting at high temperature, extruding out a melt, filtering impurities of the melt, feeding the melt into a spinning assembly, carrying out melt spinning, solidifying and cooling the melt spun by the spinning assembly into filaments by airflow blown out by a side air-blowing cooling device, obtaining polyester POY spinning in a POY melt spinning process, and obtaining polyester FDY spinning in an FDY melt spinning process;
(3) preparation of combined filament yarn
After oiling and pre-networking polyester FDY spinning, drafting the polyester FDY spinning through a drafting hot roller to obtain polyester FDY drafting yarns; after oiling and pre-networking polyester POY spinning, compounding the polyester POY spinning with polyester FDY drawn yarns through a composite yarn guide to form composite yarns, shaping the composite yarns through a shaping hot roller, and winding and forming the composite yarns through a main network guide to obtain mixed filament yarns;
(4) preparing terylene low-elasticity composite yarn
And feeding the obtained combined filament yarn into a false twister for false twisting and deformation to obtain the low-elasticity polyester composite yarn.
Further, in the step (1), the temperature of pre-crystallization is 170-175 ℃, the time of pre-crystallization is 12-16 min, the drying temperature is 180-185 ℃, and the drying time is 4-6 h.
Further, in the step (2), the screw temperature of the screw extruder is 260-285 ℃, the spinning temperature in the melt spinning process is 285-290 ℃, the side blowing temperature of the side blowing cooling device is 23-25 ℃, the side blowing speed is 0.4-0.6 m/s, and the side blowing humidity is 70-80%.
Further, in the step (3), the temperature of the drafting hot roller is 180-190 ℃, and the temperature of the shaping hot roller is 135-140 ℃.
Furthermore, the speed ratio of the false twister is 1.3-1.6.
Furthermore, the flame-retardant master batch is a phosphorus halogen-free flame-retardant master batch.
Furthermore, the antibacterial master batch is prepared from a nano silver ion antibacterial agent, polyester and a dispersing agent.
Further, in the step (1), the mass fraction of the pre-crystallized PET slices is 85% -90%, the mass fraction of the flame-retardant master batches is 2% -8%, the mass fraction of the hydrophilic master batches is 1% -5%, and the mass fraction of the antibacterial master batches is 1% -5%.
The invention has the beneficial effects that:
(1) in the preparation process, the PET slices are mixed with the flame-retardant master batches, the hydrophilic master batches and the antibacterial master batches, so that the finally obtained low-elasticity polyester composite yarn has excellent flame retardance, moisture absorption, air permeability and antibacterial property, the functions of polyester are enriched, and the fabric prepared from the polyester composite yarn also has diversified functions.
(2) According to the invention, the POY yarns and the FDY yarns are compounded to obtain the combined filament yarns, and because the POY yarns and the FDY yarns have different shrinkages, the combined filament yarns are in a ring-arc structure after heat treatment, so that fluffy and soft handfeel is given to the combined filament yarns, and furthermore, fabrics woven from the polyester low-elasticity combined filaments obtained based on the combined filament yarns have plump and soft handfeel and good heat retention property; due to the fluffy loop-arc structure of the combined yarn, a capillary effect is formed, so that the fabric can be endowed with better moisture absorption, and the air permeability is improved; in addition, the dyeing property of the obtained combined filament yarn is stable, and the dye uptake is improved, so that the dyeing property of the fabric woven by the polyester low-elasticity composite yarn is improved.
(3) False twisting and deforming the combined filament yarn to obtain the terylene low-elasticity composite yarn; the terylene low-elasticity composite yarn has the characteristics of high strength, low elongation and low initial modulus, and has good crimpability.
Drawings
FIG. 1 is a flow chart of a preparation process of the multifunctional polyester low-elasticity composite yarn.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Example 1
As shown in fig. 1, a preparation process of a multifunctional polyester low-elasticity composite yarn comprises the following steps:
(1) preparation of polyester blend chips
Enabling polyester wet chips to pass through a wet chip bin, entering a pre-crystallization stage, enabling the pre-crystallization temperature to be 170 ℃, enabling the pre-crystallization time to be 14min, obtaining pre-crystallized PET chips after pre-crystallization, respectively drying 85% of the pre-crystallized PET chips, 5% of flame-retardant master batches, 5% of hydrophilic master batches and 5% of antibacterial master batches at the drying temperature of 180 ℃ for 5h, adding all raw materials into an internal mixer after drying, blending, and then extruding and granulating to obtain polyester blended chips;
(2) melt spinning
Two parallel melt spinning processes are adopted, wherein one melt spinning process is a POY melt spinning process, and the other melt spinning process is an FDY melt spinning process; the melt spinning process comprises the following steps: feeding the polyester blended chips into a screw extruder, wherein the screw extruder is divided into seven zones, the temperature of a screw is 260-285 ℃, the melt is extruded through high-temperature melting, melt impurities are filtered, the melt enters a spinning assembly to be subjected to melt spinning, the spinning temperature is 285 ℃, the melt sprayed by the spinning assembly is solidified and cooled into filaments through air flow blown out by a side blowing cooling device, the side blowing temperature in the process is 23 ℃, the side blowing speed is 0.4m/s, and the side blowing humidity is 78%; polyester POY spinning is obtained in the POY melt spinning process, and polyester FDY spinning is obtained in the FDY melt spinning process;
(3) preparation of combined filament yarn
After oiling and pre-networking polyester FDY spinning, drafting the polyester FDY spinning through a drafting hot roller, wherein the temperature of the drafting hot roller is 180 ℃, and obtaining polyester FDY drafting yarns; after oiling and pre-networking polyester POY spinning, compounding the polyester POY spinning with polyester FDY drawn yarns through a composite yarn guide to form composite yarns, shaping the composite yarns through a shaping hot roller at the temperature of 135 ℃, and winding and forming the composite yarns through a main network guide to obtain mixed filaments;
(4) preparing terylene low-elasticity composite yarn
Feeding the obtained combined filament yarn into a false twister for false twisting deformation to obtain the terylene low-elasticity composite yarn; wherein the speed ratio of the false twister is 1.3.
Example 2
A preparation process of multifunctional polyester low-elasticity composite yarn comprises the following steps:
(1) preparation of polyester blend chips
Enabling polyester wet chips to pass through a wet chip bin, entering a pre-crystallization stage, enabling the pre-crystallization temperature to be 173 ℃, enabling the pre-crystallization time to be 15min, obtaining pre-crystallized PET chips after pre-crystallization, drying 88% of the pre-crystallized PET chips, 4% of flame-retardant master batches, 4% of hydrophilic master batches and 4% of antibacterial master batches respectively, enabling the drying temperature to be 182 ℃, enabling the drying time to be 4h, adding all raw materials into an internal mixer after drying, blending, and then extruding and granulating to obtain polyester blended chips;
(2) melt spinning
Two parallel melt spinning processes are adopted, wherein one melt spinning process is a POY melt spinning process, and the other melt spinning process is an FDY melt spinning process; the melt spinning process comprises the following steps: feeding the polyester blended chips into a screw extruder, wherein the screw extruder is divided into seven zones, the temperature of a screw is 260-285 ℃, the melt is extruded through high-temperature melting, melt impurities are filtered, the melt enters a spinning assembly to be subjected to melt spinning, the spinning temperature is 285 ℃, the melt spun by the spinning assembly is solidified and cooled into filaments through air flow blown out by a side blowing cooling device, the side blowing temperature in the process is 24 ℃, the side blowing speed is 0.5m/s, the side blowing humidity is 78%, polyester POY spinning is obtained in the POY melt spinning process, and polyester FDY spinning is obtained in the FDY melt spinning process;
(3) preparation of combined filament yarn
After oiling and pre-networking polyester FDY spinning, drafting the polyester FDY spinning through a drafting hot roller, wherein the temperature of the drafting hot roller is 180 ℃, and obtaining polyester FDY drafting yarns; after oiling and pre-networking polyester POY spinning, compounding the polyester POY spinning with polyester FDY drawn yarns through a composite yarn guide to form composite yarns, shaping the composite yarns through a shaping hot roller at the temperature of 136 ℃, and winding and forming the composite yarns through a main network guide to obtain mixed filaments;
(4) preparing terylene low-elasticity composite yarn
Feeding the obtained combined filament yarn into a false twister for false twisting deformation to obtain the terylene low-elasticity composite yarn; wherein the speed ratio of the false twister is 1.4.
Example 3
A preparation process of multifunctional polyester low-elasticity composite yarn comprises the following steps:
(1) preparation of polyester blend chips
Enabling polyester wet slices to pass through a wet slice bin, entering a pre-crystallization stage, wherein the pre-crystallization temperature is 175 ℃, the pre-crystallization time is 12min, obtaining pre-crystallized PET slices after pre-crystallization, respectively drying 90% of the pre-crystallized PET slices, 2% of flame-retardant master batches, 5% of hydrophilic master batches and 3% of antibacterial master batches at the drying temperature of 185 ℃ for 4h, adding all raw materials into an internal mixer after drying, blending, and then extruding and granulating to obtain polyester blended slices;
(2) melt spinning
Two parallel melt spinning processes are adopted, wherein one melt spinning process is a POY melt spinning process, and the other melt spinning process is an FDY melt spinning process; the melt spinning process comprises the following steps: feeding the polyester blended chips into a screw extruder, wherein the screw extruder is divided into seven zones, the temperature of a screw is 260-285 ℃, the melt is extruded through high-temperature melting, melt impurities are filtered, the melt enters a spinning assembly to be subjected to melt spinning, the spinning temperature is 290 ℃, the melt spun by the spinning assembly is solidified and cooled into filaments through air flow blown out by a side blowing cooling device, the side blowing temperature in the process is 25 ℃, the side blowing speed is 0.6m/s, the side blowing humidity is 78%, polyester POY spinning is obtained in the POY melt spinning process, and polyester FDY spinning is obtained in the FDY melt spinning process;
(3) preparation of combined filament yarn
After oiling and pre-networking polyester FDY spinning, drafting the polyester FDY spinning through a drafting hot roller at 185 ℃ to obtain polyester FDY drafting yarns; after oiling and pre-networking polyester POY spinning, compounding the polyester POY spinning with polyester FDY drawn yarns through a composite yarn guide to form composite yarns, shaping the composite yarns through a shaping hot roller at the temperature of 140 ℃, and winding and forming the composite yarns through a main network guide to obtain mixed filaments;
(4) preparing terylene low-elasticity composite yarn
Feeding the obtained combined filament yarn into a false twister for false twisting deformation to obtain the terylene low-elasticity composite yarn; wherein the speed ratio of the false twister is 1.6.
The performance of the multifunctional polyester low-elasticity composite yarn prepared in the examples 1-3 is detected, and the performance detection result is shown in table 1.
TABLE 1 Performance test results of multifunctional polyester low-stretch composite yarn
As can be seen from Table 1, the polyester low-elasticity composite yarn disclosed by the invention has good mechanical properties, boiling water shrinkage and curling shrinkage, and simultaneously has high vertical wicking height and limited oxygen index, namely the composite yarn has good hygroscopicity and flame retardance.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A preparation process of multifunctional polyester low-elasticity composite yarn is characterized by comprising the following steps:
(1) preparation of polyester blend chips
Enabling the polyester wet slices to pass through a wet slice bin, entering a pre-crystallization stage, obtaining pre-crystallized PET slices after pre-crystallization, respectively drying the pre-crystallized PET slices, the flame-retardant master batches, the hydrophilic master batches and the antibacterial master batches, adding the dried pre-crystallized PET slices, the flame-retardant master batches, the hydrophilic master batches and the antibacterial master batches into an internal mixer for blending, and then carrying out extrusion granulation to obtain polyester blended slices;
(2) melt spinning
Two parallel melt spinning processes are adopted, wherein one melt spinning process is a POY melt spinning process, and the other melt spinning process is an FDY melt spinning process; the melt spinning process comprises the following steps: feeding the polyester blended chips into a screw extruder, melting at high temperature, extruding out a melt, filtering impurities of the melt, feeding the melt into a spinning assembly, carrying out melt spinning, solidifying and cooling the melt fine flow sprayed out by the spinning assembly into filaments by airflow blown out by a side air-blowing cooling device, obtaining polyester POY spinning in a POY melt spinning process, and obtaining polyester FDY spinning in an FDY melt spinning process;
(3) preparation of combined filament yarn
After oiling and pre-networking polyester FDY spinning, drafting the polyester FDY spinning through a drafting hot roller to obtain polyester FDY drafting yarns; after oiling and pre-networking polyester POY spinning, compounding the polyester POY spinning with polyester FDY drawn yarns through a composite yarn guide to form composite yarns, shaping the composite yarns through a shaping hot roller, and winding and forming the composite yarns through a main network guide to obtain mixed filament yarns;
(4) preparing terylene low-elasticity composite yarn
And feeding the obtained combined filament yarn into a false twister for false twisting and deformation to obtain the low-elasticity polyester composite yarn.
2. The preparation process of the multifunctional polyester low-elasticity composite yarn according to claim 1, which is characterized in that: in the step (1), the temperature of pre-crystallization is 170-175 ℃, the time of pre-crystallization is 12-16 min, the drying temperature is 180-185 ℃, and the drying time is 4-6 h.
3. The preparation process of the multifunctional polyester low-elasticity composite yarn according to claim 1, which is characterized in that: in the step (2), the screw temperature of a screw extruder is 260-285 ℃, the spinning temperature in the melt spinning process is 285-290 ℃, the side blowing temperature of a side blowing cooling device is 23-25 ℃, the side blowing speed is 0.4-0.6 m/s, and the side blowing humidity is 70-80%.
4. The preparation process of the multifunctional polyester low-elasticity composite yarn according to claim 1, which is characterized in that: in the step (3), the temperature of the drafting hot roller is 180-190 ℃, and the temperature of the shaping hot roller is 135-140 ℃.
5. The process for preparing the multifunctional terylene low-elasticity composite yarn as claimed in claim 1, wherein the speed ratio of the false twister is 1.3-1.6.
6. The preparation process of the multifunctional polyester low-elasticity composite yarn according to claim 1, wherein the flame-retardant master batch is a phosphorus halogen-free flame-retardant master batch.
7. The preparation process of the multifunctional terylene low-elasticity composite yarn according to claim 1, wherein the antibacterial master batch is prepared from a nano silver ion antibacterial agent, polyester and a dispersing agent.
8. The preparation process of the multifunctional polyester low-elasticity composite yarn according to claim 1, wherein in the step (1), the mass fraction of the pre-crystallized PET slice is 85-90%, the mass fraction of the flame-retardant master batch is 2-8%, the mass fraction of the hydrophilic master batch is 1-5%, and the mass fraction of the antibacterial master batch is 1-5%.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379057A (en) * | 2020-04-23 | 2020-07-07 | 罗莱生活科技股份有限公司 | Multifunctional skin care yarn and preparation method and application thereof |
| CN113174647A (en) * | 2021-04-25 | 2021-07-27 | 杭州永兴化纤有限公司 | Process for producing colored polyester cotton-like special yarn |
| CN114934323A (en) * | 2022-05-19 | 2022-08-23 | 浙江裕源纺织有限公司 | Moisture-absorbing and sweat-releasing POY preparation process |
| CN115058813A (en) * | 2022-05-25 | 2022-09-16 | 无锡裕盛纱线有限公司 | Production method of bi-component polyester fiber wool-like yarn |
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